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From git-site-r...@apache.org
Subject [27/51] [partial] hbase-site git commit: Published site at .
Date Fri, 10 Nov 2017 15:30:14 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/a108018f/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html
index cb99dd4..e7374e1 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html
@@ -55,739 +55,744 @@
 <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.master.MasterCoprocessorHost;<a name="line.47"></a>
 <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.master.MasterFileSystem;<a name="line.48"></a>
 <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.master.normalizer.NormalizationPlan;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureUtil;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.procedure2.ProcedureMetrics;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.quotas.QuotaExceededException;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.regionserver.HStoreFile;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.regionserver.StoreFileInfo;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.65"></a>
-<span class="sourceLineNo">066</span><a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.70"></a>
-<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState;<a name="line.71"></a>
-<span class="sourceLineNo">072</span><a name="line.72"></a>
-<span class="sourceLineNo">073</span>/**<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * The procedure to Merge a region in a table.<a name="line.74"></a>
-<span class="sourceLineNo">075</span> * This procedure takes an exclusive table lock since it is working over multiple regions.<a name="line.75"></a>
-<span class="sourceLineNo">076</span> * It holds the lock for the life of the procedure.<a name="line.76"></a>
-<span class="sourceLineNo">077</span> */<a name="line.77"></a>
-<span class="sourceLineNo">078</span>@InterfaceAudience.Private<a name="line.78"></a>
-<span class="sourceLineNo">079</span>public class MergeTableRegionsProcedure<a name="line.79"></a>
-<span class="sourceLineNo">080</span>    extends AbstractStateMachineTableProcedure&lt;MergeTableRegionsState&gt; {<a name="line.80"></a>
-<span class="sourceLineNo">081</span>  private static final Log LOG = LogFactory.getLog(MergeTableRegionsProcedure.class);<a name="line.81"></a>
-<span class="sourceLineNo">082</span>  private Boolean traceEnabled;<a name="line.82"></a>
-<span class="sourceLineNo">083</span>  private volatile boolean lock = false;<a name="line.83"></a>
-<span class="sourceLineNo">084</span>  private ServerName regionLocation;<a name="line.84"></a>
-<span class="sourceLineNo">085</span>  private RegionInfo[] regionsToMerge;<a name="line.85"></a>
-<span class="sourceLineNo">086</span>  private RegionInfo mergedRegion;<a name="line.86"></a>
-<span class="sourceLineNo">087</span>  private boolean forcible;<a name="line.87"></a>
-<span class="sourceLineNo">088</span><a name="line.88"></a>
-<span class="sourceLineNo">089</span>  public MergeTableRegionsProcedure() {<a name="line.89"></a>
-<span class="sourceLineNo">090</span>    // Required by the Procedure framework to create the procedure on replay<a name="line.90"></a>
-<span class="sourceLineNo">091</span>  }<a name="line.91"></a>
-<span class="sourceLineNo">092</span><a name="line.92"></a>
-<span class="sourceLineNo">093</span>  public MergeTableRegionsProcedure(final MasterProcedureEnv env,<a name="line.93"></a>
-<span class="sourceLineNo">094</span>      final RegionInfo regionToMergeA, final RegionInfo regionToMergeB) throws IOException {<a name="line.94"></a>
-<span class="sourceLineNo">095</span>    this(env, regionToMergeA, regionToMergeB, false);<a name="line.95"></a>
-<span class="sourceLineNo">096</span>  }<a name="line.96"></a>
-<span class="sourceLineNo">097</span><a name="line.97"></a>
-<span class="sourceLineNo">098</span>  public MergeTableRegionsProcedure(final MasterProcedureEnv env,<a name="line.98"></a>
-<span class="sourceLineNo">099</span>      final RegionInfo regionToMergeA, final RegionInfo regionToMergeB,<a name="line.99"></a>
-<span class="sourceLineNo">100</span>      final boolean forcible) throws MergeRegionException {<a name="line.100"></a>
-<span class="sourceLineNo">101</span>    this(env, new RegionInfo[] {regionToMergeA, regionToMergeB}, forcible);<a name="line.101"></a>
-<span class="sourceLineNo">102</span>  }<a name="line.102"></a>
-<span class="sourceLineNo">103</span><a name="line.103"></a>
-<span class="sourceLineNo">104</span>  public MergeTableRegionsProcedure(final MasterProcedureEnv env,<a name="line.104"></a>
-<span class="sourceLineNo">105</span>      final RegionInfo[] regionsToMerge, final boolean forcible)<a name="line.105"></a>
-<span class="sourceLineNo">106</span>      throws MergeRegionException {<a name="line.106"></a>
-<span class="sourceLineNo">107</span>    super(env);<a name="line.107"></a>
-<span class="sourceLineNo">108</span><a name="line.108"></a>
-<span class="sourceLineNo">109</span>    // Check daughter regions and make sure that we have valid daughter regions<a name="line.109"></a>
-<span class="sourceLineNo">110</span>    // before doing the real work.<a name="line.110"></a>
-<span class="sourceLineNo">111</span>    checkRegionsToMerge(regionsToMerge, forcible);<a name="line.111"></a>
-<span class="sourceLineNo">112</span><a name="line.112"></a>
-<span class="sourceLineNo">113</span>    // WARN: make sure there is no parent region of the two merging regions in<a name="line.113"></a>
-<span class="sourceLineNo">114</span>    // hbase:meta If exists, fixing up daughters would cause daughter regions(we<a name="line.114"></a>
-<span class="sourceLineNo">115</span>    // have merged one) online again when we restart master, so we should clear<a name="line.115"></a>
-<span class="sourceLineNo">116</span>    // the parent region to prevent the above case<a name="line.116"></a>
-<span class="sourceLineNo">117</span>    // Since HBASE-7721, we don't need fix up daughters any more. so here do nothing<a name="line.117"></a>
-<span class="sourceLineNo">118</span>    this.regionsToMerge = regionsToMerge;<a name="line.118"></a>
-<span class="sourceLineNo">119</span>    this.mergedRegion = createMergedRegionInfo(regionsToMerge);<a name="line.119"></a>
-<span class="sourceLineNo">120</span>    this.forcible = forcible;<a name="line.120"></a>
-<span class="sourceLineNo">121</span>  }<a name="line.121"></a>
-<span class="sourceLineNo">122</span><a name="line.122"></a>
-<span class="sourceLineNo">123</span>  private static void checkRegionsToMerge(final RegionInfo[] regionsToMerge,<a name="line.123"></a>
-<span class="sourceLineNo">124</span>      final boolean forcible) throws MergeRegionException {<a name="line.124"></a>
-<span class="sourceLineNo">125</span>    // For now, we only merge 2 regions.<a name="line.125"></a>
-<span class="sourceLineNo">126</span>    // It could be extended to more than 2 regions in the future.<a name="line.126"></a>
-<span class="sourceLineNo">127</span>    if (regionsToMerge == null || regionsToMerge.length != 2) {<a name="line.127"></a>
-<span class="sourceLineNo">128</span>      throw new MergeRegionException("Expected to merge 2 regions, got: " +<a name="line.128"></a>
-<span class="sourceLineNo">129</span>        Arrays.toString(regionsToMerge));<a name="line.129"></a>
-<span class="sourceLineNo">130</span>    }<a name="line.130"></a>
-<span class="sourceLineNo">131</span><a name="line.131"></a>
-<span class="sourceLineNo">132</span>    checkRegionsToMerge(regionsToMerge[0], regionsToMerge[1], forcible);<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>  private static void checkRegionsToMerge(final RegionInfo regionToMergeA,<a name="line.135"></a>
-<span class="sourceLineNo">136</span>      final RegionInfo regionToMergeB, final boolean forcible) throws MergeRegionException {<a name="line.136"></a>
-<span class="sourceLineNo">137</span>    if (!regionToMergeA.getTable().equals(regionToMergeB.getTable())) {<a name="line.137"></a>
-<span class="sourceLineNo">138</span>      throw new MergeRegionException("Can't merge regions from two different tables: " +<a name="line.138"></a>
-<span class="sourceLineNo">139</span>        regionToMergeA + ", " + regionToMergeB);<a name="line.139"></a>
-<span class="sourceLineNo">140</span>    }<a name="line.140"></a>
-<span class="sourceLineNo">141</span><a name="line.141"></a>
-<span class="sourceLineNo">142</span>    if (regionToMergeA.getReplicaId() != RegionInfo.DEFAULT_REPLICA_ID ||<a name="line.142"></a>
-<span class="sourceLineNo">143</span>        regionToMergeB.getReplicaId() != RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.143"></a>
-<span class="sourceLineNo">144</span>      throw new MergeRegionException("Can't merge non-default replicas");<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    }<a name="line.145"></a>
-<span class="sourceLineNo">146</span><a name="line.146"></a>
-<span class="sourceLineNo">147</span>    if (!RegionInfo.areAdjacent(regionToMergeA, regionToMergeB)) {<a name="line.147"></a>
-<span class="sourceLineNo">148</span>      String msg = "Unable to merge not adjacent regions " + regionToMergeA.getShortNameToLog() +<a name="line.148"></a>
-<span class="sourceLineNo">149</span>          ", " + regionToMergeB.getShortNameToLog() + " where forcible = " + forcible;<a name="line.149"></a>
-<span class="sourceLineNo">150</span>      LOG.warn(msg);<a name="line.150"></a>
-<span class="sourceLineNo">151</span>      if (!forcible) {<a name="line.151"></a>
-<span class="sourceLineNo">152</span>        throw new MergeRegionException(msg);<a name="line.152"></a>
-<span class="sourceLineNo">153</span>      }<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><a name="line.156"></a>
-<span class="sourceLineNo">157</span>  private static RegionInfo createMergedRegionInfo(final RegionInfo[] regionsToMerge) {<a name="line.157"></a>
-<span class="sourceLineNo">158</span>    return createMergedRegionInfo(regionsToMerge[0], regionsToMerge[1]);<a name="line.158"></a>
-<span class="sourceLineNo">159</span>  }<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>   * Create merged region info through the specified two regions<a name="line.162"></a>
-<span class="sourceLineNo">163</span>   */<a name="line.163"></a>
-<span class="sourceLineNo">164</span>  private static RegionInfo createMergedRegionInfo(final RegionInfo regionToMergeA,<a name="line.164"></a>
-<span class="sourceLineNo">165</span>      final RegionInfo regionToMergeB) {<a name="line.165"></a>
-<span class="sourceLineNo">166</span>    // Choose the smaller as start key<a name="line.166"></a>
-<span class="sourceLineNo">167</span>    final byte[] startKey;<a name="line.167"></a>
-<span class="sourceLineNo">168</span>    if (RegionInfo.COMPARATOR.compare(regionToMergeA, regionToMergeB) &lt;= 0) {<a name="line.168"></a>
-<span class="sourceLineNo">169</span>      startKey = regionToMergeA.getStartKey();<a name="line.169"></a>
-<span class="sourceLineNo">170</span>    } else {<a name="line.170"></a>
-<span class="sourceLineNo">171</span>      startKey = regionToMergeB.getStartKey();<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>    // Choose the bigger as end key<a name="line.174"></a>
-<span class="sourceLineNo">175</span>    final byte[] endKey;<a name="line.175"></a>
-<span class="sourceLineNo">176</span>    if (Bytes.equals(regionToMergeA.getEndKey(), HConstants.EMPTY_BYTE_ARRAY)<a name="line.176"></a>
-<span class="sourceLineNo">177</span>        || (!Bytes.equals(regionToMergeB.getEndKey(), HConstants.EMPTY_BYTE_ARRAY)<a name="line.177"></a>
-<span class="sourceLineNo">178</span>            &amp;&amp; Bytes.compareTo(regionToMergeA.getEndKey(), regionToMergeB.getEndKey()) &gt; 0)) {<a name="line.178"></a>
-<span class="sourceLineNo">179</span>      endKey = regionToMergeA.getEndKey();<a name="line.179"></a>
-<span class="sourceLineNo">180</span>    } else {<a name="line.180"></a>
-<span class="sourceLineNo">181</span>      endKey = regionToMergeB.getEndKey();<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>    // Merged region is sorted between two merging regions in META<a name="line.184"></a>
-<span class="sourceLineNo">185</span>    return RegionInfoBuilder.newBuilder(regionToMergeA.getTable())<a name="line.185"></a>
-<span class="sourceLineNo">186</span>        .setStartKey(startKey)<a name="line.186"></a>
-<span class="sourceLineNo">187</span>        .setEndKey(endKey)<a name="line.187"></a>
-<span class="sourceLineNo">188</span>        .setSplit(false)<a name="line.188"></a>
-<span class="sourceLineNo">189</span>        .setRegionId(getMergedRegionIdTimestamp(regionToMergeA, regionToMergeB))<a name="line.189"></a>
-<span class="sourceLineNo">190</span>        .build();<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>  private static long getMergedRegionIdTimestamp(final RegionInfo regionToMergeA,<a name="line.193"></a>
-<span class="sourceLineNo">194</span>      final RegionInfo regionToMergeB) {<a name="line.194"></a>
-<span class="sourceLineNo">195</span>    long rid = EnvironmentEdgeManager.currentTime();<a name="line.195"></a>
-<span class="sourceLineNo">196</span>    // Regionid is timestamp. Merged region's id can't be less than that of<a name="line.196"></a>
-<span class="sourceLineNo">197</span>    // merging regions else will insert at wrong location in hbase:meta (See HBASE-710).<a name="line.197"></a>
-<span class="sourceLineNo">198</span>    if (rid &lt; regionToMergeA.getRegionId() || rid &lt; regionToMergeB.getRegionId()) {<a name="line.198"></a>
-<span class="sourceLineNo">199</span>      LOG.warn("Clock skew; merging regions id are " + regionToMergeA.getRegionId()<a name="line.199"></a>
-<span class="sourceLineNo">200</span>          + " and " + regionToMergeB.getRegionId() + ", but current time here is " + rid);<a name="line.200"></a>
-<span class="sourceLineNo">201</span>      rid = Math.max(regionToMergeA.getRegionId(), regionToMergeB.getRegionId()) + 1;<a name="line.201"></a>
-<span class="sourceLineNo">202</span>    }<a name="line.202"></a>
-<span class="sourceLineNo">203</span>    return rid;<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>  @Override<a name="line.206"></a>
-<span class="sourceLineNo">207</span>  protected Flow executeFromState(<a name="line.207"></a>
-<span class="sourceLineNo">208</span>      final MasterProcedureEnv env,<a name="line.208"></a>
-<span class="sourceLineNo">209</span>      final MergeTableRegionsState state)<a name="line.209"></a>
-<span class="sourceLineNo">210</span>  throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException {<a name="line.210"></a>
-<span class="sourceLineNo">211</span>    if (LOG.isDebugEnabled()) {<a name="line.211"></a>
-<span class="sourceLineNo">212</span>      LOG.debug(this + " execute state=" + state);<a name="line.212"></a>
-<span class="sourceLineNo">213</span>    }<a name="line.213"></a>
-<span class="sourceLineNo">214</span>    try {<a name="line.214"></a>
-<span class="sourceLineNo">215</span>      switch (state) {<a name="line.215"></a>
-<span class="sourceLineNo">216</span>      case MERGE_TABLE_REGIONS_PREPARE:<a name="line.216"></a>
-<span class="sourceLineNo">217</span>        if (!prepareMergeRegion(env)) {<a name="line.217"></a>
-<span class="sourceLineNo">218</span>          assert isFailed() : "Merge region should have an exception here";<a name="line.218"></a>
-<span class="sourceLineNo">219</span>          return Flow.NO_MORE_STATE;<a name="line.219"></a>
-<span class="sourceLineNo">220</span>        }<a name="line.220"></a>
-<span class="sourceLineNo">221</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_PRE_MERGE_OPERATION);<a name="line.221"></a>
-<span class="sourceLineNo">222</span>        break;<a name="line.222"></a>
-<span class="sourceLineNo">223</span>      case MERGE_TABLE_REGIONS_PRE_MERGE_OPERATION:<a name="line.223"></a>
-<span class="sourceLineNo">224</span>        preMergeRegions(env);<a name="line.224"></a>
-<span class="sourceLineNo">225</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_SET_MERGING_TABLE_STATE);<a name="line.225"></a>
-<span class="sourceLineNo">226</span>        break;<a name="line.226"></a>
-<span class="sourceLineNo">227</span>      case MERGE_TABLE_REGIONS_SET_MERGING_TABLE_STATE:<a name="line.227"></a>
-<span class="sourceLineNo">228</span>        setRegionStateToMerging(env);<a name="line.228"></a>
-<span class="sourceLineNo">229</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_CLOSE_REGIONS);<a name="line.229"></a>
-<span class="sourceLineNo">230</span>        break;<a name="line.230"></a>
-<span class="sourceLineNo">231</span>      case MERGE_TABLE_REGIONS_CLOSE_REGIONS:<a name="line.231"></a>
-<span class="sourceLineNo">232</span>        addChildProcedure(createUnassignProcedures(env, getRegionReplication(env)));<a name="line.232"></a>
-<span class="sourceLineNo">233</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_CREATE_MERGED_REGION);<a name="line.233"></a>
-<span class="sourceLineNo">234</span>        break;<a name="line.234"></a>
-<span class="sourceLineNo">235</span>      case MERGE_TABLE_REGIONS_CREATE_MERGED_REGION:<a name="line.235"></a>
-<span class="sourceLineNo">236</span>        createMergedRegion(env);<a name="line.236"></a>
-<span class="sourceLineNo">237</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_PRE_MERGE_COMMIT_OPERATION);<a name="line.237"></a>
-<span class="sourceLineNo">238</span>        break;<a name="line.238"></a>
-<span class="sourceLineNo">239</span>      case MERGE_TABLE_REGIONS_PRE_MERGE_COMMIT_OPERATION:<a name="line.239"></a>
-<span class="sourceLineNo">240</span>        preMergeRegionsCommit(env);<a name="line.240"></a>
-<span class="sourceLineNo">241</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_UPDATE_META);<a name="line.241"></a>
-<span class="sourceLineNo">242</span>        break;<a name="line.242"></a>
-<span class="sourceLineNo">243</span>      case MERGE_TABLE_REGIONS_UPDATE_META:<a name="line.243"></a>
-<span class="sourceLineNo">244</span>        updateMetaForMergedRegions(env);<a name="line.244"></a>
-<span class="sourceLineNo">245</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_POST_MERGE_COMMIT_OPERATION);<a name="line.245"></a>
-<span class="sourceLineNo">246</span>        break;<a name="line.246"></a>
-<span class="sourceLineNo">247</span>      case MERGE_TABLE_REGIONS_POST_MERGE_COMMIT_OPERATION:<a name="line.247"></a>
-<span class="sourceLineNo">248</span>        postMergeRegionsCommit(env);<a name="line.248"></a>
-<span class="sourceLineNo">249</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_OPEN_MERGED_REGION);<a name="line.249"></a>
-<span class="sourceLineNo">250</span>        break;<a name="line.250"></a>
-<span class="sourceLineNo">251</span>      case MERGE_TABLE_REGIONS_OPEN_MERGED_REGION:<a name="line.251"></a>
-<span class="sourceLineNo">252</span>        addChildProcedure(createAssignProcedures(env, getRegionReplication(env)));<a name="line.252"></a>
-<span class="sourceLineNo">253</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_POST_OPERATION);<a name="line.253"></a>
-<span class="sourceLineNo">254</span>        break;<a name="line.254"></a>
-<span class="sourceLineNo">255</span>      case MERGE_TABLE_REGIONS_POST_OPERATION:<a name="line.255"></a>
-<span class="sourceLineNo">256</span>        postCompletedMergeRegions(env);<a name="line.256"></a>
-<span class="sourceLineNo">257</span>        return Flow.NO_MORE_STATE;<a name="line.257"></a>
-<span class="sourceLineNo">258</span>      default:<a name="line.258"></a>
-<span class="sourceLineNo">259</span>        throw new UnsupportedOperationException(this + " unhandled state=" + state);<a name="line.259"></a>
-<span class="sourceLineNo">260</span>      }<a name="line.260"></a>
-<span class="sourceLineNo">261</span>    } catch (IOException e) {<a name="line.261"></a>
-<span class="sourceLineNo">262</span>      LOG.warn("Error trying to merge regions " + RegionInfo.getShortNameToLog(regionsToMerge) +<a name="line.262"></a>
-<span class="sourceLineNo">263</span>        " in the table " + getTableName() + " (in state=" + state + ")", e);<a name="line.263"></a>
-<span class="sourceLineNo">264</span><a name="line.264"></a>
-<span class="sourceLineNo">265</span>      setFailure("master-merge-regions", e);<a name="line.265"></a>
-<span class="sourceLineNo">266</span>    }<a name="line.266"></a>
-<span class="sourceLineNo">267</span>    return Flow.HAS_MORE_STATE;<a name="line.267"></a>
-<span class="sourceLineNo">268</span>  }<a name="line.268"></a>
-<span class="sourceLineNo">269</span><a name="line.269"></a>
-<span class="sourceLineNo">270</span>  @Override<a name="line.270"></a>
-<span class="sourceLineNo">271</span>  protected void rollbackState(<a name="line.271"></a>
-<span class="sourceLineNo">272</span>      final MasterProcedureEnv env,<a name="line.272"></a>
-<span class="sourceLineNo">273</span>      final MergeTableRegionsState state) throws IOException, InterruptedException {<a name="line.273"></a>
-<span class="sourceLineNo">274</span>    if (isTraceEnabled()) {<a name="line.274"></a>
-<span class="sourceLineNo">275</span>      LOG.trace(this + " rollback state=" + state);<a name="line.275"></a>
-<span class="sourceLineNo">276</span>    }<a name="line.276"></a>
-<span class="sourceLineNo">277</span><a name="line.277"></a>
-<span class="sourceLineNo">278</span>    try {<a name="line.278"></a>
-<span class="sourceLineNo">279</span>      switch (state) {<a name="line.279"></a>
-<span class="sourceLineNo">280</span>      case MERGE_TABLE_REGIONS_POST_OPERATION:<a name="line.280"></a>
-<span class="sourceLineNo">281</span>      case MERGE_TABLE_REGIONS_OPEN_MERGED_REGION:<a name="line.281"></a>
-<span class="sourceLineNo">282</span>      case MERGE_TABLE_REGIONS_POST_MERGE_COMMIT_OPERATION:<a name="line.282"></a>
-<span class="sourceLineNo">283</span>      case MERGE_TABLE_REGIONS_UPDATE_META:<a name="line.283"></a>
-<span class="sourceLineNo">284</span>        String msg = this + " We are in the " + state + " state."<a name="line.284"></a>
-<span class="sourceLineNo">285</span>            + " It is complicated to rollback the merge operation that region server is working on."<a name="line.285"></a>
-<span class="sourceLineNo">286</span>            + " Rollback is not supported and we should let the merge operation to complete";<a name="line.286"></a>
-<span class="sourceLineNo">287</span>        LOG.warn(msg);<a name="line.287"></a>
-<span class="sourceLineNo">288</span>        // PONR<a name="line.288"></a>
-<span class="sourceLineNo">289</span>        throw new UnsupportedOperationException(this + " unhandled state=" + state);<a name="line.289"></a>
-<span class="sourceLineNo">290</span>      case MERGE_TABLE_REGIONS_PRE_MERGE_COMMIT_OPERATION:<a name="line.290"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.master.normalizer.NormalizationPlan;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureUtil;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.procedure2.ProcedureMetrics;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.quotas.QuotaExceededException;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.regionserver.HStoreFile;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.regionserver.StoreFileInfo;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.66"></a>
+<span class="sourceLineNo">067</span><a name="line.67"></a>
+<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.68"></a>
+<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.69"></a>
+<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;<a name="line.70"></a>
+<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState;<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
+<span class="sourceLineNo">074</span>/**<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * The procedure to Merge a region in a table.<a name="line.75"></a>
+<span class="sourceLineNo">076</span> * This procedure takes an exclusive table lock since it is working over multiple regions.<a name="line.76"></a>
+<span class="sourceLineNo">077</span> * It holds the lock for the life of the procedure.<a name="line.77"></a>
+<span class="sourceLineNo">078</span> */<a name="line.78"></a>
+<span class="sourceLineNo">079</span>@InterfaceAudience.Private<a name="line.79"></a>
+<span class="sourceLineNo">080</span>public class MergeTableRegionsProcedure<a name="line.80"></a>
+<span class="sourceLineNo">081</span>    extends AbstractStateMachineTableProcedure&lt;MergeTableRegionsState&gt; {<a name="line.81"></a>
+<span class="sourceLineNo">082</span>  private static final Log LOG = LogFactory.getLog(MergeTableRegionsProcedure.class);<a name="line.82"></a>
+<span class="sourceLineNo">083</span>  private Boolean traceEnabled;<a name="line.83"></a>
+<span class="sourceLineNo">084</span>  private volatile boolean lock = false;<a name="line.84"></a>
+<span class="sourceLineNo">085</span>  private ServerName regionLocation;<a name="line.85"></a>
+<span class="sourceLineNo">086</span>  private RegionInfo[] regionsToMerge;<a name="line.86"></a>
+<span class="sourceLineNo">087</span>  private RegionInfo mergedRegion;<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  private boolean forcible;<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  public MergeTableRegionsProcedure() {<a name="line.90"></a>
+<span class="sourceLineNo">091</span>    // Required by the Procedure framework to create the procedure on replay<a name="line.91"></a>
+<span class="sourceLineNo">092</span>  }<a name="line.92"></a>
+<span class="sourceLineNo">093</span><a name="line.93"></a>
+<span class="sourceLineNo">094</span>  public MergeTableRegionsProcedure(final MasterProcedureEnv env,<a name="line.94"></a>
+<span class="sourceLineNo">095</span>      final RegionInfo regionToMergeA, final RegionInfo regionToMergeB) throws IOException {<a name="line.95"></a>
+<span class="sourceLineNo">096</span>    this(env, regionToMergeA, regionToMergeB, false);<a name="line.96"></a>
+<span class="sourceLineNo">097</span>  }<a name="line.97"></a>
+<span class="sourceLineNo">098</span><a name="line.98"></a>
+<span class="sourceLineNo">099</span>  public MergeTableRegionsProcedure(final MasterProcedureEnv env,<a name="line.99"></a>
+<span class="sourceLineNo">100</span>      final RegionInfo regionToMergeA, final RegionInfo regionToMergeB,<a name="line.100"></a>
+<span class="sourceLineNo">101</span>      final boolean forcible) throws MergeRegionException {<a name="line.101"></a>
+<span class="sourceLineNo">102</span>    this(env, new RegionInfo[] {regionToMergeA, regionToMergeB}, forcible);<a name="line.102"></a>
+<span class="sourceLineNo">103</span>  }<a name="line.103"></a>
+<span class="sourceLineNo">104</span><a name="line.104"></a>
+<span class="sourceLineNo">105</span>  public MergeTableRegionsProcedure(final MasterProcedureEnv env,<a name="line.105"></a>
+<span class="sourceLineNo">106</span>      final RegionInfo[] regionsToMerge, final boolean forcible)<a name="line.106"></a>
+<span class="sourceLineNo">107</span>      throws MergeRegionException {<a name="line.107"></a>
+<span class="sourceLineNo">108</span>    super(env);<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span>    // Check daughter regions and make sure that we have valid daughter regions<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    // before doing the real work.<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    checkRegionsToMerge(regionsToMerge, forcible);<a name="line.112"></a>
+<span class="sourceLineNo">113</span><a name="line.113"></a>
+<span class="sourceLineNo">114</span>    // WARN: make sure there is no parent region of the two merging regions in<a name="line.114"></a>
+<span class="sourceLineNo">115</span>    // hbase:meta If exists, fixing up daughters would cause daughter regions(we<a name="line.115"></a>
+<span class="sourceLineNo">116</span>    // have merged one) online again when we restart master, so we should clear<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    // the parent region to prevent the above case<a name="line.117"></a>
+<span class="sourceLineNo">118</span>    // Since HBASE-7721, we don't need fix up daughters any more. so here do nothing<a name="line.118"></a>
+<span class="sourceLineNo">119</span>    this.regionsToMerge = regionsToMerge;<a name="line.119"></a>
+<span class="sourceLineNo">120</span>    this.mergedRegion = createMergedRegionInfo(regionsToMerge);<a name="line.120"></a>
+<span class="sourceLineNo">121</span>    this.forcible = forcible;<a name="line.121"></a>
+<span class="sourceLineNo">122</span>  }<a name="line.122"></a>
+<span class="sourceLineNo">123</span><a name="line.123"></a>
+<span class="sourceLineNo">124</span>  private static void checkRegionsToMerge(final RegionInfo[] regionsToMerge,<a name="line.124"></a>
+<span class="sourceLineNo">125</span>      final boolean forcible) throws MergeRegionException {<a name="line.125"></a>
+<span class="sourceLineNo">126</span>    // For now, we only merge 2 regions.<a name="line.126"></a>
+<span class="sourceLineNo">127</span>    // It could be extended to more than 2 regions in the future.<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    if (regionsToMerge == null || regionsToMerge.length != 2) {<a name="line.128"></a>
+<span class="sourceLineNo">129</span>      throw new MergeRegionException("Expected to merge 2 regions, got: " +<a name="line.129"></a>
+<span class="sourceLineNo">130</span>        Arrays.toString(regionsToMerge));<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>    checkRegionsToMerge(regionsToMerge[0], regionsToMerge[1], forcible);<a name="line.133"></a>
+<span class="sourceLineNo">134</span>  }<a name="line.134"></a>
+<span class="sourceLineNo">135</span><a name="line.135"></a>
+<span class="sourceLineNo">136</span>  private static void checkRegionsToMerge(final RegionInfo regionToMergeA,<a name="line.136"></a>
+<span class="sourceLineNo">137</span>      final RegionInfo regionToMergeB, final boolean forcible) throws MergeRegionException {<a name="line.137"></a>
+<span class="sourceLineNo">138</span>    if (!regionToMergeA.getTable().equals(regionToMergeB.getTable())) {<a name="line.138"></a>
+<span class="sourceLineNo">139</span>      throw new MergeRegionException("Can't merge regions from two different tables: " +<a name="line.139"></a>
+<span class="sourceLineNo">140</span>        regionToMergeA + ", " + regionToMergeB);<a name="line.140"></a>
+<span class="sourceLineNo">141</span>    }<a name="line.141"></a>
+<span class="sourceLineNo">142</span><a name="line.142"></a>
+<span class="sourceLineNo">143</span>    if (regionToMergeA.getReplicaId() != RegionInfo.DEFAULT_REPLICA_ID ||<a name="line.143"></a>
+<span class="sourceLineNo">144</span>        regionToMergeB.getReplicaId() != RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      throw new MergeRegionException("Can't merge non-default replicas");<a name="line.145"></a>
+<span class="sourceLineNo">146</span>    }<a name="line.146"></a>
+<span class="sourceLineNo">147</span><a name="line.147"></a>
+<span class="sourceLineNo">148</span>    if (!RegionInfo.areAdjacent(regionToMergeA, regionToMergeB)) {<a name="line.148"></a>
+<span class="sourceLineNo">149</span>      String msg = "Unable to merge not adjacent regions " + regionToMergeA.getShortNameToLog() +<a name="line.149"></a>
+<span class="sourceLineNo">150</span>          ", " + regionToMergeB.getShortNameToLog() + " where forcible = " + forcible;<a name="line.150"></a>
+<span class="sourceLineNo">151</span>      LOG.warn(msg);<a name="line.151"></a>
+<span class="sourceLineNo">152</span>      if (!forcible) {<a name="line.152"></a>
+<span class="sourceLineNo">153</span>        throw new MergeRegionException(msg);<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>  }<a name="line.156"></a>
+<span class="sourceLineNo">157</span><a name="line.157"></a>
+<span class="sourceLineNo">158</span>  private static RegionInfo createMergedRegionInfo(final RegionInfo[] regionsToMerge) {<a name="line.158"></a>
+<span class="sourceLineNo">159</span>    return createMergedRegionInfo(regionsToMerge[0], regionsToMerge[1]);<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>  /**<a name="line.162"></a>
+<span class="sourceLineNo">163</span>   * Create merged region info through the specified two regions<a name="line.163"></a>
+<span class="sourceLineNo">164</span>   */<a name="line.164"></a>
+<span class="sourceLineNo">165</span>  private static RegionInfo createMergedRegionInfo(final RegionInfo regionToMergeA,<a name="line.165"></a>
+<span class="sourceLineNo">166</span>      final RegionInfo regionToMergeB) {<a name="line.166"></a>
+<span class="sourceLineNo">167</span>    // Choose the smaller as start key<a name="line.167"></a>
+<span class="sourceLineNo">168</span>    final byte[] startKey;<a name="line.168"></a>
+<span class="sourceLineNo">169</span>    if (RegionInfo.COMPARATOR.compare(regionToMergeA, regionToMergeB) &lt;= 0) {<a name="line.169"></a>
+<span class="sourceLineNo">170</span>      startKey = regionToMergeA.getStartKey();<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    } else {<a name="line.171"></a>
+<span class="sourceLineNo">172</span>      startKey = regionToMergeB.getStartKey();<a name="line.172"></a>
+<span class="sourceLineNo">173</span>    }<a name="line.173"></a>
+<span class="sourceLineNo">174</span><a name="line.174"></a>
+<span class="sourceLineNo">175</span>    // Choose the bigger as end key<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    final byte[] endKey;<a name="line.176"></a>
+<span class="sourceLineNo">177</span>    if (Bytes.equals(regionToMergeA.getEndKey(), HConstants.EMPTY_BYTE_ARRAY)<a name="line.177"></a>
+<span class="sourceLineNo">178</span>        || (!Bytes.equals(regionToMergeB.getEndKey(), HConstants.EMPTY_BYTE_ARRAY)<a name="line.178"></a>
+<span class="sourceLineNo">179</span>            &amp;&amp; Bytes.compareTo(regionToMergeA.getEndKey(), regionToMergeB.getEndKey()) &gt; 0)) {<a name="line.179"></a>
+<span class="sourceLineNo">180</span>      endKey = regionToMergeA.getEndKey();<a name="line.180"></a>
+<span class="sourceLineNo">181</span>    } else {<a name="line.181"></a>
+<span class="sourceLineNo">182</span>      endKey = regionToMergeB.getEndKey();<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>    // Merged region is sorted between two merging regions in META<a name="line.185"></a>
+<span class="sourceLineNo">186</span>    return RegionInfoBuilder.newBuilder(regionToMergeA.getTable())<a name="line.186"></a>
+<span class="sourceLineNo">187</span>        .setStartKey(startKey)<a name="line.187"></a>
+<span class="sourceLineNo">188</span>        .setEndKey(endKey)<a name="line.188"></a>
+<span class="sourceLineNo">189</span>        .setSplit(false)<a name="line.189"></a>
+<span class="sourceLineNo">190</span>        .setRegionId(getMergedRegionIdTimestamp(regionToMergeA, regionToMergeB))<a name="line.190"></a>
+<span class="sourceLineNo">191</span>        .build();<a name="line.191"></a>
+<span class="sourceLineNo">192</span>  }<a name="line.192"></a>
+<span class="sourceLineNo">193</span><a name="line.193"></a>
+<span class="sourceLineNo">194</span>  private static long getMergedRegionIdTimestamp(final RegionInfo regionToMergeA,<a name="line.194"></a>
+<span class="sourceLineNo">195</span>      final RegionInfo regionToMergeB) {<a name="line.195"></a>
+<span class="sourceLineNo">196</span>    long rid = EnvironmentEdgeManager.currentTime();<a name="line.196"></a>
+<span class="sourceLineNo">197</span>    // Regionid is timestamp. Merged region's id can't be less than that of<a name="line.197"></a>
+<span class="sourceLineNo">198</span>    // merging regions else will insert at wrong location in hbase:meta (See HBASE-710).<a name="line.198"></a>
+<span class="sourceLineNo">199</span>    if (rid &lt; regionToMergeA.getRegionId() || rid &lt; regionToMergeB.getRegionId()) {<a name="line.199"></a>
+<span class="sourceLineNo">200</span>      LOG.warn("Clock skew; merging regions id are " + regionToMergeA.getRegionId()<a name="line.200"></a>
+<span class="sourceLineNo">201</span>          + " and " + regionToMergeB.getRegionId() + ", but current time here is " + rid);<a name="line.201"></a>
+<span class="sourceLineNo">202</span>      rid = Math.max(regionToMergeA.getRegionId(), regionToMergeB.getRegionId()) + 1;<a name="line.202"></a>
+<span class="sourceLineNo">203</span>    }<a name="line.203"></a>
+<span class="sourceLineNo">204</span>    return rid;<a name="line.204"></a>
+<span class="sourceLineNo">205</span>  }<a name="line.205"></a>
+<span class="sourceLineNo">206</span><a name="line.206"></a>
+<span class="sourceLineNo">207</span>  @Override<a name="line.207"></a>
+<span class="sourceLineNo">208</span>  protected Flow executeFromState(<a name="line.208"></a>
+<span class="sourceLineNo">209</span>      final MasterProcedureEnv env,<a name="line.209"></a>
+<span class="sourceLineNo">210</span>      final MergeTableRegionsState state)<a name="line.210"></a>
+<span class="sourceLineNo">211</span>  throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException {<a name="line.211"></a>
+<span class="sourceLineNo">212</span>    if (LOG.isDebugEnabled()) {<a name="line.212"></a>
+<span class="sourceLineNo">213</span>      LOG.debug(this + " execute state=" + state);<a name="line.213"></a>
+<span class="sourceLineNo">214</span>    }<a name="line.214"></a>
+<span class="sourceLineNo">215</span>    try {<a name="line.215"></a>
+<span class="sourceLineNo">216</span>      switch (state) {<a name="line.216"></a>
+<span class="sourceLineNo">217</span>      case MERGE_TABLE_REGIONS_PREPARE:<a name="line.217"></a>
+<span class="sourceLineNo">218</span>        if (!prepareMergeRegion(env)) {<a name="line.218"></a>
+<span class="sourceLineNo">219</span>          assert isFailed() : "Merge region should have an exception here";<a name="line.219"></a>
+<span class="sourceLineNo">220</span>          return Flow.NO_MORE_STATE;<a name="line.220"></a>
+<span class="sourceLineNo">221</span>        }<a name="line.221"></a>
+<span class="sourceLineNo">222</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_PRE_MERGE_OPERATION);<a name="line.222"></a>
+<span class="sourceLineNo">223</span>        break;<a name="line.223"></a>
+<span class="sourceLineNo">224</span>      case MERGE_TABLE_REGIONS_PRE_MERGE_OPERATION:<a name="line.224"></a>
+<span class="sourceLineNo">225</span>        preMergeRegions(env);<a name="line.225"></a>
+<span class="sourceLineNo">226</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_CLOSE_REGIONS);<a name="line.226"></a>
+<span class="sourceLineNo">227</span>        break;<a name="line.227"></a>
+<span class="sourceLineNo">228</span>      case MERGE_TABLE_REGIONS_CLOSE_REGIONS:<a name="line.228"></a>
+<span class="sourceLineNo">229</span>        addChildProcedure(createUnassignProcedures(env, getRegionReplication(env)));<a name="line.229"></a>
+<span class="sourceLineNo">230</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_CREATE_MERGED_REGION);<a name="line.230"></a>
+<span class="sourceLineNo">231</span>        break;<a name="line.231"></a>
+<span class="sourceLineNo">232</span>      case MERGE_TABLE_REGIONS_CREATE_MERGED_REGION:<a name="line.232"></a>
+<span class="sourceLineNo">233</span>        createMergedRegion(env);<a name="line.233"></a>
+<span class="sourceLineNo">234</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_PRE_MERGE_COMMIT_OPERATION);<a name="line.234"></a>
+<span class="sourceLineNo">235</span>        break;<a name="line.235"></a>
+<span class="sourceLineNo">236</span>      case MERGE_TABLE_REGIONS_PRE_MERGE_COMMIT_OPERATION:<a name="line.236"></a>
+<span class="sourceLineNo">237</span>        preMergeRegionsCommit(env);<a name="line.237"></a>
+<span class="sourceLineNo">238</span>        setNextState(MergeTableRegionsState.MERGE_TABLE_REGIONS_UPDATE_META);<a name="line.238"></a>
+<span class="sourceLineNo">239</span>        break;<a name="line.239"></a>
+<span class="sourceLineNo">240</span>      case MERGE_TABLE_REGIONS_UPDATE_META:<a name="line.240"></a>
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+<span class="sourceLineNo">375</span><a name="line.375"></a>
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+<span class="sourceLineNo">387</span>    sb.append(forcible);<a name="line.387"></a>
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+<span class="sourceLineNo">389</span><a name="line.389"></a>
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+<span class="sourceLineNo">438</span><a name="line.438"></a>
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+<span class="sourceLineNo">454</span>        + (regionAHasMergeQualifier ? regionsToMerge[0].getEncodedName() : regionsToMerge[1]<a name="line.454"></a>
+<span class="sourceLineNo">455</span>              .getEncodedName()) + " has merge qualifier";<a name="line.455"></a>
+<span class="sourceLineNo">456</span>      LOG.warn(msg);<a name="line.456"></a>
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+<span class="sourceLineNo">477</span>      super.setFailure(getClass().getSimpleName(),<a name="line.477"></a>
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<TRUNCATED>

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