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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.replication;</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.net.URI;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.ArrayList;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Collection;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.Collections;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.EnumSet;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.List;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.Map;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.UUID;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.concurrent.ThreadLocalRandom;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.Abortable;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.ClusterMetrics;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.HBaseConfiguration;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.ServerName;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.client.AsyncClusterConnection;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.client.AsyncRegionServerAdmin;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.client.ClusterConnectionFactory;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.client.ConnectionRegistryFactory;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.security.User;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.util.FutureUtils;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.util.ReservoirSample;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.slf4j.Logger;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46">import org.apache.hbase.thirdparty.com.google.common.collect.Maps;</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"> * A {@link BaseReplicationEndpoint} for replication endpoints whose target cluster is an HBase</span> |
| <span class="source-line-no">050</span><span id="line-50"> * cluster.</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">public abstract class HBaseReplicationEndpoint extends BaseReplicationEndpoint</span> |
| <span class="source-line-no">054</span><span id="line-54"> implements Abortable {</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> private static final Logger LOG = LoggerFactory.getLogger(HBaseReplicationEndpoint.class);</span> |
| <span class="source-line-no">057</span><span id="line-57"></span> |
| <span class="source-line-no">058</span><span id="line-58"> protected Configuration conf;</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> private URI clusterURI;</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> private final Object connLock = new Object();</span> |
| <span class="source-line-no">063</span><span id="line-63"></span> |
| <span class="source-line-no">064</span><span id="line-64"> private volatile AsyncClusterConnection conn;</span> |
| <span class="source-line-no">065</span><span id="line-65"></span> |
| <span class="source-line-no">066</span><span id="line-66"> /**</span> |
| <span class="source-line-no">067</span><span id="line-67"> * Default maximum number of times a replication sink can be reported as bad before it will no</span> |
| <span class="source-line-no">068</span><span id="line-68"> * longer be provided as a sink for replication without the pool of replication sinks being</span> |
| <span class="source-line-no">069</span><span id="line-69"> * refreshed.</span> |
| <span class="source-line-no">070</span><span id="line-70"> */</span> |
| <span class="source-line-no">071</span><span id="line-71"> public static final int DEFAULT_BAD_SINK_THRESHOLD = 3;</span> |
| <span class="source-line-no">072</span><span id="line-72"></span> |
| <span class="source-line-no">073</span><span id="line-73"> /**</span> |
| <span class="source-line-no">074</span><span id="line-74"> * Default ratio of the total number of peer cluster region servers to consider replicating to.</span> |
| <span class="source-line-no">075</span><span id="line-75"> */</span> |
| <span class="source-line-no">076</span><span id="line-76"> public static final float DEFAULT_REPLICATION_SOURCE_RATIO = 0.5f;</span> |
| <span class="source-line-no">077</span><span id="line-77"></span> |
| <span class="source-line-no">078</span><span id="line-78"> // Ratio of total number of potential peer region servers to be used</span> |
| <span class="source-line-no">079</span><span id="line-79"> private float ratio;</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> // Maximum number of times a sink can be reported as bad before the pool of</span> |
| <span class="source-line-no">082</span><span id="line-82"> // replication sinks is refreshed</span> |
| <span class="source-line-no">083</span><span id="line-83"> private int badSinkThreshold;</span> |
| <span class="source-line-no">084</span><span id="line-84"> // Count of "bad replication sink" reports per peer sink</span> |
| <span class="source-line-no">085</span><span id="line-85"> private Map<ServerName, Integer> badReportCounts;</span> |
| <span class="source-line-no">086</span><span id="line-86"></span> |
| <span class="source-line-no">087</span><span id="line-87"> private List<ServerName> sinkServers = new ArrayList<>(0);</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> /**</span> |
| <span class="source-line-no">090</span><span id="line-90"> * Some implementations of HBaseInterClusterReplicationEndpoint may require instantiate different</span> |
| <span class="source-line-no">091</span><span id="line-91"> * Connection implementations, or initialize it in a different way, so defining createConnection</span> |
| <span class="source-line-no">092</span><span id="line-92"> * as protected for possible overridings.</span> |
| <span class="source-line-no">093</span><span id="line-93"> */</span> |
| <span class="source-line-no">094</span><span id="line-94"> protected AsyncClusterConnection createConnection(URI clusterURI, Configuration conf)</span> |
| <span class="source-line-no">095</span><span id="line-95"> throws IOException {</span> |
| <span class="source-line-no">096</span><span id="line-96"> return ClusterConnectionFactory.createAsyncClusterConnection(clusterURI, conf, null,</span> |
| <span class="source-line-no">097</span><span id="line-97"> User.getCurrent());</span> |
| <span class="source-line-no">098</span><span id="line-98"> }</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> @Override</span> |
| <span class="source-line-no">101</span><span id="line-101"> public void init(Context context) throws IOException {</span> |
| <span class="source-line-no">102</span><span id="line-102"> super.init(context);</span> |
| <span class="source-line-no">103</span><span id="line-103"> this.conf = HBaseConfiguration.create(ctx.getConfiguration());</span> |
| <span class="source-line-no">104</span><span id="line-104"> this.clusterURI = ConnectionRegistryFactory</span> |
| <span class="source-line-no">105</span><span id="line-105"> .tryParseAsConnectionURI(context.getReplicationPeer().getPeerConfig().getClusterKey());</span> |
| <span class="source-line-no">106</span><span id="line-106"> this.ratio =</span> |
| <span class="source-line-no">107</span><span id="line-107"> ctx.getConfiguration().getFloat("replication.source.ratio", DEFAULT_REPLICATION_SOURCE_RATIO);</span> |
| <span class="source-line-no">108</span><span id="line-108"> this.badSinkThreshold =</span> |
| <span class="source-line-no">109</span><span id="line-109"> ctx.getConfiguration().getInt("replication.bad.sink.threshold", DEFAULT_BAD_SINK_THRESHOLD);</span> |
| <span class="source-line-no">110</span><span id="line-110"> this.badReportCounts = Maps.newHashMap();</span> |
| <span class="source-line-no">111</span><span id="line-111"> }</span> |
| <span class="source-line-no">112</span><span id="line-112"></span> |
| <span class="source-line-no">113</span><span id="line-113"> private void disconnect() {</span> |
| <span class="source-line-no">114</span><span id="line-114"> synchronized (connLock) {</span> |
| <span class="source-line-no">115</span><span id="line-115"> if (this.conn != null) {</span> |
| <span class="source-line-no">116</span><span id="line-116"> try {</span> |
| <span class="source-line-no">117</span><span id="line-117"> this.conn.close();</span> |
| <span class="source-line-no">118</span><span id="line-118"> this.conn = null;</span> |
| <span class="source-line-no">119</span><span id="line-119"> } catch (IOException e) {</span> |
| <span class="source-line-no">120</span><span id="line-120"> LOG.warn("{} Failed to close the connection", ctx.getPeerId());</span> |
| <span class="source-line-no">121</span><span id="line-121"> }</span> |
| <span class="source-line-no">122</span><span id="line-122"> }</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"></span> |
| <span class="source-line-no">126</span><span id="line-126"> @Override</span> |
| <span class="source-line-no">127</span><span id="line-127"> public void start() {</span> |
| <span class="source-line-no">128</span><span id="line-128"> startAsync();</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130"></span> |
| <span class="source-line-no">131</span><span id="line-131"> @Override</span> |
| <span class="source-line-no">132</span><span id="line-132"> public void stop() {</span> |
| <span class="source-line-no">133</span><span id="line-133"> stopAsync();</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"></span> |
| <span class="source-line-no">136</span><span id="line-136"> @Override</span> |
| <span class="source-line-no">137</span><span id="line-137"> protected void doStart() {</span> |
| <span class="source-line-no">138</span><span id="line-138"> notifyStarted();</span> |
| <span class="source-line-no">139</span><span id="line-139"> }</span> |
| <span class="source-line-no">140</span><span id="line-140"></span> |
| <span class="source-line-no">141</span><span id="line-141"> @Override</span> |
| <span class="source-line-no">142</span><span id="line-142"> protected void doStop() {</span> |
| <span class="source-line-no">143</span><span id="line-143"> disconnect();</span> |
| <span class="source-line-no">144</span><span id="line-144"> notifyStopped();</span> |
| <span class="source-line-no">145</span><span id="line-145"> }</span> |
| <span class="source-line-no">146</span><span id="line-146"></span> |
| <span class="source-line-no">147</span><span id="line-147"> @Override</span> |
| <span class="source-line-no">148</span><span id="line-148"> public UUID getPeerUUID() {</span> |
| <span class="source-line-no">149</span><span id="line-149"> try {</span> |
| <span class="source-line-no">150</span><span id="line-150"> AsyncClusterConnection conn = connect();</span> |
| <span class="source-line-no">151</span><span id="line-151"> String clusterId = FutureUtils</span> |
| <span class="source-line-no">152</span><span id="line-152"> .get(conn.getAdmin().getClusterMetrics(EnumSet.of(ClusterMetrics.Option.CLUSTER_ID)))</span> |
| <span class="source-line-no">153</span><span id="line-153"> .getClusterId();</span> |
| <span class="source-line-no">154</span><span id="line-154"> return UUID.fromString(clusterId);</span> |
| <span class="source-line-no">155</span><span id="line-155"> } catch (IOException e) {</span> |
| <span class="source-line-no">156</span><span id="line-156"> LOG.warn("Failed to get cluster id for cluster", e);</span> |
| <span class="source-line-no">157</span><span id="line-157"> return null;</span> |
| <span class="source-line-no">158</span><span id="line-158"> }</span> |
| <span class="source-line-no">159</span><span id="line-159"> }</span> |
| <span class="source-line-no">160</span><span id="line-160"></span> |
| <span class="source-line-no">161</span><span id="line-161"> // do not call this method in doStart method, only initialize the connection to remote cluster</span> |
| <span class="source-line-no">162</span><span id="line-162"> // when you actually wants to make use of it. The problem here is that, starting the replication</span> |
| <span class="source-line-no">163</span><span id="line-163"> // endpoint is part of the region server initialization work, so if the peer cluster is fully</span> |
| <span class="source-line-no">164</span><span id="line-164"> // down and we can not connect to it, we will cause the initialization to fail and crash the</span> |
| <span class="source-line-no">165</span><span id="line-165"> // region server, as we need the cluster id while setting up the AsyncClusterConnection, which</span> |
| <span class="source-line-no">166</span><span id="line-166"> // needs to at least connect to zookeeper or some other servers in the peer cluster based on</span> |
| <span class="source-line-no">167</span><span id="line-167"> // different connection registry implementation</span> |
| <span class="source-line-no">168</span><span id="line-168"> private AsyncClusterConnection connect() throws IOException {</span> |
| <span class="source-line-no">169</span><span id="line-169"> AsyncClusterConnection c = this.conn;</span> |
| <span class="source-line-no">170</span><span id="line-170"> if (c != null) {</span> |
| <span class="source-line-no">171</span><span id="line-171"> return c;</span> |
| <span class="source-line-no">172</span><span id="line-172"> }</span> |
| <span class="source-line-no">173</span><span id="line-173"> synchronized (connLock) {</span> |
| <span class="source-line-no">174</span><span id="line-174"> c = this.conn;</span> |
| <span class="source-line-no">175</span><span id="line-175"> if (c != null) {</span> |
| <span class="source-line-no">176</span><span id="line-176"> return c;</span> |
| <span class="source-line-no">177</span><span id="line-177"> }</span> |
| <span class="source-line-no">178</span><span id="line-178"> c = createConnection(clusterURI, conf);</span> |
| <span class="source-line-no">179</span><span id="line-179"> conn = c;</span> |
| <span class="source-line-no">180</span><span id="line-180"> }</span> |
| <span class="source-line-no">181</span><span id="line-181"> return c;</span> |
| <span class="source-line-no">182</span><span id="line-182"> }</span> |
| <span class="source-line-no">183</span><span id="line-183"></span> |
| <span class="source-line-no">184</span><span id="line-184"> @Override</span> |
| <span class="source-line-no">185</span><span id="line-185"> public void abort(String why, Throwable e) {</span> |
| <span class="source-line-no">186</span><span id="line-186"> LOG.error("The HBaseReplicationEndpoint corresponding to peer " + ctx.getPeerId()</span> |
| <span class="source-line-no">187</span><span id="line-187"> + " was aborted for the following reason(s):" + why, e);</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"> @Override</span> |
| <span class="source-line-no">191</span><span id="line-191"> public boolean isAborted() {</span> |
| <span class="source-line-no">192</span><span id="line-192"> // Currently this is never "Aborted", we just log when the abort method is called.</span> |
| <span class="source-line-no">193</span><span id="line-193"> return false;</span> |
| <span class="source-line-no">194</span><span id="line-194"> }</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"> * Get the list of all the region servers from the specified peer</span> |
| <span class="source-line-no">198</span><span id="line-198"> * @return list of region server addresses or an empty list if the slave is unavailable</span> |
| <span class="source-line-no">199</span><span id="line-199"> */</span> |
| <span class="source-line-no">200</span><span id="line-200"> // will be overrided in tests so protected</span> |
| <span class="source-line-no">201</span><span id="line-201"> protected Collection<ServerName> fetchPeerAddresses() {</span> |
| <span class="source-line-no">202</span><span id="line-202"> try {</span> |
| <span class="source-line-no">203</span><span id="line-203"> return FutureUtils.get(connect().getAdmin().getRegionServers(true));</span> |
| <span class="source-line-no">204</span><span id="line-204"> } catch (IOException e) {</span> |
| <span class="source-line-no">205</span><span id="line-205"> LOG.debug("Fetch peer addresses failed", e);</span> |
| <span class="source-line-no">206</span><span id="line-206"> return Collections.emptyList();</span> |
| <span class="source-line-no">207</span><span id="line-207"> }</span> |
| <span class="source-line-no">208</span><span id="line-208"> }</span> |
| <span class="source-line-no">209</span><span id="line-209"></span> |
| <span class="source-line-no">210</span><span id="line-210"> protected synchronized void chooseSinks() {</span> |
| <span class="source-line-no">211</span><span id="line-211"> Collection<ServerName> slaveAddresses = fetchPeerAddresses();</span> |
| <span class="source-line-no">212</span><span id="line-212"> if (slaveAddresses.isEmpty()) {</span> |
| <span class="source-line-no">213</span><span id="line-213"> LOG.warn("No sinks available at peer. Will not be able to replicate");</span> |
| <span class="source-line-no">214</span><span id="line-214"> this.sinkServers = Collections.emptyList();</span> |
| <span class="source-line-no">215</span><span id="line-215"> } else {</span> |
| <span class="source-line-no">216</span><span id="line-216"> int numSinks = (int) Math.ceil(slaveAddresses.size() * ratio);</span> |
| <span class="source-line-no">217</span><span id="line-217"> ReservoirSample<ServerName> sample = new ReservoirSample<>(numSinks);</span> |
| <span class="source-line-no">218</span><span id="line-218"> sample.add(slaveAddresses.iterator());</span> |
| <span class="source-line-no">219</span><span id="line-219"> this.sinkServers = sample.getSamplingResult();</span> |
| <span class="source-line-no">220</span><span id="line-220"> }</span> |
| <span class="source-line-no">221</span><span id="line-221"> badReportCounts.clear();</span> |
| <span class="source-line-no">222</span><span id="line-222"> }</span> |
| <span class="source-line-no">223</span><span id="line-223"></span> |
| <span class="source-line-no">224</span><span id="line-224"> protected synchronized int getNumSinks() {</span> |
| <span class="source-line-no">225</span><span id="line-225"> return sinkServers.size();</span> |
| <span class="source-line-no">226</span><span id="line-226"> }</span> |
| <span class="source-line-no">227</span><span id="line-227"></span> |
| <span class="source-line-no">228</span><span id="line-228"> /**</span> |
| <span class="source-line-no">229</span><span id="line-229"> * Get a randomly-chosen replication sink to replicate to.</span> |
| <span class="source-line-no">230</span><span id="line-230"> * @return a replication sink to replicate to</span> |
| <span class="source-line-no">231</span><span id="line-231"> */</span> |
| <span class="source-line-no">232</span><span id="line-232"> protected synchronized SinkPeer getReplicationSink() throws IOException {</span> |
| <span class="source-line-no">233</span><span id="line-233"> if (sinkServers.isEmpty()) {</span> |
| <span class="source-line-no">234</span><span id="line-234"> LOG.info("Current list of sinks is out of date or empty, updating");</span> |
| <span class="source-line-no">235</span><span id="line-235"> chooseSinks();</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 (sinkServers.isEmpty()) {</span> |
| <span class="source-line-no">238</span><span id="line-238"> throw new IOException("No replication sinks are available");</span> |
| <span class="source-line-no">239</span><span id="line-239"> }</span> |
| <span class="source-line-no">240</span><span id="line-240"> ServerName serverName =</span> |
| <span class="source-line-no">241</span><span id="line-241"> sinkServers.get(ThreadLocalRandom.current().nextInt(sinkServers.size()));</span> |
| <span class="source-line-no">242</span><span id="line-242"> return new SinkPeer(serverName, connect().getRegionServerAdmin(serverName));</span> |
| <span class="source-line-no">243</span><span id="line-243"> }</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"> * Report a {@code SinkPeer} as being bad (i.e. an attempt to replicate to it failed). If a single</span> |
| <span class="source-line-no">247</span><span id="line-247"> * SinkPeer is reported as bad more than replication.bad.sink.threshold times, it will be removed</span> |
| <span class="source-line-no">248</span><span id="line-248"> * from the pool of potential replication targets.</span> |
| <span class="source-line-no">249</span><span id="line-249"> * @param sinkPeer The SinkPeer that had a failed replication attempt on it</span> |
| <span class="source-line-no">250</span><span id="line-250"> */</span> |
| <span class="source-line-no">251</span><span id="line-251"> protected synchronized void reportBadSink(SinkPeer sinkPeer) {</span> |
| <span class="source-line-no">252</span><span id="line-252"> ServerName serverName = sinkPeer.getServerName();</span> |
| <span class="source-line-no">253</span><span id="line-253"> int badReportCount = badReportCounts.compute(serverName, (k, v) -> v == null ? 1 : v + 1);</span> |
| <span class="source-line-no">254</span><span id="line-254"> if (badReportCount > badSinkThreshold) {</span> |
| <span class="source-line-no">255</span><span id="line-255"> this.sinkServers.remove(serverName);</span> |
| <span class="source-line-no">256</span><span id="line-256"> if (sinkServers.isEmpty()) {</span> |
| <span class="source-line-no">257</span><span id="line-257"> chooseSinks();</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"></span> |
| <span class="source-line-no">262</span><span id="line-262"> /**</span> |
| <span class="source-line-no">263</span><span id="line-263"> * Report that a {@code SinkPeer} successfully replicated a chunk of data. The SinkPeer that had a</span> |
| <span class="source-line-no">264</span><span id="line-264"> * failed replication attempt on it</span> |
| <span class="source-line-no">265</span><span id="line-265"> */</span> |
| <span class="source-line-no">266</span><span id="line-266"> protected synchronized void reportSinkSuccess(SinkPeer sinkPeer) {</span> |
| <span class="source-line-no">267</span><span id="line-267"> badReportCounts.remove(sinkPeer.getServerName());</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"> List<ServerName> getSinkServers() {</span> |
| <span class="source-line-no">271</span><span id="line-271"> return sinkServers;</span> |
| <span class="source-line-no">272</span><span id="line-272"> }</span> |
| <span class="source-line-no">273</span><span id="line-273"></span> |
| <span class="source-line-no">274</span><span id="line-274"> /**</span> |
| <span class="source-line-no">275</span><span id="line-275"> * Wraps a replication region server sink to provide the ability to identify it.</span> |
| <span class="source-line-no">276</span><span id="line-276"> */</span> |
| <span class="source-line-no">277</span><span id="line-277"> public static class SinkPeer {</span> |
| <span class="source-line-no">278</span><span id="line-278"> private ServerName serverName;</span> |
| <span class="source-line-no">279</span><span id="line-279"> private AsyncRegionServerAdmin regionServer;</span> |
| <span class="source-line-no">280</span><span id="line-280"></span> |
| <span class="source-line-no">281</span><span id="line-281"> public SinkPeer(ServerName serverName, AsyncRegionServerAdmin regionServer) {</span> |
| <span class="source-line-no">282</span><span id="line-282"> this.serverName = serverName;</span> |
| <span class="source-line-no">283</span><span id="line-283"> this.regionServer = regionServer;</span> |
| <span class="source-line-no">284</span><span id="line-284"> }</span> |
| <span class="source-line-no">285</span><span id="line-285"></span> |
| <span class="source-line-no">286</span><span id="line-286"> ServerName getServerName() {</span> |
| <span class="source-line-no">287</span><span id="line-287"> return serverName;</span> |
| <span class="source-line-no">288</span><span id="line-288"> }</span> |
| <span class="source-line-no">289</span><span id="line-289"></span> |
| <span class="source-line-no">290</span><span id="line-290"> public AsyncRegionServerAdmin getRegionServer() {</span> |
| <span class="source-line-no">291</span><span id="line-291"> return regionServer;</span> |
| <span class="source-line-no">292</span><span id="line-292"> }</span> |
| <span class="source-line-no">293</span><span id="line-293"> }</span> |
| <span class="source-line-no">294</span><span id="line-294">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
