http://git-wip-us.apache.org/repos/asf/hbase-site/blob/ac54a6a8/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.html index c352c2f..0b7b31e 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.html @@ -40,792 +40,806 @@ <span class="sourceLineNo">032</span>import java.util.concurrent.Executors;<a name="line.32"></a> <span class="sourceLineNo">033</span>import java.util.concurrent.Future;<a name="line.33"></a> <span class="sourceLineNo">034</span>import java.util.concurrent.TimeUnit;<a name="line.34"></a> -<span class="sourceLineNo">035</span><a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.conf.Configuration;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.fs.FileSystem;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.fs.Path;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HConstants;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.ServerName;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.TableName;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.UnknownRegionException;<a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.44"></a> -<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.MasterSwitchType;<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.RegionInfo;<a name="line.47"></a> -<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.48"></a> -<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.49"></a> -<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.50"></a> -<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.51"></a> -<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.master.MasterCoprocessorHost;<a name="line.52"></a> -<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.master.MasterFileSystem;<a name="line.53"></a> -<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.54"></a> -<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.master.assignment.RegionStates.RegionStateNode;<a name="line.55"></a> -<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.master.normalizer.NormalizationPlan;<a name="line.56"></a> -<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure;<a name="line.57"></a> -<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.58"></a> -<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureUtil;<a name="line.59"></a> -<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.procedure2.ProcedureMetrics;<a name="line.60"></a> -<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.61"></a> -<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.quotas.QuotaExceededException;<a name="line.62"></a> -<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;<a name="line.63"></a> -<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.regionserver.HStore;<a name="line.64"></a> -<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.regionserver.HStoreFile;<a name="line.65"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.conf.Configuration;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.fs.FileSystem;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.fs.Path;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.HConstants;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.ServerName;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.TableName;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.UnknownRegionException;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.MasterSwitchType;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.master.MasterCoprocessorHost;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.master.MasterFileSystem;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.master.assignment.RegionStates.RegionStateNode;<a name="line.54"></a> +<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.master.normalizer.NormalizationPlan;<a name="line.55"></a> +<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure;<a name="line.56"></a> +<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.57"></a> +<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureUtil;<a name="line.58"></a> +<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.procedure2.ProcedureMetrics;<a name="line.59"></a> +<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.60"></a> +<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.quotas.QuotaExceededException;<a name="line.61"></a> +<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;<a name="line.62"></a> +<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.regionserver.HStore;<a name="line.63"></a> +<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.regionserver.HStoreFile;<a name="line.64"></a> +<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.regionserver.RegionSplitPolicy;<a name="line.65"></a> <span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.regionserver.StoreFileInfo;<a name="line.66"></a> <span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.67"></a> <span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.68"></a> <span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.69"></a> <span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.70"></a> <span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.71"></a> -<span class="sourceLineNo">072</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.72"></a> -<span class="sourceLineNo">073</span>import org.slf4j.Logger;<a name="line.73"></a> -<span class="sourceLineNo">074</span>import org.slf4j.LoggerFactory;<a name="line.74"></a> -<span class="sourceLineNo">075</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.75"></a> -<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.76"></a> -<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;<a name="line.77"></a> -<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.78"></a> -<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitTableRegionState;<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> * The procedure to split a region in a table.<a name="line.82"></a> -<span class="sourceLineNo">083</span> * Takes lock on the parent region.<a name="line.83"></a> -<span class="sourceLineNo">084</span> * It holds the lock for the life of the procedure.<a name="line.84"></a> -<span class="sourceLineNo">085</span> */<a name="line.85"></a> -<span class="sourceLineNo">086</span>@InterfaceAudience.Private<a name="line.86"></a> -<span class="sourceLineNo">087</span>public class SplitTableRegionProcedure<a name="line.87"></a> -<span class="sourceLineNo">088</span> extends AbstractStateMachineRegionProcedure<SplitTableRegionState> {<a name="line.88"></a> -<span class="sourceLineNo">089</span> private static final Logger LOG = LoggerFactory.getLogger(SplitTableRegionProcedure.class);<a name="line.89"></a> -<span class="sourceLineNo">090</span> private Boolean traceEnabled = null;<a name="line.90"></a> -<span class="sourceLineNo">091</span> private RegionInfo daughter_1_RI;<a name="line.91"></a> -<span class="sourceLineNo">092</span> private RegionInfo daughter_2_RI;<a name="line.92"></a> -<span class="sourceLineNo">093</span> private byte[] bestSplitRow;<a name="line.93"></a> -<span class="sourceLineNo">094</span><a name="line.94"></a> -<span class="sourceLineNo">095</span> public SplitTableRegionProcedure() {<a name="line.95"></a> -<span class="sourceLineNo">096</span> // Required by the Procedure framework to create the procedure on replay<a name="line.96"></a> -<span class="sourceLineNo">097</span> }<a name="line.97"></a> +<span class="sourceLineNo">072</span>import org.apache.hadoop.util.ReflectionUtils;<a name="line.72"></a> +<span class="sourceLineNo">073</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.73"></a> +<span class="sourceLineNo">074</span>import org.slf4j.Logger;<a name="line.74"></a> +<span class="sourceLineNo">075</span>import org.slf4j.LoggerFactory;<a name="line.75"></a> +<span class="sourceLineNo">076</span><a name="line.76"></a> +<span class="sourceLineNo">077</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.77"></a> +<span class="sourceLineNo">078</span><a name="line.78"></a> +<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.79"></a> +<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;<a name="line.80"></a> +<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.81"></a> +<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitTableRegionState;<a name="line.82"></a> +<span class="sourceLineNo">083</span><a name="line.83"></a> +<span class="sourceLineNo">084</span>/**<a name="line.84"></a> +<span class="sourceLineNo">085</span> * The procedure to split a region in a table.<a name="line.85"></a> +<span class="sourceLineNo">086</span> * Takes lock on the parent region.<a name="line.86"></a> +<span class="sourceLineNo">087</span> * It holds the lock for the life of the procedure.<a name="line.87"></a> +<span class="sourceLineNo">088</span> */<a name="line.88"></a> +<span class="sourceLineNo">089</span>@InterfaceAudience.Private<a name="line.89"></a> +<span class="sourceLineNo">090</span>public class SplitTableRegionProcedure<a name="line.90"></a> +<span class="sourceLineNo">091</span> extends AbstractStateMachineRegionProcedure<SplitTableRegionState> {<a name="line.91"></a> +<span class="sourceLineNo">092</span> private static final Logger LOG = LoggerFactory.getLogger(SplitTableRegionProcedure.class);<a name="line.92"></a> +<span class="sourceLineNo">093</span> private Boolean traceEnabled = null;<a name="line.93"></a> +<span class="sourceLineNo">094</span> private RegionInfo daughter_1_RI;<a name="line.94"></a> +<span class="sourceLineNo">095</span> private RegionInfo daughter_2_RI;<a name="line.95"></a> +<span class="sourceLineNo">096</span> private byte[] bestSplitRow;<a name="line.96"></a> +<span class="sourceLineNo">097</span> private RegionSplitPolicy splitPolicy;<a name="line.97"></a> <span class="sourceLineNo">098</span><a name="line.98"></a> -<span class="sourceLineNo">099</span> public SplitTableRegionProcedure(final MasterProcedureEnv env,<a name="line.99"></a> -<span class="sourceLineNo">100</span> final RegionInfo regionToSplit, final byte[] splitRow) throws IOException {<a name="line.100"></a> -<span class="sourceLineNo">101</span> super(env, regionToSplit);<a name="line.101"></a> -<span class="sourceLineNo">102</span> this.bestSplitRow = splitRow;<a name="line.102"></a> -<span class="sourceLineNo">103</span> checkSplittable(env, regionToSplit, bestSplitRow);<a name="line.103"></a> -<span class="sourceLineNo">104</span> final TableName table = regionToSplit.getTable();<a name="line.104"></a> -<span class="sourceLineNo">105</span> final long rid = getDaughterRegionIdTimestamp(regionToSplit);<a name="line.105"></a> -<span class="sourceLineNo">106</span> this.daughter_1_RI = RegionInfoBuilder.newBuilder(table)<a name="line.106"></a> -<span class="sourceLineNo">107</span> .setStartKey(regionToSplit.getStartKey())<a name="line.107"></a> -<span class="sourceLineNo">108</span> .setEndKey(bestSplitRow)<a name="line.108"></a> -<span class="sourceLineNo">109</span> .setSplit(false)<a name="line.109"></a> -<span class="sourceLineNo">110</span> .setRegionId(rid)<a name="line.110"></a> -<span class="sourceLineNo">111</span> .build();<a name="line.111"></a> -<span class="sourceLineNo">112</span> this.daughter_2_RI = RegionInfoBuilder.newBuilder(table)<a name="line.112"></a> -<span class="sourceLineNo">113</span> .setStartKey(bestSplitRow)<a name="line.113"></a> -<span class="sourceLineNo">114</span> .setEndKey(regionToSplit.getEndKey())<a name="line.114"></a> -<span class="sourceLineNo">115</span> .setSplit(false)<a name="line.115"></a> -<span class="sourceLineNo">116</span> .setRegionId(rid)<a name="line.116"></a> -<span class="sourceLineNo">117</span> .build();<a name="line.117"></a> -<span class="sourceLineNo">118</span> }<a name="line.118"></a> -<span class="sourceLineNo">119</span><a name="line.119"></a> -<span class="sourceLineNo">120</span> /**<a name="line.120"></a> -<span class="sourceLineNo">121</span> * Check whether the region is splittable<a name="line.121"></a> -<span class="sourceLineNo">122</span> * @param env MasterProcedureEnv<a name="line.122"></a> -<span class="sourceLineNo">123</span> * @param regionToSplit parent Region to be split<a name="line.123"></a> -<span class="sourceLineNo">124</span> * @param splitRow if splitRow is not specified, will first try to get bestSplitRow from RS<a name="line.124"></a> -<span class="sourceLineNo">125</span> * @throws IOException<a name="line.125"></a> -<span class="sourceLineNo">126</span> */<a name="line.126"></a> -<span class="sourceLineNo">127</span> private void checkSplittable(final MasterProcedureEnv env,<a name="line.127"></a> -<span class="sourceLineNo">128</span> final RegionInfo regionToSplit, final byte[] splitRow) throws IOException {<a name="line.128"></a> -<span class="sourceLineNo">129</span> // Ask the remote RS if this region is splittable.<a name="line.129"></a> -<span class="sourceLineNo">130</span> // If we get an IOE, report it along w/ the failure so can see why we are not splittable at this time.<a name="line.130"></a> -<span class="sourceLineNo">131</span> if(regionToSplit.getReplicaId() != RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.131"></a> -<span class="sourceLineNo">132</span> throw new IllegalArgumentException ("Can't invoke split on non-default regions directly");<a name="line.132"></a> -<span class="sourceLineNo">133</span> }<a name="line.133"></a> -<span class="sourceLineNo">134</span> RegionStateNode node =<a name="line.134"></a> -<span class="sourceLineNo">135</span> env.getAssignmentManager().getRegionStates().getRegionStateNode(getParentRegion());<a name="line.135"></a> -<span class="sourceLineNo">136</span> IOException splittableCheckIOE = null;<a name="line.136"></a> -<span class="sourceLineNo">137</span> boolean splittable = false;<a name="line.137"></a> -<span class="sourceLineNo">138</span> if (node != null) {<a name="line.138"></a> -<span class="sourceLineNo">139</span> try {<a name="line.139"></a> -<span class="sourceLineNo">140</span> if (bestSplitRow == null || bestSplitRow.length == 0) {<a name="line.140"></a> -<span class="sourceLineNo">141</span> LOG.info("splitKey isn't explicitly specified, " + " will try to find a best split key from RS");<a name="line.141"></a> -<span class="sourceLineNo">142</span> }<a name="line.142"></a> -<span class="sourceLineNo">143</span> // Always set bestSplitRow request as true here,<a name="line.143"></a> -<span class="sourceLineNo">144</span> // need to call Region#checkSplit to check it splittable or not<a name="line.144"></a> -<span class="sourceLineNo">145</span> GetRegionInfoResponse response =<a name="line.145"></a> -<span class="sourceLineNo">146</span> Util.getRegionInfoResponse(env, node.getRegionLocation(), node.getRegionInfo(), true);<a name="line.146"></a> -<span class="sourceLineNo">147</span> if(bestSplitRow == null || bestSplitRow.length == 0) {<a name="line.147"></a> -<span class="sourceLineNo">148</span> bestSplitRow = response.hasBestSplitRow() ? response.getBestSplitRow().toByteArray() : null;<a name="line.148"></a> -<span class="sourceLineNo">149</span> }<a name="line.149"></a> -<span class="sourceLineNo">150</span> splittable = response.hasSplittable() && response.getSplittable();<a name="line.150"></a> -<span class="sourceLineNo">151</span><a name="line.151"></a> -<span class="sourceLineNo">152</span> if (LOG.isDebugEnabled()) {<a name="line.152"></a> -<span class="sourceLineNo">153</span> LOG.debug("Splittable=" + splittable + " " + node.toShortString());<a name="line.153"></a> -<span class="sourceLineNo">154</span> }<a name="line.154"></a> -<span class="sourceLineNo">155</span> } catch (IOException e) {<a name="line.155"></a> -<span class="sourceLineNo">156</span> splittableCheckIOE = e;<a name="line.156"></a> -<span class="sourceLineNo">157</span> }<a name="line.157"></a> -<span class="sourceLineNo">158</span> }<a name="line.158"></a> -<span class="sourceLineNo">159</span><a name="line.159"></a> -<span class="sourceLineNo">160</span> if (!splittable) {<a name="line.160"></a> -<span class="sourceLineNo">161</span> IOException e = new IOException(regionToSplit.getShortNameToLog() + " NOT splittable");<a name="line.161"></a> -<span class="sourceLineNo">162</span> if (splittableCheckIOE != null) e.initCause(splittableCheckIOE);<a name="line.162"></a> -<span class="sourceLineNo">163</span> throw e;<a name="line.163"></a> -<span class="sourceLineNo">164</span> }<a name="line.164"></a> +<span class="sourceLineNo">099</span> public SplitTableRegionProcedure() {<a name="line.99"></a> +<span class="sourceLineNo">100</span> // Required by the Procedure framework to create the procedure on replay<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> +<span class="sourceLineNo">103</span> public SplitTableRegionProcedure(final MasterProcedureEnv env,<a name="line.103"></a> +<span class="sourceLineNo">104</span> final RegionInfo regionToSplit, final byte[] splitRow) throws IOException {<a name="line.104"></a> +<span class="sourceLineNo">105</span> super(env, regionToSplit);<a name="line.105"></a> +<span class="sourceLineNo">106</span> this.bestSplitRow = splitRow;<a name="line.106"></a> +<span class="sourceLineNo">107</span> checkSplittable(env, regionToSplit, bestSplitRow);<a name="line.107"></a> +<span class="sourceLineNo">108</span> final TableName table = regionToSplit.getTable();<a name="line.108"></a> +<span class="sourceLineNo">109</span> final long rid = getDaughterRegionIdTimestamp(regionToSplit);<a name="line.109"></a> +<span class="sourceLineNo">110</span> this.daughter_1_RI = RegionInfoBuilder.newBuilder(table)<a name="line.110"></a> +<span class="sourceLineNo">111</span> .setStartKey(regionToSplit.getStartKey())<a name="line.111"></a> +<span class="sourceLineNo">112</span> .setEndKey(bestSplitRow)<a name="line.112"></a> +<span class="sourceLineNo">113</span> .setSplit(false)<a name="line.113"></a> +<span class="sourceLineNo">114</span> .setRegionId(rid)<a name="line.114"></a> +<span class="sourceLineNo">115</span> .build();<a name="line.115"></a> +<span class="sourceLineNo">116</span> this.daughter_2_RI = RegionInfoBuilder.newBuilder(table)<a name="line.116"></a> +<span class="sourceLineNo">117</span> .setStartKey(bestSplitRow)<a name="line.117"></a> +<span class="sourceLineNo">118</span> .setEndKey(regionToSplit.getEndKey())<a name="line.118"></a> +<span class="sourceLineNo">119</span> .setSplit(false)<a name="line.119"></a> +<span class="sourceLineNo">120</span> .setRegionId(rid)<a name="line.120"></a> +<span class="sourceLineNo">121</span> .build();<a name="line.121"></a> +<span class="sourceLineNo">122</span> TableDescriptor htd = env.getMasterServices().getTableDescriptors().get(getTableName());<a name="line.122"></a> +<span class="sourceLineNo">123</span> if(htd.getRegionSplitPolicyClassName() != null) {<a name="line.123"></a> +<span class="sourceLineNo">124</span> // Since we don't have region reference here, creating the split policy instance without it.<a name="line.124"></a> +<span class="sourceLineNo">125</span> // This can be used to invoke methods which don't require Region reference. This instantiation<a name="line.125"></a> +<span class="sourceLineNo">126</span> // of a class on Master-side though it only makes sense on the RegionServer-side is<a name="line.126"></a> +<span class="sourceLineNo">127</span> // for Phoenix Local Indexing. Refer HBASE-12583 for more information.<a name="line.127"></a> +<span class="sourceLineNo">128</span> Class<? extends RegionSplitPolicy> clazz =<a name="line.128"></a> +<span class="sourceLineNo">129</span> RegionSplitPolicy.getSplitPolicyClass(htd, env.getMasterConfiguration());<a name="line.129"></a> +<span class="sourceLineNo">130</span> this.splitPolicy = ReflectionUtils.newInstance(clazz, env.getMasterConfiguration());<a name="line.130"></a> +<span class="sourceLineNo">131</span> }<a name="line.131"></a> +<span class="sourceLineNo">132</span> }<a name="line.132"></a> +<span class="sourceLineNo">133</span><a name="line.133"></a> +<span class="sourceLineNo">134</span> /**<a name="line.134"></a> +<span class="sourceLineNo">135</span> * Check whether the region is splittable<a name="line.135"></a> +<span class="sourceLineNo">136</span> * @param env MasterProcedureEnv<a name="line.136"></a> +<span class="sourceLineNo">137</span> * @param regionToSplit parent Region to be split<a name="line.137"></a> +<span class="sourceLineNo">138</span> * @param splitRow if splitRow is not specified, will first try to get bestSplitRow from RS<a name="line.138"></a> +<span class="sourceLineNo">139</span> * @throws IOException<a name="line.139"></a> +<span class="sourceLineNo">140</span> */<a name="line.140"></a> +<span class="sourceLineNo">141</span> private void checkSplittable(final MasterProcedureEnv env,<a name="line.141"></a> +<span class="sourceLineNo">142</span> final RegionInfo regionToSplit, final byte[] splitRow) throws IOException {<a name="line.142"></a> +<span class="sourceLineNo">143</span> // Ask the remote RS if this region is splittable.<a name="line.143"></a> +<span class="sourceLineNo">144</span> // If we get an IOE, report it along w/ the failure so can see why we are not splittable at this time.<a name="line.144"></a> +<span class="sourceLineNo">145</span> if(regionToSplit.getReplicaId() != RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.145"></a> +<span class="sourceLineNo">146</span> throw new IllegalArgumentException ("Can't invoke split on non-default regions directly");<a name="line.146"></a> +<span class="sourceLineNo">147</span> }<a name="line.147"></a> +<span class="sourceLineNo">148</span> RegionStateNode node =<a name="line.148"></a> +<span class="sourceLineNo">149</span> env.getAssignmentManager().getRegionStates().getRegionStateNode(getParentRegion());<a name="line.149"></a> +<span class="sourceLineNo">150</span> IOException splittableCheckIOE = null;<a name="line.150"></a> +<span class="sourceLineNo">151</span> boolean splittable = false;<a name="line.151"></a> +<span class="sourceLineNo">152</span> if (node != null) {<a name="line.152"></a> +<span class="sourceLineNo">153</span> try {<a name="line.153"></a> +<span class="sourceLineNo">154</span> if (bestSplitRow == null || bestSplitRow.length == 0) {<a name="line.154"></a> +<span class="sourceLineNo">155</span> LOG.info("splitKey isn't explicitly specified, " + " will try to find a best split key from RS");<a name="line.155"></a> +<span class="sourceLineNo">156</span> }<a name="line.156"></a> +<span class="sourceLineNo">157</span> // Always set bestSplitRow request as true here,<a name="line.157"></a> +<span class="sourceLineNo">158</span> // need to call Region#checkSplit to check it splittable or not<a name="line.158"></a> +<span class="sourceLineNo">159</span> GetRegionInfoResponse response =<a name="line.159"></a> +<span class="sourceLineNo">160</span> Util.getRegionInfoResponse(env, node.getRegionLocation(), node.getRegionInfo(), true);<a name="line.160"></a> +<span class="sourceLineNo">161</span> if(bestSplitRow == null || bestSplitRow.length == 0) {<a name="line.161"></a> +<span class="sourceLineNo">162</span> bestSplitRow = response.hasBestSplitRow() ? response.getBestSplitRow().toByteArray() : null;<a name="line.162"></a> +<span class="sourceLineNo">163</span> }<a name="line.163"></a> +<span class="sourceLineNo">164</span> splittable = response.hasSplittable() && response.getSplittable();<a name="line.164"></a> <span class="sourceLineNo">165</span><a name="line.165"></a> -<span class="sourceLineNo">166</span> if(bestSplitRow == null || bestSplitRow.length == 0) {<a name="line.166"></a> -<span class="sourceLineNo">167</span> throw new DoNotRetryIOException("Region not splittable because bestSplitPoint = null, "<a name="line.167"></a> -<span class="sourceLineNo">168</span> + "maybe table is too small for auto split. 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class="sourceLineNo">212</span> break;<a name="line.212"></a> -<span class="sourceLineNo">213</span> } else {<a name="line.213"></a> -<span class="sourceLineNo">214</span> assert isFailed() : "split region should have an exception here";<a name="line.214"></a> -<span class="sourceLineNo">215</span> return Flow.NO_MORE_STATE;<a name="line.215"></a> -<span class="sourceLineNo">216</span> }<a name="line.216"></a> -<span class="sourceLineNo">217</span> case SPLIT_TABLE_REGION_PRE_OPERATION:<a name="line.217"></a> -<span class="sourceLineNo">218</span> preSplitRegion(env);<a name="line.218"></a> -<span class="sourceLineNo">219</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_CLOSE_PARENT_REGION);<a name="line.219"></a> -<span class="sourceLineNo">220</span> break;<a name="line.220"></a> -<span class="sourceLineNo">221</span> case SPLIT_TABLE_REGION_CLOSE_PARENT_REGION:<a name="line.221"></a> -<span class="sourceLineNo">222</span> addChildProcedure(createUnassignProcedures(env, getRegionReplication(env)));<a name="line.222"></a> -<span class="sourceLineNo">223</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_CREATE_DAUGHTER_REGIONS);<a name="line.223"></a> -<span class="sourceLineNo">224</span> break;<a name="line.224"></a> -<span class="sourceLineNo">225</span> case SPLIT_TABLE_REGION_CREATE_DAUGHTER_REGIONS:<a name="line.225"></a> -<span class="sourceLineNo">226</span> createDaughterRegions(env);<a name="line.226"></a> -<span class="sourceLineNo">227</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_PRE_OPERATION_BEFORE_META);<a name="line.227"></a> -<span class="sourceLineNo">228</span> break;<a name="line.228"></a> -<span class="sourceLineNo">229</span> case SPLIT_TABLE_REGION_PRE_OPERATION_BEFORE_META:<a name="line.229"></a> -<span class="sourceLineNo">230</span> preSplitRegionBeforeMETA(env);<a name="line.230"></a> -<span class="sourceLineNo">231</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_UPDATE_META);<a name="line.231"></a> -<span class="sourceLineNo">232</span> break;<a name="line.232"></a> -<span class="sourceLineNo">233</span> case SPLIT_TABLE_REGION_UPDATE_META:<a name="line.233"></a> -<span class="sourceLineNo">234</span> updateMetaForDaughterRegions(env);<a name="line.234"></a> -<span class="sourceLineNo">235</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_PRE_OPERATION_AFTER_META);<a name="line.235"></a> -<span class="sourceLineNo">236</span> break;<a name="line.236"></a> -<span class="sourceLineNo">237</span> case SPLIT_TABLE_REGION_PRE_OPERATION_AFTER_META:<a name="line.237"></a> -<span class="sourceLineNo">238</span> preSplitRegionAfterMETA(env);<a name="line.238"></a> -<span class="sourceLineNo">239</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_OPEN_CHILD_REGIONS);<a name="line.239"></a> -<span class="sourceLineNo">240</span> break;<a name="line.240"></a> -<span class="sourceLineNo">241</span> case SPLIT_TABLE_REGION_OPEN_CHILD_REGIONS:<a 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-<span class="sourceLineNo">252</span> String msg = "Error trying to split region " + getParentRegion().getEncodedName() + " in the table "<a name="line.252"></a> -<span class="sourceLineNo">253</span> + getTableName() + " (in state=" + state + ")";<a name="line.253"></a> -<span class="sourceLineNo">254</span> if (!isRollbackSupported(state)) {<a name="line.254"></a> -<span class="sourceLineNo">255</span> // We reach a state that cannot be rolled back. 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default:<a name="line.325"></a> -<span class="sourceLineNo">326</span> break;<a name="line.326"></a> -<span class="sourceLineNo">327</span> }<a name="line.327"></a> -<span class="sourceLineNo">328</span> return true;<a name="line.328"></a> -<span class="sourceLineNo">329</span> }<a name="line.329"></a> -<span class="sourceLineNo">330</span><a name="line.330"></a> -<span class="sourceLineNo">331</span> @Override<a name="line.331"></a> -<span class="sourceLineNo">332</span> protected SplitTableRegionState getState(final int stateId) {<a name="line.332"></a> -<span class="sourceLineNo">333</span> return SplitTableRegionState.forNumber(stateId);<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> @Override<a name="line.336"></a> -<span class="sourceLineNo">337</span> protected int getStateId(final SplitTableRegionState state) {<a name="line.337"></a> 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+<span class="sourceLineNo">166</span> if (LOG.isDebugEnabled()) {<a name="line.166"></a> +<span class="sourceLineNo">167</span> LOG.debug("Splittable=" + splittable + " " + node.toShortString());<a name="line.167"></a> +<span class="sourceLineNo">168</span> }<a name="line.168"></a> +<span class="sourceLineNo">169</span> } catch (IOException e) {<a name="line.169"></a> +<span class="sourceLineNo">170</span> splittableCheckIOE = e;<a name="line.170"></a> +<span class="sourceLineNo">171</span> }<a name="line.171"></a> +<span class="sourceLineNo">172</span> }<a name="line.172"></a> +<span class="sourceLineNo">173</span><a name="line.173"></a> +<span class="sourceLineNo">174</span> if (!splittable) {<a name="line.174"></a> +<span class="sourceLineNo">175</span> IOException e = new IOException(regionToSplit.getShortNameToLog() + " NOT splittable");<a name="line.175"></a> +<span class="sourceLineNo">176</span> if (splittableCheckIOE != null) e.initCause(splittableCheckIOE);<a name="line.176"></a> +<span class="sourceLineNo">177</span> throw e;<a name="line.177"></a> +<span class="sourceLineNo">178</span> }<a name="line.178"></a> +<span class="sourceLineNo">179</span><a name="line.179"></a> +<span class="sourceLineNo">180</span> if(bestSplitRow == null || bestSplitRow.length == 0) {<a name="line.180"></a> +<span class="sourceLineNo">181</span> throw new DoNotRetryIOException("Region not splittable because bestSplitPoint = null, "<a name="line.181"></a> +<span class="sourceLineNo">182</span> + "maybe table is too small for auto split. For force split, try specifying split row");<a name="line.182"></a> +<span class="sourceLineNo">183</span> }<a name="line.183"></a> +<span class="sourceLineNo">184</span><a name="line.184"></a> +<span class="sourceLineNo">185</span> if (Bytes.equals(regionToSplit.getStartKey(), bestSplitRow)) {<a name="line.185"></a> +<span class="sourceLineNo">186</span> throw new DoNotRetryIOException(<a name="line.186"></a> +<span class="sourceLineNo">187</span> "Split row is equal to startkey: " + Bytes.toStringBinary(splitRow));<a name="line.187"></a> +<span class="sourceLineNo">188</span> }<a name="line.188"></a> +<span class="sourceLineNo">189</span><a name="line.189"></a> +<span class="sourceLineNo">190</span> if (!regionToSplit.containsRow(bestSplitRow)) {<a name="line.190"></a> +<span class="sourceLineNo">191</span> throw new DoNotRetryIOException(<a name="line.191"></a> +<span class="sourceLineNo">192</span> "Split row is not inside region key range splitKey:" + Bytes.toStringBinary(splitRow) +<a name="line.192"></a> +<span class="sourceLineNo">193</span> " region: " + regionToSplit);<a name="line.193"></a> +<span class="sourceLineNo">194</span> }<a name="line.194"></a> +<span class="sourceLineNo">195</span> }<a name="line.195"></a> +<span class="sourceLineNo">196</span><a name="line.196"></a> +<span class="sourceLineNo">197</span> /**<a name="line.197"></a> +<span class="sourceLineNo">198</span> * Calculate daughter regionid to use.<a name="line.198"></a> +<span class="sourceLineNo">199</span> * @param hri Parent {@link RegionInfo}<a name="line.199"></a> +<span class="sourceLineNo">200</span> * @return Daughter region id (timestamp) to use.<a name="line.200"></a> +<span class="sourceLineNo">201</span> */<a name="line.201"></a> +<span class="sourceLineNo">202</span> private static long getDaughterRegionIdTimestamp(final RegionInfo hri) {<a name="line.202"></a> +<span class="sourceLineNo">203</span> long rid = EnvironmentEdgeManager.currentTime();<a name="line.203"></a> +<span class="sourceLineNo">204</span> // Regionid is timestamp. Can't be less than that of parent else will insert<a name="line.204"></a> +<span class="sourceLineNo">205</span> // at wrong location in hbase:meta (See HBASE-710).<a name="line.205"></a> +<span class="sourceLineNo">206</span> if (rid < hri.getRegionId()) {<a name="line.206"></a> +<span class="sourceLineNo">207</span> LOG.warn("Clock skew; parent regions id is " + hri.getRegionId() +<a name="line.207"></a> +<span class="sourceLineNo">208</span> " but current time here is " + rid);<a name="line.208"></a> +<span class="sourceLineNo">209</span> rid = hri.getRegionId() + 1;<a name="line.209"></a> +<span class="sourceLineNo">210</span> }<a name="line.210"></a> +<span class="sourceLineNo">211</span> return rid;<a name="line.211"></a> +<span class="sourceLineNo">212</span> }<a name="line.212"></a> +<span class="sourceLineNo">213</span><a name="line.213"></a> +<span class="sourceLineNo">214</span> @Override<a name="line.214"></a> +<span class="sourceLineNo">215</span> protected Flow executeFromState(final MasterProcedureEnv env, final SplitTableRegionState state)<a name="line.215"></a> +<span class="sourceLineNo">216</span> throws InterruptedException {<a name="line.216"></a> +<span class="sourceLineNo">217</span> if (isTraceEnabled()) {<a name="line.217"></a> +<span class="sourceLineNo">218</span> LOG.trace(this + " execute state=" + state);<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> try {<a name="line.221"></a> +<span class="sourceLineNo">222</span> switch (state) {<a name="line.222"></a> +<span class="sourceLineNo">223</span> case SPLIT_TABLE_REGION_PREPARE:<a name="line.223"></a> +<span class="sourceLineNo">224</span> if (prepareSplitRegion(env)) {<a name="line.224"></a> +<span class="sourceLineNo">225</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_PRE_OPERATION);<a name="line.225"></a> +<span class="sourceLineNo">226</span> break;<a name="line.226"></a> +<span class="sourceLineNo">227</span> } else {<a name="line.227"></a> +<span class="sourceLineNo">228</span> assert isFailed() : "split region should have an exception here";<a name="line.228"></a> +<span class="sourceLineNo">229</span> return Flow.NO_MORE_STATE;<a name="line.229"></a> +<span class="sourceLineNo">230</span> }<a name="line.230"></a> +<span class="sourceLineNo">231</span> case SPLIT_TABLE_REGION_PRE_OPERATION:<a name="line.231"></a> +<span class="sourceLineNo">232</span> preSplitRegion(env);<a name="line.232"></a> +<span class="sourceLineNo">233</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_CLOSE_PARENT_REGION);<a name="line.233"></a> +<span class="sourceLineNo">234</span> break;<a name="line.234"></a> +<span class="sourceLineNo">235</span> case SPLIT_TABLE_REGION_CLOSE_PARENT_REGION:<a name="line.235"></a> +<span class="sourceLineNo">236</span> addChildProcedure(createUnassignProcedures(env, getRegionReplication(env)));<a name="line.236"></a> +<span class="sourceLineNo">237</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_CREATE_DAUGHTER_REGIONS);<a name="line.237"></a> +<span class="sourceLineNo">238</span> break;<a name="line.238"></a> +<span class="sourceLineNo">239</span> case SPLIT_TABLE_REGION_CREATE_DAUGHTER_REGIONS:<a name="line.239"></a> +<span class="sourceLineNo">240</span> createDaughterRegions(env);<a name="line.240"></a> +<span class="sourceLineNo">241</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_PRE_OPERATION_BEFORE_META);<a name="line.241"></a> +<span class="sourceLineNo">242</span> break;<a name="line.242"></a> +<span class="sourceLineNo">243</span> case SPLIT_TABLE_REGION_PRE_OPERATION_BEFORE_META:<a name="line.243"></a> +<span class="sourceLineNo">244</span> preSplitRegionBeforeMETA(env);<a name="line.244"></a> +<span class="sourceLineNo">245</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_UPDATE_META);<a name="line.245"></a> +<span class="sourceLineNo">246</span> break;<a name="line.246"></a> +<span class="sourceLineNo">247</span> case SPLIT_TABLE_REGION_UPDATE_META:<a name="line.247"></a> +<span class="sourceLineNo">248</span> updateMetaForDaughterRegions(env);<a name="line.248"></a> +<span class="sourceLineNo">249</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_PRE_OPERATION_AFTER_META);<a name="line.249"></a> +<span class="sourceLineNo">250</span> break;<a name="line.250"></a> +<span class="sourceLineNo">251</span> case SPLIT_TABLE_REGION_PRE_OPERATION_AFTER_META:<a name="line.251"></a> +<span class="sourceLineNo">252</span> preSplitRegionAfterMETA(env);<a name="line.252"></a> +<span class="sourceLineNo">253</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_OPEN_CHILD_REGIONS);<a name="line.253"></a> +<span class="sourceLineNo">254</span> break;<a name="line.254"></a> +<span class="sourceLineNo">255</span> case SPLIT_TABLE_REGION_OPEN_CHILD_REGIONS:<a name="line.255"></a> +<span class="sourceLineNo">256</span> addChildProcedure(createAssignProcedures(env, getRegionReplication(env)));<a name="line.256"></a> +<span class="sourceLineNo">257</span> setNextState(SplitTableRegionState.SPLIT_TABLE_REGION_POST_OPERATION);<a name="line.257"></a> +<span class="sourceLineNo">258</span> break;<a name="line.258"></a> +<span class="sourceLineNo">259</span> case SPLIT_TABLE_REGION_POST_OPERATION:<a name="line.259"></a> +<span class="sourceLineNo">260</span> postSplitRegion(env);<a name="line.260"></a> +<span class="sourceLineNo">261</span> return Flow.NO_MORE_STATE;<a name="line.261"></a> +<span class="sourceLineNo">262</span> default:<a name="line.262"></a> +<span class="sourceLineNo">263</span> throw new UnsupportedOperationException(this + " unhandled state=" + state);<a name="line.263"></a> +<span class="sourceLineNo">264</span> }<a name="line.264"></a> +<span class="sourceLineNo">265</span> } catch (IOException e) {<a name="line.265"></a> +<span class="sourceLineNo">266</span> String msg = "Error trying to split region " + getParentRegion().getEncodedName() + " in the table "<a name="line.266"></a> +<span class="sourceLineNo">267</span> + getTableName() + " (in state=" + state + ")";<a name="line.267"></a> +<span class="sourceLineNo">268</span> if (!isRollbackSupported(state)) {<a name="line.268"></a> +<span class="sourceLineNo">269</span> // We reach a state that cannot be rolled back. We just need to keep retry.<a name="line.269"></a> +<span class="sourceLineNo">270</span> LOG.warn(msg, e);<a name="line.270"></a> +<span class="sourceLineNo">271</span> } else {<a name="line.271"></a> +<span class="sourceLineNo">272</span> LOG.error(msg, e);<a name="line.272"></a> +<span class="sourceLineNo">273</span> setFailure(e);<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> // if split fails, need to call ((HRegion)parent).clearSplit() when it is a force split<a name="line.276"></a> +<span class="sourceLineNo">277</span> return Flow.HAS_MORE_STATE;<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> * To rollback {@link SplitTableRegionProcedure}, an AssignProcedure is asynchronously<a name="line.281"></a> +<span class="sourceLineNo">282</span> * submitted for parent region to be split (rollback doesn't wait on the completion of the<a name="line.282"></a> +<span class="sourceLineNo">283</span> * AssignProcedure) . This can be improved by changing rollback() to support sub-procedures.<a name="line.283"></a> +<span class="sourceLineNo">284</span> * See HBASE-19851 for details.<a name="line.284"></a> +<span class="sourceLineNo">285</span> */<a name="line.285"></a> +<span class="sourceLineNo">286</span> @Override<a name="line.286"></a> +<span class="sourceLineNo">287</span> protected void rollbackState(final MasterProcedureEnv env, final SplitTableRegionState state)<a name="line.287"></a> +<span class="sourceLineNo">288</span> throws IOException, InterruptedException {<a name="line.288"></a> +<span class="sourceLineNo">289</span> if (isTraceEnabled()) {<a name="line.289"></a> +<span class="sourceLineNo">290</span> LOG.trace(this + " rollback state=" + state);<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> try {<a name="line.293"></a> +<span class="sourceLineNo">294</span> switch (state) {<a name="line.294"></a> +<span class="sourceLineNo">295</span> case SPLIT_TABLE_REGION_POST_OPERATION:<a name="line.295"></a> +<span class="sourceLineNo">296</span> case SPLIT_TABLE_REGION_OPEN_CHILD_REGIONS:<a name="line.296"></a> +<span class="sourceLineNo">297</span> case SPLIT_TABLE_REGION_PRE_OPERATION_AFTER_META:<a name="line.297"></a> +<span class="sourceLineNo">298</span> case SPLIT_TABLE_REGION_UPDATE_META:<a name="line.298"></a> +<span class="sourceLineNo">299</span> // PONR<a name="line.299"></a> +<span class="sourceLineNo">300</span> throw new UnsupportedOperationException(this + " unhandled state=" + state);<a name="line.300"></a> +<span class="sourceLineNo">301</span> case SPLIT_TABLE_REGION_PRE_OPERATION_BEFORE_META:<a name="line.301"></a> +<span class="sourceLineNo">302</span> break;<a name="line.302"></a> +<span class="sourceLineNo">303</span> case SPLIT_TABLE_REGION_CREATE_DAUGHTER_REGIONS:<a name="line.303"></a> +<span class="sourceLineNo">304</span> // Doing nothing, as re-open parent region would clean up daughter region directories.<a name="line.304"></a> +<span class="sourceLineNo">305</span> break;<a name="line.305"></a> +<span class="sourceLineNo">306</span> case SPLIT_TABLE_REGION_CLOSE_PARENT_REGION:<a name="line.306"></a> +<span class="sourceLineNo">307</span> openParentRegion(env);<a name="line.307"></a> +<span class="sourceLineNo">308</span> break;<a name="line.308"></a> +<span class="sourceLineNo">309</span> case SPLIT_TABLE_REGION_PRE_OPERATION:<a name="line.309"></a> +<span class="sourceLineNo">310</span> postRollBackSplitRegion(env);<a name="line.310"></a> +<span class="sourceLineNo">311</span> break;<a name="line.311"></a> +<span class="sourceLineNo">312</span> case SPLIT_TABLE_REGION_PREPARE:<a name="line.312"></a> +<span class="sourceLineNo">313</span> break; // nothing to do<a name="line.313"></a> +<span class="sourceLineNo">314</span> default:<a name="line.314"></a> +<span class="sourceLineNo">315</span> throw new UnsupportedOperationException(this + " unhandled state=" + state);<a name="line.315"></a> +<span class="sourceLineNo">316</span> }<a name="line.316"></a> +<span class="sourceLineNo">317</span> } catch (IOException e) {<a name="line.317"></a> +<span class="sourceLineNo">318</span> // This will be retried. Unless there is a bug in the code,<a name="line.318"></a> +<span class="sourceLineNo">319</span> // this should be just a "temporary error" (e.g. network down)<a name="line.319"></a> +<span class="sourceLineNo">320</span> LOG.warn("pid=" + getProcId() + " failed rollback attempt step " + state +<a name="line.320"></a> +<span class="sourceLineNo">321</span> " for splitting the region "<a name="line.321"></a> +<span class="sourceLineNo">322</span> + getParentRegion().getEncodedName() + " in table " + getTableName(), e);<a name="line.322"></a> +<span class="sourceLineNo">323</span> throw e;<a name="line.323"></a> +<span class="sourceLineNo">324</span> }<a name="line.324"></a> +<span class="sourceLineNo">325</span> }<a name="line.325"></a> +<span class="sourceLineNo">326</span><a name="line.326"></a> +<span class="sourceLineNo">327</span> /*<a name="line.327"></a> +<span class="sourceLineNo">328</span> * Check whether we are in the state that can be rollback<a name="line.328"></a> +<span class="sourceLineNo">329</span> */<a name="line.329"></a> +<span class="sourceLineNo">330</span> @Override<a name="line.330"></a> +<span class="sourceLineNo">331</span> protected boolean isRollbackSupported(final SplitTableRegionState state) {<a name="line.331"></a> +<span class="sourceLineNo">332</span> switch (state) {<a name="line.332"></a> +<span class="sourceLineNo">333</span> case SPLIT_TABLE_REGION_POST_OPERATION:<a name="line.333"></a> +<span class="sourceLineNo">334</span> case SPLIT_TABLE_REGION_OPEN_CHILD_REGIONS:<a name="line.334"></a> +<span class="sourceLineNo">335</span> case SPLIT_TABLE_REGION_PRE_OPERATION_AFTER_META:<a name="line.335"></a> +<span class="sourceLineNo">336</span> case SPLIT_TABLE_REGION_UPDATE_META:<a name="line.336"></a> +<span class="sourceLineNo">337</span> // It is not safe to rollback if we reach to these states.<a name="line.337"></a> +<span class="sourceLineNo">338</span> return false;<a name="line.338"></a> +<span class="sourceLineNo">339</span> default:<a name="line.339"></a> +<span class="sourceLineNo">340</span> break;<a name="line.340"></a> +<span class="sourceLineNo">341</span> }<a name="line.341"></a> +<span class="sourceLineNo">342</span> return true;<a name="line.342"></a> +<span class="sourceLineNo">343</span> }<a name="line.343"></a> +<span class="sourceLineNo">344</span><a name="line.344"></a> +<span class="sourceLineNo">345</span> @Override<a name="line.345"></a> +<span class="sourceLineNo">346</span> protected SplitTableRegionState getState(final int stateId) {<a name="line.346"></a> +<span class="sourceLineNo">347</span> return SplitTableRegionState.forNumber(stateId);<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> @Override<a name="line.350"></a> +<span class="sourceLineNo">351</span> protected int getStateId(final SplitTableRegionState state) {<a name="line.351"></a> +<span class="sourceLineNo">352</span> return state.getNumber();<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> @Override<a name="line.355"></a> +<span class="sourceLineNo">356</span> protected SplitTableRegionState getInitialState() {<a name="line.356"></a> +<span class="sourceLineNo">357</span> return SplitTableRegionState.SPLIT_TABLE_REGION_PREPARE;<a name="line.357"></a> <span class="sourceLineNo">358</span> }<a name="line.358"></a> <span class="sourceLineNo">359</span><a name="line.359"></a> <span class="sourceLineNo">360</span> @Override<a name="line.360"></a> -<span class="sourceLineNo">361</span> protected void deserializeStateData(ProcedureStateSerializer serializer)<a name="line.361"></a> +<span class="sourceLineNo">361</span> protected void serializeStateData(ProcedureStateSerializer serializer)<a name="line.361"></a> <span class="sourceLineNo">362</span> throws IOException {<a name="line.362"></a> -<span class="sourceLineNo">363</span> super.deserializeStateData(serializer);<a name="line.363"></a> +<span class="sourceLineNo">363</span> super.serializeStateData(serializer);<a name="line.363"></a> <span class="sourceLineNo">364</span><a name="line.364"></a> -<span class="sourceLineNo">365</span> final MasterProcedureProtos.SplitTableRegionStateData splitTableRegionsMsg =<a name="line.365"></a> -<span class="sourceLineNo">366</span> serializer.deserialize(MasterProcedureProtos.SplitTableRegionStateData.class);<a name="line.366"></a> -<span class="sourceLineNo">367</span> setUser(MasterProcedureUtil.toUserInfo(splitTableRegionsMsg.getUserInfo()));<a name="line.367"></a> -<span class="sourceLineNo">368</span> setRegion(ProtobufUtil.toRegionInfo(splitTableRegionsMsg.getParentRegionInfo()));<a name="line.368"></a> -<span class="sourceLineNo">369</span> assert(splitTableRegionsMsg.getChildRegionInfoCount() == 2);<a name="line.369"></a> -<span class="sourceLineNo">370</span> daughter_1_RI = ProtobufUtil.toRegionInfo(splitTableRegionsMsg.getChildRegionInfo(0));<a name="line.370"></a> -<span class="sourceLineNo">371</span> daughter_2_RI = ProtobufUtil.toRegionInfo(splitTableRegionsMsg.getChildRegionInfo(1));<a name="line.371"></a> +<span class="sourceLineNo">365</span> final MasterProcedureProtos.SplitTableRegionStateData.Builder splitTableRegionMsg =<a name="line.365"></a> +<span class="sourceLineNo">366</span> MasterProcedureProtos.SplitTableRegionStateData.newBuilder()<a name="line.366"></a> +<span class="sourceLineNo">367</span> .setUserInfo(MasterProcedureUtil.toProtoUserInfo(getUser()))<a name="line.367"></a> +<span class="sourceLineNo">368</span> .setParentRegionInfo(ProtobufUtil.toRegionInfo(getRegion()))<a name="line.368"></a> +<span class="sourceLineNo">369</span> .addChildRegionInfo(ProtobufUtil.toRegionInfo(daughter_1_RI))<a name="line.369"></a> +<span class="sourceLineNo">370</span> .addChildRegionInfo(ProtobufUtil.toRegionInfo(daughter_2_RI));<a name="line.370"></a> +<span class="sourceLineNo">371</span> serializer.serialize(splitTableRegionMsg.build());<a name="line.371"></a> <span class="sourceLineNo">372</span> }<a name="line.372"></a> <span class="sourceLineNo">373</span><a name="line.373"></a> <span class="sourceLineNo">374</span> @Override<a name="line.374"></a> -<span class="sourceLineNo">375</span> public void toStringClassDetails(StringBuilder sb) {<a name="line.375"></a> -<span class="sourceLineNo">376</span> sb.append(getClass().getSimpleName());<a name="line.376"></a> -<span class="sourceLineNo">377</span> sb.append(" table=");<a name="line.377"></a> -<span class="sourceLineNo">378</span> sb.append(getTableName());<a name="line.378"></a> -<span class="sourceLineNo">379</span> sb.append(", parent=");<a name="line.379"></a> -<span class="sourceLineNo">380</span> sb.append(getParentRegion().getShortNameToLog());<a 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name="line.378"></a> +<span class="sourceLineNo">379</span> final MasterProcedureProtos.SplitTableRegionStateData splitTableRegionsMsg =<a name="line.379"></a> +<span class="sourceLineNo">380</span> serializer.deserialize(MasterProcedureProtos.SplitTableRegionStateData.class);<a name="line.380"></a> +<span class="sourceLineNo">381</span> setUser(MasterProcedureUtil.toUserInfo(splitTableRegionsMsg.getUserInfo()));<a name="line.381"></a> +<span class="sourceLineNo">382</span> setRegion(ProtobufUtil.toRegionInfo(splitTableRegionsMsg.getParentRegionInfo()));<a name="line.382"></a> +<span class="sourceLineNo">383</span> assert(splitTableRegionsMsg.getChildRegionInfoCount() == 2);<a name="line.383"></a> +<span class="sourceLineNo">384</span> daughter_1_RI = ProtobufUtil.toRegionInfo(splitTableRegionsMsg.getChildRegionInfo(0));<a name="line.384"></a> +<span class="sourceLineNo">385</span> daughter_2_RI = ProtobufUtil.toRegionInfo(splitTableRegionsMsg.getChildRegionInfo(1));<a name="line.385"></a> +<span class="sourceLineNo">386</span> }<a name="line.386"></a> +<span class="sourceLineNo">387</span><a name="line.387"></a> +<span class="sourceLineNo">388</span> @Override<a name="line.388"></a> +<span class="sourceLineNo">389</span> public void toStringClassDetails(StringBuilder sb) {<a name="line.389"></a> +<span class="sourceLineNo">390</span> sb.append(getClass().getSimpleName());<a name="line.390"></a> +<span class="sourceLineNo">391</span> sb.append(" table=");<a name="line.391"></a> +<span class="sourceLineNo">392</span> sb.append(getTableName());<a name="line.392"></a> +<span class="sourceLineNo">393</span> sb.append(", parent=");<a name="line.393"></a> +<span class="sourceLineNo">394</span> sb.append(getParentRegion().getShortNameToLog());<a name="line.394"></a> +<span class="sourceLineNo">395</span> sb.append(", daughterA=");<a name="line.395"></a> +<span class="sourceLineNo">396</span> sb.append(daughter_1_RI.getShortNameToLog());<a name="line.396"></a> +<span class="sourceLineNo">397</span> sb.append(", daughterB=");<a name="line.397"></a> +<span class="sourceLineNo">398</span> sb.append(daughter_2_RI.getShortNameToLog());<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> private byte[] getSplitRow() {<a name="line.401"></a> -<span class="sourceLineNo">402</span> return daughter_2_RI.getStartKey();<a name="line.402"></a> +<span class="sourceLineNo">401</span> private RegionInfo getParentRegion() {<a name="line.401"></a> +<span class="sourceLineNo">402</span> return getRegion();<a name="line.402"></a> <span class="sourceLineNo">403</span> }<a name="line.403"></a> <span class="sourceLineNo">404</span><a name="line.404"></a> -<span class="sourceLineNo">405</span> private static State [] EXPECTED_SPLIT_STATES = new State [] {State.OPEN, State.CLOSED};<a name="line.405"></a> -<span 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<TRUNCATED>
