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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.master.assignment;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Optional;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.ServerName;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.exceptions.UnexpectedStateException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.procedure2.ProcedureMetrics;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.procedure2.RemoteProcedureDispatcher.RemoteOperation;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionTransitionState;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.UnassignRegionStateData;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span><a name="line.34"></a> |
| <span class="sourceLineNo">035</span>/**<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * Leave here only for checking if we can successfully start the master.<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * @deprecated Do not use any more.<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * @see TransitRegionStateProcedure<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> */<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>@Deprecated<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>@InterfaceAudience.Private<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>public class UnassignProcedure extends RegionTransitionProcedure {<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span> protected volatile ServerName hostingServer;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span><a name="line.45"></a> |
| <span class="sourceLineNo">046</span> protected volatile ServerName destinationServer;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private boolean removeAfterUnassigning;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span><a name="line.49"></a> |
| <span class="sourceLineNo">050</span> public UnassignProcedure() {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> }<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> @Override<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> public TableOperationType getTableOperationType() {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> return TableOperationType.REGION_UNASSIGN;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> }<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> @Override<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> protected boolean isRollbackSupported(final RegionTransitionState state) {<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> switch (state) {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> case REGION_TRANSITION_QUEUE:<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> case REGION_TRANSITION_DISPATCH:<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> return true;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> default:<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> return false;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> }<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> }<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> @Override<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> protected void serializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> UnassignRegionStateData.Builder state =<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> UnassignRegionStateData.newBuilder().setTransitionState(getTransitionState())<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> .setHostingServer(ProtobufUtil.toServerName(this.hostingServer))<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> .setRegionInfo(ProtobufUtil.toRegionInfo(getRegionInfo()));<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> if (this.destinationServer != null) {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> state.setDestinationServer(ProtobufUtil.toServerName(destinationServer));<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> if (removeAfterUnassigning) {<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> state.setRemoveAfterUnassigning(true);<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> }<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> if (getAttempt() > 0) {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> state.setAttempt(getAttempt());<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> }<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> serializer.serialize(state.build());<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> }<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> @Override<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> protected void deserializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> final UnassignRegionStateData state = serializer.deserialize(UnassignRegionStateData.class);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> setTransitionState(state.getTransitionState());<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> setRegionInfo(ProtobufUtil.toRegionInfo(state.getRegionInfo()));<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> this.hostingServer = ProtobufUtil.toServerName(state.getHostingServer());<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> if (state.hasDestinationServer()) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> this.destinationServer = ProtobufUtil.toServerName(state.getDestinationServer());<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> removeAfterUnassigning = state.getRemoveAfterUnassigning();<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> if (state.hasAttempt()) {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> setAttempt(state.getAttempt());<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> }<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> }<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> @Override<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> protected boolean startTransition(final MasterProcedureEnv env,<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> final RegionStateNode regionNode) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // nothing to do here. we skip the step in the constructor<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> // by jumping to REGION_TRANSITION_DISPATCH<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> throw new UnsupportedOperationException();<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> @Override<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> protected boolean updateTransition(final MasterProcedureEnv env, final RegionStateNode regionNode)<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> throws IOException {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> return true;<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> }<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> @Override<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> protected void finishTransition(final MasterProcedureEnv env, final RegionStateNode regionNode)<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> throws IOException {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span><a name="line.120"></a> |
| <span class="sourceLineNo">121</span> @Override<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> public Optional<RemoteOperation> remoteCallBuild(final MasterProcedureEnv env,<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> final ServerName serverName) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> return Optional.empty();<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span><a name="line.126"></a> |
| <span class="sourceLineNo">127</span> @Override<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> protected void reportTransition(final MasterProcedureEnv env, final RegionStateNode regionNode,<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> final TransitionCode code, final long seqId) throws UnexpectedStateException {<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> /**<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * Returns If true, we will re-wake up this procedure; if false, the procedure stays suspended.<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 remoteCallFailed(final MasterProcedureEnv env, final RegionStateNode regionNode,<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> final IOException exception) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> return true;<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> }<a name="line.139"></a> |
| <span class="sourceLineNo">140</span><a name="line.140"></a> |
| <span class="sourceLineNo">141</span> @Override<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> public void toStringClassDetails(StringBuilder sb) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> super.toStringClassDetails(sb);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> sb.append(", server=").append(this.hostingServer);<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> @Override<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> protected ProcedureMetrics getProcedureMetrics(MasterProcedureEnv env) {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> return env.getAssignmentManager().getAssignmentManagerMetrics().getUnassignProcMetrics();<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span>}<a name="line.151"></a> |
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| </pre> |
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