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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;</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.Map;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.commons.lang3.StringUtils;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.util.VersionInfo;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.zookeeper.ZKConfig;</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">/**</span> |
| <span class="source-line-no">031</span><span id="line-31"> * Adds HBase configuration files to a Configuration</span> |
| <span class="source-line-no">032</span><span id="line-32"> */</span> |
| <span class="source-line-no">033</span><span id="line-33">@InterfaceAudience.Public</span> |
| <span class="source-line-no">034</span><span id="line-34">public class HBaseConfiguration extends Configuration {</span> |
| <span class="source-line-no">035</span><span id="line-35"> private static final Logger LOG = LoggerFactory.getLogger(HBaseConfiguration.class);</span> |
| <span class="source-line-no">036</span><span id="line-36"></span> |
| <span class="source-line-no">037</span><span id="line-37"> static {</span> |
| <span class="source-line-no">038</span><span id="line-38"> addDeprecatedKeys();</span> |
| <span class="source-line-no">039</span><span id="line-39"> }</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41"> private static void checkDefaultsVersion(Configuration conf) {</span> |
| <span class="source-line-no">042</span><span id="line-42"> if (conf.getBoolean("hbase.defaults.for.version.skip", Boolean.FALSE)) return;</span> |
| <span class="source-line-no">043</span><span id="line-43"> String defaultsVersion = conf.get("hbase.defaults.for.version");</span> |
| <span class="source-line-no">044</span><span id="line-44"> String thisVersion = VersionInfo.getVersion();</span> |
| <span class="source-line-no">045</span><span id="line-45"> if (!thisVersion.equals(defaultsVersion)) {</span> |
| <span class="source-line-no">046</span><span id="line-46"> throw new RuntimeException(</span> |
| <span class="source-line-no">047</span><span id="line-47"> "hbase-default.xml file seems to be for an older version of HBase (" + defaultsVersion</span> |
| <span class="source-line-no">048</span><span id="line-48"> + "), this version is " + thisVersion);</span> |
| <span class="source-line-no">049</span><span id="line-49"> }</span> |
| <span class="source-line-no">050</span><span id="line-50"> }</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52"> /**</span> |
| <span class="source-line-no">053</span><span id="line-53"> * The hbase.ipc.server.reservoir.initial.max and hbase.ipc.server.reservoir.initial.buffer.size</span> |
| <span class="source-line-no">054</span><span id="line-54"> * were introduced in HBase2.0.0, while in HBase3.0.0 the two config keys will be replaced by</span> |
| <span class="source-line-no">055</span><span id="line-55"> * hbase.server.allocator.max.buffer.count and hbase.server.allocator.buffer.size. Also the</span> |
| <span class="source-line-no">056</span><span id="line-56"> * hbase.ipc.server.reservoir.enabled will be replaced by hbase.server.allocator.pool.enabled.</span> |
| <span class="source-line-no">057</span><span id="line-57"> * Keep the three old config keys here for HBase2.x compatibility. <br></span> |
| <span class="source-line-no">058</span><span id="line-58"> * HBASE-24667: This config hbase.regionserver.hostname.disable.master.reversedns will be replaced</span> |
| <span class="source-line-no">059</span><span id="line-59"> * by hbase.unsafe.regionserver.hostname.disable.master.reversedns. Keep the old config keys here</span> |
| <span class="source-line-no">060</span><span id="line-60"> * for backward compatibility. <br></span> |
| <span class="source-line-no">061</span><span id="line-61"> * Note: Before Hadoop-3.3, we must call the addDeprecations method before creating the</span> |
| <span class="source-line-no">062</span><span id="line-62"> * Configuration object to work correctly. After this bug is fixed in hadoop-3.3, there will be no</span> |
| <span class="source-line-no">063</span><span id="line-63"> * order problem.</span> |
| <span class="source-line-no">064</span><span id="line-64"> * @see <a href="https://issues.apache.org/jira/browse/HADOOP-15708">HADOOP-15708</a></span> |
| <span class="source-line-no">065</span><span id="line-65"> */</span> |
| <span class="source-line-no">066</span><span id="line-66"> private static void addDeprecatedKeys() {</span> |
| <span class="source-line-no">067</span><span id="line-67"> Configuration.addDeprecations(new DeprecationDelta[] {</span> |
| <span class="source-line-no">068</span><span id="line-68"> new DeprecationDelta("hbase.regionserver.hostname", "hbase.unsafe.regionserver.hostname"),</span> |
| <span class="source-line-no">069</span><span id="line-69"> new DeprecationDelta("hbase.regionserver.hostname.disable.master.reversedns",</span> |
| <span class="source-line-no">070</span><span id="line-70"> "hbase.unsafe.regionserver.hostname.disable.master.reversedns"),</span> |
| <span class="source-line-no">071</span><span id="line-71"> new DeprecationDelta("hbase.offheapcache.minblocksize", "hbase.blockcache.minblocksize"),</span> |
| <span class="source-line-no">072</span><span id="line-72"> new DeprecationDelta("hbase.ipc.server.reservoir.enabled",</span> |
| <span class="source-line-no">073</span><span id="line-73"> "hbase.server.allocator.pool.enabled"),</span> |
| <span class="source-line-no">074</span><span id="line-74"> new DeprecationDelta("hbase.ipc.server.reservoir.initial.max",</span> |
| <span class="source-line-no">075</span><span id="line-75"> "hbase.server.allocator.max.buffer.count"),</span> |
| <span class="source-line-no">076</span><span id="line-76"> new DeprecationDelta("hbase.ipc.server.reservoir.initial.buffer.size",</span> |
| <span class="source-line-no">077</span><span id="line-77"> "hbase.server.allocator.buffer.size"),</span> |
| <span class="source-line-no">078</span><span id="line-78"> new DeprecationDelta("hlog.bulk.output", "wal.bulk.output"),</span> |
| <span class="source-line-no">079</span><span id="line-79"> new DeprecationDelta("hlog.input.tables", "wal.input.tables"),</span> |
| <span class="source-line-no">080</span><span id="line-80"> new DeprecationDelta("hlog.input.tablesmap", "wal.input.tablesmap"),</span> |
| <span class="source-line-no">081</span><span id="line-81"> new DeprecationDelta("hbase.master.mob.ttl.cleaner.period",</span> |
| <span class="source-line-no">082</span><span id="line-82"> "hbase.master.mob.cleaner.period"),</span> |
| <span class="source-line-no">083</span><span id="line-83"> new DeprecationDelta("hbase.normalizer.min.region.count",</span> |
| <span class="source-line-no">084</span><span id="line-84"> "hbase.normalizer.merge.min.region.count") });</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"> public static Configuration addHbaseResources(Configuration conf) {</span> |
| <span class="source-line-no">088</span><span id="line-88"> conf.addResource("hbase-default.xml");</span> |
| <span class="source-line-no">089</span><span id="line-89"> conf.addResource("hbase-site.xml");</span> |
| <span class="source-line-no">090</span><span id="line-90"></span> |
| <span class="source-line-no">091</span><span id="line-91"> checkDefaultsVersion(conf);</span> |
| <span class="source-line-no">092</span><span id="line-92"> return conf;</span> |
| <span class="source-line-no">093</span><span id="line-93"> }</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"> * Creates a Configuration with HBase resources</span> |
| <span class="source-line-no">097</span><span id="line-97"> * @return a Configuration with HBase resources</span> |
| <span class="source-line-no">098</span><span id="line-98"> */</span> |
| <span class="source-line-no">099</span><span id="line-99"> public static Configuration create() {</span> |
| <span class="source-line-no">100</span><span id="line-100"> Configuration conf = new Configuration();</span> |
| <span class="source-line-no">101</span><span id="line-101"> // In case HBaseConfiguration is loaded from a different classloader than</span> |
| <span class="source-line-no">102</span><span id="line-102"> // Configuration, conf needs to be set with appropriate class loader to resolve</span> |
| <span class="source-line-no">103</span><span id="line-103"> // HBase resources.</span> |
| <span class="source-line-no">104</span><span id="line-104"> conf.setClassLoader(HBaseConfiguration.class.getClassLoader());</span> |
| <span class="source-line-no">105</span><span id="line-105"> return addHbaseResources(conf);</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"></span> |
| <span class="source-line-no">108</span><span id="line-108"> /**</span> |
| <span class="source-line-no">109</span><span id="line-109"> * Creates a Configuration with HBase resources</span> |
| <span class="source-line-no">110</span><span id="line-110"> * @param that Configuration to clone.</span> |
| <span class="source-line-no">111</span><span id="line-111"> * @return a Configuration created with the hbase-*.xml files plus the given configuration.</span> |
| <span class="source-line-no">112</span><span id="line-112"> */</span> |
| <span class="source-line-no">113</span><span id="line-113"> public static Configuration create(final Configuration that) {</span> |
| <span class="source-line-no">114</span><span id="line-114"> Configuration conf = create();</span> |
| <span class="source-line-no">115</span><span id="line-115"> merge(conf, that);</span> |
| <span class="source-line-no">116</span><span id="line-116"> return conf;</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"> * Merge two configurations.</span> |
| <span class="source-line-no">121</span><span id="line-121"> * @param destConf the configuration that will be overwritten with items from the srcConf</span> |
| <span class="source-line-no">122</span><span id="line-122"> * @param srcConf the source configuration</span> |
| <span class="source-line-no">123</span><span id="line-123"> **/</span> |
| <span class="source-line-no">124</span><span id="line-124"> public static void merge(Configuration destConf, Configuration srcConf) {</span> |
| <span class="source-line-no">125</span><span id="line-125"> for (Map.Entry<String, String> e : srcConf) {</span> |
| <span class="source-line-no">126</span><span id="line-126"> destConf.set(e.getKey(), e.getValue());</span> |
| <span class="source-line-no">127</span><span id="line-127"> }</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"> /**</span> |
| <span class="source-line-no">131</span><span id="line-131"> * Returns a subset of the configuration properties, matching the given key prefix. The prefix is</span> |
| <span class="source-line-no">132</span><span id="line-132"> * stripped from the return keys, ie. when calling with a prefix of "myprefix", the entry</span> |
| <span class="source-line-no">133</span><span id="line-133"> * "myprefix.key1 = value1" would be returned as "key1 = value1". If an entry's key matches the</span> |
| <span class="source-line-no">134</span><span id="line-134"> * prefix exactly ("myprefix = value2"), it will <strong>not</strong> be included in the results,</span> |
| <span class="source-line-no">135</span><span id="line-135"> * since it would show up as an entry with an empty key.</span> |
| <span class="source-line-no">136</span><span id="line-136"> */</span> |
| <span class="source-line-no">137</span><span id="line-137"> public static Configuration subset(Configuration srcConf, String prefix) {</span> |
| <span class="source-line-no">138</span><span id="line-138"> Configuration newConf = new Configuration(false);</span> |
| <span class="source-line-no">139</span><span id="line-139"> for (Map.Entry<String, String> entry : srcConf) {</span> |
| <span class="source-line-no">140</span><span id="line-140"> if (entry.getKey().startsWith(prefix)) {</span> |
| <span class="source-line-no">141</span><span id="line-141"> String newKey = entry.getKey().substring(prefix.length());</span> |
| <span class="source-line-no">142</span><span id="line-142"> // avoid entries that would produce an empty key</span> |
| <span class="source-line-no">143</span><span id="line-143"> if (!newKey.isEmpty()) {</span> |
| <span class="source-line-no">144</span><span id="line-144"> newConf.set(newKey, entry.getValue());</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"> }</span> |
| <span class="source-line-no">148</span><span id="line-148"> return newConf;</span> |
| <span class="source-line-no">149</span><span id="line-149"> }</span> |
| <span class="source-line-no">150</span><span id="line-150"></span> |
| <span class="source-line-no">151</span><span id="line-151"> /**</span> |
| <span class="source-line-no">152</span><span id="line-152"> * Sets all the entries in the provided {@code Map<String, String>} as properties in the given</span> |
| <span class="source-line-no">153</span><span id="line-153"> * {@code Configuration}. Each property will have the specified prefix prepended, so that the</span> |
| <span class="source-line-no">154</span><span id="line-154"> * configuration entries are keyed by {@code prefix + entry.getKey()}.</span> |
| <span class="source-line-no">155</span><span id="line-155"> */</span> |
| <span class="source-line-no">156</span><span id="line-156"> public static void setWithPrefix(Configuration conf, String prefix,</span> |
| <span class="source-line-no">157</span><span id="line-157"> Iterable<Map.Entry<String, String>> properties) {</span> |
| <span class="source-line-no">158</span><span id="line-158"> for (Map.Entry<String, String> entry : properties) {</span> |
| <span class="source-line-no">159</span><span id="line-159"> conf.set(prefix + entry.getKey(), entry.getValue());</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"> /** Returns whether to show HBase Configuration in servlet */</span> |
| <span class="source-line-no">164</span><span id="line-164"> public static boolean isShowConfInServlet() {</span> |
| <span class="source-line-no">165</span><span id="line-165"> boolean isShowConf = false;</span> |
| <span class="source-line-no">166</span><span id="line-166"> try {</span> |
| <span class="source-line-no">167</span><span id="line-167"> if (Class.forName("org.apache.hadoop.conf.ConfServlet") != null) {</span> |
| <span class="source-line-no">168</span><span id="line-168"> isShowConf = true;</span> |
| <span class="source-line-no">169</span><span id="line-169"> }</span> |
| <span class="source-line-no">170</span><span id="line-170"> } catch (LinkageError e) {</span> |
| <span class="source-line-no">171</span><span id="line-171"> // should we handle it more aggressively in addition to log the error?</span> |
| <span class="source-line-no">172</span><span id="line-172"> LOG.warn("Error thrown: ", e);</span> |
| <span class="source-line-no">173</span><span id="line-173"> } catch (ClassNotFoundException ce) {</span> |
| <span class="source-line-no">174</span><span id="line-174"> LOG.debug("ClassNotFound: ConfServlet");</span> |
| <span class="source-line-no">175</span><span id="line-175"> // ignore</span> |
| <span class="source-line-no">176</span><span id="line-176"> }</span> |
| <span class="source-line-no">177</span><span id="line-177"> return isShowConf;</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"> * Get the password from the Configuration instance using the getPassword method if it exists. If</span> |
| <span class="source-line-no">182</span><span id="line-182"> * not, then fall back to the general get method for configuration elements.</span> |
| <span class="source-line-no">183</span><span id="line-183"> * @param conf configuration instance for accessing the passwords</span> |
| <span class="source-line-no">184</span><span id="line-184"> * @param alias the name of the password element</span> |
| <span class="source-line-no">185</span><span id="line-185"> * @param defPass the default password</span> |
| <span class="source-line-no">186</span><span id="line-186"> * @return String password or default password</span> |
| <span class="source-line-no">187</span><span id="line-187"> */</span> |
| <span class="source-line-no">188</span><span id="line-188"> public static String getPassword(Configuration conf, String alias, String defPass)</span> |
| <span class="source-line-no">189</span><span id="line-189"> throws IOException {</span> |
| <span class="source-line-no">190</span><span id="line-190"> String passwd;</span> |
| <span class="source-line-no">191</span><span id="line-191"> char[] p = conf.getPassword(alias);</span> |
| <span class="source-line-no">192</span><span id="line-192"> if (p != null) {</span> |
| <span class="source-line-no">193</span><span id="line-193"> LOG.debug("Config option {} was found through the Configuration getPassword method.", alias);</span> |
| <span class="source-line-no">194</span><span id="line-194"> passwd = new String(p);</span> |
| <span class="source-line-no">195</span><span id="line-195"> } else {</span> |
| <span class="source-line-no">196</span><span id="line-196"> LOG.debug("Config option {} was not found. Using provided default value", alias);</span> |
| <span class="source-line-no">197</span><span id="line-197"> passwd = defPass;</span> |
| <span class="source-line-no">198</span><span id="line-198"> }</span> |
| <span class="source-line-no">199</span><span id="line-199"> return passwd;</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"> * Generates a {@link Configuration} instance by applying the ZooKeeper cluster key to the base</span> |
| <span class="source-line-no">204</span><span id="line-204"> * Configuration. Note that additional configuration properties may be needed for a remote</span> |
| <span class="source-line-no">205</span><span id="line-205"> * cluster, so it is preferable to use {@link #createClusterConf(Configuration, String, String)}.</span> |
| <span class="source-line-no">206</span><span id="line-206"> * @param baseConf the base configuration to use, containing prefixed override properties</span> |
| <span class="source-line-no">207</span><span id="line-207"> * @param clusterKey the ZooKeeper quorum cluster key to apply, or {@code null} if none</span> |
| <span class="source-line-no">208</span><span id="line-208"> * @return the merged configuration with override properties and cluster key applied</span> |
| <span class="source-line-no">209</span><span id="line-209"> * @see #createClusterConf(Configuration, String, String)</span> |
| <span class="source-line-no">210</span><span id="line-210"> */</span> |
| <span class="source-line-no">211</span><span id="line-211"> public static Configuration createClusterConf(Configuration baseConf, String clusterKey)</span> |
| <span class="source-line-no">212</span><span id="line-212"> throws IOException {</span> |
| <span class="source-line-no">213</span><span id="line-213"> return createClusterConf(baseConf, clusterKey, null);</span> |
| <span class="source-line-no">214</span><span id="line-214"> }</span> |
| <span class="source-line-no">215</span><span id="line-215"></span> |
| <span class="source-line-no">216</span><span id="line-216"> /**</span> |
| <span class="source-line-no">217</span><span id="line-217"> * Generates a {@link Configuration} instance by applying property overrides prefixed by a cluster</span> |
| <span class="source-line-no">218</span><span id="line-218"> * profile key to the base Configuration. Override properties are extracted by the</span> |
| <span class="source-line-no">219</span><span id="line-219"> * {@link #subset(Configuration, String)} method, then the merged on top of the base Configuration</span> |
| <span class="source-line-no">220</span><span id="line-220"> * and returned.</span> |
| <span class="source-line-no">221</span><span id="line-221"> * @param baseConf the base configuration to use, containing prefixed override properties</span> |
| <span class="source-line-no">222</span><span id="line-222"> * @param clusterKey the ZooKeeper quorum cluster key to apply, or {@code null} if none</span> |
| <span class="source-line-no">223</span><span id="line-223"> * @param overridePrefix the property key prefix to match for override properties, or {@code null}</span> |
| <span class="source-line-no">224</span><span id="line-224"> * if none</span> |
| <span class="source-line-no">225</span><span id="line-225"> * @return the merged configuration with override properties and cluster key applied</span> |
| <span class="source-line-no">226</span><span id="line-226"> */</span> |
| <span class="source-line-no">227</span><span id="line-227"> public static Configuration createClusterConf(Configuration baseConf, String clusterKey,</span> |
| <span class="source-line-no">228</span><span id="line-228"> String overridePrefix) throws IOException {</span> |
| <span class="source-line-no">229</span><span id="line-229"> Configuration clusterConf = HBaseConfiguration.create(baseConf);</span> |
| <span class="source-line-no">230</span><span id="line-230"> if (!StringUtils.isBlank(clusterKey)) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> applyClusterKeyToConf(clusterConf, clusterKey);</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233"></span> |
| <span class="source-line-no">234</span><span id="line-234"> if (!StringUtils.isBlank(overridePrefix)) {</span> |
| <span class="source-line-no">235</span><span id="line-235"> Configuration clusterSubset = HBaseConfiguration.subset(clusterConf, overridePrefix);</span> |
| <span class="source-line-no">236</span><span id="line-236"> HBaseConfiguration.merge(clusterConf, clusterSubset);</span> |
| <span class="source-line-no">237</span><span id="line-237"> }</span> |
| <span class="source-line-no">238</span><span id="line-238"> return clusterConf;</span> |
| <span class="source-line-no">239</span><span id="line-239"> }</span> |
| <span class="source-line-no">240</span><span id="line-240"></span> |
| <span class="source-line-no">241</span><span id="line-241"> /**</span> |
| <span class="source-line-no">242</span><span id="line-242"> * Apply the settings in the given key to the given configuration, this is used to communicate</span> |
| <span class="source-line-no">243</span><span id="line-243"> * with distant clusters</span> |
| <span class="source-line-no">244</span><span id="line-244"> * @param conf configuration object to configure</span> |
| <span class="source-line-no">245</span><span id="line-245"> * @param key string that contains the 3 required configuratins</span> |
| <span class="source-line-no">246</span><span id="line-246"> */</span> |
| <span class="source-line-no">247</span><span id="line-247"> private static void applyClusterKeyToConf(Configuration conf, String key) throws IOException {</span> |
| <span class="source-line-no">248</span><span id="line-248"> ZKConfig.ZKClusterKey zkClusterKey = ZKConfig.transformClusterKey(key);</span> |
| <span class="source-line-no">249</span><span id="line-249"> conf.set(HConstants.ZOOKEEPER_QUORUM, zkClusterKey.getQuorumString());</span> |
| <span class="source-line-no">250</span><span id="line-250"> conf.setInt(HConstants.ZOOKEEPER_CLIENT_PORT, zkClusterKey.getClientPort());</span> |
| <span class="source-line-no">251</span><span id="line-251"> conf.set(HConstants.ZOOKEEPER_ZNODE_PARENT, zkClusterKey.getZnodeParent());</span> |
| <span class="source-line-no">252</span><span id="line-252"> // Without the right registry, the above configs are useless. Also, we don't use setClass()</span> |
| <span class="source-line-no">253</span><span id="line-253"> // here because the ConnectionRegistry* classes are not resolvable from this module.</span> |
| <span class="source-line-no">254</span><span id="line-254"> // This will be broken if ZkConnectionRegistry class gets renamed or moved. Is there a better</span> |
| <span class="source-line-no">255</span><span id="line-255"> // way?</span> |
| <span class="source-line-no">256</span><span id="line-256"> LOG.info("Overriding client registry implementation to {}",</span> |
| <span class="source-line-no">257</span><span id="line-257"> HConstants.ZK_CONNECTION_REGISTRY_CLASS);</span> |
| <span class="source-line-no">258</span><span id="line-258"> conf.set(HConstants.CLIENT_CONNECTION_REGISTRY_IMPL_CONF_KEY,</span> |
| <span class="source-line-no">259</span><span id="line-259"> HConstants.ZK_CONNECTION_REGISTRY_CLASS);</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"> * For debugging. Dump configurations to system output as xml format. Master and RS configurations</span> |
| <span class="source-line-no">264</span><span id="line-264"> * can also be dumped using http services. e.g. "curl http://master:16010/dump"</span> |
| <span class="source-line-no">265</span><span id="line-265"> */</span> |
| <span class="source-line-no">266</span><span id="line-266"> public static void main(String[] args) throws Exception {</span> |
| <span class="source-line-no">267</span><span id="line-267"> HBaseConfiguration.create().writeXml(System.out);</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> |
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| </div> |
| </main> |
| </body> |
| </html> |
