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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.master.procedure;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.Objects;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.hbase.NamespaceDescriptor;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.NamespaceNotFoundException;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.rsgroup.RSGroupInfo;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.slf4j.Logger;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">029</span><span id="line-29"></span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.ModifyNamespaceState;</span> |
| <span class="source-line-no">033</span><span id="line-33"></span> |
| <span class="source-line-no">034</span><span id="line-34">/**</span> |
| <span class="source-line-no">035</span><span id="line-35"> * The procedure to add a namespace to an existing table.</span> |
| <span class="source-line-no">036</span><span id="line-36"> */</span> |
| <span class="source-line-no">037</span><span id="line-37">@InterfaceAudience.Private</span> |
| <span class="source-line-no">038</span><span id="line-38">public class ModifyNamespaceProcedure</span> |
| <span class="source-line-no">039</span><span id="line-39"> extends AbstractStateMachineNamespaceProcedure<ModifyNamespaceState> {</span> |
| <span class="source-line-no">040</span><span id="line-40"> private static final Logger LOG = LoggerFactory.getLogger(ModifyNamespaceProcedure.class);</span> |
| <span class="source-line-no">041</span><span id="line-41"></span> |
| <span class="source-line-no">042</span><span id="line-42"> private NamespaceDescriptor oldNsDescriptor;</span> |
| <span class="source-line-no">043</span><span id="line-43"> private NamespaceDescriptor newNsDescriptor;</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> public ModifyNamespaceProcedure() {</span> |
| <span class="source-line-no">046</span><span id="line-46"> this.oldNsDescriptor = null;</span> |
| <span class="source-line-no">047</span><span id="line-47"> }</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> public ModifyNamespaceProcedure(final MasterProcedureEnv env,</span> |
| <span class="source-line-no">050</span><span id="line-50"> final NamespaceDescriptor newNsDescriptor) {</span> |
| <span class="source-line-no">051</span><span id="line-51"> this(env, newNsDescriptor, null);</span> |
| <span class="source-line-no">052</span><span id="line-52"> }</span> |
| <span class="source-line-no">053</span><span id="line-53"></span> |
| <span class="source-line-no">054</span><span id="line-54"> public ModifyNamespaceProcedure(final MasterProcedureEnv env,</span> |
| <span class="source-line-no">055</span><span id="line-55"> final NamespaceDescriptor newNsDescriptor, final ProcedurePrepareLatch latch) {</span> |
| <span class="source-line-no">056</span><span id="line-56"> super(env, latch);</span> |
| <span class="source-line-no">057</span><span id="line-57"> this.oldNsDescriptor = null;</span> |
| <span class="source-line-no">058</span><span id="line-58"> this.newNsDescriptor = newNsDescriptor;</span> |
| <span class="source-line-no">059</span><span id="line-59"> }</span> |
| <span class="source-line-no">060</span><span id="line-60"></span> |
| <span class="source-line-no">061</span><span id="line-61"> @Override</span> |
| <span class="source-line-no">062</span><span id="line-62"> protected Flow executeFromState(final MasterProcedureEnv env, final ModifyNamespaceState state)</span> |
| <span class="source-line-no">063</span><span id="line-63"> throws InterruptedException {</span> |
| <span class="source-line-no">064</span><span id="line-64"> LOG.trace("{} execute state={}", this, state);</span> |
| <span class="source-line-no">065</span><span id="line-65"> try {</span> |
| <span class="source-line-no">066</span><span id="line-66"> switch (state) {</span> |
| <span class="source-line-no">067</span><span id="line-67"> case MODIFY_NAMESPACE_PREPARE:</span> |
| <span class="source-line-no">068</span><span id="line-68"> boolean success = prepareModify(env);</span> |
| <span class="source-line-no">069</span><span id="line-69"> releaseSyncLatch();</span> |
| <span class="source-line-no">070</span><span id="line-70"> if (!success) {</span> |
| <span class="source-line-no">071</span><span id="line-71"> assert isFailed() : "Modify namespace should have an exception here";</span> |
| <span class="source-line-no">072</span><span id="line-72"> return Flow.NO_MORE_STATE;</span> |
| <span class="source-line-no">073</span><span id="line-73"> }</span> |
| <span class="source-line-no">074</span><span id="line-74"> setNextState(ModifyNamespaceState.MODIFY_NAMESPACE_UPDATE_NS_TABLE);</span> |
| <span class="source-line-no">075</span><span id="line-75"> break;</span> |
| <span class="source-line-no">076</span><span id="line-76"> case MODIFY_NAMESPACE_UPDATE_NS_TABLE:</span> |
| <span class="source-line-no">077</span><span id="line-77"> addOrUpdateNamespace(env, newNsDescriptor);</span> |
| <span class="source-line-no">078</span><span id="line-78"> return Flow.NO_MORE_STATE;</span> |
| <span class="source-line-no">079</span><span id="line-79"> case MODIFY_NAMESPACE_UPDATE_ZK:</span> |
| <span class="source-line-no">080</span><span id="line-80"> // not used any more</span> |
| <span class="source-line-no">081</span><span id="line-81"> return Flow.NO_MORE_STATE;</span> |
| <span class="source-line-no">082</span><span id="line-82"> default:</span> |
| <span class="source-line-no">083</span><span id="line-83"> throw new UnsupportedOperationException(this + " unhandled state=" + state);</span> |
| <span class="source-line-no">084</span><span id="line-84"> }</span> |
| <span class="source-line-no">085</span><span id="line-85"> } catch (IOException e) {</span> |
| <span class="source-line-no">086</span><span id="line-86"> if (isRollbackSupported(state)) {</span> |
| <span class="source-line-no">087</span><span id="line-87"> setFailure("master-modify-namespace", e);</span> |
| <span class="source-line-no">088</span><span id="line-88"> } else {</span> |
| <span class="source-line-no">089</span><span id="line-89"> LOG.warn("Retriable error trying to modify namespace=" + newNsDescriptor.getName()</span> |
| <span class="source-line-no">090</span><span id="line-90"> + " (in state=" + state + ")", e);</span> |
| <span class="source-line-no">091</span><span id="line-91"> }</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"> return Flow.HAS_MORE_STATE;</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"></span> |
| <span class="source-line-no">096</span><span id="line-96"> @Override</span> |
| <span class="source-line-no">097</span><span id="line-97"> protected void rollbackState(final MasterProcedureEnv env, final ModifyNamespaceState state)</span> |
| <span class="source-line-no">098</span><span id="line-98"> throws IOException {</span> |
| <span class="source-line-no">099</span><span id="line-99"> if (state == ModifyNamespaceState.MODIFY_NAMESPACE_PREPARE) {</span> |
| <span class="source-line-no">100</span><span id="line-100"> // nothing to rollback, pre-modify is just checks.</span> |
| <span class="source-line-no">101</span><span id="line-101"> // TODO: coprocessor rollback semantic is still undefined.</span> |
| <span class="source-line-no">102</span><span id="line-102"> releaseSyncLatch();</span> |
| <span class="source-line-no">103</span><span id="line-103"> return;</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"></span> |
| <span class="source-line-no">106</span><span id="line-106"> // The procedure doesn't have a rollback. The execution will succeed, at some point.</span> |
| <span class="source-line-no">107</span><span id="line-107"> throw new UnsupportedOperationException("unhandled state=" + state);</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> @Override</span> |
| <span class="source-line-no">111</span><span id="line-111"> protected boolean isRollbackSupported(ModifyNamespaceState state) {</span> |
| <span class="source-line-no">112</span><span id="line-112"> switch (state) {</span> |
| <span class="source-line-no">113</span><span id="line-113"> case MODIFY_NAMESPACE_PREPARE:</span> |
| <span class="source-line-no">114</span><span id="line-114"> return true;</span> |
| <span class="source-line-no">115</span><span id="line-115"> default:</span> |
| <span class="source-line-no">116</span><span id="line-116"> return false;</span> |
| <span class="source-line-no">117</span><span id="line-117"> }</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> @Override</span> |
| <span class="source-line-no">121</span><span id="line-121"> protected ModifyNamespaceState getState(int stateId) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> return ModifyNamespaceState.forNumber(stateId);</span> |
| <span class="source-line-no">123</span><span id="line-123"> }</span> |
| <span class="source-line-no">124</span><span id="line-124"></span> |
| <span class="source-line-no">125</span><span id="line-125"> @Override</span> |
| <span class="source-line-no">126</span><span id="line-126"> protected int getStateId(ModifyNamespaceState state) {</span> |
| <span class="source-line-no">127</span><span id="line-127"> return state.getNumber();</span> |
| <span class="source-line-no">128</span><span id="line-128"> }</span> |
| <span class="source-line-no">129</span><span id="line-129"></span> |
| <span class="source-line-no">130</span><span id="line-130"> @Override</span> |
| <span class="source-line-no">131</span><span id="line-131"> protected ModifyNamespaceState getInitialState() {</span> |
| <span class="source-line-no">132</span><span id="line-132"> return ModifyNamespaceState.MODIFY_NAMESPACE_PREPARE;</span> |
| <span class="source-line-no">133</span><span id="line-133"> }</span> |
| <span class="source-line-no">134</span><span id="line-134"></span> |
| <span class="source-line-no">135</span><span id="line-135"> @Override</span> |
| <span class="source-line-no">136</span><span id="line-136"> protected void serializeStateData(ProcedureStateSerializer serializer) throws IOException {</span> |
| <span class="source-line-no">137</span><span id="line-137"> super.serializeStateData(serializer);</span> |
| <span class="source-line-no">138</span><span id="line-138"></span> |
| <span class="source-line-no">139</span><span id="line-139"> MasterProcedureProtos.ModifyNamespaceStateData.Builder modifyNamespaceMsg =</span> |
| <span class="source-line-no">140</span><span id="line-140"> MasterProcedureProtos.ModifyNamespaceStateData.newBuilder()</span> |
| <span class="source-line-no">141</span><span id="line-141"> .setNamespaceDescriptor(ProtobufUtil.toProtoNamespaceDescriptor(this.newNsDescriptor));</span> |
| <span class="source-line-no">142</span><span id="line-142"> if (this.oldNsDescriptor != null) {</span> |
| <span class="source-line-no">143</span><span id="line-143"> modifyNamespaceMsg.setUnmodifiedNamespaceDescriptor(</span> |
| <span class="source-line-no">144</span><span id="line-144"> ProtobufUtil.toProtoNamespaceDescriptor(this.oldNsDescriptor));</span> |
| <span class="source-line-no">145</span><span id="line-145"> }</span> |
| <span class="source-line-no">146</span><span id="line-146"> serializer.serialize(modifyNamespaceMsg.build());</span> |
| <span class="source-line-no">147</span><span id="line-147"> }</span> |
| <span class="source-line-no">148</span><span id="line-148"></span> |
| <span class="source-line-no">149</span><span id="line-149"> @Override</span> |
| <span class="source-line-no">150</span><span id="line-150"> protected void deserializeStateData(ProcedureStateSerializer serializer) throws IOException {</span> |
| <span class="source-line-no">151</span><span id="line-151"> super.deserializeStateData(serializer);</span> |
| <span class="source-line-no">152</span><span id="line-152"></span> |
| <span class="source-line-no">153</span><span id="line-153"> MasterProcedureProtos.ModifyNamespaceStateData modifyNamespaceMsg =</span> |
| <span class="source-line-no">154</span><span id="line-154"> serializer.deserialize(MasterProcedureProtos.ModifyNamespaceStateData.class);</span> |
| <span class="source-line-no">155</span><span id="line-155"> newNsDescriptor =</span> |
| <span class="source-line-no">156</span><span id="line-156"> ProtobufUtil.toNamespaceDescriptor(modifyNamespaceMsg.getNamespaceDescriptor());</span> |
| <span class="source-line-no">157</span><span id="line-157"> if (modifyNamespaceMsg.hasUnmodifiedNamespaceDescriptor()) {</span> |
| <span class="source-line-no">158</span><span id="line-158"> oldNsDescriptor =</span> |
| <span class="source-line-no">159</span><span id="line-159"> ProtobufUtil.toNamespaceDescriptor(modifyNamespaceMsg.getUnmodifiedNamespaceDescriptor());</span> |
| <span class="source-line-no">160</span><span id="line-160"> }</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"></span> |
| <span class="source-line-no">163</span><span id="line-163"> @Override</span> |
| <span class="source-line-no">164</span><span id="line-164"> public TableOperationType getTableOperationType() {</span> |
| <span class="source-line-no">165</span><span id="line-165"> return TableOperationType.EDIT;</span> |
| <span class="source-line-no">166</span><span id="line-166"> }</span> |
| <span class="source-line-no">167</span><span id="line-167"></span> |
| <span class="source-line-no">168</span><span id="line-168"> @Override</span> |
| <span class="source-line-no">169</span><span id="line-169"> protected String getNamespaceName() {</span> |
| <span class="source-line-no">170</span><span id="line-170"> return newNsDescriptor.getName();</span> |
| <span class="source-line-no">171</span><span id="line-171"> }</span> |
| <span class="source-line-no">172</span><span id="line-172"></span> |
| <span class="source-line-no">173</span><span id="line-173"> /**</span> |
| <span class="source-line-no">174</span><span id="line-174"> * Action before any real action of adding namespace.</span> |
| <span class="source-line-no">175</span><span id="line-175"> */</span> |
| <span class="source-line-no">176</span><span id="line-176"> private boolean prepareModify(final MasterProcedureEnv env) throws IOException {</span> |
| <span class="source-line-no">177</span><span id="line-177"> if (!getTableNamespaceManager(env).doesNamespaceExist(newNsDescriptor.getName())) {</span> |
| <span class="source-line-no">178</span><span id="line-178"> setFailure("master-modify-namespace",</span> |
| <span class="source-line-no">179</span><span id="line-179"> new NamespaceNotFoundException(newNsDescriptor.getName()));</span> |
| <span class="source-line-no">180</span><span id="line-180"> return false;</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182"> getTableNamespaceManager(env).validateTableAndRegionCount(newNsDescriptor);</span> |
| <span class="source-line-no">183</span><span id="line-183"></span> |
| <span class="source-line-no">184</span><span id="line-184"> // This is used for rollback</span> |
| <span class="source-line-no">185</span><span id="line-185"> oldNsDescriptor = getTableNamespaceManager(env).get(newNsDescriptor.getName());</span> |
| <span class="source-line-no">186</span><span id="line-186"> if (</span> |
| <span class="source-line-no">187</span><span id="line-187"> !Objects.equals(oldNsDescriptor.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP),</span> |
| <span class="source-line-no">188</span><span id="line-188"> newNsDescriptor.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP))</span> |
| <span class="source-line-no">189</span><span id="line-189"> ) {</span> |
| <span class="source-line-no">190</span><span id="line-190"> checkNamespaceRSGroup(env, newNsDescriptor);</span> |
| <span class="source-line-no">191</span><span id="line-191"> }</span> |
| <span class="source-line-no">192</span><span id="line-192"> return true;</span> |
| <span class="source-line-no">193</span><span id="line-193"> }</span> |
| <span class="source-line-no">194</span><span id="line-194">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |