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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.io.InterruptedIOException;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.List;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.concurrent.ExecutionException;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.concurrent.Future;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.concurrent.TimeoutException;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.client.RegionInfoBuilder;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.exceptions.TimeoutIOException;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.master.RegionState;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.master.assignment.RegionStateNode;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.master.assignment.RegionStates;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.procedure2.Procedure;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.quotas.MasterQuotaManager;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.yetus.audience.InterfaceStability;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.slf4j.Logger;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45">import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureState;</span> |
| <span class="source-line-no">046</span><span id="line-46"></span> |
| <span class="source-line-no">047</span><span id="line-47">/**</span> |
| <span class="source-line-no">048</span><span id="line-48"> * Helper to synchronously wait on conditions. This will be removed in the future (mainly when the</span> |
| <span class="source-line-no">049</span><span id="line-49"> * AssignmentManager will be replaced with a Procedure version) by using ProcedureYieldException,</span> |
| <span class="source-line-no">050</span><span id="line-50"> * and the queue will handle waiting and scheduling based on events.</span> |
| <span class="source-line-no">051</span><span id="line-51"> */</span> |
| <span class="source-line-no">052</span><span id="line-52">@InterfaceAudience.Private</span> |
| <span class="source-line-no">053</span><span id="line-53">@InterfaceStability.Evolving</span> |
| <span class="source-line-no">054</span><span id="line-54">public final class ProcedureSyncWait {</span> |
| <span class="source-line-no">055</span><span id="line-55"> private static final Logger LOG = LoggerFactory.getLogger(ProcedureSyncWait.class);</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> private ProcedureSyncWait() {</span> |
| <span class="source-line-no">058</span><span id="line-58"> }</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">061</span><span id="line-61"> public interface Predicate<T> {</span> |
| <span class="source-line-no">062</span><span id="line-62"> T evaluate() throws IOException;</span> |
| <span class="source-line-no">063</span><span id="line-63"> }</span> |
| <span class="source-line-no">064</span><span id="line-64"></span> |
| <span class="source-line-no">065</span><span id="line-65"> private static class ProcedureFuture implements Future<byte[]> {</span> |
| <span class="source-line-no">066</span><span id="line-66"> private final ProcedureExecutor<MasterProcedureEnv> procExec;</span> |
| <span class="source-line-no">067</span><span id="line-67"> private final Procedure<?> proc;</span> |
| <span class="source-line-no">068</span><span id="line-68"></span> |
| <span class="source-line-no">069</span><span id="line-69"> private boolean hasResult = false;</span> |
| <span class="source-line-no">070</span><span id="line-70"> private byte[] result = null;</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> public ProcedureFuture(ProcedureExecutor<MasterProcedureEnv> procExec, Procedure<?> proc) {</span> |
| <span class="source-line-no">073</span><span id="line-73"> this.procExec = procExec;</span> |
| <span class="source-line-no">074</span><span id="line-74"> this.proc = proc;</span> |
| <span class="source-line-no">075</span><span id="line-75"> }</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> @Override</span> |
| <span class="source-line-no">078</span><span id="line-78"> public boolean cancel(boolean mayInterruptIfRunning) {</span> |
| <span class="source-line-no">079</span><span id="line-79"> return false;</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> @Override</span> |
| <span class="source-line-no">083</span><span id="line-83"> public boolean isCancelled() {</span> |
| <span class="source-line-no">084</span><span id="line-84"> return false;</span> |
| <span class="source-line-no">085</span><span id="line-85"> }</span> |
| <span class="source-line-no">086</span><span id="line-86"></span> |
| <span class="source-line-no">087</span><span id="line-87"> @Override</span> |
| <span class="source-line-no">088</span><span id="line-88"> public boolean isDone() {</span> |
| <span class="source-line-no">089</span><span id="line-89"> return hasResult;</span> |
| <span class="source-line-no">090</span><span id="line-90"> }</span> |
| <span class="source-line-no">091</span><span id="line-91"></span> |
| <span class="source-line-no">092</span><span id="line-92"> @Override</span> |
| <span class="source-line-no">093</span><span id="line-93"> public byte[] get() throws InterruptedException, ExecutionException {</span> |
| <span class="source-line-no">094</span><span id="line-94"> if (hasResult) {</span> |
| <span class="source-line-no">095</span><span id="line-95"> return result;</span> |
| <span class="source-line-no">096</span><span id="line-96"> }</span> |
| <span class="source-line-no">097</span><span id="line-97"> try {</span> |
| <span class="source-line-no">098</span><span id="line-98"> return waitForProcedureToComplete(procExec, proc, Long.MAX_VALUE);</span> |
| <span class="source-line-no">099</span><span id="line-99"> } catch (Exception e) {</span> |
| <span class="source-line-no">100</span><span id="line-100"> throw new ExecutionException(e);</span> |
| <span class="source-line-no">101</span><span id="line-101"> }</span> |
| <span class="source-line-no">102</span><span id="line-102"> }</span> |
| <span class="source-line-no">103</span><span id="line-103"></span> |
| <span class="source-line-no">104</span><span id="line-104"> @Override</span> |
| <span class="source-line-no">105</span><span id="line-105"> public byte[] get(long timeout, TimeUnit unit)</span> |
| <span class="source-line-no">106</span><span id="line-106"> throws InterruptedException, ExecutionException, TimeoutException {</span> |
| <span class="source-line-no">107</span><span id="line-107"> if (hasResult) {</span> |
| <span class="source-line-no">108</span><span id="line-108"> return result;</span> |
| <span class="source-line-no">109</span><span id="line-109"> }</span> |
| <span class="source-line-no">110</span><span id="line-110"> try {</span> |
| <span class="source-line-no">111</span><span id="line-111"> result = waitForProcedureToComplete(procExec, proc, unit.toMillis(timeout));</span> |
| <span class="source-line-no">112</span><span id="line-112"> hasResult = true;</span> |
| <span class="source-line-no">113</span><span id="line-113"> return result;</span> |
| <span class="source-line-no">114</span><span id="line-114"> } catch (TimeoutIOException e) {</span> |
| <span class="source-line-no">115</span><span id="line-115"> throw new TimeoutException(e.getMessage());</span> |
| <span class="source-line-no">116</span><span id="line-116"> } catch (Exception e) {</span> |
| <span class="source-line-no">117</span><span id="line-117"> throw new ExecutionException(e);</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"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"></span> |
| <span class="source-line-no">122</span><span id="line-122"> public static Future<byte[]> submitProcedure(final ProcedureExecutor<MasterProcedureEnv> procExec,</span> |
| <span class="source-line-no">123</span><span id="line-123"> final Procedure<MasterProcedureEnv> proc) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> if (proc.isInitializing()) {</span> |
| <span class="source-line-no">125</span><span id="line-125"> procExec.submitProcedure(proc);</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</span> |
| <span class="source-line-no">127</span><span id="line-127"> return new ProcedureFuture(procExec, proc);</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"> public static byte[] submitAndWaitProcedure(ProcedureExecutor<MasterProcedureEnv> procExec,</span> |
| <span class="source-line-no">131</span><span id="line-131"> final Procedure<MasterProcedureEnv> proc) throws IOException {</span> |
| <span class="source-line-no">132</span><span id="line-132"> if (proc.isInitializing()) {</span> |
| <span class="source-line-no">133</span><span id="line-133"> procExec.submitProcedure(proc);</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"> return waitForProcedureToCompleteIOE(procExec, proc, Long.MAX_VALUE);</span> |
| <span class="source-line-no">136</span><span id="line-136"> }</span> |
| <span class="source-line-no">137</span><span id="line-137"></span> |
| <span class="source-line-no">138</span><span id="line-138"> public static byte[] waitForProcedureToCompleteIOE(</span> |
| <span class="source-line-no">139</span><span id="line-139"> final ProcedureExecutor<MasterProcedureEnv> procExec, final Procedure<?> proc,</span> |
| <span class="source-line-no">140</span><span id="line-140"> final long timeout) throws IOException {</span> |
| <span class="source-line-no">141</span><span id="line-141"> try {</span> |
| <span class="source-line-no">142</span><span id="line-142"> return waitForProcedureToComplete(procExec, proc, timeout);</span> |
| <span class="source-line-no">143</span><span id="line-143"> } catch (IOException e) {</span> |
| <span class="source-line-no">144</span><span id="line-144"> throw e;</span> |
| <span class="source-line-no">145</span><span id="line-145"> } catch (Exception e) {</span> |
| <span class="source-line-no">146</span><span id="line-146"> throw new IOException(e);</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"></span> |
| <span class="source-line-no">150</span><span id="line-150"> public static byte[] waitForProcedureToComplete(</span> |
| <span class="source-line-no">151</span><span id="line-151"> final ProcedureExecutor<MasterProcedureEnv> procExec, final Procedure<?> proc,</span> |
| <span class="source-line-no">152</span><span id="line-152"> final long timeout) throws IOException {</span> |
| <span class="source-line-no">153</span><span id="line-153"> waitFor(procExec.getEnvironment(), timeout, "pid=" + proc.getProcId(),</span> |
| <span class="source-line-no">154</span><span id="line-154"> new ProcedureSyncWait.Predicate<Boolean>() {</span> |
| <span class="source-line-no">155</span><span id="line-155"> @Override</span> |
| <span class="source-line-no">156</span><span id="line-156"> public Boolean evaluate() throws IOException {</span> |
| <span class="source-line-no">157</span><span id="line-157"> if (!procExec.isRunning()) {</span> |
| <span class="source-line-no">158</span><span id="line-158"> return true;</span> |
| <span class="source-line-no">159</span><span id="line-159"> }</span> |
| <span class="source-line-no">160</span><span id="line-160"> ProcedureState state = proc.getState();</span> |
| <span class="source-line-no">161</span><span id="line-161"> if (state == ProcedureState.INITIALIZING || state == ProcedureState.RUNNABLE) {</span> |
| <span class="source-line-no">162</span><span id="line-162"> // under these states the procedure may have not been added to procExec yet, so do not</span> |
| <span class="source-line-no">163</span><span id="line-163"> // use isFinished to test whether it is finished, as this method will just check if the</span> |
| <span class="source-line-no">164</span><span id="line-164"> // procedure is in the running procedure list</span> |
| <span class="source-line-no">165</span><span id="line-165"> return false;</span> |
| <span class="source-line-no">166</span><span id="line-166"> }</span> |
| <span class="source-line-no">167</span><span id="line-167"> return procExec.isFinished(proc.getProcId());</span> |
| <span class="source-line-no">168</span><span id="line-168"> }</span> |
| <span class="source-line-no">169</span><span id="line-169"> });</span> |
| <span class="source-line-no">170</span><span id="line-170"> if (!procExec.isRunning()) {</span> |
| <span class="source-line-no">171</span><span id="line-171"> throw new IOException("The Master is Aborting");</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"> // If the procedure fails, we should always have an exception captured. Throw it.</span> |
| <span class="source-line-no">175</span><span id="line-175"> // Needs to be an IOE to get out of here.</span> |
| <span class="source-line-no">176</span><span id="line-176"> if (proc.hasException()) {</span> |
| <span class="source-line-no">177</span><span id="line-177"> throw MasterProcedureUtil.unwrapRemoteIOException(proc);</span> |
| <span class="source-line-no">178</span><span id="line-178"> } else {</span> |
| <span class="source-line-no">179</span><span id="line-179"> return proc.getResult();</span> |
| <span class="source-line-no">180</span><span id="line-180"> }</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182"></span> |
| <span class="source-line-no">183</span><span id="line-183"> public static <T> T waitFor(MasterProcedureEnv env, String purpose, Predicate<T> predicate)</span> |
| <span class="source-line-no">184</span><span id="line-184"> throws IOException {</span> |
| <span class="source-line-no">185</span><span id="line-185"> Configuration conf = env.getMasterConfiguration();</span> |
| <span class="source-line-no">186</span><span id="line-186"> long waitTime = conf.getLong("hbase.master.wait.on.region", 5 * 60 * 1000);</span> |
| <span class="source-line-no">187</span><span id="line-187"> return waitFor(env, waitTime, purpose, predicate);</span> |
| <span class="source-line-no">188</span><span id="line-188"> }</span> |
| <span class="source-line-no">189</span><span id="line-189"></span> |
| <span class="source-line-no">190</span><span id="line-190"> public static <T> T waitFor(MasterProcedureEnv env, long waitTime, String purpose,</span> |
| <span class="source-line-no">191</span><span id="line-191"> Predicate<T> predicate) throws IOException {</span> |
| <span class="source-line-no">192</span><span id="line-192"> Configuration conf = env.getMasterConfiguration();</span> |
| <span class="source-line-no">193</span><span id="line-193"> long waitingTimeForEvents = conf.getInt("hbase.master.event.waiting.time", 1000);</span> |
| <span class="source-line-no">194</span><span id="line-194"> return waitFor(env, waitTime, waitingTimeForEvents, purpose, predicate);</span> |
| <span class="source-line-no">195</span><span id="line-195"> }</span> |
| <span class="source-line-no">196</span><span id="line-196"></span> |
| <span class="source-line-no">197</span><span id="line-197"> public static <T> T waitFor(MasterProcedureEnv env, long waitTime, long waitingTimeForEvents,</span> |
| <span class="source-line-no">198</span><span id="line-198"> String purpose, Predicate<T> predicate) throws IOException {</span> |
| <span class="source-line-no">199</span><span id="line-199"> long done = EnvironmentEdgeManager.currentTime() + waitTime;</span> |
| <span class="source-line-no">200</span><span id="line-200"> if (done <= 0) {</span> |
| <span class="source-line-no">201</span><span id="line-201"> // long overflow, usually this means we pass Long.MAX_VALUE as waitTime</span> |
| <span class="source-line-no">202</span><span id="line-202"> done = Long.MAX_VALUE;</span> |
| <span class="source-line-no">203</span><span id="line-203"> }</span> |
| <span class="source-line-no">204</span><span id="line-204"> boolean logged = false;</span> |
| <span class="source-line-no">205</span><span id="line-205"> do {</span> |
| <span class="source-line-no">206</span><span id="line-206"> T result = predicate.evaluate();</span> |
| <span class="source-line-no">207</span><span id="line-207"> if (result != null && !result.equals(Boolean.FALSE)) {</span> |
| <span class="source-line-no">208</span><span id="line-208"> return result;</span> |
| <span class="source-line-no">209</span><span id="line-209"> }</span> |
| <span class="source-line-no">210</span><span id="line-210"> try {</span> |
| <span class="source-line-no">211</span><span id="line-211"> Thread.sleep(waitingTimeForEvents);</span> |
| <span class="source-line-no">212</span><span id="line-212"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">213</span><span id="line-213"> LOG.warn("Interrupted while sleeping, waiting on " + purpose);</span> |
| <span class="source-line-no">214</span><span id="line-214"> throw (InterruptedIOException) new InterruptedIOException().initCause(e);</span> |
| <span class="source-line-no">215</span><span id="line-215"> }</span> |
| <span class="source-line-no">216</span><span id="line-216"> if (LOG.isTraceEnabled()) {</span> |
| <span class="source-line-no">217</span><span id="line-217"> LOG.trace("waitFor " + purpose);</span> |
| <span class="source-line-no">218</span><span id="line-218"> } else {</span> |
| <span class="source-line-no">219</span><span id="line-219"> if (!logged) LOG.debug("waitFor " + purpose);</span> |
| <span class="source-line-no">220</span><span id="line-220"> }</span> |
| <span class="source-line-no">221</span><span id="line-221"> logged = true;</span> |
| <span class="source-line-no">222</span><span id="line-222"> } while (EnvironmentEdgeManager.currentTime() < done && env.isRunning());</span> |
| <span class="source-line-no">223</span><span id="line-223"></span> |
| <span class="source-line-no">224</span><span id="line-224"> throw new TimeoutIOException("Timed out while waiting on " + purpose);</span> |
| <span class="source-line-no">225</span><span id="line-225"> }</span> |
| <span class="source-line-no">226</span><span id="line-226"></span> |
| <span class="source-line-no">227</span><span id="line-227"> protected static void waitMetaRegions(final MasterProcedureEnv env) throws IOException {</span> |
| <span class="source-line-no">228</span><span id="line-228"> int timeout = env.getMasterConfiguration().getInt("hbase.client.catalog.timeout", 10000);</span> |
| <span class="source-line-no">229</span><span id="line-229"> try {</span> |
| <span class="source-line-no">230</span><span id="line-230"> long start = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">231</span><span id="line-231"> for (;;) {</span> |
| <span class="source-line-no">232</span><span id="line-232"> RegionStateNode rsn = env.getAssignmentManager().getRegionStates()</span> |
| <span class="source-line-no">233</span><span id="line-233"> .getRegionStateNode(RegionInfoBuilder.FIRST_META_REGIONINFO);</span> |
| <span class="source-line-no">234</span><span id="line-234"> if (rsn != null && rsn.isInState(RegionState.State.OPEN)) {</span> |
| <span class="source-line-no">235</span><span id="line-235"> return;</span> |
| <span class="source-line-no">236</span><span id="line-236"> }</span> |
| <span class="source-line-no">237</span><span id="line-237"> if (EnvironmentEdgeManager.currentTime() - start >= timeout) {</span> |
| <span class="source-line-no">238</span><span id="line-238"> throw new NotAllMetaRegionsOnlineException();</span> |
| <span class="source-line-no">239</span><span id="line-239"> }</span> |
| <span class="source-line-no">240</span><span id="line-240"> Thread.sleep(HConstants.SOCKET_RETRY_WAIT_MS);</span> |
| <span class="source-line-no">241</span><span id="line-241"> }</span> |
| <span class="source-line-no">242</span><span id="line-242"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">243</span><span id="line-243"> throw (InterruptedIOException) new InterruptedIOException().initCause(e);</span> |
| <span class="source-line-no">244</span><span id="line-244"> }</span> |
| <span class="source-line-no">245</span><span id="line-245"> }</span> |
| <span class="source-line-no">246</span><span id="line-246"></span> |
| <span class="source-line-no">247</span><span id="line-247"> protected static void waitRegionInTransition(final MasterProcedureEnv env,</span> |
| <span class="source-line-no">248</span><span id="line-248"> final List<RegionInfo> regions) throws IOException {</span> |
| <span class="source-line-no">249</span><span id="line-249"> final RegionStates states = env.getAssignmentManager().getRegionStates();</span> |
| <span class="source-line-no">250</span><span id="line-250"> for (final RegionInfo region : regions) {</span> |
| <span class="source-line-no">251</span><span id="line-251"> ProcedureSyncWait.waitFor(env, "regions " + region.getRegionNameAsString() + " in transition",</span> |
| <span class="source-line-no">252</span><span id="line-252"> new ProcedureSyncWait.Predicate<Boolean>() {</span> |
| <span class="source-line-no">253</span><span id="line-253"> @Override</span> |
| <span class="source-line-no">254</span><span id="line-254"> public Boolean evaluate() throws IOException {</span> |
| <span class="source-line-no">255</span><span id="line-255"> return !states.isRegionInTransition(region);</span> |
| <span class="source-line-no">256</span><span id="line-256"> }</span> |
| <span class="source-line-no">257</span><span id="line-257"> });</span> |
| <span class="source-line-no">258</span><span id="line-258"> }</span> |
| <span class="source-line-no">259</span><span id="line-259"> }</span> |
| <span class="source-line-no">260</span><span id="line-260"></span> |
| <span class="source-line-no">261</span><span id="line-261"> protected static MasterQuotaManager getMasterQuotaManager(final MasterProcedureEnv env)</span> |
| <span class="source-line-no">262</span><span id="line-262"> throws IOException {</span> |
| <span class="source-line-no">263</span><span id="line-263"> return ProcedureSyncWait.waitFor(env, "quota manager to be available",</span> |
| <span class="source-line-no">264</span><span id="line-264"> new ProcedureSyncWait.Predicate<MasterQuotaManager>() {</span> |
| <span class="source-line-no">265</span><span id="line-265"> @Override</span> |
| <span class="source-line-no">266</span><span id="line-266"> public MasterQuotaManager evaluate() throws IOException {</span> |
| <span class="source-line-no">267</span><span id="line-267"> return env.getMasterServices().getMasterQuotaManager();</span> |
| <span class="source-line-no">268</span><span id="line-268"> }</span> |
| <span class="source-line-no">269</span><span id="line-269"> });</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
