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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.Optional;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.function.Supplier;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.regex.Pattern;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.DoNotRetryIOException;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.NamespaceDescriptor;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.constraint.ConstraintException;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.master.MasterServices;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.procedure2.Procedure;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.procedure2.ProcedureException;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.rsgroup.RSGroupInfo;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.security.User;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.util.NonceKey;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.security.UserGroupInformation;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.yetus.audience.InterfaceStability;</span> |
| <span class="source-line-no">038</span><span id="line-38"></span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.UserInformation;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41">@InterfaceAudience.Private</span> |
| <span class="source-line-no">042</span><span id="line-42">@InterfaceStability.Evolving</span> |
| <span class="source-line-no">043</span><span id="line-43">public final class MasterProcedureUtil {</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> private MasterProcedureUtil() {</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"> public static UserInformation toProtoUserInfo(User user) {</span> |
| <span class="source-line-no">049</span><span id="line-49"> UserInformation.Builder userInfoPB = UserInformation.newBuilder();</span> |
| <span class="source-line-no">050</span><span id="line-50"> userInfoPB.setEffectiveUser(user.getName());</span> |
| <span class="source-line-no">051</span><span id="line-51"> if (user.getUGI().getRealUser() != null) {</span> |
| <span class="source-line-no">052</span><span id="line-52"> userInfoPB.setRealUser(user.getUGI().getRealUser().getUserName());</span> |
| <span class="source-line-no">053</span><span id="line-53"> }</span> |
| <span class="source-line-no">054</span><span id="line-54"> return userInfoPB.build();</span> |
| <span class="source-line-no">055</span><span id="line-55"> }</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> public static User toUserInfo(UserInformation userInfoProto) {</span> |
| <span class="source-line-no">058</span><span id="line-58"> if (userInfoProto.hasEffectiveUser()) {</span> |
| <span class="source-line-no">059</span><span id="line-59"> String effectiveUser = userInfoProto.getEffectiveUser();</span> |
| <span class="source-line-no">060</span><span id="line-60"> if (userInfoProto.hasRealUser()) {</span> |
| <span class="source-line-no">061</span><span id="line-61"> String realUser = userInfoProto.getRealUser();</span> |
| <span class="source-line-no">062</span><span id="line-62"> UserGroupInformation realUserUgi = UserGroupInformation.createRemoteUser(realUser);</span> |
| <span class="source-line-no">063</span><span id="line-63"> return User.create(UserGroupInformation.createProxyUser(effectiveUser, realUserUgi));</span> |
| <span class="source-line-no">064</span><span id="line-64"> }</span> |
| <span class="source-line-no">065</span><span id="line-65"> return User.create(UserGroupInformation.createRemoteUser(effectiveUser));</span> |
| <span class="source-line-no">066</span><span id="line-66"> }</span> |
| <span class="source-line-no">067</span><span id="line-67"> return null;</span> |
| <span class="source-line-no">068</span><span id="line-68"> }</span> |
| <span class="source-line-no">069</span><span id="line-69"></span> |
| <span class="source-line-no">070</span><span id="line-70"> /**</span> |
| <span class="source-line-no">071</span><span id="line-71"> * Helper Runnable used in conjunction with submitProcedure() to deal with submitting procs with</span> |
| <span class="source-line-no">072</span><span id="line-72"> * nonce. See submitProcedure() for an example.</span> |
| <span class="source-line-no">073</span><span id="line-73"> */</span> |
| <span class="source-line-no">074</span><span id="line-74"> public static abstract class NonceProcedureRunnable {</span> |
| <span class="source-line-no">075</span><span id="line-75"> private final MasterServices master;</span> |
| <span class="source-line-no">076</span><span id="line-76"> private final NonceKey nonceKey;</span> |
| <span class="source-line-no">077</span><span id="line-77"> private Long procId;</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> public NonceProcedureRunnable(final MasterServices master, final long nonceGroup,</span> |
| <span class="source-line-no">080</span><span id="line-80"> final long nonce) {</span> |
| <span class="source-line-no">081</span><span id="line-81"> this.master = master;</span> |
| <span class="source-line-no">082</span><span id="line-82"> this.nonceKey = getProcedureExecutor().createNonceKey(nonceGroup, nonce);</span> |
| <span class="source-line-no">083</span><span id="line-83"> }</span> |
| <span class="source-line-no">084</span><span id="line-84"></span> |
| <span class="source-line-no">085</span><span id="line-85"> protected NonceKey getNonceKey() {</span> |
| <span class="source-line-no">086</span><span id="line-86"> return nonceKey;</span> |
| <span class="source-line-no">087</span><span id="line-87"> }</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> protected MasterServices getMaster() {</span> |
| <span class="source-line-no">090</span><span id="line-90"> return master;</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"> protected ProcedureExecutor<MasterProcedureEnv> getProcedureExecutor() {</span> |
| <span class="source-line-no">094</span><span id="line-94"> return master.getMasterProcedureExecutor();</span> |
| <span class="source-line-no">095</span><span id="line-95"> }</span> |
| <span class="source-line-no">096</span><span id="line-96"></span> |
| <span class="source-line-no">097</span><span id="line-97"> protected long getProcId() {</span> |
| <span class="source-line-no">098</span><span id="line-98"> return procId != null ? procId.longValue() : -1;</span> |
| <span class="source-line-no">099</span><span id="line-99"> }</span> |
| <span class="source-line-no">100</span><span id="line-100"></span> |
| <span class="source-line-no">101</span><span id="line-101"> protected long setProcId(final long procId) {</span> |
| <span class="source-line-no">102</span><span id="line-102"> this.procId = procId;</span> |
| <span class="source-line-no">103</span><span id="line-103"> return procId;</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"> protected abstract void run() throws IOException;</span> |
| <span class="source-line-no">107</span><span id="line-107"></span> |
| <span class="source-line-no">108</span><span id="line-108"> protected abstract String getDescription();</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> protected long submitProcedure(final Procedure<MasterProcedureEnv> proc) {</span> |
| <span class="source-line-no">111</span><span id="line-111"> assert procId == null : "submitProcedure() was already called, running procId=" + procId;</span> |
| <span class="source-line-no">112</span><span id="line-112"> procId = getProcedureExecutor().submitProcedure(proc, nonceKey);</span> |
| <span class="source-line-no">113</span><span id="line-113"> return procId;</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"> }</span> |
| <span class="source-line-no">116</span><span id="line-116"></span> |
| <span class="source-line-no">117</span><span id="line-117"> /**</span> |
| <span class="source-line-no">118</span><span id="line-118"> * Helper used to deal with submitting procs with nonce. Internally the</span> |
| <span class="source-line-no">119</span><span id="line-119"> * NonceProcedureRunnable.run() will be called only if no one else registered the nonce. any</span> |
| <span class="source-line-no">120</span><span id="line-120"> * Exception thrown by the run() method will be collected/handled and rethrown. <code></span> |
| <span class="source-line-no">121</span><span id="line-121"> * long procId = MasterProcedureUtil.submitProcedure(</span> |
| <span class="source-line-no">122</span><span id="line-122"> * new NonceProcedureRunnable(procExec, nonceGroup, nonce) {</span> |
| <span class="source-line-no">123</span><span id="line-123"> * {@literal @}Override</span> |
| <span class="source-line-no">124</span><span id="line-124"> * public void run() {</span> |
| <span class="source-line-no">125</span><span id="line-125"> * cpHost.preOperation();</span> |
| <span class="source-line-no">126</span><span id="line-126"> * submitProcedure(new MyProc());</span> |
| <span class="source-line-no">127</span><span id="line-127"> * cpHost.postOperation();</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"> * </code></span> |
| <span class="source-line-no">131</span><span id="line-131"> */</span> |
| <span class="source-line-no">132</span><span id="line-132"> public static long submitProcedure(final NonceProcedureRunnable runnable) throws IOException {</span> |
| <span class="source-line-no">133</span><span id="line-133"> final ProcedureExecutor<MasterProcedureEnv> procExec = runnable.getProcedureExecutor();</span> |
| <span class="source-line-no">134</span><span id="line-134"> final long procId = procExec.registerNonce(runnable.getNonceKey());</span> |
| <span class="source-line-no">135</span><span id="line-135"> if (procId >= 0) return procId; // someone already registered the nonce</span> |
| <span class="source-line-no">136</span><span id="line-136"> try {</span> |
| <span class="source-line-no">137</span><span id="line-137"> runnable.run();</span> |
| <span class="source-line-no">138</span><span id="line-138"> } catch (IOException e) {</span> |
| <span class="source-line-no">139</span><span id="line-139"> procExec.setFailureResultForNonce(runnable.getNonceKey(), runnable.getDescription(),</span> |
| <span class="source-line-no">140</span><span id="line-140"> procExec.getEnvironment().getRequestUser(), e);</span> |
| <span class="source-line-no">141</span><span id="line-141"> throw e;</span> |
| <span class="source-line-no">142</span><span id="line-142"> } finally {</span> |
| <span class="source-line-no">143</span><span id="line-143"> procExec.unregisterNonceIfProcedureWasNotSubmitted(runnable.getNonceKey());</span> |
| <span class="source-line-no">144</span><span id="line-144"> }</span> |
| <span class="source-line-no">145</span><span id="line-145"> return runnable.getProcId();</span> |
| <span class="source-line-no">146</span><span id="line-146"> }</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"> * Pattern used to validate a Procedure WAL file name see</span> |
| <span class="source-line-no">150</span><span id="line-150"> * {@link #validateProcedureWALFilename(String)} for description.</span> |
| <span class="source-line-no">151</span><span id="line-151"> * @deprecated Since 2.3.0, will be removed in 4.0.0. We do not use this style of procedure wal</span> |
| <span class="source-line-no">152</span><span id="line-152"> * file name any more.</span> |
| <span class="source-line-no">153</span><span id="line-153"> */</span> |
| <span class="source-line-no">154</span><span id="line-154"> @Deprecated</span> |
| <span class="source-line-no">155</span><span id="line-155"> private static final Pattern PATTERN = Pattern.compile(".*pv2-\\d{20}.log");</span> |
| <span class="source-line-no">156</span><span id="line-156"></span> |
| <span class="source-line-no">157</span><span id="line-157"> /**</span> |
| <span class="source-line-no">158</span><span id="line-158"> * A Procedure WAL file name is of the format: pv-&lt;wal-id&gt;.log where wal-id is 20 digits.</span> |
| <span class="source-line-no">159</span><span id="line-159"> * @param filename name of the file to validate</span> |
| <span class="source-line-no">160</span><span id="line-160"> * @return <tt>true</tt> if the filename matches a Procedure WAL, <tt>false</tt> otherwise</span> |
| <span class="source-line-no">161</span><span id="line-161"> */</span> |
| <span class="source-line-no">162</span><span id="line-162"> public static boolean validateProcedureWALFilename(String filename) {</span> |
| <span class="source-line-no">163</span><span id="line-163"> return PATTERN.matcher(filename).matches();</span> |
| <span class="source-line-no">164</span><span id="line-164"> }</span> |
| <span class="source-line-no">165</span><span id="line-165"></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 the priority for the given table. Now meta table is 3, other system tables are 2, and</span> |
| <span class="source-line-no">168</span><span id="line-168"> * user tables are 1.</span> |
| <span class="source-line-no">169</span><span id="line-169"> */</span> |
| <span class="source-line-no">170</span><span id="line-170"> public static int getTablePriority(TableName tableName) {</span> |
| <span class="source-line-no">171</span><span id="line-171"> if (TableName.isMetaTableName(tableName)) {</span> |
| <span class="source-line-no">172</span><span id="line-172"> return 3;</span> |
| <span class="source-line-no">173</span><span id="line-173"> } else if (tableName.isSystemTable()) {</span> |
| <span class="source-line-no">174</span><span id="line-174"> return 2;</span> |
| <span class="source-line-no">175</span><span id="line-175"> } else {</span> |
| <span class="source-line-no">176</span><span id="line-176"> return 1;</span> |
| <span class="source-line-no">177</span><span id="line-177"> }</span> |
| <span class="source-line-no">178</span><span id="line-178"> }</span> |
| <span class="source-line-no">179</span><span id="line-179"></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 the priority for the given procedure. For now we only have two priorities, 100 for</span> |
| <span class="source-line-no">182</span><span id="line-182"> * server carrying meta, and 1 for others.</span> |
| <span class="source-line-no">183</span><span id="line-183"> */</span> |
| <span class="source-line-no">184</span><span id="line-184"> public static int getServerPriority(ServerProcedureInterface proc) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> return proc.hasMetaTableRegion() ? 100 : 1;</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"></span> |
| <span class="source-line-no">188</span><span id="line-188"> /**</span> |
| <span class="source-line-no">189</span><span id="line-189"> * This is a version of unwrapRemoteIOException that can do DoNotRetryIOE. We need to throw DNRIOE</span> |
| <span class="source-line-no">190</span><span id="line-190"> * to clients if a failed Procedure else they will keep trying. The default</span> |
| <span class="source-line-no">191</span><span id="line-191"> * proc.getException().unwrapRemoteException doesn't have access to DNRIOE from the procedure2</span> |
| <span class="source-line-no">192</span><span id="line-192"> * module.</span> |
| <span class="source-line-no">193</span><span id="line-193"> */</span> |
| <span class="source-line-no">194</span><span id="line-194"> public static IOException unwrapRemoteIOException(Procedure<?> proc) {</span> |
| <span class="source-line-no">195</span><span id="line-195"> Exception e = proc.getException().unwrapRemoteException();</span> |
| <span class="source-line-no">196</span><span id="line-196"> // Do not retry ProcedureExceptions!</span> |
| <span class="source-line-no">197</span><span id="line-197"> return (e instanceof ProcedureException)</span> |
| <span class="source-line-no">198</span><span id="line-198"> ? new DoNotRetryIOException(e)</span> |
| <span class="source-line-no">199</span><span id="line-199"> : proc.getException().unwrapRemoteIOException();</span> |
| <span class="source-line-no">200</span><span id="line-200"> }</span> |
| <span class="source-line-no">201</span><span id="line-201"></span> |
| <span class="source-line-no">202</span><span id="line-202"> /**</span> |
| <span class="source-line-no">203</span><span id="line-203"> * Do not allow creating new tables/namespaces which has an empty rs group, expect the default rs</span> |
| <span class="source-line-no">204</span><span id="line-204"> * group. Notice that we do not check for online servers, as this is not stable because region</span> |
| <span class="source-line-no">205</span><span id="line-205"> * servers can die at any time.</span> |
| <span class="source-line-no">206</span><span id="line-206"> */</span> |
| <span class="source-line-no">207</span><span id="line-207"> public static void checkGroupNotEmpty(RSGroupInfo rsGroupInfo, Supplier<String> forWhom)</span> |
| <span class="source-line-no">208</span><span id="line-208"> throws ConstraintException {</span> |
| <span class="source-line-no">209</span><span id="line-209"> if (rsGroupInfo == null || rsGroupInfo.getName().equals(RSGroupInfo.DEFAULT_GROUP)) {</span> |
| <span class="source-line-no">210</span><span id="line-210"> // we do not have a rs group config or we explicitly set the rs group to default, then no need</span> |
| <span class="source-line-no">211</span><span id="line-211"> // to check.</span> |
| <span class="source-line-no">212</span><span id="line-212"> return;</span> |
| <span class="source-line-no">213</span><span id="line-213"> }</span> |
| <span class="source-line-no">214</span><span id="line-214"> if (rsGroupInfo.getServers().isEmpty()) {</span> |
| <span class="source-line-no">215</span><span id="line-215"> throw new ConstraintException(</span> |
| <span class="source-line-no">216</span><span id="line-216"> "No servers in the rsgroup " + rsGroupInfo.getName() + " for " + forWhom.get());</span> |
| <span class="source-line-no">217</span><span id="line-217"> }</span> |
| <span class="source-line-no">218</span><span id="line-218"> }</span> |
| <span class="source-line-no">219</span><span id="line-219"></span> |
| <span class="source-line-no">220</span><span id="line-220"> @FunctionalInterface</span> |
| <span class="source-line-no">221</span><span id="line-221"> public interface RSGroupGetter {</span> |
| <span class="source-line-no">222</span><span id="line-222"> RSGroupInfo get(String groupName) throws IOException;</span> |
| <span class="source-line-no">223</span><span id="line-223"> }</span> |
| <span class="source-line-no">224</span><span id="line-224"></span> |
| <span class="source-line-no">225</span><span id="line-225"> public static RSGroupInfo checkGroupExists(RSGroupGetter getter, Optional<String> optGroupName,</span> |
| <span class="source-line-no">226</span><span id="line-226"> Supplier<String> forWhom) throws IOException {</span> |
| <span class="source-line-no">227</span><span id="line-227"> if (optGroupName.isPresent()) {</span> |
| <span class="source-line-no">228</span><span id="line-228"> String groupName = optGroupName.get();</span> |
| <span class="source-line-no">229</span><span id="line-229"> RSGroupInfo group = getter.get(groupName);</span> |
| <span class="source-line-no">230</span><span id="line-230"> if (group == null) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> throw new ConstraintException(</span> |
| <span class="source-line-no">232</span><span id="line-232"> "Region server group " + groupName + " for " + forWhom.get() + " does not exit");</span> |
| <span class="source-line-no">233</span><span id="line-233"> }</span> |
| <span class="source-line-no">234</span><span id="line-234"> return group;</span> |
| <span class="source-line-no">235</span><span id="line-235"> }</span> |
| <span class="source-line-no">236</span><span id="line-236"> return null;</span> |
| <span class="source-line-no">237</span><span id="line-237"> }</span> |
| <span class="source-line-no">238</span><span id="line-238"></span> |
| <span class="source-line-no">239</span><span id="line-239"> public static Optional<String> getNamespaceGroup(NamespaceDescriptor namespaceDesc) {</span> |
| <span class="source-line-no">240</span><span id="line-240"> return Optional</span> |
| <span class="source-line-no">241</span><span id="line-241"> .ofNullable(namespaceDesc.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP));</span> |
| <span class="source-line-no">242</span><span id="line-242"> }</span> |
| <span class="source-line-no">243</span><span id="line-243">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
