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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/11/14 14:53:11 UTC
[22/29] hbase-site git commit: Published site at
640a5e390b525e1c42f3c46bcc5acc59786900f0.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2bd8387f/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html
index 7a6b1af..3b300ad 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html
@@ -25,550 +25,621 @@
<span class="sourceLineNo">017</span> */<a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.master.assignment;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
-<span class="sourceLineNo">020</span>import edu.umd.cs.findbugs.annotations.Nullable;<a name="line.20"></a>
-<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.ServerName;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.TableName;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.RetriesExhaustedException;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.exceptions.UnexpectedStateException;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure2.ProcedureMetrics;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.procedure2.ProcedureUtil;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.slf4j.Logger;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.slf4j.LoggerFactory;<a name="line.40"></a>
-<span class="sourceLineNo">041</span><a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionStateTransitionState;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionStateTransitionStateData;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.47"></a>
-<span class="sourceLineNo">048</span><a name="line.48"></a>
-<span class="sourceLineNo">049</span>/**<a name="line.49"></a>
-<span class="sourceLineNo">050</span> * The procedure to deal with the state transition of a region. A region with a TRSP in place is<a name="line.50"></a>
-<span class="sourceLineNo">051</span> * called RIT, i.e, RegionInTransition.<a name="line.51"></a>
-<span class="sourceLineNo">052</span> * <p/><a name="line.52"></a>
-<span class="sourceLineNo">053</span> * It can be used to assign/unassign/reopen/move a region, and for<a name="line.53"></a>
-<span class="sourceLineNo">054</span> * {@link #unassign(MasterProcedureEnv, RegionInfo)} and<a name="line.54"></a>
-<span class="sourceLineNo">055</span> * {@link #reopen(MasterProcedureEnv, RegionInfo)}, you do not need to specify a target server, and<a name="line.55"></a>
-<span class="sourceLineNo">056</span> * for {@link #assign(MasterProcedureEnv, RegionInfo, ServerName)} and<a name="line.56"></a>
-<span class="sourceLineNo">057</span> * {@link #move(MasterProcedureEnv, RegionInfo, ServerName)}, if you want to you can provide a<a name="line.57"></a>
-<span class="sourceLineNo">058</span> * target server. And for {@link #move(MasterProcedureEnv, RegionInfo, ServerName)}, if you do not<a name="line.58"></a>
-<span class="sourceLineNo">059</span> * specify a targetServer, we will select one randomly.<a name="line.59"></a>
-<span class="sourceLineNo">060</span> * <p/><a name="line.60"></a>
-<span class="sourceLineNo">061</span> * <p/><a name="line.61"></a>
-<span class="sourceLineNo">062</span> * The typical state transition for assigning a region is:<a name="line.62"></a>
-<span class="sourceLineNo">063</span> *<a name="line.63"></a>
-<span class="sourceLineNo">064</span> * <pre><a name="line.64"></a>
-<span class="sourceLineNo">065</span> * GET_ASSIGN_CANDIDATE ------> OPEN -----> CONFIRM_OPENED<a name="line.65"></a>
-<span class="sourceLineNo">066</span> * </pre><a name="line.66"></a>
+<span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionStateTransitionState.REGION_STATE_TRANSITION_CONFIRM_CLOSED;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionStateTransitionState.REGION_STATE_TRANSITION_CONFIRM_OPENED;<a name="line.21"></a>
+<span class="sourceLineNo">022</span><a name="line.22"></a>
+<span class="sourceLineNo">023</span>import edu.umd.cs.findbugs.annotations.Nullable;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.ServerName;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.TableName;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.RetriesExhaustedException;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.exceptions.UnexpectedStateException;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.procedure2.ProcedureMetrics;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.procedure2.ProcedureUtil;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.slf4j.Logger;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.slf4j.LoggerFactory;<a name="line.43"></a>
+<span class="sourceLineNo">044</span><a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.45"></a>
+<span class="sourceLineNo">046</span><a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionStateTransitionState;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionStateTransitionStateData;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.51"></a>
+<span class="sourceLineNo">052</span><a name="line.52"></a>
+<span class="sourceLineNo">053</span>/**<a name="line.53"></a>
+<span class="sourceLineNo">054</span> * The procedure to deal with the state transition of a region. A region with a TRSP in place is<a name="line.54"></a>
+<span class="sourceLineNo">055</span> * called RIT, i.e, RegionInTransition.<a name="line.55"></a>
+<span class="sourceLineNo">056</span> * <p/><a name="line.56"></a>
+<span class="sourceLineNo">057</span> * It can be used to assign/unassign/reopen/move a region, and for<a name="line.57"></a>
+<span class="sourceLineNo">058</span> * {@link #unassign(MasterProcedureEnv, RegionInfo)} and<a name="line.58"></a>
+<span class="sourceLineNo">059</span> * {@link #reopen(MasterProcedureEnv, RegionInfo)}, you do not need to specify a target server, and<a name="line.59"></a>
+<span class="sourceLineNo">060</span> * for {@link #assign(MasterProcedureEnv, RegionInfo, ServerName)} and<a name="line.60"></a>
+<span class="sourceLineNo">061</span> * {@link #move(MasterProcedureEnv, RegionInfo, ServerName)}, if you want to you can provide a<a name="line.61"></a>
+<span class="sourceLineNo">062</span> * target server. And for {@link #move(MasterProcedureEnv, RegionInfo, ServerName)}, if you do not<a name="line.62"></a>
+<span class="sourceLineNo">063</span> * specify a targetServer, we will select one randomly.<a name="line.63"></a>
+<span class="sourceLineNo">064</span> * <p/><a name="line.64"></a>
+<span class="sourceLineNo">065</span> * <p/><a name="line.65"></a>
+<span class="sourceLineNo">066</span> * The typical state transition for assigning a region is:<a name="line.66"></a>
<span class="sourceLineNo">067</span> *<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * Notice that, if there are failures we may go back to the {@code GET_ASSIGN_CANDIDATE} state to<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * try again.<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * <p/><a name="line.70"></a>
-<span class="sourceLineNo">071</span> * The typical state transition for unassigning a region is:<a name="line.71"></a>
-<span class="sourceLineNo">072</span> *<a name="line.72"></a>
-<span class="sourceLineNo">073</span> * <pre><a name="line.73"></a>
-<span class="sourceLineNo">074</span> * CLOSE -----> CONFIRM_CLOSED<a name="line.74"></a>
-<span class="sourceLineNo">075</span> * </pre><a name="line.75"></a>
+<span class="sourceLineNo">068</span> * <pre><a name="line.68"></a>
+<span class="sourceLineNo">069</span> * GET_ASSIGN_CANDIDATE ------> OPEN -----> CONFIRM_OPENED<a name="line.69"></a>
+<span class="sourceLineNo">070</span> * </pre><a name="line.70"></a>
+<span class="sourceLineNo">071</span> *<a name="line.71"></a>
+<span class="sourceLineNo">072</span> * Notice that, if there are failures we may go back to the {@code GET_ASSIGN_CANDIDATE} state to<a name="line.72"></a>
+<span class="sourceLineNo">073</span> * try again.<a name="line.73"></a>
+<span class="sourceLineNo">074</span> * <p/><a name="line.74"></a>
+<span class="sourceLineNo">075</span> * The typical state transition for unassigning a region is:<a name="line.75"></a>
<span class="sourceLineNo">076</span> *<a name="line.76"></a>
-<span class="sourceLineNo">077</span> * Here things go a bit different, if there are failures, especially that if there is a server<a name="line.77"></a>
-<span class="sourceLineNo">078</span> * crash, we will go to the {@code GET_ASSIGN_CANDIDATE} state to bring the region online first, and<a name="line.78"></a>
-<span class="sourceLineNo">079</span> * then go through the normal way to unassign it.<a name="line.79"></a>
-<span class="sourceLineNo">080</span> * <p/><a name="line.80"></a>
-<span class="sourceLineNo">081</span> * The typical state transition for reopening/moving a region is:<a name="line.81"></a>
-<span class="sourceLineNo">082</span> *<a name="line.82"></a>
-<span class="sourceLineNo">083</span> * <pre><a name="line.83"></a>
-<span class="sourceLineNo">084</span> * CLOSE -----> CONFIRM_CLOSED -----> GET_ASSIGN_CANDIDATE ------> OPEN -----> CONFIRM_OPENED<a name="line.84"></a>
-<span class="sourceLineNo">085</span> * </pre><a name="line.85"></a>
+<span class="sourceLineNo">077</span> * <pre><a name="line.77"></a>
+<span class="sourceLineNo">078</span> * CLOSE -----> CONFIRM_CLOSED<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * </pre><a name="line.79"></a>
+<span class="sourceLineNo">080</span> *<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * Here things go a bit different, if there are failures, especially that if there is a server<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * crash, we will go to the {@code GET_ASSIGN_CANDIDATE} state to bring the region online first, and<a name="line.82"></a>
+<span class="sourceLineNo">083</span> * then go through the normal way to unassign it.<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * <p/><a name="line.84"></a>
+<span class="sourceLineNo">085</span> * The typical state transition for reopening/moving a region is:<a name="line.85"></a>
<span class="sourceLineNo">086</span> *<a name="line.86"></a>
-<span class="sourceLineNo">087</span> * The retry logic is the same with the above assign/unassign.<a name="line.87"></a>
-<span class="sourceLineNo">088</span> * <p/><a name="line.88"></a>
-<span class="sourceLineNo">089</span> * Notice that, although we allow specify a target server, it just acts as a candidate, we do not<a name="line.89"></a>
-<span class="sourceLineNo">090</span> * guarantee that the region will finally be on the target server. If this is important for you, you<a name="line.90"></a>
-<span class="sourceLineNo">091</span> * should check whether the region is on the target server after the procedure is finished.<a name="line.91"></a>
+<span class="sourceLineNo">087</span> * <pre><a name="line.87"></a>
+<span class="sourceLineNo">088</span> * CLOSE -----> CONFIRM_CLOSED -----> GET_ASSIGN_CANDIDATE ------> OPEN -----> CONFIRM_OPENED<a name="line.88"></a>
+<span class="sourceLineNo">089</span> * </pre><a name="line.89"></a>
+<span class="sourceLineNo">090</span> *<a name="line.90"></a>
+<span class="sourceLineNo">091</span> * The retry logic is the same with the above assign/unassign.<a name="line.91"></a>
<span class="sourceLineNo">092</span> * <p/><a name="line.92"></a>
-<span class="sourceLineNo">093</span> * When you want to schedule a TRSP, please check whether there is still one for this region, and<a name="line.93"></a>
-<span class="sourceLineNo">094</span> * the check should be under the RegionStateNode lock. We will remove the TRSP from a<a name="line.94"></a>
-<span class="sourceLineNo">095</span> * RegionStateNode when we are done, see the code in {@code reportTransition} method below. There<a name="line.95"></a>
-<span class="sourceLineNo">096</span> * could be at most one TRSP for a give region.<a name="line.96"></a>
-<span class="sourceLineNo">097</span> */<a name="line.97"></a>
-<span class="sourceLineNo">098</span>@InterfaceAudience.Private<a name="line.98"></a>
-<span class="sourceLineNo">099</span>public class TransitRegionStateProcedure<a name="line.99"></a>
-<span class="sourceLineNo">100</span> extends AbstractStateMachineRegionProcedure<RegionStateTransitionState> {<a name="line.100"></a>
-<span class="sourceLineNo">101</span><a name="line.101"></a>
-<span class="sourceLineNo">102</span> private static final Logger LOG = LoggerFactory.getLogger(TransitRegionStateProcedure.class);<a name="line.102"></a>
-<span class="sourceLineNo">103</span><a name="line.103"></a>
-<span class="sourceLineNo">104</span> private RegionStateTransitionState initialState;<a name="line.104"></a>
+<span class="sourceLineNo">093</span> * Notice that, although we allow specify a target server, it just acts as a candidate, we do not<a name="line.93"></a>
+<span class="sourceLineNo">094</span> * guarantee that the region will finally be on the target server. If this is important for you, you<a name="line.94"></a>
+<span class="sourceLineNo">095</span> * should check whether the region is on the target server after the procedure is finished.<a name="line.95"></a>
+<span class="sourceLineNo">096</span> * <p/><a name="line.96"></a>
+<span class="sourceLineNo">097</span> * When you want to schedule a TRSP, please check whether there is still one for this region, and<a name="line.97"></a>
+<span class="sourceLineNo">098</span> * the check should be under the RegionStateNode lock. We will remove the TRSP from a<a name="line.98"></a>
+<span class="sourceLineNo">099</span> * RegionStateNode when we are done, see the code in {@code reportTransition} method below. There<a name="line.99"></a>
+<span class="sourceLineNo">100</span> * could be at most one TRSP for a give region.<a name="line.100"></a>
+<span class="sourceLineNo">101</span> */<a name="line.101"></a>
+<span class="sourceLineNo">102</span>@InterfaceAudience.Private<a name="line.102"></a>
+<span class="sourceLineNo">103</span>public class TransitRegionStateProcedure<a name="line.103"></a>
+<span class="sourceLineNo">104</span> extends AbstractStateMachineRegionProcedure<RegionStateTransitionState> {<a name="line.104"></a>
<span class="sourceLineNo">105</span><a name="line.105"></a>
-<span class="sourceLineNo">106</span> private RegionStateTransitionState lastState;<a name="line.106"></a>
+<span class="sourceLineNo">106</span> private static final Logger LOG = LoggerFactory.getLogger(TransitRegionStateProcedure.class);<a name="line.106"></a>
<span class="sourceLineNo">107</span><a name="line.107"></a>
-<span class="sourceLineNo">108</span> // the candidate where we want to assign the region to.<a name="line.108"></a>
-<span class="sourceLineNo">109</span> private ServerName assignCandidate;<a name="line.109"></a>
-<span class="sourceLineNo">110</span><a name="line.110"></a>
-<span class="sourceLineNo">111</span> private boolean forceNewPlan;<a name="line.111"></a>
-<span class="sourceLineNo">112</span><a name="line.112"></a>
-<span class="sourceLineNo">113</span> private int attempt;<a name="line.113"></a>
+<span class="sourceLineNo">108</span> private RegionStateTransitionState initialState;<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span> private RegionStateTransitionState lastState;<a name="line.110"></a>
+<span class="sourceLineNo">111</span><a name="line.111"></a>
+<span class="sourceLineNo">112</span> // the candidate where we want to assign the region to.<a name="line.112"></a>
+<span class="sourceLineNo">113</span> private ServerName assignCandidate;<a name="line.113"></a>
<span class="sourceLineNo">114</span><a name="line.114"></a>
-<span class="sourceLineNo">115</span> public TransitRegionStateProcedure() {<a name="line.115"></a>
-<span class="sourceLineNo">116</span> }<a name="line.116"></a>
-<span class="sourceLineNo">117</span><a name="line.117"></a>
-<span class="sourceLineNo">118</span> @VisibleForTesting<a name="line.118"></a>
-<span class="sourceLineNo">119</span> protected TransitRegionStateProcedure(MasterProcedureEnv env, RegionInfo hri,<a name="line.119"></a>
-<span class="sourceLineNo">120</span> ServerName assignCandidate, boolean forceNewPlan, RegionStateTransitionState initialState,<a name="line.120"></a>
-<span class="sourceLineNo">121</span> RegionStateTransitionState lastState) {<a name="line.121"></a>
-<span class="sourceLineNo">122</span> super(env, hri);<a name="line.122"></a>
-<span class="sourceLineNo">123</span> this.assignCandidate = assignCandidate;<a name="line.123"></a>
-<span class="sourceLineNo">124</span> this.forceNewPlan = forceNewPlan;<a name="line.124"></a>
-<span class="sourceLineNo">125</span> this.initialState = initialState;<a name="line.125"></a>
-<span class="sourceLineNo">126</span> this.lastState = lastState;<a name="line.126"></a>
-<span class="sourceLineNo">127</span> }<a name="line.127"></a>
-<span class="sourceLineNo">128</span><a name="line.128"></a>
-<span class="sourceLineNo">129</span> @Override<a name="line.129"></a>
-<span class="sourceLineNo">130</span> public TableOperationType getTableOperationType() {<a name="line.130"></a>
-<span class="sourceLineNo">131</span> // TODO: maybe we should make another type here, REGION_TRANSITION?<a name="line.131"></a>
-<span class="sourceLineNo">132</span> return TableOperationType.REGION_EDIT;<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> @Override<a name="line.135"></a>
-<span class="sourceLineNo">136</span> protected boolean waitInitialized(MasterProcedureEnv env) {<a name="line.136"></a>
-<span class="sourceLineNo">137</span> if (TableName.isMetaTableName(getTableName())) {<a name="line.137"></a>
-<span class="sourceLineNo">138</span> return false;<a name="line.138"></a>
-<span class="sourceLineNo">139</span> }<a name="line.139"></a>
-<span class="sourceLineNo">140</span> // First we need meta to be loaded, and second, if meta is not online then we will likely to<a name="line.140"></a>
-<span class="sourceLineNo">141</span> // fail when updating meta so we wait until it is assigned.<a name="line.141"></a>
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+<span class="sourceLineNo">116</span><a name="line.116"></a>
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+<span class="sourceLineNo">121</span><a name="line.121"></a>
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+<span class="sourceLineNo">125</span> RegionStateTransitionState lastState) {<a name="line.125"></a>
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+<span class="sourceLineNo">133</span> @Override<a name="line.133"></a>
+<span class="sourceLineNo">134</span> public TableOperationType getTableOperationType() {<a name="line.134"></a>
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+<span class="sourceLineNo">140</span> protected boolean waitInitialized(MasterProcedureEnv env) {<a name="line.140"></a>
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+<span class="sourceLineNo">143</span> }<a name="line.143"></a>
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+<span class="sourceLineNo">145</span> // fail when updating meta so we wait until it is assigned.<a name="line.145"></a>
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+<span class="sourceLineNo">148</span> }<a name="line.148"></a>
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+<span class="sourceLineNo">152</span> // Here the assumption is that, the region must be in CLOSED state, so the region location<a name="line.152"></a>
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+<span class="sourceLineNo">154</span> // true, and also we will set the region location to null.<a name="line.154"></a>
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+<span class="sourceLineNo">159</span> regionNode.setRegionLocation(assignCandidate);<a name="line.159"></a>
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+<span class="sourceLineNo">162</span> LOG.info("Setting lastHost as the region location {}", regionNode.getLastHost());<a name="line.162"></a>
+<span class="sourceLineNo">163</span> regionNode.setRegionLocation(regionNode.getLastHost());<a name="line.163"></a>
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+<span class="sourceLineNo">166</span> LOG.info("Starting {}; {}; forceNewPlan={}, retain={}", this, regionNode.toShortString(),<a name="line.166"></a>
+<span class="sourceLineNo">167</span> forceNewPlan, retain);<a name="line.167"></a>
+<span class="sourceLineNo">168</span> env.getAssignmentManager().queueAssign(regionNode);<a name="line.168"></a>
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+<span class="sourceLineNo">171</span> throw new ProcedureSuspendedException();<a name="line.171"></a>
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+<span class="sourceLineNo">173</span> }<a name="line.173"></a>
+<span class="sourceLineNo">174</span><a name="line.174"></a>
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+<span class="sourceLineNo">178</span> LOG.warn("No location specified for {}, jump back to state {} to get one", getRegion(),<a name="line.178"></a>
+<span class="sourceLineNo">179</span> RegionStateTransitionState.REGION_STATE_TRANSITION_GET_ASSIGN_CANDIDATE);<a name="line.179"></a>
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+<span class="sourceLineNo">182</span> }<a name="line.182"></a>
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+<span class="sourceLineNo">187</span><a name="line.187"></a>
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+<span class="sourceLineNo">190</span> // notice that, for normal case, if we successfully opened a region, we will not arrive here, as<a name="line.190"></a>
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+<span class="sourceLineNo">192</span> // directly. But if the master is crashed before we finish the procedure, then next time we will<a name="line.192"></a>
+<span class="sourceLineNo">193</span> // arrive here. So we still need to add code for normal cases.<a name="line.193"></a>
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+<span class="sourceLineNo">197</span> // we are the last state, finish<a name="line.197"></a>
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+<span class="sourceLineNo">205</span> // loss data.<a name="line.205"></a>
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+<span class="sourceLineNo">213</span> "Max attempts " + env.getAssignmentManager().getAssignMaxAttempts() + " exceeded"));<a name="line.213"></a>
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+<span class="sourceLineNo">218</span> // we failed to assign the region, force a new plan<a name="line.218"></a>
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+<span class="sourceLineNo">225</span><a name="line.225"></a>
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+<span class="sourceLineNo">237</span> }<a name="line.237"></a>
+<span class="sourceLineNo">238</span> }<a name="line.238"></a>
+<span class="sourceLineNo">239</span><a name="line.239"></a>
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+<span class="sourceLineNo">242</span> // notice that, for normal case, if we successfully opened a region, we will not arrive here, as<a name="line.242"></a>
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+<span class="sourceLineNo">244</span> // directly. But if the master is crashed before we finish the procedure, then next time we will<a name="line.244"></a>
+<span class="sourceLineNo">245</span> // arrive here. So we still need to add code for normal cases.<a name="line.245"></a>
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+<span class="sourceLineNo">262</span> throw new HBaseIOException("Failed to close region");<a name="line.262"></a>
+<span class="sourceLineNo">263</span> }<a name="line.263"></a>
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+<span class="sourceLineNo">266</span> // want to close it.<a name="line.266"></a>
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+<span class="sourceLineNo">268</span> // edits. Notice that the region will remain in ABNORMALLY_CLOSED state, the upper layer need to<a name="line.268"></a>
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+<span class="sourceLineNo">274</span> return Flow.NO_MORE_STATE;<a name="line.274"></a>
+<span class="sourceLineNo">275</span> }<a name="line.275"></a>
+<span class="sourceLineNo">276</span> attempt = 0;<a name="line.276"></a>
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+<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> // Override to lock RegionStateNode<a name="line.281"></a>
+<span class="sourceLineNo">282</span> @SuppressWarnings("rawtypes")<a name="line.282"></a>
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+<span class="sourceLineNo">286</span> RegionStateNode regionNode =<a name="line.286"></a>
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+<span class="sourceLineNo">288</span> regionNode.lock();<a name="line.288"></a>
+<span class="sourceLineNo">289</span> try {<a name="line.289"></a>
+<span class="sourceLineNo">290</span> return super.execute(env);<a name="line.290"></a>
+<span class="sourceLineNo">291</span> } finally {<a name="line.291"></a>
+<span class="sourceLineNo">292</span> regionNode.unlock();<a name="line.292"></a>
+<span class="sourceLineNo">293</span> }<a name="line.293"></a>
<span class="sourceLineNo">294</span> }<a name="line.294"></a>
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-<span class="sourceLineNo">299</span> RegionStateNode regionNode = getRegionStateNode(env);<a name="line.299"></a>
-<span class="sourceLineNo">300</span> if (regionNode.getProcedure() != this) {<a name="line.300"></a>
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-<span class="sourceLineNo">303</span> // This is because that, when we mark the region as OPENED or CLOSED, then all the works<a name="line.303"></a>
-<span class="sourceLineNo">304</span> // should have already been done, and logically we could have another TRSP scheduled for this<a name="line.304"></a>
-<span class="sourceLineNo">305</span> // region immediately(think of a RS crash at the point...).<a name="line.305"></a>
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-<span class="sourceLineNo">307</span> }<a name="line.307"></a>
-<span class="sourceLineNo">308</span> try {<a name="line.308"></a>
-<span class="sourceLineNo">309</span> switch (state) {<a name="line.309"></a>
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-<span class="sourceLineNo">324</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.324"></a>
-<span class="sourceLineNo">325</span> }<a name="line.325"></a>
-<span class="sourceLineNo">326</span> } catch (IOException e) {<a name="line.326"></a>
-<span class="sourceLineNo">327</span> long backoff = ProcedureUtil.getBackoffTimeMs(this.attempt++);<a name="line.327"></a>
-<span class="sourceLineNo">328</span> LOG.warn(<a name="line.328"></a>
-<span class="sourceLineNo">329</span> "Failed transition, suspend {}secs {}; {}; waiting on rectified condition fixed " +<a name="line.329"></a>
-<span class="sourceLineNo">330</span> "by other Procedure or operator intervention",<a name="line.330"></a>
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-<span class="sourceLineNo">332</span> setTimeout(Math.toIntExact(backoff));<a name="line.332"></a>
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-<span class="sourceLineNo">338</span><a name="line.338"></a>
-<span class="sourceLineNo">339</span> /**<a name="line.339"></a>
-<span class="sourceLineNo">340</span> * At end of timeout, wake ourselves up so we run again.<a name="line.340"></a>
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-<span class="sourceLineNo">345</span> env.getProcedureScheduler().addFront(this);<a name="line.345"></a>
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-<span class="sourceLineNo">355</span> " transition openSeqNum=" + openSeqNum + ", " + regionNode);<a name="line.355"></a>
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-<span class="sourceLineNo">359</span> LOG.warn("Skip update of openSeqNum for {} with {} because the currentSeqNum={}",<a name="line.359"></a>
-<span class="sourceLineNo">360</span> regionNode, openSeqNum, regionNode.getOpenSeqNum());<a name="line.360"></a>
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-<span class="sourceLineNo">378</span> "Received report unexpected " + code + " transition openSeqNum=" + openSeqNum + ", " +<a name="line.378"></a>
-<span class="sourceLineNo">379</span> regionNode.toShortString() + ", " + this + ", expected OPENED or FAILED_OPEN.");<a name="line.379"></a>
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-<span class="sourceLineNo">382</span><a name="line.382"></a>
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-<span class="sourceLineNo">411</span> default:<a name="line.411"></a>
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-<span class="sourceLineNo">441</span> // let's add a log here<a name="line.441"></a>
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-<span class="sourceLineNo">450</span> .incrementAndGetRetries();<a name="line.450"></a>
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-<span class="sourceLineNo">453</span> return retries >= max;<a name="line.453"></a>
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-<span class="sourceLineNo">459</span> // no rollback<a name="line.459"></a>
-<span class="sourceLineNo">460</span> throw new UnsupportedOperationException();<a name="line.460"></a>
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-<span class="sourceLineNo">462</span><a name="line.462"></a>
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-<span class="sourceLineNo">467</span><a name="line.467"></a>
-<span class="sourceLineNo">468</span> @Override<a name="line.468"></a>
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-<span class="sourceLineNo">470</span> return state.getNumber();<a name="line.470"></a>
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-<span class="sourceLineNo">472</span><a name="line.472"></a>
-<span class="sourceLineNo">473</span> @Override<a name="line.473"></a>
-<span class="sourceLineNo">474</span> protected RegionStateTransitionState getInitialState() {<a name="line.474"></a>
-<span class="sourceLineNo">475</span> return initialState;<a name="line.475"></a>
-<span class="sourceLineNo">476</span> }<a name="line.476"></a>
-<span class="sourceLineNo">477</span><a name="line.477"></a>
-<span class="sourceLineNo">478</span> @Override<a name="line.478"></a>
-<span class="sourceLineNo">479</span> protected void serializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.479"></a>
-<span class="sourceLineNo">480</span> super.serializeStateData(serializer);<a name="line.480"></a>
-<span class="sourceLineNo">481</span> RegionStateTransitionStateData.Builder builder =<a name="line.481"></a>
-<span class="sourceLineNo">482</span> RegionStateTransitionStateData.newBuilder().setInitialState(initialState)<a name="line.482"></a>
-<span class="sourceLineNo">483</span> .setLastState(lastState).setForceNewPlan(forceNewPlan);<a name="line.483"></a>
-<span class="sourceLineNo">484</span> if (assignCandidate != null) {<a name="line.484"></a>
-<span class="sourceLineNo">485</span> builder.setAssignCandidate(ProtobufUtil.toServerName(assignCandidate));<a name="line.485"></a>
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+<span class="sourceLineNo">297</span> return env.getAssignmentManager().getRegionStates().getOrCreateRegionStateNode(getRegion());<a name="line.297"></a>
+<span class="sourceLineNo">298</span> }<a name="line.298"></a>
+<span class="sourceLineNo">299</span><a name="line.299"></a>
+<span class="sourceLineNo">300</span> @Override<a name="line.300"></a>
+<span class="sourceLineNo">301</span> protected Flow executeFromState(MasterProcedureEnv env, RegionStateTransitionState state)<a name="line.301"></a>
+<span class="sourceLineNo">302</span> throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException {<a name="line.302"></a>
+<span class="sourceLineNo">303</span> RegionStateNode regionNode = getRegionStateNode(env);<a name="line.303"></a>
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+<span class="sourceLineNo">305</span> // This is possible, and is the normal case, as we will call unsetProcedure in<a name="line.305"></a>
+<span class="sourceLineNo">306</span> // reportTransition, this means we have already done<a name="line.306"></a>
+<span class="sourceLineNo">307</span> // This is because that, when we mark the region as OPENED or CLOSED, then all the works<a name="line.307"></a>
+<span class="sourceLineNo">308</span> // should have already been done, and logically we could have another TRSP scheduled for this<a name="line.308"></a>
+<span class="sourceLineNo">309</span> // region immediately(think of a RS crash at the point...).<a name="line.309"></a>
+<span class="sourceLineNo">310</span> return Flow.NO_MORE_STATE;<a name="line.310"></a>
+<span class="sourceLineNo">311</span> }<a name="line.311"></a>
+<span class="sourceLineNo">312</span> try {<a name="line.312"></a>
+<span class="sourceLineNo">313</span> switch (state) {<a name="line.313"></a>
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+<span class="sourceLineNo">326</span> return confirmClosed(env, regionNode);<a name="line.326"></a>
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+<span class="sourceLineNo">328</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.328"></a>
+<span class="sourceLineNo">329</span> }<a name="line.329"></a>
+<span class="sourceLineNo">330</span> } catch (IOException e) {<a name="line.330"></a>
+<span class="sourceLineNo">331</span> long backoff = ProcedureUtil.getBackoffTimeMs(this.attempt++);<a name="line.331"></a>
+<span class="sourceLineNo">332</span> LOG.warn(<a name="line.332"></a>
+<span class="sourceLineNo">333</span> "Failed transition, suspend {}secs {}; {}; waiting on rectified condition fixed " +<a name="line.333"></a>
+<span class="sourceLineNo">334</span> "by other Procedure or operator intervention",<a name="line.334"></a>
+<span class="sourceLineNo">335</span> backoff / 1000, this, regionNode.toShortString(), e);<a name="line.335"></a>
+<span class="sourceLineNo">336</span> setTimeout(Math.toIntExact(backoff));<a name="line.336"></a>
+<span class="sourceLineNo">337</span> setState(ProcedureProtos.ProcedureState.WAITING_TIMEOUT);<a name="line.337"></a>
+<span class="sourceLineNo">338</span> skipPersistence();<a name="line.338"></a>
+<span class="sourceLineNo">339</span> throw new ProcedureSuspendedException();<a name="line.339"></a>
+<span class="sourceLineNo">340</span> }<a name="line.340"></a>
+<span class="sourceLineNo">341</span> }<a name="line.341"></a>
+<span class="sourceLineNo">342</span><a name="line.342"></a>
+<span class="sourceLineNo">343</span> /**<a name="line.343"></a>
+<span class="sourceLineNo">344</span> * At end of timeout, wake ourselves up so we run again.<a name="line.344"></a>
+<span class="sourceLineNo">345</span> */<a name="line.345"></a>
+<span class="sourceLineNo">346</span> @Override<a name="line.346"></a>
+<span class="sourceLineNo">347</span> protected synchronized boolean setTimeoutFailure(MasterProcedureEnv env) {<a name="line.347"></a>
+<span class="sourceLineNo">348</span> setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.348"></a>
+<span class="sourceLineNo">349</span> env.getProcedureScheduler().addFront(this);<a name="line.349"></a>
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+<span class="sourceLineNo">351</span> }<a name="line.351"></a>
+<span class="sourceLineNo">352</span><a name="line.352"></a>
+<span class="sourceLineNo">353</span> private boolean isOpening(RegionStateNode regionNode, ServerName serverName,<a name="line.353"></a>
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+<span class="sourceLineNo">356</span> LOG.warn("Received report {} transition from {} for {}, pid={}, but the region is not in" +<a name="line.356"></a>
+<span class="sourceLineNo">357</span> " OPENING state, should be a retry, ignore", code, serverName, regionNode, getProcId());<a name="line.357"></a>
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+<span class="sourceLineNo">359</span> }<a name="line.359"></a>
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+<span class="sourceLineNo">361</span> LOG.warn(<a name="line.361"></a>
+<span class="sourceLineNo">362</span> "Received report {} transition from {} for {}, pid={}," +<a name="line.362"></a>
+<span class="sourceLineNo">363</span> " but the TRSP is not in {} state, should be a retry, ignore",<a name="line.363"></a>
+<span class="sourceLineNo">364</span> code, serverName, regionNode, getProcId(), REGION_STATE_TRANSITION_CONFIRM_OPENED);<a name="line.364"></a>
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+<span class="sourceLineNo">366</span> }<a name="line.366"></a>
+<span class="sourceLineNo">367</span> return true;<a name="line.367"></a>
+<span class="sourceLineNo">368</span> }<a name="line.368"></a>
+<span class="sourceLineNo">369</span><a name="line.369"></a>
+<span class="sourceLineNo">370</span> private void reportTransitionOpen(MasterProcedureEnv env, RegionStateNode regionNode,<a name="line.370"></a>
+<span class="sourceLineNo">371</span> ServerName serverName, long openSeqNum) throws IOException {<a name="line.371"></a>
+<span class="sourceLineNo">372</span> if (!isOpening(regionNode, serverName, TransitionCode.OPENED)) {<a name="line.372"></a>
+<span class="sourceLineNo">373</span> return;<a name="line.373"></a>
+<span class="sourceLineNo">374</span> }<a name="line.374"></a>
+<span class="sourceLineNo">375</span> if (openSeqNum < 0) {<a name="line.375"></a>
+<span class="sourceLineNo">376</span> throw new UnexpectedStateException("Received report unexpected " + TransitionCode.OPENED +<a name="line.376"></a>
+<span class="sourceLineNo">377</span> " transition openSeqNum=" + openSeqNum + ", " + regionNode + ", proc=" + this);<a name="line.377"></a>
+<span class="sourceLineNo">378</span> }<a name="line.378"></a>
+<span class="source
<TRUNCATED>