http://git-wip-us.apache.org/repos/asf/hbase-site/blob/6b94a2f2/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.ReplicationBarrierResult.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.ReplicationBarrierResult.html b/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.ReplicationBarrierResult.html new file mode 100644 index 0000000..8fffb89 --- /dev/null +++ b/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.ReplicationBarrierResult.html @@ -0,0 +1,2162 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> +<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> +<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> +<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> +<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> +<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> +<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> +<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> +<span class="sourceLineNo">009</span> *<a name="line.9"></a> +<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> +<span class="sourceLineNo">011</span> *<a name="line.11"></a> +<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> +<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> +<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> +<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> +<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> +<span class="sourceLineNo">017</span> */<a name="line.17"></a> +<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase;<a name="line.18"></a> +<span class="sourceLineNo">019</span><a name="line.19"></a> +<span class="sourceLineNo">020</span>import edu.umd.cs.findbugs.annotations.NonNull;<a name="line.20"></a> +<span class="sourceLineNo">021</span>import edu.umd.cs.findbugs.annotations.Nullable;<a name="line.21"></a> +<span class="sourceLineNo">022</span>import java.io.Closeable;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.io.InterruptedIOException;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.ArrayList;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.util.Arrays;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import java.util.Collections;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import java.util.LinkedHashMap;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import java.util.NavigableMap;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import java.util.Set;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import java.util.SortedMap;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import java.util.TreeMap;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import java.util.regex.Matcher;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import java.util.regex.Pattern;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import java.util.stream.Collectors;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import java.util.stream.Stream;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.conf.Configuration;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.Cell.Type;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.Consistency;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.Get;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.Put;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.RegionLocator;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.client.RegionServerCallable;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.client.Result;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.ResultScanner;<a name="line.54"></a> +<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.55"></a> +<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.client.Table;<a name="line.56"></a> +<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.57"></a> +<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.58"></a> +<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.ipc.CoprocessorRpcChannel;<a name="line.59"></a> +<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.60"></a> +<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.61"></a> +<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.62"></a> +<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;<a name="line.63"></a> +<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier;<a name="line.64"></a> +<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier.RegionSpecifierType;<a name="line.65"></a> +<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos;<a name="line.66"></a> +<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos.MutateRowsRequest;<a name="line.67"></a> +<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos.MutateRowsResponse;<a name="line.68"></a> +<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.69"></a> +<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.70"></a> +<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.util.ExceptionUtil;<a name="line.71"></a> +<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.72"></a> +<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.util.PairOfSameType;<a name="line.73"></a> +<span class="sourceLineNo">074</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.74"></a> +<span class="sourceLineNo">075</span>import org.slf4j.Logger;<a name="line.75"></a> +<span class="sourceLineNo">076</span>import org.slf4j.LoggerFactory;<a name="line.76"></a> +<span class="sourceLineNo">077</span><a name="line.77"></a> +<span class="sourceLineNo">078</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.78"></a> +<span class="sourceLineNo">079</span><a name="line.79"></a> +<span class="sourceLineNo">080</span>/**<a name="line.80"></a> +<span class="sourceLineNo">081</span> * <p><a name="line.81"></a> +<span class="sourceLineNo">082</span> * Read/write operations on region and assignment information store in <code>hbase:meta</code>.<a name="line.82"></a> +<span class="sourceLineNo">083</span> * </p><a name="line.83"></a> +<span class="sourceLineNo">084</span> * <p><a name="line.84"></a> +<span class="sourceLineNo">085</span> * Some of the methods of this class take ZooKeeperWatcher as a param. The only reason for this is<a name="line.85"></a> +<span class="sourceLineNo">086</span> * because when used on client-side (like from HBaseAdmin), we want to use short-living connection<a name="line.86"></a> +<span class="sourceLineNo">087</span> * (opened before each operation, closed right after), while when used on HM or HRS (like in<a name="line.87"></a> +<span class="sourceLineNo">088</span> * AssignmentManager) we want permanent connection.<a name="line.88"></a> +<span class="sourceLineNo">089</span> * </p><a name="line.89"></a> +<span class="sourceLineNo">090</span> * <p><a name="line.90"></a> +<span class="sourceLineNo">091</span> * HBASE-10070 adds a replicaId to HRI, meaning more than one HRI can be defined for the same table<a name="line.91"></a> +<span class="sourceLineNo">092</span> * range (table, startKey, endKey). For every range, there will be at least one HRI defined which is<a name="line.92"></a> +<span class="sourceLineNo">093</span> * called default replica.<a name="line.93"></a> +<span class="sourceLineNo">094</span> * </p><a name="line.94"></a> +<span class="sourceLineNo">095</span> * <p><a name="line.95"></a> +<span class="sourceLineNo">096</span> * Meta layout (as of 0.98 + HBASE-10070) is like:<a name="line.96"></a> +<span class="sourceLineNo">097</span> *<a name="line.97"></a> +<span class="sourceLineNo">098</span> * <pre><a name="line.98"></a> +<span class="sourceLineNo">099</span> * For each table there is single row in column family 'table' formatted:<a name="line.99"></a> +<span class="sourceLineNo">100</span> * &lt;tableName&gt; including namespace and columns are:<a name="line.100"></a> +<span class="sourceLineNo">101</span> * table: state => contains table state<a name="line.101"></a> +<span class="sourceLineNo">102</span> *<a name="line.102"></a> +<span class="sourceLineNo">103</span> * For each table range, there is a single row, formatted like:<a name="line.103"></a> +<span class="sourceLineNo">104</span> * &lt;tableName&gt;,&lt;startKey&gt;,&lt;regionId&gt;,&lt;encodedRegionName&gt;.<a name="line.104"></a> +<span class="sourceLineNo">105</span> * This row corresponds to the regionName of the default region replica.<a name="line.105"></a> +<span class="sourceLineNo">106</span> * Columns are:<a name="line.106"></a> +<span class="sourceLineNo">107</span> * info:regioninfo => contains serialized HRI for the default region replica<a name="line.107"></a> +<span class="sourceLineNo">108</span> * info:server => contains hostname:port (in string form) for the server hosting<a name="line.108"></a> +<span class="sourceLineNo">109</span> * the default regionInfo replica<a name="line.109"></a> +<span class="sourceLineNo">110</span> * info:server_&lt;replicaId&gt => contains hostname:port (in string form) for the server hosting<a name="line.110"></a> +<span class="sourceLineNo">111</span> * the regionInfo replica with replicaId<a name="line.111"></a> +<span class="sourceLineNo">112</span> * info:serverstartcode => contains server start code (in binary long form) for the server<a name="line.112"></a> +<span class="sourceLineNo">113</span> * hosting the default regionInfo replica<a name="line.113"></a> +<span class="sourceLineNo">114</span> * info:serverstartcode_&lt;replicaId&gt => contains server start code (in binary long form) for<a name="line.114"></a> +<span class="sourceLineNo">115</span> * the server hosting the regionInfo replica with<a name="line.115"></a> +<span class="sourceLineNo">116</span> * replicaId<a name="line.116"></a> +<span class="sourceLineNo">117</span> * info:seqnumDuringOpen => contains seqNum (in binary long form) for the region at the time<a name="line.117"></a> +<span class="sourceLineNo">118</span> * the server opened the region with default replicaId<a name="line.118"></a> +<span class="sourceLineNo">119</span> * info:seqnumDuringOpen_&lt;replicaId&gt => contains seqNum (in binary long form) for the region<a name="line.119"></a> +<span class="sourceLineNo">120</span> * at the time the server opened the region with<a name="line.120"></a> +<span class="sourceLineNo">121</span> * replicaId<a name="line.121"></a> +<span class="sourceLineNo">122</span> * info:splitA => contains a serialized HRI for the first daughter region if the<a name="line.122"></a> +<span class="sourceLineNo">123</span> * region is split<a name="line.123"></a> +<span class="sourceLineNo">124</span> * info:splitB => contains a serialized HRI for the second daughter region if the<a name="line.124"></a> +<span class="sourceLineNo">125</span> * region is split<a name="line.125"></a> +<span class="sourceLineNo">126</span> * info:mergeA => contains a serialized HRI for the first parent region if the<a name="line.126"></a> +<span class="sourceLineNo">127</span> * region is the result of a merge<a name="line.127"></a> +<span class="sourceLineNo">128</span> * info:mergeB => contains a serialized HRI for the second parent region if the<a name="line.128"></a> +<span class="sourceLineNo">129</span> * region is the result of a merge<a name="line.129"></a> +<span class="sourceLineNo">130</span> * </pre><a name="line.130"></a> +<span class="sourceLineNo">131</span> * </p><a name="line.131"></a> +<span class="sourceLineNo">132</span> * <p><a name="line.132"></a> +<span class="sourceLineNo">133</span> * The actual layout of meta should be encapsulated inside MetaTableAccessor methods, and should not<a name="line.133"></a> +<span class="sourceLineNo">134</span> * leak out of it (through Result objects, etc)<a name="line.134"></a> +<span class="sourceLineNo">135</span> * </p><a name="line.135"></a> +<span class="sourceLineNo">136</span> */<a name="line.136"></a> +<span class="sourceLineNo">137</span>@InterfaceAudience.Private<a name="line.137"></a> +<span class="sourceLineNo">138</span>public class MetaTableAccessor {<a name="line.138"></a> +<span class="sourceLineNo">139</span><a name="line.139"></a> +<span class="sourceLineNo">140</span> private static final Logger LOG = LoggerFactory.getLogger(MetaTableAccessor.class);<a name="line.140"></a> +<span class="sourceLineNo">141</span> private static final Logger METALOG = LoggerFactory.getLogger("org.apache.hadoop.hbase.META");<a name="line.141"></a> +<span class="sourceLineNo">142</span><a name="line.142"></a> +<span class="sourceLineNo">143</span> private static final byte[] META_REGION_PREFIX;<a name="line.143"></a> +<span class="sourceLineNo">144</span> static {<a name="line.144"></a> +<span class="sourceLineNo">145</span> // Copy the prefix from FIRST_META_REGIONINFO into META_REGION_PREFIX.<a name="line.145"></a> +<span class="sourceLineNo">146</span> // FIRST_META_REGIONINFO == 'hbase:meta,,1'. META_REGION_PREFIX == 'hbase:meta,'<a name="line.146"></a> +<span class="sourceLineNo">147</span> int len = RegionInfoBuilder.FIRST_META_REGIONINFO.getRegionName().length - 2;<a name="line.147"></a> +<span class="sourceLineNo">148</span> META_REGION_PREFIX = new byte [len];<a name="line.148"></a> +<span class="sourceLineNo">149</span> System.arraycopy(RegionInfoBuilder.FIRST_META_REGIONINFO.getRegionName(), 0,<a name="line.149"></a> +<span class="sourceLineNo">150</span> META_REGION_PREFIX, 0, len);<a name="line.150"></a> +<span class="sourceLineNo">151</span> }<a name="line.151"></a> +<span class="sourceLineNo">152</span><a name="line.152"></a> +<span class="sourceLineNo">153</span> private static final byte[] REPLICATION_PARENT_QUALIFIER = Bytes.toBytes("parent");<a name="line.153"></a> +<span class="sourceLineNo">154</span><a name="line.154"></a> +<span class="sourceLineNo">155</span> private static final String REPLICATION_PARENT_SEPARATOR = "|";<a name="line.155"></a> +<span class="sourceLineNo">156</span><a name="line.156"></a> +<span class="sourceLineNo">157</span> private static final String REPLICATION_PARENT_SEPARATOR_REGEX = "\\|";<a name="line.157"></a> +<span class="sourceLineNo">158</span> /**<a name="line.158"></a> +<span class="sourceLineNo">159</span> * Lists all of the table regions currently in META.<a name="line.159"></a> +<span class="sourceLineNo">160</span> * Deprecated, keep there until some test use this.<a name="line.160"></a> +<span class="sourceLineNo">161</span> * @param connection what we will use<a name="line.161"></a> +<span class="sourceLineNo">162</span> * @param tableName table to list<a name="line.162"></a> +<span class="sourceLineNo">163</span> * @return Map of all user-space regions to servers<a name="line.163"></a> +<span class="sourceLineNo">164</span> * @deprecated use {@link #getTableRegionsAndLocations}, region can have multiple locations<a name="line.164"></a> +<span class="sourceLineNo">165</span> */<a name="line.165"></a> +<span class="sourceLineNo">166</span> @Deprecated<a name="line.166"></a> +<span class="sourceLineNo">167</span> public static NavigableMap<RegionInfo, ServerName> allTableRegions(<a name="line.167"></a> +<span class="sourceLineNo">168</span> Connection connection, final TableName tableName) throws IOException {<a name="line.168"></a> +<span class="sourceLineNo">169</span> final NavigableMap<RegionInfo, ServerName> regions = new TreeMap<>();<a name="line.169"></a> +<span class="sourceLineNo">170</span> Visitor visitor = new TableVisitorBase(tableName) {<a name="line.170"></a> +<span class="sourceLineNo">171</span> @Override<a name="line.171"></a> +<span class="sourceLineNo">172</span> public boolean visitInternal(Result result) throws IOException {<a name="line.172"></a> +<span class="sourceLineNo">173</span> RegionLocations locations = getRegionLocations(result);<a name="line.173"></a> +<span class="sourceLineNo">174</span> if (locations == null) return true;<a name="line.174"></a> +<span class="sourceLineNo">175</span> for (HRegionLocation loc : locations.getRegionLocations()) {<a name="line.175"></a> +<span class="sourceLineNo">176</span> if (loc != null) {<a name="line.176"></a> +<span class="sourceLineNo">177</span> RegionInfo regionInfo = loc.getRegionInfo();<a name="line.177"></a> +<span class="sourceLineNo">178</span> regions.put(regionInfo, loc.getServerName());<a name="line.178"></a> +<span class="sourceLineNo">179</span> }<a name="line.179"></a> +<span class="sourceLineNo">180</span> }<a name="line.180"></a> +<span class="sourceLineNo">181</span> return true;<a name="line.181"></a> +<span class="sourceLineNo">182</span> }<a name="line.182"></a> +<span class="sourceLineNo">183</span> };<a name="line.183"></a> +<span class="sourceLineNo">184</span> scanMetaForTableRegions(connection, visitor, tableName);<a name="line.184"></a> +<span class="sourceLineNo">185</span> return regions;<a name="line.185"></a> +<span class="sourceLineNo">186</span> }<a name="line.186"></a> +<span class="sourceLineNo">187</span><a name="line.187"></a> +<span class="sourceLineNo">188</span> @InterfaceAudience.Private<a name="line.188"></a> +<span class="sourceLineNo">189</span> public enum QueryType {<a name="line.189"></a> +<span class="sourceLineNo">190</span> ALL(HConstants.TABLE_FAMILY, HConstants.CATALOG_FAMILY),<a name="line.190"></a> +<span class="sourceLineNo">191</span> REGION(HConstants.CATALOG_FAMILY),<a name="line.191"></a> +<span class="sourceLineNo">192</span> TABLE(HConstants.TABLE_FAMILY);<a name="line.192"></a> +<span class="sourceLineNo">193</span><a name="line.193"></a> +<span class="sourceLineNo">194</span> private final byte[][] families;<a name="line.194"></a> +<span class="sourceLineNo">195</span><a name="line.195"></a> +<span class="sourceLineNo">196</span> QueryType(byte[]... families) {<a name="line.196"></a> +<span class="sourceLineNo">197</span> this.families = families;<a name="line.197"></a> +<span class="sourceLineNo">198</span> }<a name="line.198"></a> +<span class="sourceLineNo">199</span><a name="line.199"></a> +<span class="sourceLineNo">200</span> byte[][] getFamilies() {<a name="line.200"></a> +<span class="sourceLineNo">201</span> return this.families;<a name="line.201"></a> +<span class="sourceLineNo">202</span> }<a name="line.202"></a> +<span class="sourceLineNo">203</span> }<a name="line.203"></a> +<span class="sourceLineNo">204</span><a name="line.204"></a> +<span class="sourceLineNo">205</span> /** The delimiter for meta columns for replicaIds &gt; 0 */<a name="line.205"></a> +<span class="sourceLineNo">206</span> protected static final char META_REPLICA_ID_DELIMITER = '_';<a name="line.206"></a> +<span class="sourceLineNo">207</span><a name="line.207"></a> +<span class="sourceLineNo">208</span> /** A regex for parsing server columns from meta. See above javadoc for meta layout */<a name="line.208"></a> +<span class="sourceLineNo">209</span> private static final Pattern SERVER_COLUMN_PATTERN<a name="line.209"></a> +<span class="sourceLineNo">210</span> = Pattern.compile("^server(_[0-9a-fA-F]{4})?$");<a name="line.210"></a> +<span class="sourceLineNo">211</span><a name="line.211"></a> +<span class="sourceLineNo">212</span> ////////////////////////<a name="line.212"></a> +<span class="sourceLineNo">213</span> // Reading operations //<a name="line.213"></a> +<span class="sourceLineNo">214</span> ////////////////////////<a name="line.214"></a> +<span class="sourceLineNo">215</span><a name="line.215"></a> +<span class="sourceLineNo">216</span> /**<a name="line.216"></a> +<span class="sourceLineNo">217</span> * Performs a full scan of <code>hbase:meta</code> for regions.<a name="line.217"></a> +<span class="sourceLineNo">218</span> * @param connection connection we're using<a name="line.218"></a> +<span class="sourceLineNo">219</span> * @param visitor Visitor invoked against each row in regions family.<a name="line.219"></a> +<span class="sourceLineNo">220</span> */<a name="line.220"></a> +<span class="sourceLineNo">221</span> public static void fullScanRegions(Connection connection,<a name="line.221"></a> +<span class="sourceLineNo">222</span> final Visitor visitor)<a name="line.222"></a> +<span class="sourceLineNo">223</span> throws IOException {<a name="line.223"></a> +<span class="sourceLineNo">224</span> scanMeta(connection, null, null, QueryType.REGION, visitor);<a name="line.224"></a> +<span class="sourceLineNo">225</span> }<a name="line.225"></a> +<span class="sourceLineNo">226</span><a name="line.226"></a> +<span class="sourceLineNo">227</span> /**<a name="line.227"></a> +<span class="sourceLineNo">228</span> * Performs a full scan of <code>hbase:meta</code> for regions.<a name="line.228"></a> +<span class="sourceLineNo">229</span> * @param connection connection we're using<a name="line.229"></a> +<span class="sourceLineNo">230</span> */<a name="line.230"></a> +<span class="sourceLineNo">231</span> public static List<Result> fullScanRegions(Connection connection)<a name="line.231"></a> +<span class="sourceLineNo">232</span> throws IOException {<a name="line.232"></a> +<span class="sourceLineNo">233</span> return fullScan(connection, QueryType.REGION);<a name="line.233"></a> +<span class="sourceLineNo">234</span> }<a name="line.234"></a> +<span class="sourceLineNo">235</span><a name="line.235"></a> +<span class="sourceLineNo">236</span> /**<a name="line.236"></a> +<span class="sourceLineNo">237</span> * Performs a full scan of <code>hbase:meta</code> for tables.<a name="line.237"></a> +<span class="sourceLineNo">238</span> * @param connection connection we're using<a name="line.238"></a> +<span class="sourceLineNo">239</span> * @param visitor Visitor invoked against each row in tables family.<a name="line.239"></a> +<span class="sourceLineNo">240</span> */<a name="line.240"></a> +<span class="sourceLineNo">241</span> public static void fullScanTables(Connection connection,<a name="line.241"></a> +<span class="sourceLineNo">242</span> final Visitor visitor)<a name="line.242"></a> +<span class="sourceLineNo">243</span> throws IOException {<a name="line.243"></a> +<span class="sourceLineNo">244</span> scanMeta(connection, null, null, QueryType.TABLE, visitor);<a name="line.244"></a> +<span class="sourceLineNo">245</span> }<a name="line.245"></a> +<span class="sourceLineNo">246</span><a name="line.246"></a> +<span class="sourceLineNo">247</span> /**<a name="line.247"></a> +<span class="sourceLineNo">248</span> * Performs a full scan of <code>hbase:meta</code>.<a name="line.248"></a> +<span class="sourceLineNo">249</span> * @param connection connection we're using<a name="line.249"></a> +<span class="sourceLineNo">250</span> * @param type scanned part of meta<a name="line.250"></a> +<span class="sourceLineNo">251</span> * @return List of {@link Result}<a name="line.251"></a> +<span class="sourceLineNo">252</span> */<a name="line.252"></a> +<span class="sourceLineNo">253</span> public static List<Result> fullScan(Connection connection, QueryType type)<a name="line.253"></a> +<span class="sourceLineNo">254</span> throws IOException {<a name="line.254"></a> +<span class="sourceLineNo">255</span> CollectAllVisitor v = new CollectAllVisitor();<a name="line.255"></a> +<span class="sourceLineNo">256</span> scanMeta(connection, null, null, type, v);<a name="line.256"></a> +<span class="sourceLineNo">257</span> return v.getResults();<a name="line.257"></a> +<span class="sourceLineNo">258</span> }<a name="line.258"></a> +<span class="sourceLineNo">259</span><a name="line.259"></a> +<span class="sourceLineNo">260</span> /**<a name="line.260"></a> +<span class="sourceLineNo">261</span> * Callers should call close on the returned {@link Table} instance.<a name="line.261"></a> +<span class="sourceLineNo">262</span> * @param connection connection we're using to access Meta<a name="line.262"></a> +<span class="sourceLineNo">263</span> * @return An {@link Table} for <code>hbase:meta</code><a name="line.263"></a> +<span class="sourceLineNo">264</span> */<a name="line.264"></a> +<span class="sourceLineNo">265</span> public static Table getMetaHTable(final Connection connection)<a name="line.265"></a> +<span class="sourceLineNo">266</span> throws IOException {<a name="line.266"></a> +<span class="sourceLineNo">267</span> // We used to pass whole CatalogTracker in here, now we just pass in Connection<a name="line.267"></a> +<span class="sourceLineNo">268</span> if (connection == null) {<a name="line.268"></a> +<span class="sourceLineNo">269</span> throw new NullPointerException("No connection");<a name="line.269"></a> +<span class="sourceLineNo">270</span> } else if (connection.isClosed()) {<a name="line.270"></a> +<span class="sourceLineNo">271</span> throw new IOException("connection is closed");<a name="line.271"></a> +<span class="sourceLineNo">272</span> }<a name="line.272"></a> +<span class="sourceLineNo">273</span> return connection.getTable(TableName.META_TABLE_NAME);<a name="line.273"></a> +<span class="sourceLineNo">274</span> }<a name="line.274"></a> +<span class="sourceLineNo">275</span><a name="line.275"></a> +<span class="sourceLineNo">276</span> /**<a name="line.276"></a> +<span class="sourceLineNo">277</span> * @param t Table to use (will be closed when done).<a name="line.277"></a> +<span class="sourceLineNo">278</span> * @param g Get to run<a name="line.278"></a> +<span class="sourceLineNo">279</span> */<a name="line.279"></a> +<span class="sourceLineNo">280</span> private static Result get(final Table t, final Get g) throws IOException {<a name="line.280"></a> +<span class="sourceLineNo">281</span> if (t == null) return null;<a name="line.281"></a> +<span class="sourceLineNo">282</span> try {<a name="line.282"></a> +<span class="sourceLineNo">283</span> return t.get(g);<a name="line.283"></a> +<span class="sourceLineNo">284</span> } finally {<a name="line.284"></a> +<span class="sourceLineNo">285</span> t.close();<a name="line.285"></a> +<span class="sourceLineNo">286</span> }<a name="line.286"></a> +<span class="sourceLineNo">287</span> }<a name="line.287"></a> +<span class="sourceLineNo">288</span><a name="line.288"></a> +<span class="sourceLineNo">289</span> /**<a name="line.289"></a> +<span class="sourceLineNo">290</span> * Gets the region info and assignment for the specified region.<a name="line.290"></a> +<span class="sourceLineNo">291</span> * @param connection connection we're using<a name="line.291"></a> +<span class="sourceLineNo">292</span> * @param regionName Region to lookup.<a name="line.292"></a> +<span class="sourceLineNo">293</span> * @return Location and RegionInfo for <code>regionName</code><a name="line.293"></a> +<span class="sourceLineNo">294</span> * @deprecated use {@link #getRegionLocation(Connection, byte[])} instead<a name="line.294"></a> +<span class="sourceLineNo">295</span> */<a name="line.295"></a> +<span class="sourceLineNo">296</span> @Deprecated<a name="line.296"></a> +<span class="sourceLineNo">297</span> public static Pair<RegionInfo, ServerName> getRegion(Connection connection, byte [] regionName)<a name="line.297"></a> +<span class="sourceLineNo">298</span> throws IOException {<a name="line.298"></a> +<span class="sourceLineNo">299</span> HRegionLocation location = getRegionLocation(connection, regionName);<a name="line.299"></a> +<span class="sourceLineNo">300</span> return location == null<a name="line.300"></a> +<span class="sourceLineNo">301</span> ? null<a name="line.301"></a> +<span class="sourceLineNo">302</span> : new Pair<>(location.getRegionInfo(), location.getServerName());<a name="line.302"></a> +<span class="sourceLineNo">303</span> }<a name="line.303"></a> +<span class="sourceLineNo">304</span><a name="line.304"></a> +<span class="sourceLineNo">305</span> /**<a name="line.305"></a> +<span class="sourceLineNo">306</span> * Returns the HRegionLocation from meta for the given region<a name="line.306"></a> +<span class="sourceLineNo">307</span> * @param connection connection we're using<a name="line.307"></a> +<span class="sourceLineNo">308</span> * @param regionName region we're looking for<a name="line.308"></a> +<span class="sourceLineNo">309</span> * @return HRegionLocation for the given region<a name="line.309"></a> +<span class="sourceLineNo">310</span> */<a name="line.310"></a> +<span class="sourceLineNo">311</span> public static HRegionLocation getRegionLocation(Connection connection, byte[] regionName)<a name="line.311"></a> +<span class="sourceLineNo">312</span> throws IOException {<a name="line.312"></a> +<span class="sourceLineNo">313</span> byte[] row = regionName;<a name="line.313"></a> +<span class="sourceLineNo">314</span> RegionInfo parsedInfo = null;<a name="line.314"></a> +<span class="sourceLineNo">315</span> try {<a name="line.315"></a> +<span class="sourceLineNo">316</span> parsedInfo = parseRegionInfoFromRegionName(regionName);<a name="line.316"></a> +<span class="sourceLineNo">317</span> row = getMetaKeyForRegion(parsedInfo);<a name="line.317"></a> +<span class="sourceLineNo">318</span> } catch (Exception parseEx) {<a name="line.318"></a> +<span class="sourceLineNo">319</span> // Ignore. This is used with tableName passed as regionName.<a name="line.319"></a> +<span class="sourceLineNo">320</span> }<a name="line.320"></a> +<span class="sourceLineNo">321</span> Get get = new Get(row);<a name="line.321"></a> +<span class="sourceLineNo">322</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.322"></a> +<span class="sourceLineNo">323</span> Result r = get(getMetaHTable(connection), get);<a name="line.323"></a> +<span class="sourceLineNo">324</span> RegionLocations locations = getRegionLocations(r);<a name="line.324"></a> +<span class="sourceLineNo">325</span> return locations == null ? null<a name="line.325"></a> +<span class="sourceLineNo">326</span> : locations.getRegionLocation(parsedInfo == null ? 0 : parsedInfo.getReplicaId());<a name="line.326"></a> +<span class="sourceLineNo">327</span> }<a name="line.327"></a> +<span class="sourceLineNo">328</span><a name="line.328"></a> +<span class="sourceLineNo">329</span> /**<a name="line.329"></a> +<span class="sourceLineNo">330</span> * Returns the HRegionLocation from meta for the given region<a name="line.330"></a> +<span class="sourceLineNo">331</span> * @param connection connection we're using<a name="line.331"></a> +<span class="sourceLineNo">332</span> * @param regionInfo region information<a name="line.332"></a> +<span class="sourceLineNo">333</span> * @return HRegionLocation for the given region<a name="line.333"></a> +<span class="sourceLineNo">334</span> */<a name="line.334"></a> +<span class="sourceLineNo">335</span> public static HRegionLocation getRegionLocation(Connection connection, RegionInfo regionInfo)<a name="line.335"></a> +<span class="sourceLineNo">336</span> throws IOException {<a name="line.336"></a> +<span class="sourceLineNo">337</span> byte[] row = getMetaKeyForRegion(regionInfo);<a name="line.337"></a> +<span class="sourceLineNo">338</span> Get get = new Get(row);<a name="line.338"></a> +<span class="sourceLineNo">339</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.339"></a> +<span class="sourceLineNo">340</span> Result r = get(getMetaHTable(connection), get);<a name="line.340"></a> +<span class="sourceLineNo">341</span> return getRegionLocation(r, regionInfo, regionInfo.getReplicaId());<a name="line.341"></a> +<span class="sourceLineNo">342</span> }<a name="line.342"></a> +<span class="sourceLineNo">343</span><a name="line.343"></a> +<span class="sourceLineNo">344</span> /** Returns the row key to use for this regionInfo */<a name="line.344"></a> +<span class="sourceLineNo">345</span> public static byte[] getMetaKeyForRegion(RegionInfo regionInfo) {<a name="line.345"></a> +<span class="sourceLineNo">346</span> return RegionReplicaUtil.getRegionInfoForDefaultReplica(regionInfo).getRegionName();<a name="line.346"></a> +<span class="sourceLineNo">347</span> }<a name="line.347"></a> +<span class="sourceLineNo">348</span><a name="line.348"></a> +<span class="sourceLineNo">349</span> /** Returns an HRI parsed from this regionName. Not all the fields of the HRI<a name="line.349"></a> +<span class="sourceLineNo">350</span> * is stored in the name, so the returned object should only be used for the fields<a name="line.350"></a> +<span class="sourceLineNo">351</span> * in the regionName.<a name="line.351"></a> +<span class="sourceLineNo">352</span> */<a name="line.352"></a> +<span class="sourceLineNo">353</span> public static RegionInfo parseRegionInfoFromRegionName(byte[] regionName) throws IOException {<a name="line.353"></a> +<span class="sourceLineNo">354</span> byte[][] fields = RegionInfo.parseRegionName(regionName);<a name="line.354"></a> +<span class="sourceLineNo">355</span> long regionId = Long.parseLong(Bytes.toString(fields[2]));<a name="line.355"></a> +<span class="sourceLineNo">356</span> int replicaId = fields.length > 3 ? Integer.parseInt(Bytes.toString(fields[3]), 16) : 0;<a name="line.356"></a> +<span class="sourceLineNo">357</span> return RegionInfoBuilder.newBuilder(TableName.valueOf(fields[0]))<a name="line.357"></a> +<span class="sourceLineNo">358</span> .setStartKey(fields[1])<a name="line.358"></a> +<span class="sourceLineNo">359</span> .setEndKey(fields[2])<a name="line.359"></a> +<span class="sourceLineNo">360</span> .setSplit(false)<a name="line.360"></a> +<span class="sourceLineNo">361</span> .setRegionId(regionId)<a name="line.361"></a> +<span class="sourceLineNo">362</span> .setReplicaId(replicaId)<a name="line.362"></a> +<span class="sourceLineNo">363</span> .build();<a name="line.363"></a> +<span class="sourceLineNo">364</span> }<a name="line.364"></a> +<span class="sourceLineNo">365</span><a name="line.365"></a> +<span class="sourceLineNo">366</span> /**<a name="line.366"></a> +<span class="sourceLineNo">367</span> * Gets the result in hbase:meta for the specified region.<a name="line.367"></a> +<span class="sourceLineNo">368</span> * @param connection connection we're using<a name="line.368"></a> +<span class="sourceLineNo">369</span> * @param regionName region we're looking for<a name="line.369"></a> +<span class="sourceLineNo">370</span> * @return result of the specified region<a name="line.370"></a> +<span class="sourceLineNo">371</span> */<a name="line.371"></a> +<span class="sourceLineNo">372</span> public static Result getRegionResult(Connection connection,<a name="line.372"></a> +<span class="sourceLineNo">373</span> byte[] regionName) throws IOException {<a name="line.373"></a> +<span class="sourceLineNo">374</span> Get get = new Get(regionName);<a name="line.374"></a> +<span class="sourceLineNo">375</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.375"></a> +<span class="sourceLineNo">376</span> return get(getMetaHTable(connection), get);<a name="line.376"></a> +<span class="sourceLineNo">377</span> }<a name="line.377"></a> +<span class="sourceLineNo">378</span><a name="line.378"></a> +<span class="sourceLineNo">379</span> /**<a name="line.379"></a> +<span class="sourceLineNo">380</span> * Get regions from the merge qualifier of the specified merged region<a name="line.380"></a> +<span class="sourceLineNo">381</span> * @return null if it doesn't contain merge qualifier, else two merge regions<a name="line.381"></a> +<span class="sourceLineNo">382</span> */<a name="line.382"></a> +<span class="sourceLineNo">383</span> @Nullable<a name="line.383"></a> +<span class="sourceLineNo">384</span> public static Pair<RegionInfo, RegionInfo> getRegionsFromMergeQualifier(<a name="line.384"></a> +<span class="sourceLineNo">385</span> Connection connection, byte[] regionName) throws IOException {<a name="line.385"></a> +<span class="sourceLineNo">386</span> Result result = getRegionResult(connection, regionName);<a name="line.386"></a> +<span class="sourceLineNo">387</span> RegionInfo mergeA = getRegionInfo(result, HConstants.MERGEA_QUALIFIER);<a name="line.387"></a> +<span class="sourceLineNo">388</span> RegionInfo mergeB = getRegionInfo(result, HConstants.MERGEB_QUALIFIER);<a name="line.388"></a> +<span class="sourceLineNo">389</span> if (mergeA == null && mergeB == null) {<a name="line.389"></a> +<span class="sourceLineNo">390</span> return null;<a name="line.390"></a> +<span class="sourceLineNo">391</span> }<a name="line.391"></a> +<span class="sourceLineNo">392</span> return new Pair<>(mergeA, mergeB);<a name="line.392"></a> +<span class="sourceLineNo">393</span> }<a name="line.393"></a> +<span class="sourceLineNo">394</span><a name="line.394"></a> +<span class="sourceLineNo">395</span> /**<a name="line.395"></a> +<span class="sourceLineNo">396</span> * Checks if the specified table exists. Looks at the hbase:meta table hosted on<a name="line.396"></a> +<span class="sourceLineNo">397</span> * the specified server.<a name="line.397"></a> +<span class="sourceLineNo">398</span> * @param connection connection we're using<a name="line.398"></a> +<span class="sourceLineNo">399</span> * @param tableName table to check<a name="line.399"></a> +<span class="sourceLineNo">400</span> * @return true if the table exists in meta, false if not<a name="line.400"></a> +<span class="sourceLineNo">401</span> */<a name="line.401"></a> +<span class="sourceLineNo">402</span> public static boolean tableExists(Connection connection,<a name="line.402"></a> +<span class="sourceLineNo">403</span> final TableName tableName)<a name="line.403"></a> +<span class="sourceLineNo">404</span> throws IOException {<a name="line.404"></a> +<span class="sourceLineNo">405</span> // Catalog tables always exist.<a name="line.405"></a> +<span class="sourceLineNo">406</span> return tableName.equals(TableName.META_TABLE_NAME)<a name="line.406"></a> +<span class="sourceLineNo">407</span> || getTableState(connection, tableName) != null;<a name="line.407"></a> +<span class="sourceLineNo">408</span> }<a name="line.408"></a> +<span class="sourceLineNo">409</span><a name="line.409"></a> +<span class="sourceLineNo">410</span> /**<a name="line.410"></a> +<span class="sourceLineNo">411</span> * Lists all of the regions currently in META.<a name="line.411"></a> +<span class="sourceLineNo">412</span> *<a name="line.412"></a> +<span class="sourceLineNo">413</span> * @param connection to connect with<a name="line.413"></a> +<span class="sourceLineNo">414</span> * @param excludeOfflinedSplitParents False if we are to include offlined/splitparents regions,<a name="line.414"></a> +<span class="sourceLineNo">415</span> * true and we'll leave out offlined regions from returned list<a name="line.415"></a> +<span class="sourceLineNo">416</span> * @return List of all user-space regions.<a name="line.416"></a> +<span class="sourceLineNo">417</span> */<a name="line.417"></a> +<span class="sourceLineNo">418</span> @VisibleForTesting<a name="line.418"></a> +<span class="sourceLineNo">419</span> public static List<RegionInfo> getAllRegions(Connection connection,<a name="line.419"></a> +<span class="sourceLineNo">420</span> boolean excludeOfflinedSplitParents)<a name="line.420"></a> +<span class="sourceLineNo">421</span> throws IOException {<a name="line.421"></a> +<span class="sourceLineNo">422</span> List<Pair<RegionInfo, ServerName>> result;<a name="line.422"></a> +<span class="sourceLineNo">423</span><a name="line.423"></a> +<span class="sourceLineNo">424</span> result = getTableRegionsAndLocations(connection, null,<a name="line.424"></a> +<span class="sourceLineNo">425</span> excludeOfflinedSplitParents);<a name="line.425"></a> +<span class="sourceLineNo">426</span><a name="line.426"></a> +<span class="sourceLineNo">427</span> return getListOfRegionInfos(result);<a name="line.427"></a> +<span class="sourceLineNo">428</span><a name="line.428"></a> +<span class="sourceLineNo">429</span> }<a name="line.429"></a> +<span class="sourceLineNo">430</span><a name="line.430"></a> +<span class="sourceLineNo">431</span> /**<a name="line.431"></a> +<span class="sourceLineNo">432</span> * Gets all of the regions of the specified table. Do not use this method<a name="line.432"></a> +<span class="sourceLineNo">433</span> * to get meta table regions, use methods in MetaTableLocator instead.<a name="line.433"></a> +<span class="sourceLineNo">434</span> * @param connection connection we're using<a name="line.434"></a> +<span class="sourceLineNo">435</span> * @param tableName table we're looking for<a name="line.435"></a> +<span class="sourceLineNo">436</span> * @return Ordered list of {@link RegionInfo}.<a name="line.436"></a> +<span class="sourceLineNo">437</span> */<a name="line.437"></a> +<span class="sourceLineNo">438</span> public static List<RegionInfo> getTableRegions(Connection connection, TableName tableName)<a name="line.438"></a> +<span class="sourceLineNo">439</span> throws IOException {<a name="line.439"></a> +<span class="sourceLineNo">440</span> return getTableRegions(connection, tableName, false);<a name="line.440"></a> +<span class="sourceLineNo">441</span> }<a name="line.441"></a> +<span class="sourceLineNo">442</span><a name="line.442"></a> +<span class="sourceLineNo">443</span> /**<a name="line.443"></a> +<span class="sourceLineNo">444</span> * Gets all of the regions of the specified table. Do not use this method<a name="line.444"></a> +<span class="sourceLineNo">445</span> * to get meta table regions, use methods in MetaTableLocator instead.<a name="line.445"></a> +<span class="sourceLineNo">446</span> * @param connection connection we're using<a name="line.446"></a> +<span class="sourceLineNo">447</span> * @param tableName table we're looking for<a name="line.447"></a> +<span class="sourceLineNo">448</span> * @param excludeOfflinedSplitParents If true, do not include offlined split<a name="line.448"></a> +<span class="sourceLineNo">449</span> * parents in the return.<a name="line.449"></a> +<span class="sourceLineNo">450</span> * @return Ordered list of {@link RegionInfo}.<a name="line.450"></a> +<span class="sourceLineNo">451</span> */<a name="line.451"></a> +<span class="sourceLineNo">452</span> public static List<RegionInfo> getTableRegions(Connection connection, TableName tableName,<a name="line.452"></a> +<span class="sourceLineNo">453</span> final boolean excludeOfflinedSplitParents) throws IOException {<a name="line.453"></a> +<span class="sourceLineNo">454</span> List<Pair<RegionInfo, ServerName>> result =<a name="line.454"></a> +<span class="sourceLineNo">455</span> getTableRegionsAndLocations(connection, tableName, excludeOfflinedSplitParents);<a name="line.455"></a> +<span class="sourceLineNo">456</span> return getListOfRegionInfos(result);<a name="line.456"></a> +<span class="sourceLineNo">457</span> }<a name="line.457"></a> +<span class="sourceLineNo">458</span><a name="line.458"></a> +<span class="sourceLineNo">459</span> private static List<RegionInfo> getListOfRegionInfos(<a name="line.459"></a> +<span class="sourceLineNo">460</span> final List<Pair<RegionInfo, ServerName>> pairs) {<a name="line.460"></a> +<span class="sourceLineNo">461</span> if (pairs == null || pairs.isEmpty()) {<a name="line.461"></a> +<span class="sourceLineNo">462</span> return Collections.emptyList();<a name="line.462"></a> +<span class="sourceLineNo">463</span> }<a name="line.463"></a> +<span class="sourceLineNo">464</span> List<RegionInfo> result = new ArrayList<>(pairs.size());<a name="line.464"></a> +<span class="sourceLineNo">465</span> for (Pair<RegionInfo, ServerName> pair : pairs) {<a name="line.465"></a> +<span class="sourceLineNo">466</span> result.add(pair.getFirst());<a name="line.466"></a> +<span class="sourceLineNo">467</span> }<a name="line.467"></a> +<span class="sourceLineNo">468</span> return result;<a name="line.468"></a> +<span class="sourceLineNo">469</span> }<a name="line.469"></a> +<span class="sourceLineNo">470</span><a name="line.470"></a> +<span class="sourceLineNo">471</span> /**<a name="line.471"></a> +<span class="sourceLineNo">472</span> * @param tableName table we're working with<a name="line.472"></a> +<span class="sourceLineNo">473</span> * @return start row for scanning META according to query type<a name="line.473"></a> +<span class="sourceLineNo">474</span> */<a name="line.474"></a> +<span class="sourceLineNo">475</span> public static byte[] getTableStartRowForMeta(TableName tableName, QueryType type) {<a name="line.475"></a> +<span class="sourceLineNo">476</span> if (tableName == null) {<a name="line.476"></a> +<span class="sourceLineNo">477</span> return null;<a name="line.477"></a> +<span class="sourceLineNo">478</span> }<a name="line.478"></a> +<span class="sourceLineNo">479</span> switch (type) {<a name="line.479"></a> +<span class="sourceLineNo">480</span> case REGION:<a name="line.480"></a> +<span class="sourceLineNo">481</span> byte[] startRow = new byte[tableName.getName().length + 2];<a name="line.481"></a> +<span class="sourceLineNo">482</span> System.arraycopy(tableName.getName(), 0, startRow, 0, tableName.getName().length);<a name="line.482"></a> +<span class="sourceLineNo">483</span> startRow[startRow.length - 2] = HConstants.DELIMITER;<a name="line.483"></a> +<span class="sourceLineNo">484</span> startRow[startRow.length - 1] = HConstants.DELIMITER;<a name="line.484"></a> +<span class="sourceLineNo">485</span> return startRow;<a name="line.485"></a> +<span class="sourceLineNo">486</span> case ALL:<a name="line.486"></a> +<span class="sourceLineNo">487</span> case TABLE:<a name="line.487"></a> +<span class="sourceLineNo">488</span> default:<a name="line.488"></a> +<span class="sourceLineNo">489</span> return tableName.getName();<a name="line.489"></a> +<span class="sourceLineNo">490</span> }<a name="line.490"></a> +<span class="sourceLineNo">491</span> }<a name="line.491"></a> +<span class="sourceLineNo">492</span><a name="line.492"></a> +<span class="sourceLineNo">493</span> /**<a name="line.493"></a> +<span class="sourceLineNo">494</span> * @param tableName table we're working with<a name="line.494"></a> +<span class="sourceLineNo">495</span> * @return stop row for scanning META according to query type<a name="line.495"></a> +<span class="sourceLineNo">496</span> */<a name="line.496"></a> +<span class="sourceLineNo">497</span> public static byte[] getTableStopRowForMeta(TableName tableName, QueryType type) {<a name="line.497"></a> +<span class="sourceLineNo">498</span> if (tableName == null) {<a name="line.498"></a> +<span class="sourceLineNo">499</span> return null;<a name="line.499"></a> +<span class="sourceLineNo">500</span> }<a name="line.500"></a> +<span class="sourceLineNo">501</span> final byte[] stopRow;<a name="line.501"></a> +<span class="sourceLineNo">502</span> switch (type) {<a name="line.502"></a> +<span class="sourceLineNo">503</span> case REGION:<a name="line.503"></a> +<span class="sourceLineNo">504</span> stopRow = new byte[tableName.getName().length + 3];<a name="line.504"></a> +<span class="sourceLineNo">505</span> System.arraycopy(tableName.getName(), 0, stopRow, 0, tableName.getName().length);<a name="line.505"></a> +<span class="sourceLineNo">506</span> stopRow[stopRow.length - 3] = ' ';<a name="line.506"></a> +<span class="sourceLineNo">507</span> stopRow[stopRow.length - 2] = HConstants.DELIMITER;<a name="line.507"></a> +<span class="sourceLineNo">508</span> stopRow[stopRow.length - 1] = HConstants.DELIMITER;<a name="line.508"></a> +<span class="sourceLineNo">509</span> break;<a name="line.509"></a> +<span class="sourceLineNo">510</span> case ALL:<a name="line.510"></a> +<span class="sourceLineNo">511</span> case TABLE:<a name="line.511"></a> +<span class="sourceLineNo">512</span> default:<a name="line.512"></a> +<span class="sourceLineNo">513</span> stopRow = new byte[tableName.getName().length + 1];<a name="line.513"></a> +<span class="sourceLineNo">514</span> System.arraycopy(tableName.getName(), 0, stopRow, 0, tableName.getName().length);<a name="line.514"></a> +<span class="sourceLineNo">515</span> stopRow[stopRow.length - 1] = ' ';<a name="line.515"></a> +<span class="sourceLineNo">516</span> break;<a name="line.516"></a> +<span class="sourceLineNo">517</span> }<a name="line.517"></a> +<span class="sourceLineNo">518</span> return stopRow;<a name="line.518"></a> +<span class="sourceLineNo">519</span> }<a name="line.519"></a> +<span class="sourceLineNo">520</span><a name="line.520"></a> +<span class="sourceLineNo">521</span> /**<a name="line.521"></a> +<span class="sourceLineNo">522</span> * This method creates a Scan object that will only scan catalog rows that<a name="line.522"></a> +<span class="sourceLineNo">523</span> * belong to the specified table. It doesn't specify any columns.<a name="line.523"></a> +<span class="sourceLineNo">524</span> * This is a better alternative to just using a start row and scan until<a name="line.524"></a> +<span class="sourceLineNo">525</span> * it hits a new table since that requires parsing the HRI to get the table<a name="line.525"></a> +<span class="sourceLineNo">526</span> * name.<a name="line.526"></a> +<span class="sourceLineNo">527</span> * @param tableName bytes of table's name<a name="line.527"></a> +<span class="sourceLineNo">528</span> * @return configured Scan object<a name="line.528"></a> +<span class="sourceLineNo">529</span> */<a name="line.529"></a> +<span class="sourceLineNo">530</span> @Deprecated<a name="line.530"></a> +<span class="sourceLineNo">531</span> public static Scan getScanForTableName(Connection connection, TableName tableName) {<a name="line.531"></a> +<span class="sourceLineNo">532</span> // Start key is just the table name with delimiters<a name="line.532"></a> +<span class="sourceLineNo">533</span> byte[] startKey = getTableStartRowForMeta(tableName, QueryType.REGION);<a name="line.533"></a> +<span class="sourceLineNo">534</span> // Stop key appends the smallest possible char to the table name<a name="line.534"></a> +<span class="sourceLineNo">535</span> byte[] stopKey = getTableStopRowForMeta(tableName, QueryType.REGION);<a name="line.535"></a> +<span class="sourceLineNo">536</span><a name="line.536"></a> +<span class="sourceLineNo">537</span> Scan scan = getMetaScan(connection, -1);<a name="line.537"></a> +<span class="sourceLineNo">538</span> scan.setStartRow(startKey);<a name="line.538"></a> +<span class="sourceLineNo">539</span> scan.setStopRow(stopKey);<a name="line.539"></a> +<span class="sourceLineNo">540</span> return scan;<a name="line.540"></a> +<span class="sourceLineNo">541</span> }<a name="line.541"></a> +<span class="sourceLineNo">542</span><a name="line.542"></a> +<span class="sourceLineNo">543</span> private static Scan getMetaScan(Connection connection, int rowUpperLimit) {<a name="line.543"></a> +<span class="sourceLineNo">544</span> Scan scan = new Scan();<a name="line.544"></a> +<span class="sourceLineNo">545</span> int scannerCaching = connection.getConfiguration()<a name="line.545"></a> +<span class="sourceLineNo">546</span> .getInt(HConstants.HBASE_META_SCANNER_CACHING,<a name="line.546"></a> +<span class="sourceLineNo">547</span> HConstants.DEFAULT_HBASE_META_SCANNER_CACHING);<a name="line.547"></a> +<span class="sourceLineNo">548</span> if (connection.getConfiguration().getBoolean(HConstants.USE_META_REPLICAS,<a name="line.548"></a> +<span class="sourceLineNo">549</span> HConstants.DEFAULT_USE_META_REPLICAS)) {<a name="line.549"></a> +<span class="sourceLineNo">550</span> scan.setConsistency(Consistency.TIMELINE);<a name="line.550"></a> +<span class="sourceLineNo">551</span> }<a name="line.551"></a> +<span class="sourceLineNo">552</span> if (rowUpperLimit > 0) {<a name="line.552"></a> +<span class="sourceLineNo">553</span> scan.setLimit(rowUpperLimit);<a name="line.553"></a> +<span class="sourceLineNo">554</span> scan.setReadType(Scan.ReadType.PREAD);<a name="line.554"></a> +<span class="sourceLineNo">555</span> }<a name="line.555"></a> +<span class="sourceLineNo">556</span> scan.setCaching(scannerCaching);<a name="line.556"></a> +<span class="sourceLineNo">557</span> return scan;<a name="line.557"></a> +<span class="sourceLineNo">558</span> }<a name="line.558"></a> +<span class="sourceLineNo">559</span> /**<a name="line.559"></a> +<span class="sourceLineNo">560</span> * Do not use this method to get meta table regions, use methods in MetaTableLocator instead.<a name="line.560"></a> +<span class="sourceLineNo">561</span> * @param connection connection we're using<a name="line.561"></a> +<span class="sourceLineNo">562</span> * @param tableName table we're looking for<a name="line.562"></a> +<span class="sourceLineNo">563</span> * @return Return list of regioninfos and server.<a name="line.563"></a> +<span class="sourceLineNo">564</span> * @throws IOException<a name="line.564"></a> +<span class="sourceLineNo">565</span> */<a name="line.565"></a> +<span class="sourceLineNo">566</span> public static List<Pair<RegionInfo, ServerName>><a name="line.566"></a> +<span class="sourceLineNo">567</span> getTableRegionsAndLocations(Connection connection, TableName tableName)<a name="line.567"></a> +<span class="sourceLineNo">568</span> throws IOException {<a name="line.568"></a> +<span class="sourceLineNo">569</span> return getTableRegionsAndLocations(connection, tableName, true);<a name="line.569"></a> +<span class="sourceLineNo">570</span> }<a name="line.570"></a> +<span class="sourceLineNo">571</span><a name="line.571"></a> +<span class="sourceLineNo">572</span> /**<a name="line.572"></a> +<span class="sourceLineNo">573</span> * Do not use this method to get meta table regions, use methods in MetaTableLocator instead.<a name="line.573"></a> +<span class="sourceLineNo">574</span> * @param connection connection we're using<a name="line.574"></a> +<span class="sourceLineNo">575</span> * @param tableName table to work with, can be null for getting all regions<a name="line.575"></a> +<span class="sourceLineNo">576</span> * @param excludeOfflinedSplitParents don't return split parents<a name="line.576"></a> +<span class="sourceLineNo">577</span> * @return Return list of regioninfos and server addresses.<a name="line.577"></a> +<span class="sourceLineNo">578</span> * @throws IOException<a name="line.578"></a> +<span class="sourceLineNo">579</span> */<a name="line.579"></a> +<span class="sourceLineNo">580</span> public static List<Pair<RegionInfo, ServerName>> getTableRegionsAndLocations(<a name="line.580"></a> +<span class="sourceLineNo">581</span> Connection connection, @Nullable final TableName tableName,<a name="line.581"></a> +<span class="sourceLineNo">582</span> final boolean excludeOfflinedSplitParents) throws IOException {<a name="line.582"></a> +<span class="sourceLineNo">583</span> if (tableName != null && tableName.equals(TableName.META_TABLE_NAME)) {<a name="line.583"></a> +<span class="sourceLineNo">584</span> throw new IOException("This method can't be used to locate meta regions;"<a name="line.584"></a> +<span class="sourceLineNo">585</span> + " use MetaTableLocator instead");<a name="line.585"></a> +<span class="sourceLineNo">586</span> }<a name="line.586"></a> +<span class="sourceLineNo">587</span> // Make a version of CollectingVisitor that collects RegionInfo and ServerAddress<a name="line.587"></a> +<span class="sourceLineNo">588</span> CollectingVisitor<Pair<RegionInfo, ServerName>> visitor =<a name="line.588"></a> +<span class="sourceLineNo">589</span> new CollectingVisitor<Pair<RegionInfo, ServerName>>() {<a name="line.589"></a> +<span class="sourceLineNo">590</span> private RegionLocations current = null;<a name="line.590"></a> +<span class="sourceLineNo">591</span><a name="line.591"></a> +<span class="sourceLineNo">592</span> @Override<a name="line.592"></a> +<span class="sourceLineNo">593</span> public boolean visit(Result r) throws IOException {<a name="line.593"></a> +<span class="sourceLineNo">594</span> current = getRegionLocations(r);<a name="line.594"></a> +<span class="sourceLineNo">595</span> if (current == null || current.getRegionLocation().getRegion() == null) {<a name="line.595"></a> +<span class="sourceLineNo">596</span> LOG.warn("No serialized RegionInfo in " + r);<a name="line.596"></a> +<span class="sourceLineNo">597</span> return true;<a name="line.597"></a> +<span class="sourceLineNo">598</span> }<a name="line.598"></a> +<span class="sourceLineNo">599</span> RegionInfo hri = current.getRegionLocation().getRegion();<a name="line.599"></a> +<span class="sourceLineNo">600</span> if (excludeOfflinedSplitParents && hri.isSplitParent()) return true;<a name="line.600"></a> +<span class="sourceLineNo">601</span> // Else call super and add this Result to the collection.<a name="line.601"></a> +<span class="sourceLineNo">602</span> return super.visit(r);<a name="line.602"></a> +<span class="sourceLineNo">603</span> }<a name="line.603"></a> +<span class="sourceLineNo">604</span><a name="line.604"></a> +<span class="sourceLineNo">605</span> @Override<a name="line.605"></a> +<span class="sourceLineNo">606</span> void add(Result r) {<a name="line.606"></a> +<span class="sourceLineNo">607</span> if (current == null) {<a name="line.607"></a> +<span class="sourceLineNo">608</span> return;<a name="line.608"></a> +<span class="sourceLineNo">609</span> }<a name="line.609"></a> +<span class="sourceLineNo">610</span> for (HRegionLocation loc : current.getRegionLocations()) {<a name="line.610"></a> +<span class="sourceLineNo">611</span> if (loc != null) {<a name="line.611"></a> +<span class="sourceLineNo">612</span> this.results.add(new Pair<>(loc.getRegion(), loc.getServerName()));<a name="line.612"></a> +<span class="sourceLineNo">613</span> }<a name="line.613"></a> +<span class="sourceLineNo">614</span> }<a name="line.614"></a> +<span class="sourceLineNo">615</span> }<a name="line.615"></a> +<span class="sourceLineNo">616</span> };<a name="line.616"></a> +<span class="sourceLineNo">617</span> scanMeta(connection,<a name="line.617"></a> +<span class="sourceLineNo">618</span> getTableStartRowForMeta(tableName, QueryType.REGION),<a name="line.618"></a> +<span class="sourceLineNo">619</span> getTableStopRowForMeta(tableName, QueryType.REGION),<a name="line.619"></a> +<span class="sourceLineNo">620</span> QueryType.REGION, visitor);<a name="line.620"></a> +<span class="sourceLineNo">621</span> return visitor.getResults();<a name="line.621"></a> +<span class="sourceLineNo">622</span> }<a name="line.622"></a> +<span class="sourceLineNo">623</span><a name="line.623"></a> +<span class="sourceLineNo">624</span> /**<a name="line.624"></a> +<span class="sourceLineNo">625</span> * @param connection connection we're using<a name="line.625"></a> +<span class="sourceLineNo">626</span> * @param serverName server whose regions we're interested in<a name="line.626"></a> +<span class="sourceLineNo">627</span> * @return List of user regions installed on this server (does not include<a name="line.627"></a> +<span class="sourceLineNo">628</span> * catalog regions).<a name="line.628"></a> +<span class="sourceLineNo">629</span> * @throws IOException<a name="line.629"></a> +<span class="sourceLineNo">630</span> */<a name="line.630"></a> +<span class="sourceLineNo">631</span> public static NavigableMap<RegionInfo, Result><a name="line.631"></a> +<span class="sourceLineNo">632</span> getServerUserRegions(Connection connection, final ServerName serverName)<a name="line.632"></a> +<span class="sourceLineNo">633</span> throws IOException {<a name="line.633"></a> +<span class="sourceLineNo">634</span> final NavigableMap<RegionInfo, Result> hris = new TreeMap<>();<a name="line.634"></a> +<span class="sourceLineNo">635</span> // Fill the above hris map with entries from hbase:meta that have the passed<a name="line.635"></a> +<span class="sourceLineNo">636</span> // servername.<a name="line.636"></a> +<span class="sourceLineNo">637</span> CollectingVisitor<Result> v = new CollectingVisitor<Result>() {<a name="line.637"></a> +<span class="sourceLineNo">638</span> @Override<a name="line.638"></a> +<span class="sourceLineNo">639</span> void add(Result r) {<a name="line.639"></a> +<span class="sourceLineNo">640</span> if (r == null || r.isEmpty()) return;<a name="line.640"></a> +<span class="sourceLineNo">641</span> RegionLocations locations = getRegionLocations(r);<a name="line.641"></a> +<span class="sourceLineNo">642</span> if (locations == null) return;<a name="line.642"></a> +<span class="sourceLineNo">643</span> for (HRegionLocation loc : locations.getRegionLocations()) {<a name="line.643"></a> +<span class="sourceLineNo">644</span> if (loc != null) {<a name="line.644"></a> +<span class="sourceLineNo">645</span> if (loc.getServerName() != null && loc.getServerName().equals(serverName)) {<a name="line.645"></a> +<span class="sourceLineNo">646</span> hris.put(loc.getRegion(), r);<a name="line.646"></a> +<span class="sourceLineNo">647</span> }<a name="line.647"></a> +<span class="sourceLineNo">648</span> }<a name="line.648"></a> +<span class="sourceLineNo">649</span> }<a name="line.649"></a> +<span class="sourceLineNo">650</span> }<a name="line.650"></a> +<span class="sourceLineNo">651</span> };<a name="line.651"></a> +<span class="sourceLineNo">652</span> scanMeta(connection, null, null, QueryType.REGION, v);<a name="line.652"></a> +<span class="sourceLineNo">653</span> return hris;<a name="line.653"></a> +<span class="sourceLineNo">654</span> }<a name="line.654"></a> +<span class="sourceLineNo">655</span><a name="line.655"></a> +<span class="sourceLineNo">656</span> public static void fullScanMetaAndPrint(Connection connection)<a name="line.656"></a> +<span class="sourceLineNo">657</span> throws IOException {<a name="line.657"></a> +<span class="sourceLineNo">658</span> Visitor v = new Visitor() {<a name="line.658"></a> +<span class="sourceLineNo">659</span> @Override<a name="line.659"></a> +<span class="sourceLineNo">660</span> public boolean visit(Result r) throws IOException {<a name="line.660"></a> +<span class="sourceLineNo">661</span> if (r == null || r.isEmpty()) return true;<a name="line.661"></a> +<span class="sourceLineNo">662</span> LOG.info("fullScanMetaAndPrint.Current Meta Row: " + r);<a name="line.662"></a> +<span class="sourceLineNo">663</span> TableState state = getTableState(r);<a name="line.663"></a> +<span class="sourceLineNo">664</span> if (state != null) {<a name="line.664"></a> +<span class="sourceLineNo">665</span> LOG.info("Table State: " + state);<a name="line.665"></a> +<span class="sourceLineNo">666</span> } else {<a name="line.666"></a> +<span class="sourceLineNo">667</span> RegionLocations locations = getRegionLocations(r);<a name="line.667"></a> +<span class="sourceLineNo">668</span> if (locations == null) return true;<a name="line.668"></a> +<span class="sourceLineNo">669</span> for (HRegionLocation loc : locations.getRegionLocations()) {<a name="line.669"></a> +<span class="sourceLineNo">670</span> if (loc != null) {<a name="line.670"></a> +<span class="sourceLineNo">671</span> LOG.info("fullScanMetaAndPrint.HRI Print= " + loc.getRegion());<a name="line.671"></a> +<span class="sourceLineNo">672</span> }<a name="line.672"></a> +<span class="sourceLineNo">673</span> }<a name="line.673"></a> +<span class="sourceLineNo">674</span> }<a name="line.674"></a> +<span class="sourceLineNo">675</span> return true;<a name="line.675"></a> +<span class="sourceLineNo">676</span> }<a name="line.676"></a> +<span class="sourceLineNo">677</span> };<a name="line.677"></a> +<span class="sourceLineNo">678</span> scanMeta(connection, null, null, QueryType.ALL, v);<a name="line.678"></a> +<span class="sourceLineNo">679</span> }<a name="line.679"></a> +<span class="sourceLineNo">680</span><a name="line.680"></a> +<span class="sourceLineNo">681</span> public static void scanMetaForTableRegions(Connection connection,<a name="line.681"></a> +<span class="sourceLineNo">682</span> Visitor visitor, TableName tableName) throws IOException {<a name="line.682"></a> +<span class="sourceLineNo">683</span> scanMeta(connection, tableName, QueryType.REGION, Integer.MAX_VALUE, visitor);<a name="line.683"></a> +<span class="sourceLineNo">684</span> }<a name="line.684"></a> +<span class="sourceLineNo">685</span><a name="line.685"></a> +<span class="sourceLineNo">686</span> public static void scanMeta(Connection connection, TableName table,<a name="line.686"></a> +<span class="sourceLineNo">687</span> QueryType type, int maxRows, final Visitor visitor) throws IOException {<a name="line.687"></a> +<span class="sourceLineNo">688</span> scanMeta(connection, getTableStartRowForMeta(table, type), getTableStopRowForMeta(table, type),<a name="line.688"></a> +<span class="sourceLineNo">689</span> type, maxRows, visitor);<a name="line.689"></a> +<span class="sourceLineNo">690</span> }<a name="line.690"></a> +<span class="sourceLineNo">691</span><a name="line.691"></a> +<span class="sourceLineNo">692</span> public static void scanMeta(Connection connection,<a name="line.692"></a> +<span class="sourceLineNo">693</span> @Nullable final byte[] startRow, @Nullable final byte[] stopRow,<a name="line.693"></a> +<span class="sourceLineNo">694</span> QueryType type, final Visitor visitor) throws IOException {<a name="line.694"></a> +<span class="sourceLineNo">695</span> scanMeta(connection, startRow, stopRow, type, Integer.MAX_VALUE, visitor);<a name="line.695"></a> +<span class="sourceLineNo">696</span> }<a name="line.696"></a> +<span class="sourceLineNo">697</span><a name="line.697"></a> +<span class="sourceLineNo">698</span> /**<a name="line.698"></a> +<span class="sourceLineNo">699</span> * Performs a scan of META table for given table starting from<a name="line.699"></a> +<span class="sourceLineNo">700</span> * given row.<a name="line.700"></a> +<span class="sourceLineNo">701</span> *<a name="line.701"></a> +<span class="sourceLineNo">702</span> * @param connection connection we're using<a name="line.702"></a> +<span class="sourceLineNo">703</span> * @param visitor visitor to call<a name="line.703"></a> +<span class="sourceLineNo">704</span> * @param tableName table withing we scan<a name="line.704"></a> +<span class="sourceLineNo">705</span> * @param row start scan from this row<a name="line.705"></a> +<span class="sourceLineNo">706</span> * @param rowLimit max number of rows to return<a name="line.706"></a> +<span class="sourceLineNo">707</span> * @throws IOException<a name="line.707"></a> +<span class="sourceLineNo">708</span> */<a name="line.708"></a> +<span class="sourceLineNo">709</span> public static void scanMeta(Connection connection,<a name="line.709"></a> +<span class="sourceLineNo">710</span> final Visitor visitor, final TableName tableName,<a name="line.710"></a> +<span class="sourceLineNo">711</span> final byte[] row, final int rowLimit)<a name="line.711"></a> +<span class="sourceLineNo">712</span> throws IOException {<a name="line.712"></a> +<span class="sourceLineNo">713</span><a name="line.713"></a> +<span class="sourceLineNo">714</span> byte[] startRow = null;<a name="line.714"></a> +<span class="sourceLineNo">715</span> byte[] stopRow = null;<a name="line.715"></a> +<span class="sourceLineNo">716</span> if (tableName != null) {<a name="line.716"></a> +<span class="sourceLineNo">717</span> startRow =<a name="line.717"></a> +<span class="sourceLineNo">718</span> getTableStartRowForMeta(tableName, QueryType.REGION);<a name="line.718"></a> +<span class="sourceLineNo">719</span> if (row != null) {<a name="line.719"></a> +<span class="sourceLineNo">720</span> RegionInfo closestRi =<a name="line.720"></a> +<span class="sourceLineNo">721</span> getClosestRegionInfo(connection, tableName, row);<a name="line.721"></a> +<span class="sourceLineNo">722</span> startRow = RegionInfo<a name="line.722"></a> +<span class="sourceLineNo">723</span> .createRegionName(tableName, closestRi.getStartKey(), HConstants.ZEROES, false);<a name="line.723"></a> +<span class="sourceLineNo">724</span> }<a name="line.724"></a> +<span class="sourceLineNo">725</span> stopRow =<a name="line.725"></a> +<span class="sourceLineNo">726</span> getTableStopRowForMeta(tableName, QueryType.REGION);<a name="line.726"></a> +<span class="sourceLineNo">727</span> }<a name="line.727"></a> +<span class="sourceLineNo">728</span> scanMeta(connection, startRow, stopRow, QueryType.REGION, rowLimit, visitor);<a name="line.728"></a> +<span class="sourceLineNo">729</span> }<a name="line.729"></a> +<span class="sourceLineNo">730</span><a name="line.730"></a> +<span class="sourceLineNo">731</span><a name="line.731"></a> +<span class="sourceLineNo">732</span> /**<a name="line.732"></a> +<span class="sourceLineNo">733</span> * Performs a scan of META table.<a name="line.733"></a> +<span class="sourceLineNo">734</span> * @param connection connection we're using<a name="line.734"></a> +<span class="sourceLineNo">735</span> * @param startRow Where to start the scan. Pass null if want to begin scan<a name="line.735"></a> +<span class="sourceLineNo">736</span> * at first row.<a name="line.736"></a> +<span class="sourceLineNo">737</span> * @param stopRow Where to stop the scan. Pass null if want to scan all rows<a name="line.737"></a> +<span class="sourceLineNo">738</span> * from the start one<a name="line.738"></a> +<span class="sourceLineNo">739</span> * @param type scanned part of meta<a name="line.739"></a> +<span class="sourceLineNo">740</span> * @param maxRows maximum rows to return<a name="line.740"></a> +<span class="sourceLineNo">741</span> * @param visitor Visitor invoked against each row.<a name="line.741"></a> +<span class="sourceLineNo">742</span> * @throws IOException<a name="line.742"></a> +<span class="sourceLineNo">743</span> */<a name="line.743"></a> +<span class="sourceLineNo">744</span> public static void scanMeta(Connection connection, @Nullable final byte[] startRow,<a name="line.744"></a> +<span class="sourceLineNo">745</span> @Nullable final byte[] stopRow, QueryType type, int maxRows, final Visitor visitor)<a name="line.745"></a> +<span class="sourceLineNo">746</span> throws IOException {<a name="line.746"></a> +<span class="sourceLineNo">747</span> int rowUpperLimit = maxRows > 0 ? maxRows : Integer.MAX_VALUE;<a name="line.747"></a> +<span class="sourceLineNo">748</span> Scan scan = getMetaScan(connection, rowUpperLimit);<a name="line.748"></a> +<span class="sourceLineNo">749</span><a name="line.749"></a> +<span class="sourceLineNo">750</span> for (byte[] family : type.getFamilies()) {<a name="line.750"></a> +<span class="sourceLineNo">751</span> scan.addFamily(family);<a name="line.751"></a> +<span class="sourceLineNo">752</span> }<a name="line.752"></a> +<span class="sourceLineNo">753</span> if (startRow != null) {<a name="line.753"></a> +<span class="sourceLineNo">754</span> scan.withStartRow(startRow);<a name="line.754"></a> +<span class="sourceLineNo">755</span> }<a name="line.755"></a> +<span class="sourceLineNo">756</span> if (stopRow != null) {<a name="line.756"></a> +<span class="sourceLineNo">757</span> scan.withStopRow(stopRow);<a name="line.757"></a> +<span class="sourceLineNo">758</span> }<a name="line.758"></a> +<span class="sourceLineNo">759</span><a name="line.759"></a> +<span class="sourceLineNo">760</span> if (LOG.isTraceEnabled()) {<a name="line.760"></a> +<span class="sourceLineNo">761</span> LOG.trace("Scanning META"<a name="line.761"></a> +<span class="sourceLineNo">762</span> + " starting at row=" + Bytes.toStringBinary(startRow)<a name="line.762"></a> +<span class="sourceLineNo">763</span> + " stopping at row=" + Bytes.toStringBinary(stopRow)<a name="line.763"></a> +<span class="sourceLineNo">764</span> + " for max=" + rowUpperLimit<a name="line.764"></a> +<span class="sourceLineNo">765</span> + " with caching=" + scan.getCaching());<a name="line.765"></a> +<span class="sourceLineNo">766</span> }<a name="line.766"></a> +<span class="sourceLineNo">767</span><a name="line.767"></a> +<span class="sourceLineNo">768</span> int currentRow = 0;<a name="line.768"></a> +<span class="sourceLineNo">769</span> try (Table metaTable = getMetaHTable(connection)) {<a name="line.769"></a> +<span class="sourceLineNo">770</span> try (ResultScanner scanner = metaTable.getScanner(scan)) {<a name="line.770"></a> +<span class="sourceLineNo">771</span> Result data;<a name="line.771"></a> +<span class="sourceLineNo">772</span> while ((data = scanner.next()) != null) {<a name="line.772"></a> +<span class="sourceLineNo">773</span> if (data.isEmpty()) continue;<a name="line.773"></a> +<span class="sourceLineNo">774</span> // Break if visit returns false.<a name="line.774"></a> +<span class="sourceLineNo">775</span> if (!visitor.visit(data)) break;<a name="line.775"></a> +<span class="sourceLineNo">776</span> if (++currentRow >= rowUpperLimit) break;<a name="line.776"></a> +<span class="sourceLineNo">777</span> }<a name="line.777"></a> +<span class="sourceLineNo">778</span> }<a name="line.778"></a> +<span class="sourceLineNo">779</span> }<a name="line.779"></a> +<span class="sourceLineNo">780</span> if (visitor != null && visitor instanceof Closeable) {<a name="line.780"></a> +<span class="sourceLineNo">781</span> try {<a name="line.781"></a> +<span class="sourceLineNo">782</span> ((Closeable) visitor).close();<a name="line.782"></a> +<span class="sourceLineNo">783</span> } catch (Throwable t) {<a name="line.783"></a> +<span class="sourceLineNo">784</span> ExceptionUtil.rethrowIfInterrupt(t);<a name="line.784"></a> +<span class="sourceLineNo">785</span> LOG.debug("Got exception in closing the meta scanner visitor", t);<a name="line.785"></a> +<span class="sourceLineNo">786</span> }<a name="line.786"></a> +<span class="sourceLineNo">787</span> }<a name="line.787"></a> +<span class="sourceLineNo">788</span> }<a name="line.788"></a> +<span class="sourceLineNo">789</span><a name="line.789"></a> +<span class="sourceLineNo">790</span> /**<a name="line.790"></a> +<span class="sourceLineNo">791</span> * @return Get closest metatable region row to passed <code>row</code><a name="line.791"></a> +<span class="sourceLineNo">792</span> */<a name="line.792"></a> +<span class="sourceLineNo">793</span> @NonNull<a name="line.793"></a> +<span class="sourceLineNo">794</span> private static RegionInfo getClosestRegionInfo(Connection connection,<a name="line.794"></a> +<span class="sourceLineNo">795</span> @NonNull final TableName tableName, @NonNull final byte[] row) throws IOException {<a name="line.795"></a> +<span class="sourceLineNo">796</span> byte[] searchRow = RegionInfo.createRegionName(tableName, row, HConstants.NINES, false);<a name="line.796"></a> +<span class="sourceLineNo">797</span> Scan scan = getMetaScan(connection, 1);<a name="line.797"></a> +<span class="sourceLineNo">798</span> scan.setReversed(true);<a name="line.798"></a> +<span class="sourceLineNo">799</span> scan.withStartRow(searchRow);<a name="line.799"></a> +<span class="sourceLineNo">800</span> try (ResultScanner resultScanner = getMetaHTable(connection).getScanner(scan)) {<a name="line.800"></a> +<span class="sourceLineNo">801</span> Result result = resultScanner.next();<a name="line.801"></a> +<span class="sourceLineNo">802</span> if (result == null) {<a name="line.802"></a> +<span class="sourceLineNo">803</span> throw new TableNotFoundException("Cannot find row in META " +<a name="line.803"></a> +<span class="sourceLineNo">804</span> " for table: " + tableName + ", row=" + Bytes.toStringBinary(row));<a name="line.804"></a> +<span class="sourceLineNo">805</span> }<a name="line.805"></a> +<span class="sourceLineNo">806</span> RegionInfo regionInfo = getRegionInfo(result);<a name="line.806"></a> +<span class="sourceLineNo">807</span> if (regionInfo == null) {<a name="line.807"></a> +<span class="sourceLineNo">808</span> throw new IOException("RegionInfo was null or empty in Meta for " +<a name="line.808"></a> +<span class="sourceLineNo">809</span> tableName + ", row=" + Bytes.toStringBinary(row));<a name="line.809"></a> +<span class="sourceLineNo">810</span> }<a name="line.810"></a> +<span class="sourceLineNo">811</span> return regionInfo;<a name="line.811"></a> +<span class="sourceLineNo">812</span> }<a name="line.812"></a> +<span class="sourceLineNo">813</span> }<a name="line.813"></a> +<span class="sourceLineNo">814</span><a name="line.814"></a> +<span class="sourceLineNo">815</span> /**<a name="line.815"></a> +<span class="sourceLineNo">816</span> * Returns the column family used for meta columns.<a name="line.816"></a> +<span class="sourceLineNo">817</span> * @return HConstants.CATALOG_FAMILY.<a name="line.817"></a> +<span class="sourceLineNo">818</span> */<a name="line.818"></a> +<span class="sourceLineNo">819</span> private static byte[] getCatalogFamily() {<a name="line.819"></a> +<span class="sourceLineNo">820</span> return HConstants.CATALOG_FAMILY;<a name="line.820"></a> +<span class="sourceLineNo">821</span> }<a name="line.821"></a> +<span class="sourceLineNo">822</span><a name="line.822"></a> +<span class="sourceLineNo">823</span> /**<a name="line.823"></a> +<span class="sourceLineNo">824</span> * Returns the column family used for table columns.<a name="line.824"></a> +<span class="sourceLineNo">825</span> * @return HConstants.TABLE_FAMILY.<a name="line.825"></a> +<span class="sourceLineNo">826</span> */<a name="line.826"></a> +<span class="sourceLineNo">827</span> private static byte[] getTableFamily() {<a name="line.827"></a> +<span class="sourceLineNo">828</span> return HConstants.TABLE_FAMILY;<a name="line.828"></a> +<span class="sourceLineNo">829</span> }<a name="line.829"></a> +<span class="sourceLineNo">830</span><a name="line.830"></a> +<span class="sourceLineNo">831</span> /**<a name="line.831"></a> +<span class="sourceLineNo">832</span> * Returns the column qualifier for serialized region info<a name="line.832"></a> +<span class="sourceLineNo">833</span> * @return HConstants.REGIONINFO_QUALIFIER<a name="line.833"></a> +<span class="sourceLineNo">834</span> */<a name="line.834"></a> +<span class="sourceLineNo">835</span> private static byte[] getRegionInfoColumn() {<a name="line.835"></a> +<span class="sourceLineNo">836</span> return HConstants.REGIONINFO_QUALIFIER;<a name="line.836"></a> +<span class="sourceLineNo">837</span> }<a name="line.837"></a> +<span class="sourceLineNo">838</span><a name="line.838"></a> +<span class="sourceLineNo">839</span> /**<a name="line.839"></a> +<span class="sourceLineNo">840</span> * Returns the column qualifier for serialized table state<a name="line.840"></a> +<span class="sourceLineNo">841</span> * @return HConstants.TABLE_STATE_QUALIFIER<a name="line.841"></a> +<span class="sourceLineNo">842</span> */<a name="line.842"></a> +<span class="sourceLineNo">843</span> private static byte[] getTableStateColumn() {<a name="line.843"></a> +<span class="sourceLineNo">844</span> return HConstants.TABLE_STATE_QUALIFIER;<a name="line.844"></a> +<span class="sourceLineNo">845</span> }<a name="line.845"></a> +<span class="sourceLineNo">846</span><a name="line.846"></a> +<span class="sourceLineNo">847</span> /**<a name="line.847"></a> +<span class="sourceLineNo">848</span> * Returns the column qualifier for serialized region state<a name="line.848"></a> +<span class="sourceLineNo">849</span> * @return HConstants.STATE_QUALIFIER<a name="line.849"></a> +<span class="sourceLineNo">850</span> */<a name="line.850"></a> +<span class="sourceLineNo">851</span> private static byte[] getRegionStateColumn() {<a name="line.851"></a> +<span class="sourceLineNo">852</span> return HConstants.STATE_QUALIFIER;<a name="line.852"></a> +<span class="sourceLineNo">853</span> }<a name="line.853"></a> +<span class="sourceLineNo">854</span><a name="line.854"></a> +<span class="sourceLineNo">855</span> /**<a name="line.855"></a> +<span class="sourceLineNo">856</span> * Returns the column qualifier for server column for replicaId<a name="line.856"></a> +<span class="sourceLineNo">857</span> * @param replicaId the replicaId of the region<a name="line.857"></a> +<span class="sourceLineNo">858</span> * @return a byte[] for server column qualifier<a name="line.858"></a> +<span class="sourceLineNo">859</span> */<a name="line.859"></a> +<span class="sourceLineNo">860</span> @VisibleForTesting<a name="line.860"></a> +<span class="sourceLineNo">861</span> public static byte[] getServerColumn(int replicaId) {<a name="line.861"></a> +<span class="sourceLineNo">862</span> return replicaId == 0<a name="line.862"></a> +<span class="sourceLineNo">863</span> ? HConstants.SERVER_QUALIFIER<a name="line.863"></a> +<span class="sourceLineNo">864</span> : Bytes.toBytes(HConstants.SERVER_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.864"></a> +<span class="sourceLineNo">865</span> + String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.865"></a> +<span class="sourceLineNo">866</span> }<a name="line.866"></a> +<span class="sourceLineNo">867</span><a name="line.867"></a> +<span class="sourceLineNo">868</span> /**<a name="line.868"></a> +<span class="sourceLineNo">869</span> * Returns the column qualifier for server start code column for replicaId<a name="line.869"></a> +<span class="sourceLineNo">870</span> * @param replicaId the replicaId of the region<a name="line.870"></a> +<span class="sourceLineNo">871</span> * @return a byte[] for server start code column qualifier<a name="line.871"></a> +<span class="sourceLineNo">872</span> */<a name="line.872"></a> +<span class="sourceLineNo">873</span> @VisibleForTesting<a name="line.873"></a> +<span class="sourceLineNo">874</span> public static byte[] getStartCodeColumn(int replicaId) {<a name="line.874"></a> +<span class="sourceLineNo">875</span> return replicaId == 0<a name="line.875"></a> +<span class="sourceLineNo">876</span> ? HConstants.STARTCODE_QUALIFIER<a name="line.876"></a> +<span class="sourceLineNo">877</span> : Bytes.toBytes(HConstants.STARTCODE_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.877"></a> +<span class="sourceLineNo">878</span> + String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.878"></a> +<span class="sourceLineNo">879</span> }<a name="line.879"></a> +<span class="sourceLineNo">880</span><a name="line.880"></a> +<span class="sourceLineNo">881</span> /**<a name="line.881"></a> +<span class="sourceLineNo">882</span> * Returns the column qualifier for seqNum column for replicaId<a name="line.882"></a> +<span class="sourceLineNo">883</span> * @param replicaId the replicaId of the region<a name="line.883"></a> +<span class="sourceLineNo">884</span> * @return a byte[] for seqNum column qualifier<a name="line.884"></a> +<span class="sou
<TRUNCATED>
