http://git-wip-us.apache.org/repos/asf/hbase-site/blob/b707139a/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.CloseableVisitor.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.CloseableVisitor.html b/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.CloseableVisitor.html index 6007f27..4ce6735 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.CloseableVisitor.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/MetaTableAccessor.CloseableVisitor.html @@ -65,716 +65,716 @@ <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.client.Table;<a name="line.57"></a> <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.58"></a> <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.59"></a> -<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.ipc.CoprocessorRpcChannel;<a name="line.60"></a> -<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.61"></a> -<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.62"></a> -<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.63"></a> -<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;<a name="line.64"></a> -<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier;<a name="line.65"></a> -<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier.RegionSpecifierType;<a name="line.66"></a> -<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos;<a name="line.67"></a> -<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos.MutateRowsRequest;<a name="line.68"></a> -<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos.MutateRowsResponse;<a name="line.69"></a> -<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.70"></a> -<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.71"></a> -<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.util.ExceptionUtil;<a name="line.72"></a> -<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.73"></a> -<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.util.PairOfSameType;<a name="line.74"></a> -<span class="sourceLineNo">075</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.75"></a> -<span class="sourceLineNo">076</span>import org.slf4j.Logger;<a name="line.76"></a> -<span class="sourceLineNo">077</span>import org.slf4j.LoggerFactory;<a name="line.77"></a> -<span class="sourceLineNo">078</span><a name="line.78"></a> -<span class="sourceLineNo">079</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.79"></a> +<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.filter.Filter;<a name="line.60"></a> +<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.filter.FirstKeyOnlyFilter;<a name="line.61"></a> +<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.ipc.CoprocessorRpcChannel;<a name="line.62"></a> +<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.63"></a> +<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.64"></a> +<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.65"></a> +<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;<a name="line.66"></a> +<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier;<a name="line.67"></a> +<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier.RegionSpecifierType;<a name="line.68"></a> +<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos;<a name="line.69"></a> +<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos.MutateRowsRequest;<a name="line.70"></a> +<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos.MutateRowsResponse;<a name="line.71"></a> +<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.72"></a> +<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.73"></a> +<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.util.ExceptionUtil;<a name="line.74"></a> +<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.75"></a> +<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.util.PairOfSameType;<a name="line.76"></a> +<span class="sourceLineNo">077</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.77"></a> +<span class="sourceLineNo">078</span>import org.slf4j.Logger;<a name="line.78"></a> +<span class="sourceLineNo">079</span>import org.slf4j.LoggerFactory;<a name="line.79"></a> <span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span>/**<a name="line.81"></a> -<span class="sourceLineNo">082</span> * <p><a name="line.82"></a> -<span class="sourceLineNo">083</span> * Read/write operations on region and assignment information store in <code>hbase:meta</code>.<a name="line.83"></a> -<span class="sourceLineNo">084</span> * </p><a name="line.84"></a> -<span class="sourceLineNo">085</span> * <p><a name="line.85"></a> -<span class="sourceLineNo">086</span> * Some of the methods of this class take ZooKeeperWatcher as a param. The only reason for this is<a name="line.86"></a> -<span class="sourceLineNo">087</span> * because when used on client-side (like from HBaseAdmin), we want to use short-living connection<a name="line.87"></a> -<span class="sourceLineNo">088</span> * (opened before each operation, closed right after), while when used on HM or HRS (like in<a name="line.88"></a> -<span class="sourceLineNo">089</span> * AssignmentManager) we want permanent connection.<a name="line.89"></a> -<span class="sourceLineNo">090</span> * </p><a name="line.90"></a> -<span class="sourceLineNo">091</span> * <p><a name="line.91"></a> -<span class="sourceLineNo">092</span> * HBASE-10070 adds a replicaId to HRI, meaning more than one HRI can be defined for the same table<a name="line.92"></a> -<span class="sourceLineNo">093</span> * range (table, startKey, endKey). For every range, there will be at least one HRI defined which is<a name="line.93"></a> -<span class="sourceLineNo">094</span> * called default replica.<a name="line.94"></a> -<span class="sourceLineNo">095</span> * </p><a name="line.95"></a> -<span class="sourceLineNo">096</span> * <p><a name="line.96"></a> -<span class="sourceLineNo">097</span> * Meta layout (as of 0.98 + HBASE-10070) is like:<a name="line.97"></a> -<span class="sourceLineNo">098</span> *<a name="line.98"></a> -<span class="sourceLineNo">099</span> * <pre><a name="line.99"></a> -<span class="sourceLineNo">100</span> * For each table there is single row in column family 'table' formatted:<a name="line.100"></a> -<span class="sourceLineNo">101</span> * &lt;tableName&gt; including namespace and columns are:<a name="line.101"></a> -<span class="sourceLineNo">102</span> * table: state => contains table state<a name="line.102"></a> -<span class="sourceLineNo">103</span> *<a name="line.103"></a> -<span class="sourceLineNo">104</span> * For each table range, there is a single row, formatted like:<a name="line.104"></a> -<span class="sourceLineNo">105</span> * &lt;tableName&gt;,&lt;startKey&gt;,&lt;regionId&gt;,&lt;encodedRegionName&gt;.<a name="line.105"></a> -<span class="sourceLineNo">106</span> * This row corresponds to the regionName of the default region replica.<a name="line.106"></a> -<span class="sourceLineNo">107</span> * Columns are:<a name="line.107"></a> -<span class="sourceLineNo">108</span> * info:regioninfo => contains serialized HRI for the default region replica<a name="line.108"></a> -<span class="sourceLineNo">109</span> * info:server => contains hostname:port (in string form) for the server hosting<a name="line.109"></a> -<span class="sourceLineNo">110</span> * the default regionInfo replica<a name="line.110"></a> -<span class="sourceLineNo">111</span> * info:server_&lt;replicaId&gt => contains hostname:port (in string form) for the server hosting<a name="line.111"></a> -<span class="sourceLineNo">112</span> * the regionInfo replica with replicaId<a name="line.112"></a> -<span class="sourceLineNo">113</span> * info:serverstartcode => contains server start code (in binary long form) for the server<a name="line.113"></a> -<span class="sourceLineNo">114</span> * hosting the default regionInfo replica<a name="line.114"></a> -<span class="sourceLineNo">115</span> * info:serverstartcode_&lt;replicaId&gt => contains server start code (in binary long form) for<a name="line.115"></a> -<span class="sourceLineNo">116</span> * the server hosting the regionInfo replica with<a name="line.116"></a> -<span class="sourceLineNo">117</span> * replicaId<a name="line.117"></a> -<span class="sourceLineNo">118</span> * info:seqnumDuringOpen => contains seqNum (in binary long form) for the region at the time<a name="line.118"></a> -<span class="sourceLineNo">119</span> * the server opened the region with default replicaId<a name="line.119"></a> -<span class="sourceLineNo">120</span> * info:seqnumDuringOpen_&lt;replicaId&gt => contains seqNum (in binary long form) for the region<a name="line.120"></a> -<span class="sourceLineNo">121</span> * at the time the server opened the region with<a name="line.121"></a> -<span class="sourceLineNo">122</span> * replicaId<a name="line.122"></a> -<span class="sourceLineNo">123</span> * info:splitA => contains a serialized HRI for the first daughter region if the<a name="line.123"></a> -<span class="sourceLineNo">124</span> * region is split<a name="line.124"></a> -<span class="sourceLineNo">125</span> * info:splitB => contains a serialized HRI for the second daughter region if the<a name="line.125"></a> +<span class="sourceLineNo">081</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span>/**<a name="line.83"></a> +<span class="sourceLineNo">084</span> * <p><a name="line.84"></a> +<span class="sourceLineNo">085</span> * Read/write operations on region and assignment information store in <code>hbase:meta</code>.<a name="line.85"></a> +<span class="sourceLineNo">086</span> * </p><a name="line.86"></a> +<span class="sourceLineNo">087</span> * <p><a name="line.87"></a> +<span class="sourceLineNo">088</span> * Some of the methods of this class take ZooKeeperWatcher as a param. 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class="sourceLineNo">106</span> * For each table range, there is a single row, formatted like:<a name="line.106"></a> +<span class="sourceLineNo">107</span> * &lt;tableName&gt;,&lt;startKey&gt;,&lt;regionId&gt;,&lt;encodedRegionName&gt;.<a name="line.107"></a> +<span class="sourceLineNo">108</span> * This row corresponds to the regionName of the default region replica.<a name="line.108"></a> +<span class="sourceLineNo">109</span> * Columns are:<a name="line.109"></a> +<span class="sourceLineNo">110</span> * info:regioninfo => contains serialized HRI for the default region replica<a name="line.110"></a> +<span class="sourceLineNo">111</span> * info:server => contains hostname:port (in string form) for the server hosting<a name="line.111"></a> +<span class="sourceLineNo">112</span> * the default regionInfo replica<a name="line.112"></a> +<span class="sourceLineNo">113</span> * info:server_&lt;replicaId&gt => contains hostname:port (in string form) for the server hosting<a 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class="sourceLineNo">122</span> * info:seqnumDuringOpen_&lt;replicaId&gt => contains seqNum (in binary long form) for the region<a name="line.122"></a> +<span class="sourceLineNo">123</span> * at the time the server opened the region with<a name="line.123"></a> +<span class="sourceLineNo">124</span> * replicaId<a name="line.124"></a> +<span class="sourceLineNo">125</span> * info:splitA => contains a serialized HRI for the first daughter region if the<a name="line.125"></a> <span class="sourceLineNo">126</span> * region is split<a name="line.126"></a> -<span class="sourceLineNo">127</span> * info:mergeA => contains a serialized HRI for the first parent region if the<a name="line.127"></a> -<span class="sourceLineNo">128</span> * region is the result of a merge<a name="line.128"></a> -<span class="sourceLineNo">129</span> * info:mergeB => contains a serialized HRI for the second parent region if the<a name="line.129"></a> +<span class="sourceLineNo">127</span> * info:splitB => contains a serialized HRI for the second daughter region if the<a name="line.127"></a> +<span class="sourceLineNo">128</span> * region is split<a name="line.128"></a> +<span class="sourceLineNo">129</span> * info:mergeA => contains a serialized HRI for the first parent region if the<a name="line.129"></a> <span class="sourceLineNo">130</span> * region is the result of a merge<a name="line.130"></a> -<span class="sourceLineNo">131</span> * </pre><a name="line.131"></a> -<span class="sourceLineNo">132</span> * </p><a name="line.132"></a> -<span class="sourceLineNo">133</span> * <p><a name="line.133"></a> -<span class="sourceLineNo">134</span> * The actual layout of meta should be encapsulated inside MetaTableAccessor methods, and should not<a name="line.134"></a> -<span class="sourceLineNo">135</span> * leak out of it (through Result objects, etc)<a name="line.135"></a> -<span class="sourceLineNo">136</span> * </p><a name="line.136"></a> -<span class="sourceLineNo">137</span> */<a name="line.137"></a> -<span class="sourceLineNo">138</span>@InterfaceAudience.Private<a name="line.138"></a> -<span class="sourceLineNo">139</span>public class MetaTableAccessor {<a name="line.139"></a> -<span class="sourceLineNo">140</span><a name="line.140"></a> -<span class="sourceLineNo">141</span> private static final Logger LOG = LoggerFactory.getLogger(MetaTableAccessor.class);<a name="line.141"></a> -<span class="sourceLineNo">142</span> private static final Logger METALOG = LoggerFactory.getLogger("org.apache.hadoop.hbase.META");<a name="line.142"></a> -<span class="sourceLineNo">143</span><a name="line.143"></a> -<span class="sourceLineNo">144</span> private static final byte[] META_REGION_PREFIX;<a name="line.144"></a> -<span class="sourceLineNo">145</span> static {<a name="line.145"></a> -<span class="sourceLineNo">146</span> // Copy the prefix from FIRST_META_REGIONINFO into META_REGION_PREFIX.<a name="line.146"></a> -<span class="sourceLineNo">147</span> // FIRST_META_REGIONINFO == 'hbase:meta,,1'. META_REGION_PREFIX == 'hbase:meta,'<a name="line.147"></a> -<span class="sourceLineNo">148</span> int len = RegionInfoBuilder.FIRST_META_REGIONINFO.getRegionName().length - 2;<a name="line.148"></a> -<span class="sourceLineNo">149</span> META_REGION_PREFIX = new byte [len];<a name="line.149"></a> -<span class="sourceLineNo">150</span> System.arraycopy(RegionInfoBuilder.FIRST_META_REGIONINFO.getRegionName(), 0,<a name="line.150"></a> -<span class="sourceLineNo">151</span> META_REGION_PREFIX, 0, len);<a name="line.151"></a> -<span class="sourceLineNo">152</span> }<a name="line.152"></a> -<span class="sourceLineNo">153</span><a name="line.153"></a> -<span class="sourceLineNo">154</span> @VisibleForTesting<a name="line.154"></a> -<span class="sourceLineNo">155</span> public static final byte[] REPLICATION_PARENT_QUALIFIER = Bytes.toBytes("parent");<a name="line.155"></a> -<span class="sourceLineNo">156</span><a name="line.156"></a> -<span class="sourceLineNo">157</span> private static final byte ESCAPE_BYTE = (byte) 0xFF;<a name="line.157"></a> +<span class="sourceLineNo">131</span> * info:mergeB => contains a serialized HRI for the second parent region if the<a name="line.131"></a> +<span class="sourceLineNo">132</span> * region is the result of a merge<a name="line.132"></a> +<span class="sourceLineNo">133</span> * </pre><a name="line.133"></a> +<span class="sourceLineNo">134</span> * </p><a name="line.134"></a> +<span class="sourceLineNo">135</span> * <p><a name="line.135"></a> +<span class="sourceLineNo">136</span> * The actual layout of meta should be encapsulated inside MetaTableAccessor methods, and should not<a name="line.136"></a> +<span class="sourceLineNo">137</span> * leak out of it (through Result objects, etc)<a name="line.137"></a> +<span class="sourceLineNo">138</span> * </p><a name="line.138"></a> +<span class="sourceLineNo">139</span> */<a name="line.139"></a> +<span class="sourceLineNo">140</span>@InterfaceAudience.Private<a name="line.140"></a> +<span class="sourceLineNo">141</span>public class MetaTableAccessor {<a name="line.141"></a> +<span class="sourceLineNo">142</span><a name="line.142"></a> +<span class="sourceLineNo">143</span> private static final Logger LOG = LoggerFactory.getLogger(MetaTableAccessor.class);<a name="line.143"></a> +<span class="sourceLineNo">144</span> private static final Logger METALOG = LoggerFactory.getLogger("org.apache.hadoop.hbase.META");<a name="line.144"></a> +<span class="sourceLineNo">145</span><a name="line.145"></a> +<span class="sourceLineNo">146</span> private static final byte[] META_REGION_PREFIX;<a name="line.146"></a> +<span class="sourceLineNo">147</span> static {<a name="line.147"></a> +<span class="sourceLineNo">148</span> // Copy the prefix from FIRST_META_REGIONINFO into META_REGION_PREFIX.<a name="line.148"></a> +<span class="sourceLineNo">149</span> // FIRST_META_REGIONINFO == 'hbase:meta,,1'. META_REGION_PREFIX == 'hbase:meta,'<a name="line.149"></a> +<span class="sourceLineNo">150</span> int len = RegionInfoBuilder.FIRST_META_REGIONINFO.getRegionName().length - 2;<a name="line.150"></a> +<span class="sourceLineNo">151</span> META_REGION_PREFIX = new byte [len];<a name="line.151"></a> +<span class="sourceLineNo">152</span> System.arraycopy(RegionInfoBuilder.FIRST_META_REGIONINFO.getRegionName(), 0,<a name="line.152"></a> +<span class="sourceLineNo">153</span> META_REGION_PREFIX, 0, len);<a name="line.153"></a> +<span class="sourceLineNo">154</span> }<a name="line.154"></a> +<span class="sourceLineNo">155</span><a name="line.155"></a> +<span class="sourceLineNo">156</span> @VisibleForTesting<a name="line.156"></a> +<span class="sourceLineNo">157</span> public static final byte[] REPLICATION_PARENT_QUALIFIER = Bytes.toBytes("parent");<a name="line.157"></a> <span class="sourceLineNo">158</span><a name="line.158"></a> -<span class="sourceLineNo">159</span> private static final byte SEPARATED_BYTE = 0x00;<a name="line.159"></a> +<span class="sourceLineNo">159</span> private static final byte ESCAPE_BYTE = (byte) 0xFF;<a name="line.159"></a> <span class="sourceLineNo">160</span><a name="line.160"></a> -<span class="sourceLineNo">161</span> /**<a name="line.161"></a> -<span class="sourceLineNo">162</span> * Lists all of the table regions currently in META.<a name="line.162"></a> -<span class="sourceLineNo">163</span> * Deprecated, keep there until some test use this.<a name="line.163"></a> -<span class="sourceLineNo">164</span> * @param connection what we will use<a name="line.164"></a> -<span class="sourceLineNo">165</span> * @param tableName table to list<a name="line.165"></a> -<span class="sourceLineNo">166</span> * @return Map of all user-space regions to servers<a name="line.166"></a> -<span class="sourceLineNo">167</span> * @deprecated use {@link #getTableRegionsAndLocations}, region can have multiple locations<a name="line.167"></a> -<span class="sourceLineNo">168</span> */<a name="line.168"></a> -<span class="sourceLineNo">169</span> @Deprecated<a name="line.169"></a> -<span class="sourceLineNo">170</span> public static NavigableMap<RegionInfo, ServerName> allTableRegions(<a name="line.170"></a> -<span class="sourceLineNo">171</span> Connection connection, final TableName tableName) throws IOException {<a name="line.171"></a> -<span class="sourceLineNo">172</span> final NavigableMap<RegionInfo, ServerName> regions = new TreeMap<>();<a name="line.172"></a> -<span class="sourceLineNo">173</span> Visitor visitor = new TableVisitorBase(tableName) {<a name="line.173"></a> -<span class="sourceLineNo">174</span> @Override<a name="line.174"></a> -<span class="sourceLineNo">175</span> public boolean visitInternal(Result result) throws IOException {<a name="line.175"></a> -<span class="sourceLineNo">176</span> RegionLocations locations = getRegionLocations(result);<a name="line.176"></a> -<span class="sourceLineNo">177</span> if (locations == null) return true;<a name="line.177"></a> -<span class="sourceLineNo">178</span> for (HRegionLocation loc : locations.getRegionLocations()) {<a name="line.178"></a> -<span class="sourceLineNo">179</span> if (loc != null) {<a name="line.179"></a> -<span class="sourceLineNo">180</span> RegionInfo regionInfo = loc.getRegionInfo();<a name="line.180"></a> -<span class="sourceLineNo">181</span> regions.put(regionInfo, loc.getServerName());<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> return true;<a name="line.184"></a> -<span class="sourceLineNo">185</span> }<a name="line.185"></a> -<span class="sourceLineNo">186</span> };<a name="line.186"></a> -<span class="sourceLineNo">187</span> scanMetaForTableRegions(connection, visitor, tableName);<a name="line.187"></a> -<span class="sourceLineNo">188</span> return regions;<a name="line.188"></a> -<span class="sourceLineNo">189</span> }<a name="line.189"></a> -<span class="sourceLineNo">190</span><a name="line.190"></a> -<span class="sourceLineNo">191</span> @InterfaceAudience.Private<a name="line.191"></a> -<span class="sourceLineNo">192</span> public enum QueryType {<a name="line.192"></a> -<span class="sourceLineNo">193</span> ALL(HConstants.TABLE_FAMILY, HConstants.CATALOG_FAMILY),<a name="line.193"></a> -<span class="sourceLineNo">194</span> REGION(HConstants.CATALOG_FAMILY),<a name="line.194"></a> -<span class="sourceLineNo">195</span> TABLE(HConstants.TABLE_FAMILY),<a name="line.195"></a> -<span class="sourceLineNo">196</span> REPLICATION(HConstants.REPLICATION_BARRIER_FAMILY);<a name="line.196"></a> -<span class="sourceLineNo">197</span><a name="line.197"></a> -<span class="sourceLineNo">198</span> private final byte[][] families;<a name="line.198"></a> +<span class="sourceLineNo">161</span> private static final byte SEPARATED_BYTE = 0x00;<a name="line.161"></a> +<span class="sourceLineNo">162</span><a name="line.162"></a> +<span class="sourceLineNo">163</span> /**<a name="line.163"></a> +<span class="sourceLineNo">164</span> * Lists all of the table regions currently in META.<a name="line.164"></a> +<span class="sourceLineNo">165</span> * Deprecated, keep there until some test use this.<a name="line.165"></a> +<span class="sourceLineNo">166</span> * @param connection what we will use<a name="line.166"></a> +<span class="sourceLineNo">167</span> * @param tableName table to list<a name="line.167"></a> +<span class="sourceLineNo">168</span> * @return Map of all user-space regions to servers<a name="line.168"></a> +<span class="sourceLineNo">169</span> * @deprecated use {@link #getTableRegionsAndLocations}, region can have multiple locations<a name="line.169"></a> +<span class="sourceLineNo">170</span> */<a name="line.170"></a> +<span class="sourceLineNo">171</span> @Deprecated<a name="line.171"></a> +<span class="sourceLineNo">172</span> public static NavigableMap<RegionInfo, ServerName> allTableRegions(<a name="line.172"></a> +<span class="sourceLineNo">173</span> Connection connection, final TableName tableName) throws IOException {<a name="line.173"></a> +<span class="sourceLineNo">174</span> final NavigableMap<RegionInfo, ServerName> regions = new TreeMap<>();<a name="line.174"></a> +<span class="sourceLineNo">175</span> Visitor visitor = new TableVisitorBase(tableName) {<a name="line.175"></a> +<span class="sourceLineNo">176</span> @Override<a name="line.176"></a> +<span class="sourceLineNo">177</span> public boolean visitInternal(Result result) throws IOException {<a name="line.177"></a> +<span class="sourceLineNo">178</span> RegionLocations locations = getRegionLocations(result);<a name="line.178"></a> +<span class="sourceLineNo">179</span> if (locations == null) return true;<a name="line.179"></a> +<span class="sourceLineNo">180</span> for (HRegionLocation loc : locations.getRegionLocations()) {<a name="line.180"></a> +<span class="sourceLineNo">181</span> if (loc != null) {<a name="line.181"></a> +<span class="sourceLineNo">182</span> RegionInfo regionInfo = loc.getRegionInfo();<a name="line.182"></a> +<span class="sourceLineNo">183</span> regions.put(regionInfo, loc.getServerName());<a name="line.183"></a> +<span class="sourceLineNo">184</span> }<a name="line.184"></a> +<span class="sourceLineNo">185</span> }<a name="line.185"></a> +<span class="sourceLineNo">186</span> return true;<a name="line.186"></a> +<span class="sourceLineNo">187</span> }<a name="line.187"></a> +<span class="sourceLineNo">188</span> };<a name="line.188"></a> +<span class="sourceLineNo">189</span> scanMetaForTableRegions(connection, visitor, tableName);<a name="line.189"></a> +<span class="sourceLineNo">190</span> return regions;<a name="line.190"></a> +<span class="sourceLineNo">191</span> }<a name="line.191"></a> +<span class="sourceLineNo">192</span><a name="line.192"></a> +<span class="sourceLineNo">193</span> @InterfaceAudience.Private<a name="line.193"></a> +<span class="sourceLineNo">194</span> public enum QueryType {<a name="line.194"></a> +<span class="sourceLineNo">195</span> ALL(HConstants.TABLE_FAMILY, HConstants.CATALOG_FAMILY),<a name="line.195"></a> +<span class="sourceLineNo">196</span> REGION(HConstants.CATALOG_FAMILY),<a name="line.196"></a> +<span class="sourceLineNo">197</span> TABLE(HConstants.TABLE_FAMILY),<a name="line.197"></a> +<span class="sourceLineNo">198</span> REPLICATION(HConstants.REPLICATION_BARRIER_FAMILY);<a name="line.198"></a> <span class="sourceLineNo">199</span><a name="line.199"></a> -<span class="sourceLineNo">200</span> QueryType(byte[]... families) {<a name="line.200"></a> -<span class="sourceLineNo">201</span> this.families = 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> byte[][] getFamilies() {<a name="line.204"></a> -<span class="sourceLineNo">205</span> return this.families;<a name="line.205"></a> -<span class="sourceLineNo">206</span> }<a name="line.206"></a> -<span class="sourceLineNo">207</span> }<a name="line.207"></a> -<span class="sourceLineNo">208</span><a name="line.208"></a> -<span class="sourceLineNo">209</span> /** The delimiter for meta columns for replicaIds &gt; 0 */<a name="line.209"></a> -<span class="sourceLineNo">210</span> protected static final char META_REPLICA_ID_DELIMITER = '_';<a name="line.210"></a> -<span class="sourceLineNo">211</span><a name="line.211"></a> -<span class="sourceLineNo">212</span> /** A regex for parsing server columns from meta. See above javadoc for meta layout */<a name="line.212"></a> -<span class="sourceLineNo">213</span> private static final Pattern SERVER_COLUMN_PATTERN<a name="line.213"></a> -<span class="sourceLineNo">214</span> = Pattern.compile("^server(_[0-9a-fA-F]{4})?$");<a name="line.214"></a> -<span class="sourceLineNo">215</span><a name="line.215"></a> -<span class="sourceLineNo">216</span> ////////////////////////<a name="line.216"></a> -<span class="sourceLineNo">217</span> // Reading operations //<a name="line.217"></a> +<span class="sourceLineNo">200</span> private final byte[][] families;<a name="line.200"></a> +<span class="sourceLineNo">201</span><a name="line.201"></a> +<span class="sourceLineNo">202</span> QueryType(byte[]... families) {<a name="line.202"></a> +<span class="sourceLineNo">203</span> this.families = families;<a name="line.203"></a> +<span class="sourceLineNo">204</span> }<a name="line.204"></a> +<span class="sourceLineNo">205</span><a name="line.205"></a> +<span class="sourceLineNo">206</span> byte[][] getFamilies() {<a name="line.206"></a> +<span class="sourceLineNo">207</span> return this.families;<a name="line.207"></a> +<span class="sourceLineNo">208</span> }<a name="line.208"></a> +<span class="sourceLineNo">209</span> }<a name="line.209"></a> +<span class="sourceLineNo">210</span><a name="line.210"></a> +<span class="sourceLineNo">211</span> /** The delimiter for meta columns for replicaIds &gt; 0 */<a name="line.211"></a> +<span class="sourceLineNo">212</span> protected static final char META_REPLICA_ID_DELIMITER = '_';<a name="line.212"></a> +<span class="sourceLineNo">213</span><a name="line.213"></a> +<span class="sourceLineNo">214</span> /** A regex for parsing server columns from meta. See above javadoc for meta layout */<a name="line.214"></a> +<span class="sourceLineNo">215</span> private static final Pattern SERVER_COLUMN_PATTERN<a name="line.215"></a> +<span class="sourceLineNo">216</span> = Pattern.compile("^server(_[0-9a-fA-F]{4})?$");<a name="line.216"></a> +<span class="sourceLineNo">217</span><a name="line.217"></a> <span class="sourceLineNo">218</span> ////////////////////////<a name="line.218"></a> -<span class="sourceLineNo">219</span><a name="line.219"></a> -<span class="sourceLineNo">220</span> /**<a name="line.220"></a> -<span class="sourceLineNo">221</span> * Performs a full scan of <code>hbase:meta</code> for regions.<a name="line.221"></a> -<span class="sourceLineNo">222</span> * @param connection connection we're using<a name="line.222"></a> -<span class="sourceLineNo">223</span> * @param visitor Visitor invoked against each row in regions family.<a name="line.223"></a> -<span class="sourceLineNo">224</span> */<a name="line.224"></a> -<span class="sourceLineNo">225</span> public static void fullScanRegions(Connection connection,<a name="line.225"></a> -<span class="sourceLineNo">226</span> final Visitor visitor)<a name="line.226"></a> -<span class="sourceLineNo">227</span> throws IOException {<a name="line.227"></a> -<span class="sourceLineNo">228</span> scanMeta(connection, null, null, QueryType.REGION, visitor);<a name="line.228"></a> -<span class="sourceLineNo">229</span> }<a name="line.229"></a> -<span class="sourceLineNo">230</span><a name="line.230"></a> -<span class="sourceLineNo">231</span> /**<a name="line.231"></a> -<span class="sourceLineNo">232</span> * Performs a full scan of <code>hbase:meta</code> for regions.<a name="line.232"></a> -<span class="sourceLineNo">233</span> * @param connection connection we're using<a name="line.233"></a> -<span class="sourceLineNo">234</span> */<a name="line.234"></a> -<span class="sourceLineNo">235</span> public static List<Result> fullScanRegions(Connection connection)<a name="line.235"></a> -<span class="sourceLineNo">236</span> throws IOException {<a name="line.236"></a> -<span class="sourceLineNo">237</span> return fullScan(connection, QueryType.REGION);<a name="line.237"></a> -<span class="sourceLineNo">238</span> }<a name="line.238"></a> -<span class="sourceLineNo">239</span><a name="line.239"></a> -<span class="sourceLineNo">240</span> /**<a name="line.240"></a> -<span class="sourceLineNo">241</span> * Performs a full scan of <code>hbase:meta</code> for tables.<a name="line.241"></a> -<span class="sourceLineNo">242</span> * @param connection connection we're using<a name="line.242"></a> -<span class="sourceLineNo">243</span> * @param visitor Visitor invoked against each row in tables family.<a name="line.243"></a> -<span class="sourceLineNo">244</span> */<a name="line.244"></a> -<span class="sourceLineNo">245</span> public static void fullScanTables(Connection connection,<a name="line.245"></a> -<span class="sourceLineNo">246</span> final Visitor visitor)<a name="line.246"></a> -<span class="sourceLineNo">247</span> throws IOException {<a name="line.247"></a> -<span class="sourceLineNo">248</span> scanMeta(connection, null, null, QueryType.TABLE, visitor);<a name="line.248"></a> -<span class="sourceLineNo">249</span> }<a name="line.249"></a> -<span class="sourceLineNo">250</span><a name="line.250"></a> -<span class="sourceLineNo">251</span> /**<a name="line.251"></a> -<span class="sourceLineNo">252</span> * Performs a full scan of <code>hbase:meta</code>.<a name="line.252"></a> -<span class="sourceLineNo">253</span> * @param connection connection we're using<a name="line.253"></a> -<span class="sourceLineNo">254</span> * @param type scanned part of meta<a name="line.254"></a> -<span class="sourceLineNo">255</span> * @return List of {@link Result}<a name="line.255"></a> -<span class="sourceLineNo">256</span> */<a name="line.256"></a> -<span class="sourceLineNo">257</span> public static List<Result> fullScan(Connection connection, QueryType type)<a name="line.257"></a> -<span class="sourceLineNo">258</span> throws IOException {<a name="line.258"></a> -<span class="sourceLineNo">259</span> CollectAllVisitor v = new CollectAllVisitor();<a name="line.259"></a> -<span class="sourceLineNo">260</span> scanMeta(connection, null, null, type, v);<a name="line.260"></a> -<span class="sourceLineNo">261</span> return v.getResults();<a name="line.261"></a> -<span class="sourceLineNo">262</span> }<a name="line.262"></a> -<span class="sourceLineNo">263</span><a name="line.263"></a> -<span class="sourceLineNo">264</span> /**<a name="line.264"></a> -<span class="sourceLineNo">265</span> * Callers should call close on the returned {@link Table} instance.<a name="line.265"></a> -<span class="sourceLineNo">266</span> * @param connection connection we're using to access Meta<a name="line.266"></a> -<span class="sourceLineNo">267</span> * @return An {@link Table} for <code>hbase:meta</code><a name="line.267"></a> -<span class="sourceLineNo">268</span> */<a name="line.268"></a> -<span class="sourceLineNo">269</span> public static Table getMetaHTable(final Connection connection)<a name="line.269"></a> -<span class="sourceLineNo">270</span> throws IOException {<a name="line.270"></a> -<span class="sourceLineNo">271</span> // We used to pass whole CatalogTracker in here, now we just pass in Connection<a name="line.271"></a> -<span class="sourceLineNo">272</span> if (connection == null) {<a name="line.272"></a> -<span class="sourceLineNo">273</span> throw new NullPointerException("No connection");<a name="line.273"></a> -<span class="sourceLineNo">274</span> } else if (connection.isClosed()) {<a name="line.274"></a> -<span class="sourceLineNo">275</span> throw new IOException("connection is closed");<a name="line.275"></a> -<span class="sourceLineNo">276</span> }<a name="line.276"></a> -<span class="sourceLineNo">277</span> return connection.getTable(TableName.META_TABLE_NAME);<a name="line.277"></a> -<span class="sourceLineNo">278</span> }<a name="line.278"></a> -<span class="sourceLineNo">279</span><a name="line.279"></a> -<span class="sourceLineNo">280</span> /**<a name="line.280"></a> -<span class="sourceLineNo">281</span> * @param t Table to use (will be closed when done).<a name="line.281"></a> -<span class="sourceLineNo">282</span> * @param g Get to run<a name="line.282"></a> -<span class="sourceLineNo">283</span> */<a name="line.283"></a> -<span class="sourceLineNo">284</span> private static Result get(final Table t, final Get g) throws IOException {<a name="line.284"></a> -<span class="sourceLineNo">285</span> if (t == null) return null;<a name="line.285"></a> -<span class="sourceLineNo">286</span> try {<a name="line.286"></a> -<span class="sourceLineNo">287</span> return t.get(g);<a name="line.287"></a> -<span class="sourceLineNo">288</span> } finally {<a name="line.288"></a> -<span class="sourceLineNo">289</span> t.close();<a name="line.289"></a> -<span class="sourceLineNo">290</span> }<a name="line.290"></a> -<span class="sourceLineNo">291</span> }<a name="line.291"></a> -<span class="sourceLineNo">292</span><a name="line.292"></a> -<span class="sourceLineNo">293</span> /**<a name="line.293"></a> -<span class="sourceLineNo">294</span> * Gets the region info and assignment for the specified region.<a name="line.294"></a> -<span class="sourceLineNo">295</span> * @param connection connection we're using<a name="line.295"></a> -<span class="sourceLineNo">296</span> * @param regionName Region to lookup.<a name="line.296"></a> -<span class="sourceLineNo">297</span> * @return Location and RegionInfo for <code>regionName</code><a name="line.297"></a> -<span class="sourceLineNo">298</span> * @deprecated use {@link #getRegionLocation(Connection, byte[])} instead<a name="line.298"></a> -<span class="sourceLineNo">299</span> */<a name="line.299"></a> -<span class="sourceLineNo">300</span> @Deprecated<a name="line.300"></a> -<span class="sourceLineNo">301</span> public static Pair<RegionInfo, ServerName> getRegion(Connection connection, byte [] regionName)<a name="line.301"></a> -<span class="sourceLineNo">302</span> throws IOException {<a name="line.302"></a> -<span class="sourceLineNo">303</span> HRegionLocation location = getRegionLocation(connection, regionName);<a name="line.303"></a> -<span class="sourceLineNo">304</span> return location == null<a name="line.304"></a> -<span class="sourceLineNo">305</span> ? null<a name="line.305"></a> -<span class="sourceLineNo">306</span> : new Pair<>(location.getRegionInfo(), location.getServerName());<a name="line.306"></a> -<span class="sourceLineNo">307</span> }<a name="line.307"></a> -<span class="sourceLineNo">308</span><a name="line.308"></a> -<span class="sourceLineNo">309</span> /**<a name="line.309"></a> -<span class="sourceLineNo">310</span> * Returns the HRegionLocation from meta for the given region<a name="line.310"></a> -<span class="sourceLineNo">311</span> * @param connection connection we're using<a name="line.311"></a> -<span class="sourceLineNo">312</span> * @param regionName region we're looking for<a name="line.312"></a> -<span class="sourceLineNo">313</span> * @return HRegionLocation for the given region<a name="line.313"></a> -<span class="sourceLineNo">314</span> */<a name="line.314"></a> -<span class="sourceLineNo">315</span> public static HRegionLocation getRegionLocation(Connection connection, byte[] regionName)<a name="line.315"></a> -<span class="sourceLineNo">316</span> throws IOException {<a name="line.316"></a> -<span class="sourceLineNo">317</span> byte[] row = regionName;<a name="line.317"></a> -<span class="sourceLineNo">318</span> RegionInfo parsedInfo = null;<a name="line.318"></a> -<span class="sourceLineNo">319</span> try {<a name="line.319"></a> -<span class="sourceLineNo">320</span> parsedInfo = parseRegionInfoFromRegionName(regionName);<a name="line.320"></a> -<span class="sourceLineNo">321</span> row = getMetaKeyForRegion(parsedInfo);<a name="line.321"></a> -<span class="sourceLineNo">322</span> } catch (Exception parseEx) {<a name="line.322"></a> -<span class="sourceLineNo">323</span> // Ignore. This is used with tableName passed as regionName.<a name="line.323"></a> -<span class="sourceLineNo">324</span> }<a name="line.324"></a> -<span class="sourceLineNo">325</span> Get get = new Get(row);<a name="line.325"></a> -<span class="sourceLineNo">326</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.326"></a> -<span class="sourceLineNo">327</span> Result r = get(getMetaHTable(connection), get);<a name="line.327"></a> -<span class="sourceLineNo">328</span> RegionLocations locations = getRegionLocations(r);<a name="line.328"></a> -<span class="sourceLineNo">329</span> return locations == null ? null<a name="line.329"></a> -<span class="sourceLineNo">330</span> : locations.getRegionLocation(parsedInfo == null ? 0 : parsedInfo.getReplicaId());<a name="line.330"></a> -<span class="sourceLineNo">331</span> }<a name="line.331"></a> -<span class="sourceLineNo">332</span><a name="line.332"></a> -<span class="sourceLineNo">333</span> /**<a name="line.333"></a> -<span class="sourceLineNo">334</span> * Returns the HRegionLocation from meta for the given region<a name="line.334"></a> -<span class="sourceLineNo">335</span> * @param connection connection we're using<a name="line.335"></a> -<span class="sourceLineNo">336</span> * @param regionInfo region information<a name="line.336"></a> -<span class="sourceLineNo">337</span> * @return HRegionLocation for the given region<a name="line.337"></a> -<span class="sourceLineNo">338</span> */<a name="line.338"></a> -<span class="sourceLineNo">339</span> public static HRegionLocation getRegionLocation(Connection connection, RegionInfo regionInfo)<a name="line.339"></a> -<span class="sourceLineNo">340</span> throws IOException {<a name="line.340"></a> -<span class="sourceLineNo">341</span> byte[] row = getMetaKeyForRegion(regionInfo);<a name="line.341"></a> -<span class="sourceLineNo">342</span> Get get = new Get(row);<a name="line.342"></a> -<span class="sourceLineNo">343</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.343"></a> -<span class="sourceLineNo">344</span> Result r = get(getMetaHTable(connection), get);<a name="line.344"></a> -<span class="sourceLineNo">345</span> return getRegionLocation(r, regionInfo, regionInfo.getReplicaId());<a name="line.345"></a> -<span class="sourceLineNo">346</span> }<a name="line.346"></a> -<span class="sourceLineNo">347</span><a name="line.347"></a> -<span class="sourceLineNo">348</span> /** Returns the row key to use for this regionInfo */<a name="line.348"></a> -<span class="sourceLineNo">349</span> public static byte[] getMetaKeyForRegion(RegionInfo regionInfo) {<a name="line.349"></a> -<span class="sourceLineNo">350</span> return RegionReplicaUtil.getRegionInfoForDefaultReplica(regionInfo).getRegionName();<a name="line.350"></a> -<span class="sourceLineNo">351</span> }<a name="line.351"></a> -<span class="sourceLineNo">352</span><a name="line.352"></a> -<span class="sourceLineNo">353</span> /** Returns an HRI parsed from this regionName. Not all the fields of the HRI<a name="line.353"></a> -<span class="sourceLineNo">354</span> * is stored in the name, so the returned object should only be used for the fields<a name="line.354"></a> -<span class="sourceLineNo">355</span> * in the regionName.<a name="line.355"></a> -<span class="sourceLineNo">356</span> */<a name="line.356"></a> -<span class="sourceLineNo">357</span> public static RegionInfo parseRegionInfoFromRegionName(byte[] regionName) throws IOException {<a name="line.357"></a> -<span class="sourceLineNo">358</span> byte[][] fields = RegionInfo.parseRegionName(regionName);<a name="line.358"></a> -<span class="sourceLineNo">359</span> long regionId = Long.parseLong(Bytes.toString(fields[2]));<a name="line.359"></a> -<span class="sourceLineNo">360</span> int replicaId = fields.length > 3 ? Integer.parseInt(Bytes.toString(fields[3]), 16) : 0;<a name="line.360"></a> -<span class="sourceLineNo">361</span> return RegionInfoBuilder.newBuilder(TableName.valueOf(fields[0]))<a name="line.361"></a> -<span class="sourceLineNo">362</span> .setStartKey(fields[1])<a name="line.362"></a> -<span class="sourceLineNo">363</span> .setEndKey(fields[2])<a name="line.363"></a> -<span class="sourceLineNo">364</span> .setSplit(false)<a name="line.364"></a> -<span class="sourceLineNo">365</span> .setRegionId(regionId)<a name="line.365"></a> -<span class="sourceLineNo">366</span> .setReplicaId(replicaId)<a name="line.366"></a> -<span class="sourceLineNo">367</span> .build();<a name="line.367"></a> -<span class="sourceLineNo">368</span> }<a name="line.368"></a> -<span class="sourceLineNo">369</span><a name="line.369"></a> -<span class="sourceLineNo">370</span> /**<a name="line.370"></a> -<span class="sourceLineNo">371</span> * Gets the result in hbase:meta for the specified region.<a name="line.371"></a> -<span class="sourceLineNo">372</span> * @param connection connection we're using<a name="line.372"></a> -<span class="sourceLineNo">373</span> * @param regionName region we're looking for<a name="line.373"></a> -<span class="sourceLineNo">374</span> * @return result of the specified region<a name="line.374"></a> -<span class="sourceLineNo">375</span> */<a name="line.375"></a> -<span class="sourceLineNo">376</span> public static Result getRegionResult(Connection connection,<a name="line.376"></a> -<span class="sourceLineNo">377</span> byte[] regionName) throws IOException {<a name="line.377"></a> -<span class="sourceLineNo">378</span> Get get = new Get(regionName);<a name="line.378"></a> -<span class="sourceLineNo">379</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.379"></a> -<span class="sourceLineNo">380</span> return get(getMetaHTable(connection), get);<a name="line.380"></a> -<span class="sourceLineNo">381</span> }<a name="line.381"></a> -<span class="sourceLineNo">382</span><a name="line.382"></a> -<span class="sourceLineNo">383</span> /**<a name="line.383"></a> -<span class="sourceLineNo">384</span> * Get regions from the merge qualifier of the specified merged region<a name="line.384"></a> -<span class="sourceLineNo">385</span> * @return null if it doesn't contain merge qualifier, else two merge regions<a name="line.385"></a> -<span class="sourceLineNo">386</span> */<a name="line.386"></a> -<span class="sourceLineNo">387</span> @Nullable<a name="line.387"></a> -<span class="sourceLineNo">388</span> public static Pair<RegionInfo, RegionInfo> getRegionsFromMergeQualifier(<a name="line.388"></a> -<span class="sourceLineNo">389</span> Connection connection, byte[] regionName) throws IOException {<a name="line.389"></a> -<span class="sourceLineNo">390</span> Result result = getRegionResult(connection, regionName);<a name="line.390"></a> -<span class="sourceLineNo">391</span> RegionInfo mergeA = getRegionInfo(result, HConstants.MERGEA_QUALIFIER);<a name="line.391"></a> -<span class="sourceLineNo">392</span> RegionInfo mergeB = getRegionInfo(result, HConstants.MERGEB_QUALIFIER);<a name="line.392"></a> -<span class="sourceLineNo">393</span> if (mergeA == null && mergeB == null) {<a name="line.393"></a> -<span class="sourceLineNo">394</span> return null;<a name="line.394"></a> -<span class="sourceLineNo">395</span> }<a name="line.395"></a> -<span class="sourceLineNo">396</span> return new Pair<>(mergeA, mergeB);<a name="line.396"></a> -<span class="sourceLineNo">397</span> }<a name="line.397"></a> -<span class="sourceLineNo">398</span><a name="line.398"></a> -<span class="sourceLineNo">399</span> /**<a name="line.399"></a> -<span class="sourceLineNo">400</span> * Checks if the specified table exists. Looks at the hbase:meta table hosted on<a name="line.400"></a> -<span class="sourceLineNo">401</span> * the specified server.<a name="line.401"></a> -<span class="sourceLineNo">402</span> * @param connection connection we're using<a name="line.402"></a> -<span class="sourceLineNo">403</span> * @param tableName table to check<a name="line.403"></a> -<span class="sourceLineNo">404</span> * @return true if the table exists in meta, false if not<a name="line.404"></a> -<span class="sourceLineNo">405</span> */<a name="line.405"></a> -<span class="sourceLineNo">406</span> public static boolean tableExists(Connection connection,<a name="line.406"></a> -<span class="sourceLineNo">407</span> final TableName tableName)<a name="line.407"></a> -<span class="sourceLineNo">408</span> throws IOException {<a name="line.408"></a> -<span class="sourceLineNo">409</span> // Catalog tables always exist.<a name="line.409"></a> -<span class="sourceLineNo">410</span> return tableName.equals(TableName.META_TABLE_NAME)<a name="line.410"></a> -<span class="sourceLineNo">411</span> || getTableState(connection, tableName) != null;<a name="line.411"></a> -<span class="sourceLineNo">412</span> }<a name="line.412"></a> -<span class="sourceLineNo">413</span><a name="line.413"></a> -<span class="sourceLineNo">414</span> /**<a name="line.414"></a> -<span class="sourceLineNo">415</span> * Lists all of the regions currently in META.<a name="line.415"></a> -<span class="sourceLineNo">416</span> *<a name="line.416"></a> -<span class="sourceLineNo">417</span> * @param connection to connect with<a name="line.417"></a> -<span class="sourceLineNo">418</span> * @param excludeOfflinedSplitParents False if we are to include offlined/splitparents regions,<a name="line.418"></a> -<span class="sourceLineNo">419</span> * true and we'll leave out offlined regions from returned list<a name="line.419"></a> -<span class="sourceLineNo">420</span> * @return List of all user-space regions.<a name="line.420"></a> -<span class="sourceLineNo">421</span> */<a name="line.421"></a> -<span class="sourceLineNo">422</span> @VisibleForTesting<a name="line.422"></a> -<span class="sourceLineNo">423</span> public static List<RegionInfo> getAllRegions(Connection connection,<a name="line.423"></a> -<span class="sourceLineNo">424</span> boolean excludeOfflinedSplitParents)<a name="line.424"></a> -<span class="sourceLineNo">425</span> throws IOException {<a name="line.425"></a> -<span class="sourceLineNo">426</span> List<Pair<RegionInfo, ServerName>> result;<a name="line.426"></a> -<span class="sourceLineNo">427</span><a name="line.427"></a> -<span class="sourceLineNo">428</span> result = getTableRegionsAndLocations(connection, null,<a name="line.428"></a> -<span class="sourceLineNo">429</span> excludeOfflinedSplitParents);<a name="line.429"></a> -<span class="sourceLineNo">430</span><a name="line.430"></a> -<span class="sourceLineNo">431</span> return getListOfRegionInfos(result);<a name="line.431"></a> +<span class="sourceLineNo">219</span> // Reading operations //<a name="line.219"></a> +<span class="sourceLineNo">220</span> ////////////////////////<a name="line.220"></a> +<span class="sourceLineNo">221</span><a name="line.221"></a> +<span class="sourceLineNo">222</span> /**<a name="line.222"></a> +<span class="sourceLineNo">223</span> * Performs a full scan of <code>hbase:meta</code> for regions.<a name="line.223"></a> +<span class="sourceLineNo">224</span> * @param connection connection we're using<a name="line.224"></a> +<span class="sourceLineNo">225</span> * @param visitor Visitor invoked against each row in regions family.<a name="line.225"></a> +<span class="sourceLineNo">226</span> */<a name="line.226"></a> +<span class="sourceLineNo">227</span> public static void fullScanRegions(Connection connection,<a name="line.227"></a> +<span class="sourceLineNo">228</span> final Visitor visitor)<a name="line.228"></a> +<span class="sourceLineNo">229</span> throws IOException {<a name="line.229"></a> +<span class="sourceLineNo">230</span> scanMeta(connection, null, null, QueryType.REGION, visitor);<a name="line.230"></a> +<span class="sourceLineNo">231</span> }<a name="line.231"></a> +<span class="sourceLineNo">232</span><a name="line.232"></a> +<span class="sourceLineNo">233</span> /**<a name="line.233"></a> +<span class="sourceLineNo">234</span> * Performs a full scan of <code>hbase:meta</code> for regions.<a name="line.234"></a> +<span class="sourceLineNo">235</span> * @param connection connection we're using<a name="line.235"></a> +<span class="sourceLineNo">236</span> */<a name="line.236"></a> +<span class="sourceLineNo">237</span> public static List<Result> fullScanRegions(Connection connection)<a name="line.237"></a> +<span class="sourceLineNo">238</span> throws IOException {<a name="line.238"></a> +<span class="sourceLineNo">239</span> return fullScan(connection, QueryType.REGION);<a name="line.239"></a> +<span class="sourceLineNo">240</span> }<a name="line.240"></a> +<span class="sourceLineNo">241</span><a name="line.241"></a> +<span class="sourceLineNo">242</span> /**<a name="line.242"></a> +<span class="sourceLineNo">243</span> * Performs a full scan of <code>hbase:meta</code> for tables.<a name="line.243"></a> +<span class="sourceLineNo">244</span> * @param connection connection we're using<a name="line.244"></a> +<span class="sourceLineNo">245</span> * @param visitor Visitor invoked against each row in tables family.<a name="line.245"></a> +<span class="sourceLineNo">246</span> */<a name="line.246"></a> +<span class="sourceLineNo">247</span> public static void fullScanTables(Connection connection,<a name="line.247"></a> +<span class="sourceLineNo">248</span> final Visitor visitor)<a name="line.248"></a> +<span class="sourceLineNo">249</span> throws IOException {<a name="line.249"></a> +<span class="sourceLineNo">250</span> scanMeta(connection, null, null, QueryType.TABLE, visitor);<a name="line.250"></a> +<span class="sourceLineNo">251</span> }<a name="line.251"></a> +<span class="sourceLineNo">252</span><a name="line.252"></a> +<span class="sourceLineNo">253</span> /**<a name="line.253"></a> +<span class="sourceLineNo">254</span> * Performs a full scan of <code>hbase:meta</code>.<a name="line.254"></a> +<span class="sourceLineNo">255</span> * @param connection connection we're using<a name="line.255"></a> +<span class="sourceLineNo">256</span> * @param type scanned part of meta<a name="line.256"></a> +<span class="sourceLineNo">257</span> * @return List of {@link Result}<a name="line.257"></a> +<span class="sourceLineNo">258</span> */<a name="line.258"></a> +<span class="sourceLineNo">259</span> public static List<Result> fullScan(Connection connection, QueryType type)<a name="line.259"></a> +<span class="sourceLineNo">260</span> throws IOException {<a name="line.260"></a> +<span class="sourceLineNo">261</span> CollectAllVisitor v = new CollectAllVisitor();<a name="line.261"></a> +<span class="sourceLineNo">262</span> scanMeta(connection, null, null, type, v);<a name="line.262"></a> +<span class="sourceLineNo">263</span> return v.getResults();<a name="line.263"></a> +<span class="sourceLineNo">264</span> }<a name="line.264"></a> +<span class="sourceLineNo">265</span><a name="line.265"></a> +<span class="sourceLineNo">266</span> /**<a name="line.266"></a> +<span class="sourceLineNo">267</span> * Callers should call close on the returned {@link Table} instance.<a name="line.267"></a> +<span class="sourceLineNo">268</span> * @param connection connection we're using to access Meta<a name="line.268"></a> +<span class="sourceLineNo">269</span> * @return An {@link Table} for <code>hbase:meta</code><a name="line.269"></a> +<span class="sourceLineNo">270</span> */<a name="line.270"></a> +<span class="sourceLineNo">271</span> public static Table getMetaHTable(final Connection connection)<a name="line.271"></a> +<span class="sourceLineNo">272</span> throws IOException {<a name="line.272"></a> +<span class="sourceLineNo">273</span> // We used to pass whole CatalogTracker in here, now we just pass in Connection<a name="line.273"></a> +<span class="sourceLineNo">274</span> if (connection == null) {<a name="line.274"></a> +<span class="sourceLineNo">275</span> throw new NullPointerException("No connection");<a name="line.275"></a> +<span class="sourceLineNo">276</span> } else if (connection.isClosed()) {<a name="line.276"></a> +<span class="sourceLineNo">277</span> throw new IOException("connection is closed");<a name="line.277"></a> +<span class="sourceLineNo">278</span> }<a name="line.278"></a> +<span class="sourceLineNo">279</span> return connection.getTable(TableName.META_TABLE_NAME);<a name="line.279"></a> +<span class="sourceLineNo">280</span> }<a name="line.280"></a> +<span class="sourceLineNo">281</span><a name="line.281"></a> +<span class="sourceLineNo">282</span> /**<a name="line.282"></a> +<span class="sourceLineNo">283</span> * @param t Table to use (will be closed when done).<a name="line.283"></a> +<span class="sourceLineNo">284</span> * @param g Get to run<a name="line.284"></a> +<span class="sourceLineNo">285</span> */<a name="line.285"></a> +<span class="sourceLineNo">286</span> private static Result get(final Table t, final Get g) throws IOException {<a name="line.286"></a> +<span class="sourceLineNo">287</span> if (t == null) return null;<a name="line.287"></a> +<span class="sourceLineNo">288</span> try {<a name="line.288"></a> +<span class="sourceLineNo">289</span> return t.get(g);<a name="line.289"></a> +<span class="sourceLineNo">290</span> } finally {<a name="line.290"></a> +<span class="sourceLineNo">291</span> t.close();<a name="line.291"></a> +<span class="sourceLineNo">292</span> }<a name="line.292"></a> +<span class="sourceLineNo">293</span> }<a name="line.293"></a> +<span class="sourceLineNo">294</span><a name="line.294"></a> +<span class="sourceLineNo">295</span> /**<a name="line.295"></a> +<span class="sourceLineNo">296</span> * Gets the region info and assignment for the specified region.<a name="line.296"></a> +<span class="sourceLineNo">297</span> * @param connection connection we're using<a name="line.297"></a> +<span class="sourceLineNo">298</span> * @param regionName Region to lookup.<a name="line.298"></a> +<span class="sourceLineNo">299</span> * @return Location and RegionInfo for <code>regionName</code><a name="line.299"></a> +<span class="sourceLineNo">300</span> * @deprecated use {@link #getRegionLocation(Connection, byte[])} instead<a name="line.300"></a> +<span class="sourceLineNo">301</span> */<a name="line.301"></a> +<span class="sourceLineNo">302</span> @Deprecated<a name="line.302"></a> +<span class="sourceLineNo">303</span> public static Pair<RegionInfo, ServerName> getRegion(Connection connection, byte [] regionName)<a name="line.303"></a> +<span class="sourceLineNo">304</span> throws IOException {<a name="line.304"></a> +<span class="sourceLineNo">305</span> HRegionLocation location = getRegionLocation(connection, regionName);<a name="line.305"></a> +<span class="sourceLineNo">306</span> return location == null<a name="line.306"></a> +<span class="sourceLineNo">307</span> ? null<a name="line.307"></a> +<span class="sourceLineNo">308</span> : new Pair<>(location.getRegionInfo(), location.getServerName());<a name="line.308"></a> +<span class="sourceLineNo">309</span> }<a name="line.309"></a> +<span class="sourceLineNo">310</span><a name="line.310"></a> +<span class="sourceLineNo">311</span> /**<a name="line.311"></a> +<span class="sourceLineNo">312</span> * Returns the HRegionLocation from meta for the given region<a name="line.312"></a> +<span class="sourceLineNo">313</span> * @param connection connection we're using<a name="line.313"></a> +<span class="sourceLineNo">314</span> * @param regionName region we're looking for<a name="line.314"></a> +<span class="sourceLineNo">315</span> * @return HRegionLocation for the given region<a name="line.315"></a> +<span class="sourceLineNo">316</span> */<a name="line.316"></a> +<span class="sourceLineNo">317</span> public static HRegionLocation getRegionLocation(Connection connection, byte[] regionName)<a name="line.317"></a> +<span class="sourceLineNo">318</span> throws IOException {<a name="line.318"></a> +<span class="sourceLineNo">319</span> byte[] row = regionName;<a name="line.319"></a> +<span class="sourceLineNo">320</span> RegionInfo parsedInfo = null;<a name="line.320"></a> +<span class="sourceLineNo">321</span> try {<a name="line.321"></a> +<span class="sourceLineNo">322</span> parsedInfo = parseRegionInfoFromRegionName(regionName);<a name="line.322"></a> +<span class="sourceLineNo">323</span> row = getMetaKeyForRegion(parsedInfo);<a name="line.323"></a> +<span class="sourceLineNo">324</span> } catch (Exception parseEx) {<a name="line.324"></a> +<span class="sourceLineNo">325</span> // Ignore. This is used with tableName passed as regionName.<a name="line.325"></a> +<span class="sourceLineNo">326</span> }<a name="line.326"></a> +<span class="sourceLineNo">327</span> Get get = new Get(row);<a name="line.327"></a> +<span class="sourceLineNo">328</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.328"></a> +<span class="sourceLineNo">329</span> Result r = get(getMetaHTable(connection), get);<a name="line.329"></a> +<span class="sourceLineNo">330</span> RegionLocations locations = getRegionLocations(r);<a name="line.330"></a> +<span class="sourceLineNo">331</span> return locations == null ? null<a name="line.331"></a> +<span class="sourceLineNo">332</span> : locations.getRegionLocation(parsedInfo == null ? 0 : parsedInfo.getReplicaId());<a name="line.332"></a> +<span class="sourceLineNo">333</span> }<a name="line.333"></a> +<span class="sourceLineNo">334</span><a name="line.334"></a> +<span class="sourceLineNo">335</span> /**<a name="line.335"></a> +<span class="sourceLineNo">336</span> * Returns the HRegionLocation from meta for the given region<a name="line.336"></a> +<span class="sourceLineNo">337</span> * @param connection connection we're using<a name="line.337"></a> +<span class="sourceLineNo">338</span> * @param regionInfo region information<a name="line.338"></a> +<span class="sourceLineNo">339</span> * @return HRegionLocation for the given region<a name="line.339"></a> +<span class="sourceLineNo">340</span> */<a name="line.340"></a> +<span class="sourceLineNo">341</span> public static HRegionLocation getRegionLocation(Connection connection, RegionInfo regionInfo)<a name="line.341"></a> +<span class="sourceLineNo">342</span> throws IOException {<a name="line.342"></a> +<span class="sourceLineNo">343</span> byte[] row = getMetaKeyForRegion(regionInfo);<a name="line.343"></a> +<span class="sourceLineNo">344</span> Get get = new Get(row);<a name="line.344"></a> +<span class="sourceLineNo">345</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.345"></a> +<span class="sourceLineNo">346</span> Result r = get(getMetaHTable(connection), get);<a name="line.346"></a> +<span class="sourceLineNo">347</span> return getRegionLocation(r, regionInfo, regionInfo.getReplicaId());<a name="line.347"></a> +<span class="sourceLineNo">348</span> }<a name="line.348"></a> +<span class="sourceLineNo">349</span><a name="line.349"></a> +<span class="sourceLineNo">350</span> /** Returns the row key to use for this regionInfo */<a name="line.350"></a> +<span class="sourceLineNo">351</span> public static byte[] getMetaKeyForRegion(RegionInfo regionInfo) {<a name="line.351"></a> +<span class="sourceLineNo">352</span> return RegionReplicaUtil.getRegionInfoForDefaultReplica(regionInfo).getRegionName();<a name="line.352"></a> +<span class="sourceLineNo">353</span> }<a name="line.353"></a> +<span class="sourceLineNo">354</span><a name="line.354"></a> +<span class="sourceLineNo">355</span> /** Returns an HRI parsed from this regionName. Not all the fields of the HRI<a name="line.355"></a> +<span class="sourceLineNo">356</span> * is stored in the name, so the returned object should only be used for the fields<a name="line.356"></a> +<span class="sourceLineNo">357</span> * in the regionName.<a name="line.357"></a> +<span class="sourceLineNo">358</span> */<a name="line.358"></a> +<span class="sourceLineNo">359</span> public static RegionInfo parseRegionInfoFromRegionName(byte[] regionName) throws IOException {<a name="line.359"></a> +<span class="sourceLineNo">360</span> byte[][] fields = RegionInfo.parseRegionName(regionName);<a name="line.360"></a> +<span class="sourceLineNo">361</span> long regionId = Long.parseLong(Bytes.toString(fields[2]));<a name="line.361"></a> +<span class="sourceLineNo">362</span> int replicaId = fields.length > 3 ? Integer.parseInt(Bytes.toString(fields[3]), 16) : 0;<a name="line.362"></a> +<span class="sourceLineNo">363</span> return RegionInfoBuilder.newBuilder(TableName.valueOf(fields[0]))<a name="line.363"></a> +<span class="sourceLineNo">364</span> .setStartKey(fields[1])<a name="line.364"></a> +<span class="sourceLineNo">365</span> .setEndKey(fields[2])<a name="line.365"></a> +<span class="sourceLineNo">366</span> .setSplit(false)<a name="line.366"></a> +<span class="sourceLineNo">367</span> .setRegionId(regionId)<a name="line.367"></a> +<span class="sourceLineNo">368</span> .setReplicaId(replicaId)<a name="line.368"></a> +<span class="sourceLineNo">369</span> .build();<a name="line.369"></a> +<span class="sourceLineNo">370</span> }<a name="line.370"></a> +<span class="sourceLineNo">371</span><a name="line.371"></a> +<span class="sourceLineNo">372</span> /**<a name="line.372"></a> +<span class="sourceLineNo">373</span> * Gets the result in hbase:meta for the specified region.<a name="line.373"></a> +<span class="sourceLineNo">374</span> * @param connection connection we're using<a name="line.374"></a> +<span class="sourceLineNo">375</span> * @param regionName region we're looking for<a name="line.375"></a> +<span class="sourceLineNo">376</span> * @return result of the specified region<a name="line.376"></a> +<span class="sourceLineNo">377</span> */<a name="line.377"></a> +<span class="sourceLineNo">378</span> public static Result getRegionResult(Connection connection,<a name="line.378"></a> +<span class="sourceLineNo">379</span> byte[] regionName) throws IOException {<a name="line.379"></a> +<span class="sourceLineNo">380</span> Get get = new Get(regionName);<a name="line.380"></a> +<span class="sourceLineNo">381</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.381"></a> +<span class="sourceLineNo">382</span> return get(getMetaHTable(connection), get);<a name="line.382"></a> +<span class="sourceLineNo">383</span> }<a name="line.383"></a> +<span class="sourceLineNo">384</span><a name="line.384"></a> +<span class="sourceLineNo">385</span> /**<a name="line.385"></a> +<span class="sourceLineNo">386</span> * Get regions from the merge qualifier of the specified merged region<a name="line.386"></a> +<span class="sourceLineNo">387</span> * @return null if it doesn't contain merge qualifier, else two merge regions<a name="line.387"></a> +<span class="sourceLineNo">388</span> */<a name="line.388"></a> +<span class="sourceLineNo">389</span> @Nullable<a name="line.389"></a> +<span class="sourceLineNo">390</span> public static Pair<RegionInfo, RegionInfo> getRegionsFromMergeQualifier(<a name="line.390"></a> +<span class="sourceLineNo">391</span> Connection connection, byte[] regionName) throws IOException {<a name="line.391"></a> +<span class="sourceLineNo">392</span> Result result = getRegionResult(connection, regionName);<a name="line.392"></a> +<span class="sourceLineNo">393</span> RegionInfo mergeA = getRegionInfo(result, HConstants.MERGEA_QUALIFIER);<a name="line.393"></a> +<span class="sourceLineNo">394</span> RegionInfo mergeB = getRegionInfo(result, HConstants.MERGEB_QUALIFIER);<a name="line.394"></a> +<span class="sourceLineNo">395</span> if (mergeA == null && mergeB == null) {<a name="line.395"></a> +<span class="sourceLineNo">396</span> return null;<a name="line.396"></a> +<span class="sourceLineNo">397</span> }<a name="line.397"></a> +<span class="sourceLineNo">398</span> return new Pair<>(mergeA, mergeB);<a name="line.398"></a> +<span class="sourceLineNo">399</span> }<a name="line.399"></a> +<span class="sourceLineNo">400</span><a name="line.400"></a> +<span class="sourceLineNo">401</span> /**<a name="line.401"></a> +<span class="sourceLineNo">402</span> * Checks if the specified table exists. Looks at the hbase:meta table hosted on<a name="line.402"></a> +<span class="sourceLineNo">403</span> * the specified server.<a name="line.403"></a> +<span class="sourceLineNo">404</span> * @param connection connection we're using<a name="line.404"></a> +<span class="sourceLineNo">405</span> * @param tableName table to check<a name="line.405"></a> +<span class="sourceLineNo">406</span> * @return true if the table exists in meta, false if not<a name="line.406"></a> +<span class="sourceLineNo">407</span> */<a name="line.407"></a> +<span class="sourceLineNo">408</span> public static boolean tableExists(Connection connection,<a name="line.408"></a> +<span class="sourceLineNo">409</span> final TableName tableName)<a name="line.409"></a> +<span class="sourceLineNo">410</span> throws IOException {<a name="line.410"></a> +<span class="sourceLineNo">411</span> // Catalog tables always exist.<a name="line.411"></a> +<span class="sourceLineNo">412</span> return tableName.equals(TableName.META_TABLE_NAME)<a name="line.412"></a> +<span class="sourceLineNo">413</span> || getTableState(connection, tableName) != null;<a name="line.413"></a> +<span class="sourceLineNo">414</span> }<a name="line.414"></a> +<span class="sourceLineNo">415</span><a name="line.415"></a> +<span class="sourceLineNo">416</span> /**<a name="line.416"></a> +<span class="sourceLineNo">417</span> * Lists all of the regions currently in META.<a name="line.417"></a> +<span class="sourceLineNo">418</span> *<a name="line.418"></a> +<span class="sourceLineNo">419</span> * @param connection to connect with<a name="line.419"></a> +<span class="sourceLineNo">420</span> * @param excludeOfflinedSplitParents False if we are to include offlined/splitparents regions,<a name="line.420"></a> +<span class="sourceLineNo">421</span> * true and we'll leave out offlined regions from returned list<a name="line.421"></a> +<span class="sourceLineNo">422</span> * @return List of all user-space regions.<a name="line.422"></a> +<span class="sourceLineNo">423</span> */<a name="line.423"></a> +<span class="sourceLineNo">424</span> @VisibleForTesting<a name="line.424"></a> +<span class="sourceLineNo">425</span> public static List<RegionInfo> getAllRegions(Connection connection,<a name="line.425"></a> +<span class="sourceLineNo">426</span> boolean excludeOfflinedSplitParents)<a name="line.426"></a> +<span class="sourceLineNo">427</span> throws IOException {<a name="line.427"></a> +<span class="sourceLineNo">428</span> List<Pair<RegionInfo, ServerName>> result;<a name="line.428"></a> +<span class="sourceLineNo">429</span><a name="line.429"></a> +<span class="sourceLineNo">430</span> result = getTableRegionsAndLocations(connection, null,<a name="line.430"></a> +<span class="sourceLineNo">431</span> excludeOfflinedSplitParents);<a name="line.431"></a> <span class="sourceLineNo">432</span><a name="line.432"></a> -<span class="sourceLineNo">433</span> }<a name="line.433"></a> +<span class="sourceLineNo">433</span> return getListOfRegionInfos(result);<a name="line.433"></a> <span class="sourceLineNo">434</span><a name="line.434"></a> -<span class="sourceLineNo">435</span> /**<a name="line.435"></a> -<span class="sourceLineNo">436</span> * Gets all of the regions of the specified table. Do not use this method<a name="line.436"></a> -<span class="sourceLineNo">437</span> * to get meta table regions, use methods in MetaTableLocator instead.<a name="line.437"></a> -<span class="sourceLineNo">438</span> * @param connection connection we're using<a name="line.438"></a> -<span class="sourceLineNo">439</span> * @param tableName table we're looking for<a name="line.439"></a> -<span class="sourceLineNo">440</span> * @return Ordered list of {@link RegionInfo}.<a name="line.440"></a> -<span class="sourceLineNo">441</span> */<a name="line.441"></a> -<span class="sourceLineNo">442</span> public static List<RegionInfo> getTableRegions(Connection connection, TableName tableName)<a name="line.442"></a> -<span class="sourceLineNo">443</span> throws IOException {<a name="line.443"></a> -<span class="sourceLineNo">444</span> return getTableRegions(connection, tableName, false);<a name="line.444"></a> -<span class="sourceLineNo">445</span> }<a name="line.445"></a> -<span class="sourceLineNo">446</span><a name="line.446"></a> -<span class="sourceLineNo">447</span> /**<a name="line.447"></a> -<span class="sourceLineNo">448</span> * Gets all of the regions of the specified table. Do not use this method<a name="line.448"></a> -<span class="sourceLineNo">449</span> * to get meta table regions, use methods in MetaTableLocator instead.<a name="line.449"></a> -<span class="sourceLineNo">450</span> * @param connection connection we're using<a name="line.450"></a> -<span class="sourceLineNo">451</span> * @param tableName table we're looking for<a name="line.451"></a> -<span class="sourceLineNo">452</span> * @param excludeOfflinedSplitParents If true, do not include offlined split<a name="line.452"></a> -<span class="sourceLineNo">453</span> * parents in the return.<a name="line.453"></a> -<span class="sourceLineNo">454</span> * @return Ordered list of {@link RegionInfo}.<a name="line.454"></a> -<span class="sourceLineNo">455</span> */<a name="line.455"></a> -<span class="sourceLineNo">456</span> public static List<RegionInfo> getTableRegions(Connection connection, TableName tableName,<a name="line.456"></a> -<span class="sourceLineNo">457</span> final boolean excludeOfflinedSplitParents) throws IOException {<a name="line.457"></a> -<span class="sourceLineNo">458</span> List<Pair<RegionInfo, ServerName>> result =<a name="line.458"></a> -<span class="sourceLineNo">459</span> getTableRegionsAndLocations(connection, tableName, excludeOfflinedSplitParents);<a name="line.459"></a> -<span class="sourceLineNo">460</span> return getListOfRegionInfos(result);<a name="line.460"></a> -<span class="sourceLineNo">461</span> }<a name="line.461"></a> -<span class="sourceLineNo">462</span><a name="line.462"></a> -<span class="sourceLineNo">463</span> private static List<RegionInfo> getListOfRegionInfos(<a name="line.463"></a> -<span class="sourceLineNo">464</span> final List<Pair<RegionInfo, ServerName>> pairs) {<a name="line.464"></a> -<span class="sourceLineNo">465</span> if (pairs == null || pairs.isEmpty()) {<a name="line.465"></a> -<span class="sourceLineNo">466</span> return Collections.emptyList();<a name="line.466"></a> -<span class="sourceLineNo">467</span> }<a name="line.467"></a> -<span class="sourceLineNo">468</span> List<RegionInfo> result = new ArrayList<>(pairs.size());<a name="line.468"></a> -<span class="sourceLineNo">469</span> for (Pair<RegionInfo, ServerName> pair : pairs) {<a name="line.469"></a> -<span class="sourceLineNo">470</span> result.add(pair.getFirst());<a name="line.470"></a> -<span class="sourceLineNo">471</span> }<a name="line.471"></a> -<span class="sourceLineNo">472</span> return result;<a name="line.472"></a> -<span class="sourceLineNo">473</span> }<a name="line.473"></a> -<span class="sourceLineNo">474</span><a name="line.474"></a> -<span class="sourceLineNo">475</span> /**<a name="line.475"></a> -<span class="sourceLineNo">476</span> * @param tableName table we're working with<a name="line.476"></a> -<span class="sourceLineNo">477</span> * @return start row for scanning META according to query type<a name="line.477"></a> -<span class="sourceLineNo">478</span> */<a name="line.478"></a> -<span class="sourceLineNo">479</span> public static byte[] getTableStartRowForMeta(TableName tableName, QueryType type) {<a name="line.479"></a> -<span class="sourceLineNo">480</span> if (tableName == null) {<a name="line.480"></a> -<span class="sourceLineNo">481</span> return null;<a name="line.481"></a> -<span class="sourceLineNo">482</span> }<a name="line.482"></a> -<span class="sourceLineNo">483</span> switch (type) {<a name="line.483"></a> -<span class="sourceLineNo">484</span> case REGION:<a name="line.484"></a> -<span class="sourceLineNo">485</span> byte[] startRow = new byte[tableName.getName().length + 2];<a name="line.485"></a> -<span class="sourceLineNo">486</span> System.arraycopy(tableName.getName(), 0, startRow, 0, tableName.getName().length);<a name="line.486"></a> -<span class="sourceLineNo">487</span> startRow[startRow.length - 2] = HConstants.DELIMITER;<a name="line.487"></a> -<span class="sourceLineNo">488</span> startRow[startRow.length - 1] = HConstants.DELIMITER;<a name="line.488"></a> -<span class="sourceLineNo">489</span> return startRow;<a name="line.489"></a> -<span class="sourceLineNo">490</span> case ALL:<a name="line.490"></a> -<span class="sourceLineNo">491</span> case TABLE:<a name="line.491"></a> -<span class="sourceLineNo">492</span> default:<a name="line.492"></a> -<span class="sourceLineNo">493</span> return tableName.getName();<a name="line.493"></a> -<span class="sourceLineNo">494</span> }<a name="line.494"></a> -<span class="sourceLineNo">495</span> }<a name="line.495"></a> -<span class="sourceLineNo">496</span><a name="line.496"></a> -<span class="sourceLineNo">497</span> /**<a name="line.497"></a> -<span class="sourceLineNo">498</span> * @param tableName table we're working with<a name="line.498"></a> -<span class="sourceLineNo">499</span> * @return stop row for scanning META according to query type<a name="line.499"></a> -<span class="sourceLineNo">500</span> */<a name="line.500"></a> -<span class="sourceLineNo">501</span> public static byte[] getTableStopRowForMeta(TableName tableName, QueryType type) {<a name="line.501"></a> -<span class="sourceLineNo">502</span> if (tableName == null) {<a name="line.502"></a> -<span class="sourceLineNo">503</span> return null;<a name="line.503"></a> -<span class="sourceLineNo">504</span> }<a name="line.504"></a> -<span class="sourceLineNo">505</span> final byte[] stopRow;<a name="line.505"></a> -<span class="sourceLineNo">506</span> switch (type) {<a name="line.506"></a> -<span class="sourceLineNo">507</span> case REGION:<a name="line.507"></a> -<span class="sourceLineNo">508</span> stopRow = new byte[tableName.getName().length + 3];<a name="line.508"></a> -<span class="sourceLineNo">509</span> System.arraycopy(tableName.getName(), 0, stopRow, 0, tableName.getName().length);<a name="line.509"></a> -<span class="sourceLineNo">510</span> stopRow[stopRow.length - 3] = ' ';<a name="line.510"></a> -<span class="sourceLineNo">511</span> stopRow[stopRow.length - 2] = HConstants.DELIMITER;<a name="line.511"></a> -<span class="sourceLineNo">512</span> stopRow[stopRow.length - 1] = HConstants.DELIMITER;<a name="line.512"></a> -<span class="sourceLineNo">513</span> break;<a name="line.513"></a> -<span class="sourceLineNo">514</span> case ALL:<a name="line.514"></a> -<span class="sourceLineNo">515</span> case TABLE:<a name="line.515"></a> -<span class="sourceLineNo">516</span> default:<a name="line.516"></a> -<span class="sourceLineNo">517</span> stopRow = new byte[tableName.getName().length + 1];<a name="line.517"></a> -<span class="sourceLineNo">518</span> System.arraycopy(tableName.getName(), 0, stopRow, 0, tableName.getName().length);<a name="line.518"></a> -<span class="sourceLineNo">519</span> stopRow[stopRow.length - 1] = ' ';<a name="line.519"></a> -<span class="sourceLineNo">520</span> break;<a name="line.520"></a> -<span class="sourceLineNo">521</span> }<a name="line.521"></a> -<span class="sourceLineNo">522</span> return stopRow;<a name="line.522"></a> -<span class="sourceLineNo">523</span> }<a name="line.523"></a> -<span class="sourceLineNo">524</span><a name="line.524"></a> -<span class="sourceLineNo">525</span> /**<a name="line.525"></a> -<span class="sourceLineNo">526</span> * This method creates a Scan object that will only scan catalog rows that<a name="line.526"></a> -<span class="sourceLineNo">527</span> * belong to the specified table. It doesn't specify any columns.<a name="line.527"></a> -<span class="sourceLineNo">528</span> * This is a better alternative to just using a start row and scan until<a name="line.528"></a> -<span class="sourceLineNo">529</span> * it hits a new table since that requires parsing the HRI to get the table<a name="line.529"></a> -<span class="sourceLineNo">530</span> * name.<a name="line.530"></a> -<span class="sourceLineNo">531</span> * @param tableName bytes of table's name<a name="line.531"></a> -<span class="sourceLineNo">532</span> * @return configured Scan object<a name="line.532"></a> -<span class="sourceLineNo">533</span> */<a name="line.533"></a> -<span class="sourceLineNo">534</span> @Deprecated<a name="line.534"></a> -<span class="sourceLineNo">535</span> public static Scan getScanForTableName(Connection connection, TableName tableName) {<a name="line.535"></a> -<span class="sourceLineNo">536</span> // Start key is just the table name with delimiters<a name="line.536"></a> -<span class="sourceLineNo">537</span> byte[] startKey = getTableStartRowForMeta(tableName, QueryType.REGION);<a name="line.537"></a> -<span class="sourceLineNo">538</span> // Stop key appends the smallest possible char to the table name<a name="line.538"></a> -<span class="sourceLineNo">539</span> byte[] stopKey = getTableStopRowForMeta(tableName, QueryType.REGION);<a name="line.539"></a> -<span class="sourceLineNo">540</span><a name="line.540"></a> -<span class="sourceLineNo">541</span> Scan scan = getMetaScan(connection, -1);<a name="line.541"></a> -<span class="sourceLineNo">542</span> scan.setStartRow(startKey);<a name="line.542"></a> -<span class="sourceLineNo">543</span> scan.setStopRow(stopKey);<a name="line.543"></a> -<span class="sourceLineNo">544</span> return scan;<a name="line.544"></a> -<span class="sourceLineNo">545</span> }<a name="line.545"></a> -<span class="sourceLineNo">546</span><a name="line.546"></a> -<span class="sourceLineNo">547</span> private static Scan getMetaScan(Connection connection, int rowUpperLimit) {<a name="line.547"></a> -<span class="sourceLineNo">548</span> Scan scan = new Scan();<a name="line.548"></a> -<span class="sourceLineNo">549</span> int scannerCaching = connection.getConfiguration()<a name="line.549"></a> -<span class="sourceLineNo">550</span> .getInt(HConstants.HBASE_META_SCANNER_CACHING,<a name="line.550"></a> -<span class="sourceLineNo">551</span> HConstants.DEFAULT_HBASE_META_SCANNER_CACHING);<a name="line.551"></a> -<span class="sourceLineNo">552</span> if (connection.getConfiguration().getBoolean(HConstants.USE_META_REPLICAS,<a name="line.552"></a> -<span class="sourceLineNo">553</span> HConstants.DEFAULT_USE_META_REPLICAS)) {<a name="line.553"></a> -<span class="sourceLineNo">554</span> scan.setConsistency(Consistency.TIMELINE);<a name="line.554"></a> -<span class="sourceLineNo">555</span> }<a name="line.555"></a> -<span class="sourceLineNo">556</span> if (rowUpperLimit > 0) {<a name="line.556"></a> -<span class="sourceLineNo">557</span> scan.setLimit(rowUpperLimit);<a name="line.557"></a> -<span class="sourceLineNo">558</span> scan.setReadType(Scan.ReadType.PREAD);<a name="line.558"></a> -<span class="sourceLineNo">559</span>
<TRUNCATED>
