http://git-wip-us.apache.org/repos/asf/hbase-site/blob/cef8af03/devapidocs/src-html/org/apache/hadoop/hbase/rest/ResourceConfig.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/rest/ResourceConfig.html b/devapidocs/src-html/org/apache/hadoop/hbase/rest/ResourceConfig.html deleted file mode 100644 index 6a05a06..0000000 --- a/devapidocs/src-html/org/apache/hadoop/hbase/rest/ResourceConfig.html +++ /dev/null @@ -1,103 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> -<html lang="en"> -<head> -<title>Source code</title> -<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> -</head> -<body> -<div class="sourceContainer"> -<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> -<span class="sourceLineNo">002</span> *<a name="line.2"></a> -<span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> -<span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> -<span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> -<span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> -<span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> -<span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> -<span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> -<span class="sourceLineNo">010</span> *<a name="line.10"></a> -<span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> -<span class="sourceLineNo">012</span> *<a name="line.12"></a> -<span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> -<span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> -<span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> -<span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> -<span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> -<span class="sourceLineNo">018</span> */<a name="line.18"></a> -<span class="sourceLineNo">019</span><a name="line.19"></a> -<span class="sourceLineNo">020</span>package org.apache.hadoop.hbase.rest;<a name="line.20"></a> -<span class="sourceLineNo">021</span><a name="line.21"></a> -<span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.22"></a> -<span class="sourceLineNo">023</span><a name="line.23"></a> -<span class="sourceLineNo">024</span>import com.sun.jersey.api.core.PackagesResourceConfig;<a name="line.24"></a> -<span class="sourceLineNo">025</span><a name="line.25"></a> -<span class="sourceLineNo">026</span>@InterfaceAudience.Private<a name="line.26"></a> -<span class="sourceLineNo">027</span>public class ResourceConfig extends PackagesResourceConfig {<a name="line.27"></a> -<span class="sourceLineNo">028</span> public ResourceConfig() {<a name="line.28"></a> -<span class="sourceLineNo">029</span> super("org.apache.hadoop.hbase.rest");<a name="line.29"></a> -<span class="sourceLineNo">030</span> }<a name="line.30"></a> -<span class="sourceLineNo">031</span>}<a name="line.31"></a> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -</pre> -</div> -</body> -</html>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/cef8af03/devapidocs/src-html/org/apache/hadoop/hbase/rest/model/VersionModel.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/rest/model/VersionModel.html b/devapidocs/src-html/org/apache/hadoop/hbase/rest/model/VersionModel.html index eb9584f..ee53747 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/rest/model/VersionModel.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/rest/model/VersionModel.html @@ -39,8 +39,8 @@ <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.rest.RESTServlet;<a name="line.31"></a> <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.32"></a> <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.rest.protobuf.generated.VersionMessage.Version;<a name="line.33"></a> -<span class="sourceLineNo">034</span><a name="line.34"></a> -<span class="sourceLineNo">035</span>import com.sun.jersey.spi.container.servlet.ServletContainer;<a name="line.35"></a> +<span class="sourceLineNo">034</span>import org.glassfish.jersey.servlet.ServletContainer;<a name="line.34"></a> +<span class="sourceLineNo">035</span><a name="line.35"></a> <span class="sourceLineNo">036</span><a name="line.36"></a> <span class="sourceLineNo">037</span>/**<a name="line.37"></a> <span class="sourceLineNo">038</span> * A representation of the collection of versions of the REST gateway software<a name="line.38"></a> @@ -83,7 +83,7 @@ <span class="sourceLineNo">075</span> System.getProperty("os.version") + ' ' +<a name="line.75"></a> <span class="sourceLineNo">076</span> System.getProperty("os.arch");<a name="line.76"></a> <span class="sourceLineNo">077</span> serverVersion = context.getServerInfo();<a name="line.77"></a> -<span class="sourceLineNo">078</span> jerseyVersion = ServletContainer.class.getPackage()<a name="line.78"></a> +<span class="sourceLineNo">078</span> jerseyVersion = ServletContainer.class.getClass().getPackage()<a name="line.78"></a> <span class="sourceLineNo">079</span> .getImplementationVersion();<a name="line.79"></a> <span class="sourceLineNo">080</span> }<a name="line.80"></a> <span class="sourceLineNo">081</span><a name="line.81"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/cef8af03/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.ZKDisconnectEventWatcher.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.ZKDisconnectEventWatcher.html b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.ZKDisconnectEventWatcher.html new file mode 100644 index 0000000..f8da5e7 --- /dev/null +++ b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.ZKDisconnectEventWatcher.html @@ -0,0 +1,792 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> +<span class="sourceLineNo">002</span> *<a name="line.2"></a> +<span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> +<span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> +<span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> +<span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> +<span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> +<span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> +<span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> +<span class="sourceLineNo">010</span> *<a name="line.10"></a> +<span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> +<span class="sourceLineNo">012</span> *<a name="line.12"></a> +<span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> +<span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> +<span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> +<span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> +<span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> +<span class="sourceLineNo">018</span> */<a name="line.18"></a> +<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.zookeeper;<a name="line.19"></a> +<span class="sourceLineNo">020</span><a name="line.20"></a> +<span class="sourceLineNo">021</span>import java.io.Closeable;<a name="line.21"></a> +<span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.util.HashMap;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.util.Map;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import java.util.concurrent.CountDownLatch;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import java.util.concurrent.ExecutorService;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import java.util.concurrent.Executors;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import java.util.regex.Matcher;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import java.util.regex.Pattern;<a name="line.33"></a> +<span class="sourceLineNo">034</span><a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.commons.logging.Log;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.commons.logging.LogFactory;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.conf.Configuration;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.Abortable;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.AuthUtil;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HConstants;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.ZooKeeperConnectionException;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.security.Superusers;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.zookeeper.KeeperException;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.zookeeper.WatchedEvent;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.zookeeper.Watcher;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.zookeeper.ZooDefs.Ids;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.apache.zookeeper.ZooDefs.Perms;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.apache.zookeeper.data.ACL;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.apache.zookeeper.data.Id;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.apache.zookeeper.data.Stat;<a name="line.54"></a> +<span class="sourceLineNo">055</span><a name="line.55"></a> +<span class="sourceLineNo">056</span>/**<a name="line.56"></a> +<span class="sourceLineNo">057</span> * Acts as the single ZooKeeper Watcher. One instance of this is instantiated<a name="line.57"></a> +<span class="sourceLineNo">058</span> * for each Master, RegionServer, and client process.<a name="line.58"></a> +<span class="sourceLineNo">059</span> *<a name="line.59"></a> +<span class="sourceLineNo">060</span> * <p>This is the only class that implements {@link Watcher}. Other internal<a name="line.60"></a> +<span class="sourceLineNo">061</span> * classes which need to be notified of ZooKeeper events must register with<a name="line.61"></a> +<span class="sourceLineNo">062</span> * the local instance of this watcher via {@link #registerListener}.<a name="line.62"></a> +<span class="sourceLineNo">063</span> *<a name="line.63"></a> +<span class="sourceLineNo">064</span> * <p>This class also holds and manages the connection to ZooKeeper. Code to<a name="line.64"></a> +<span class="sourceLineNo">065</span> * deal with connection related events and exceptions are handled here.<a name="line.65"></a> +<span class="sourceLineNo">066</span> */<a name="line.66"></a> +<span class="sourceLineNo">067</span>@InterfaceAudience.Private<a name="line.67"></a> +<span class="sourceLineNo">068</span>public class ZooKeeperWatcher implements Watcher, Abortable, Closeable {<a name="line.68"></a> +<span class="sourceLineNo">069</span> private static final Log LOG = LogFactory.getLog(ZooKeeperWatcher.class);<a name="line.69"></a> +<span class="sourceLineNo">070</span><a name="line.70"></a> +<span class="sourceLineNo">071</span> // Identifier for this watcher (for logging only). It is made of the prefix<a name="line.71"></a> +<span class="sourceLineNo">072</span> // passed on construction and the zookeeper sessionid.<a name="line.72"></a> +<span class="sourceLineNo">073</span> private String prefix;<a name="line.73"></a> +<span class="sourceLineNo">074</span> private String identifier;<a name="line.74"></a> +<span class="sourceLineNo">075</span><a name="line.75"></a> +<span class="sourceLineNo">076</span> // zookeeper quorum<a name="line.76"></a> +<span class="sourceLineNo">077</span> private String quorum;<a name="line.77"></a> +<span class="sourceLineNo">078</span><a name="line.78"></a> +<span class="sourceLineNo">079</span> // zookeeper connection<a name="line.79"></a> +<span class="sourceLineNo">080</span> private final RecoverableZooKeeper recoverableZooKeeper;<a name="line.80"></a> +<span class="sourceLineNo">081</span><a name="line.81"></a> +<span class="sourceLineNo">082</span> // abortable in case of zk failure<a name="line.82"></a> +<span class="sourceLineNo">083</span> protected final Abortable abortable;<a name="line.83"></a> +<span class="sourceLineNo">084</span> // Used if abortable is null<a name="line.84"></a> +<span class="sourceLineNo">085</span> private boolean aborted = false;<a name="line.85"></a> +<span class="sourceLineNo">086</span><a name="line.86"></a> +<span class="sourceLineNo">087</span> public final ZNodePaths znodePaths;<a name="line.87"></a> +<span class="sourceLineNo">088</span><a name="line.88"></a> +<span class="sourceLineNo">089</span> // listeners to be notified<a name="line.89"></a> +<span class="sourceLineNo">090</span> private final List<ZooKeeperListener> listeners = new CopyOnWriteArrayList<>();<a name="line.90"></a> +<span class="sourceLineNo">091</span><a name="line.91"></a> +<span class="sourceLineNo">092</span> // Used by ZKUtil:waitForZKConnectionIfAuthenticating to wait for SASL<a name="line.92"></a> +<span class="sourceLineNo">093</span> // negotiation to complete<a name="line.93"></a> +<span class="sourceLineNo">094</span> public CountDownLatch saslLatch = new CountDownLatch(1);<a name="line.94"></a> +<span class="sourceLineNo">095</span><a name="line.95"></a> +<span class="sourceLineNo">096</span> // Connection timeout on disconnect event<a name="line.96"></a> +<span class="sourceLineNo">097</span> private long connWaitTimeOut;<a name="line.97"></a> +<span class="sourceLineNo">098</span> private AtomicBoolean connected = new AtomicBoolean(false);<a name="line.98"></a> +<span class="sourceLineNo">099</span> private boolean forceAbortOnZKDisconnect;<a name="line.99"></a> +<span class="sourceLineNo">100</span> <a name="line.100"></a> +<span class="sourceLineNo">101</span> // Execute service for zookeeper disconnect event watcher<a name="line.101"></a> +<span class="sourceLineNo">102</span> private ExecutorService zkEventWatcherExecService = null;<a name="line.102"></a> +<span class="sourceLineNo">103</span><a name="line.103"></a> +<span class="sourceLineNo">104</span><a name="line.104"></a> +<span class="sourceLineNo">105</span> private final Configuration conf;<a name="line.105"></a> +<span class="sourceLineNo">106</span><a name="line.106"></a> +<span class="sourceLineNo">107</span> /* A pattern that matches a Kerberos name, borrowed from Hadoop's KerberosName */<a name="line.107"></a> +<span class="sourceLineNo">108</span> private static final Pattern NAME_PATTERN = Pattern.compile("([^/@]*)(/([^/@]*))?@([^/@]*)");<a name="line.108"></a> +<span class="sourceLineNo">109</span><a name="line.109"></a> +<span class="sourceLineNo">110</span> /**<a name="line.110"></a> +<span class="sourceLineNo">111</span> * Instantiate a ZooKeeper connection and watcher.<a name="line.111"></a> +<span class="sourceLineNo">112</span> * @param identifier string that is passed to RecoverableZookeeper to be used as<a name="line.112"></a> +<span class="sourceLineNo">113</span> * identifier for this instance. Use null for default.<a name="line.113"></a> +<span class="sourceLineNo">114</span> * @throws IOException<a name="line.114"></a> +<span class="sourceLineNo">115</span> * @throws ZooKeeperConnectionException<a name="line.115"></a> +<span class="sourceLineNo">116</span> */<a name="line.116"></a> +<span class="sourceLineNo">117</span> public ZooKeeperWatcher(Configuration conf, String identifier,<a name="line.117"></a> +<span class="sourceLineNo">118</span> Abortable abortable) throws ZooKeeperConnectionException, IOException {<a name="line.118"></a> +<span class="sourceLineNo">119</span> this(conf, identifier, abortable, false);<a name="line.119"></a> +<span class="sourceLineNo">120</span> }<a name="line.120"></a> +<span class="sourceLineNo">121</span><a name="line.121"></a> +<span class="sourceLineNo">122</span> /**<a name="line.122"></a> +<span class="sourceLineNo">123</span> * Instantiate a ZooKeeper connection and watcher.<a name="line.123"></a> +<span class="sourceLineNo">124</span> * @param conf<a name="line.124"></a> +<span class="sourceLineNo">125</span> * @param identifier string that is passed to RecoverableZookeeper to be used as identifier for<a name="line.125"></a> +<span class="sourceLineNo">126</span> * this instance. Use null for default.<a name="line.126"></a> +<span class="sourceLineNo">127</span> * @param abortable Can be null if there is on error there is no host to abort: e.g. client<a name="line.127"></a> +<span class="sourceLineNo">128</span> * context.<a name="line.128"></a> +<span class="sourceLineNo">129</span> * @param canCreateBaseZNode<a name="line.129"></a> +<span class="sourceLineNo">130</span> * @throws IOException<a name="line.130"></a> +<span class="sourceLineNo">131</span> * @throws ZooKeeperConnectionException<a name="line.131"></a> +<span class="sourceLineNo">132</span> */<a name="line.132"></a> +<span class="sourceLineNo">133</span> public ZooKeeperWatcher(Configuration conf, String identifier,<a name="line.133"></a> +<span class="sourceLineNo">134</span> Abortable abortable, boolean canCreateBaseZNode)<a name="line.134"></a> +<span class="sourceLineNo">135</span> throws IOException, ZooKeeperConnectionException {<a name="line.135"></a> +<span class="sourceLineNo">136</span> this(conf, identifier, abortable, canCreateBaseZNode, false);<a name="line.136"></a> +<span class="sourceLineNo">137</span> }<a name="line.137"></a> +<span class="sourceLineNo">138</span><a name="line.138"></a> +<span class="sourceLineNo">139</span> /**<a name="line.139"></a> +<span class="sourceLineNo">140</span> * Instantiate a ZooKeeper connection and watcher.<a name="line.140"></a> +<span class="sourceLineNo">141</span> * @param conf Configuration<a name="line.141"></a> +<span class="sourceLineNo">142</span> * @param identifier string that is passed to RecoverableZookeeper to be used as identifier for<a name="line.142"></a> +<span class="sourceLineNo">143</span> * this instance. Use null for default.<a name="line.143"></a> +<span class="sourceLineNo">144</span> * @param abortable Can be null if there is on error there is no host to abort: e.g. client<a name="line.144"></a> +<span class="sourceLineNo">145</span> * context.<a name="line.145"></a> +<span class="sourceLineNo">146</span> * @param canCreateBaseZNode whether create base node.<a name="line.146"></a> +<span class="sourceLineNo">147</span> * @param forceAbortOnZKDisconnect abort the watcher if true.<a name="line.147"></a> +<span class="sourceLineNo">148</span> * @throws IOException when any IO exception<a name="line.148"></a> +<span class="sourceLineNo">149</span> * @throws ZooKeeperConnectionException when any zookeeper connection exception<a name="line.149"></a> +<span class="sourceLineNo">150</span> */<a name="line.150"></a> +<span class="sourceLineNo">151</span> public ZooKeeperWatcher(Configuration conf, String identifier, Abortable abortable,<a name="line.151"></a> +<span class="sourceLineNo">152</span> boolean canCreateBaseZNode, boolean forceAbortOnZKDisconnect) throws IOException,<a name="line.152"></a> +<span class="sourceLineNo">153</span> ZooKeeperConnectionException {<a name="line.153"></a> +<span class="sourceLineNo">154</span> this.conf = conf;<a name="line.154"></a> +<span class="sourceLineNo">155</span> this.quorum = ZKConfig.getZKQuorumServersString(conf);<a name="line.155"></a> +<span class="sourceLineNo">156</span> this.prefix = identifier;<a name="line.156"></a> +<span class="sourceLineNo">157</span> // Identifier will get the sessionid appended later below down when we<a name="line.157"></a> +<span class="sourceLineNo">158</span> // handle the syncconnect event.<a name="line.158"></a> +<span class="sourceLineNo">159</span> this.identifier = identifier + "0x0";<a name="line.159"></a> +<span class="sourceLineNo">160</span> this.abortable = abortable;<a name="line.160"></a> +<span class="sourceLineNo">161</span> this.znodePaths = new ZNodePaths(conf);<a name="line.161"></a> +<span class="sourceLineNo">162</span> // On Disconnected event a thread will wait for sometime (2/3 of zookeeper.session.timeout),<a name="line.162"></a> +<span class="sourceLineNo">163</span> // it will abort the process if no SyncConnected event reported by the time.<a name="line.163"></a> +<span class="sourceLineNo">164</span> connWaitTimeOut = this.conf.getLong("zookeeper.session.timeout", 90000) * 2 / 3;<a name="line.164"></a> +<span class="sourceLineNo">165</span> PendingWatcher pendingWatcher = new PendingWatcher();<a name="line.165"></a> +<span class="sourceLineNo">166</span> this.recoverableZooKeeper = ZKUtil.connect(conf, quorum, pendingWatcher, identifier);<a name="line.166"></a> +<span class="sourceLineNo">167</span> pendingWatcher.prepare(this);<a name="line.167"></a> +<span class="sourceLineNo">168</span> if (canCreateBaseZNode) {<a name="line.168"></a> +<span class="sourceLineNo">169</span> try {<a name="line.169"></a> +<span class="sourceLineNo">170</span> createBaseZNodes();<a name="line.170"></a> +<span class="sourceLineNo">171</span> } catch (ZooKeeperConnectionException zce) {<a name="line.171"></a> +<span class="sourceLineNo">172</span> try {<a name="line.172"></a> +<span class="sourceLineNo">173</span> this.recoverableZooKeeper.close();<a name="line.173"></a> +<span class="sourceLineNo">174</span> } catch (InterruptedException ie) {<a name="line.174"></a> +<span class="sourceLineNo">175</span> LOG.debug("Encountered InterruptedException when closing " + this.recoverableZooKeeper);<a name="line.175"></a> +<span class="sourceLineNo">176</span> Thread.currentThread().interrupt();<a name="line.176"></a> +<span class="sourceLineNo">177</span> }<a name="line.177"></a> +<span class="sourceLineNo">178</span> throw zce;<a name="line.178"></a> +<span class="sourceLineNo">179</span> }<a name="line.179"></a> +<span class="sourceLineNo">180</span> }<a name="line.180"></a> +<span class="sourceLineNo">181</span> this.forceAbortOnZKDisconnect = forceAbortOnZKDisconnect;<a name="line.181"></a> +<span class="sourceLineNo">182</span> if (this.forceAbortOnZKDisconnect) {<a name="line.182"></a> +<span class="sourceLineNo">183</span> this.zkEventWatcherExecService = Executors.newSingleThreadExecutor();<a name="line.183"></a> +<span class="sourceLineNo">184</span> }<a name="line.184"></a> +<span class="sourceLineNo">185</span> }<a name="line.185"></a> +<span class="sourceLineNo">186</span><a name="line.186"></a> +<span class="sourceLineNo">187</span> private void createBaseZNodes() throws ZooKeeperConnectionException {<a name="line.187"></a> +<span class="sourceLineNo">188</span> try {<a name="line.188"></a> +<span class="sourceLineNo">189</span> // Create all the necessary "directories" of znodes<a name="line.189"></a> +<span class="sourceLineNo">190</span> ZKUtil.createWithParents(this, znodePaths.baseZNode);<a name="line.190"></a> +<span class="sourceLineNo">191</span> ZKUtil.createAndFailSilent(this, znodePaths.rsZNode);<a name="line.191"></a> +<span class="sourceLineNo">192</span> ZKUtil.createAndFailSilent(this, znodePaths.drainingZNode);<a name="line.192"></a> +<span class="sourceLineNo">193</span> ZKUtil.createAndFailSilent(this, znodePaths.tableZNode);<a name="line.193"></a> +<span class="sourceLineNo">194</span> ZKUtil.createAndFailSilent(this, znodePaths.splitLogZNode);<a name="line.194"></a> +<span class="sourceLineNo">195</span> ZKUtil.createAndFailSilent(this, znodePaths.backupMasterAddressesZNode);<a name="line.195"></a> +<span class="sourceLineNo">196</span> ZKUtil.createAndFailSilent(this, znodePaths.tableLockZNode);<a name="line.196"></a> +<span class="sourceLineNo">197</span> ZKUtil.createAndFailSilent(this, znodePaths.recoveringRegionsZNode);<a name="line.197"></a> +<span class="sourceLineNo">198</span> ZKUtil.createAndFailSilent(this, znodePaths.masterMaintZNode);<a name="line.198"></a> +<span class="sourceLineNo">199</span> } catch (KeeperException e) {<a name="line.199"></a> +<span class="sourceLineNo">200</span> throw new ZooKeeperConnectionException(<a name="line.200"></a> +<span class="sourceLineNo">201</span> prefix("Unexpected KeeperException creating base node"), e);<a name="line.201"></a> +<span class="sourceLineNo">202</span> }<a name="line.202"></a> +<span class="sourceLineNo">203</span> }<a name="line.203"></a> +<span class="sourceLineNo">204</span><a name="line.204"></a> +<span class="sourceLineNo">205</span> /** Returns whether the znode is supposed to be readable by the client<a name="line.205"></a> +<span class="sourceLineNo">206</span> * and DOES NOT contain sensitive information (world readable).*/<a name="line.206"></a> +<span class="sourceLineNo">207</span> public boolean isClientReadable(String node) {<a name="line.207"></a> +<span class="sourceLineNo">208</span> // Developer notice: These znodes are world readable. DO NOT add more znodes here UNLESS<a name="line.208"></a> +<span class="sourceLineNo">209</span> // all clients need to access this data to work. Using zk for sharing data to clients (other<a name="line.209"></a> +<span class="sourceLineNo">210</span> // than service lookup case is not a recommended design pattern.<a name="line.210"></a> +<span class="sourceLineNo">211</span> return<a name="line.211"></a> +<span class="sourceLineNo">212</span> node.equals(znodePaths.baseZNode) ||<a name="line.212"></a> +<span class="sourceLineNo">213</span> znodePaths.isAnyMetaReplicaZNode(node) ||<a name="line.213"></a> +<span class="sourceLineNo">214</span> node.equals(znodePaths.masterAddressZNode) ||<a name="line.214"></a> +<span class="sourceLineNo">215</span> node.equals(znodePaths.clusterIdZNode)||<a name="line.215"></a> +<span class="sourceLineNo">216</span> node.equals(znodePaths.rsZNode) ||<a name="line.216"></a> +<span class="sourceLineNo">217</span> // /hbase/table and /hbase/table/foo is allowed, /hbase/table-lock is not<a name="line.217"></a> +<span class="sourceLineNo">218</span> node.equals(znodePaths.tableZNode) ||<a name="line.218"></a> +<span class="sourceLineNo">219</span> node.startsWith(znodePaths.tableZNode + "/");<a name="line.219"></a> +<span class="sourceLineNo">220</span> }<a name="line.220"></a> +<span class="sourceLineNo">221</span><a name="line.221"></a> +<span class="sourceLineNo">222</span> /**<a name="line.222"></a> +<span class="sourceLineNo">223</span> * On master start, we check the znode ACLs under the root directory and set the ACLs properly<a name="line.223"></a> +<span class="sourceLineNo">224</span> * if needed. If the cluster goes from an unsecure setup to a secure setup, this step is needed<a name="line.224"></a> +<span class="sourceLineNo">225</span> * so that the existing znodes created with open permissions are now changed with restrictive<a name="line.225"></a> +<span class="sourceLineNo">226</span> * perms.<a name="line.226"></a> +<span class="sourceLineNo">227</span> */<a name="line.227"></a> +<span class="sourceLineNo">228</span> public void checkAndSetZNodeAcls() {<a name="line.228"></a> +<span class="sourceLineNo">229</span> if (!ZKUtil.isSecureZooKeeper(getConfiguration())) {<a name="line.229"></a> +<span class="sourceLineNo">230</span> LOG.info("not a secure deployment, proceeding");<a name="line.230"></a> +<span class="sourceLineNo">231</span> return;<a name="line.231"></a> +<span class="sourceLineNo">232</span> }<a name="line.232"></a> +<span class="sourceLineNo">233</span><a name="line.233"></a> +<span class="sourceLineNo">234</span> // Check the base znodes permission first. Only do the recursion if base znode's perms are not<a name="line.234"></a> +<span class="sourceLineNo">235</span> // correct.<a name="line.235"></a> +<span class="sourceLineNo">236</span> try {<a name="line.236"></a> +<span class="sourceLineNo">237</span> List<ACL> actualAcls = recoverableZooKeeper.getAcl(znodePaths.baseZNode, new Stat());<a name="line.237"></a> +<span class="sourceLineNo">238</span><a name="line.238"></a> +<span class="sourceLineNo">239</span> if (!isBaseZnodeAclSetup(actualAcls)) {<a name="line.239"></a> +<span class="sourceLineNo">240</span> LOG.info("setting znode ACLs");<a name="line.240"></a> +<span class="sourceLineNo">241</span> setZnodeAclsRecursive(znodePaths.baseZNode);<a name="line.241"></a> +<span class="sourceLineNo">242</span> }<a name="line.242"></a> +<span class="sourceLineNo">243</span> } catch(KeeperException.NoNodeException nne) {<a name="line.243"></a> +<span class="sourceLineNo">244</span> return;<a name="line.244"></a> +<span class="sourceLineNo">245</span> } catch(InterruptedException ie) {<a name="line.245"></a> +<span class="sourceLineNo">246</span> interruptedExceptionNoThrow(ie, false);<a name="line.246"></a> +<span class="sourceLineNo">247</span> } catch (IOException|KeeperException e) {<a name="line.247"></a> +<span class="sourceLineNo">248</span> LOG.warn("Received exception while checking and setting zookeeper ACLs", e);<a name="line.248"></a> +<span class="sourceLineNo">249</span> }<a name="line.249"></a> +<span class="sourceLineNo">250</span> }<a name="line.250"></a> +<span class="sourceLineNo">251</span><a name="line.251"></a> +<span class="sourceLineNo">252</span> /**<a name="line.252"></a> +<span class="sourceLineNo">253</span> * Set the znode perms recursively. This will do post-order recursion, so that baseZnode ACLs<a name="line.253"></a> +<span class="sourceLineNo">254</span> * will be set last in case the master fails in between.<a name="line.254"></a> +<span class="sourceLineNo">255</span> * @param znode<a name="line.255"></a> +<span class="sourceLineNo">256</span> */<a name="line.256"></a> +<span class="sourceLineNo">257</span> private void setZnodeAclsRecursive(String znode) throws KeeperException, InterruptedException {<a name="line.257"></a> +<span class="sourceLineNo">258</span> List<String> children = recoverableZooKeeper.getChildren(znode, false);<a name="line.258"></a> +<span class="sourceLineNo">259</span><a name="line.259"></a> +<span class="sourceLineNo">260</span> for (String child : children) {<a name="line.260"></a> +<span class="sourceLineNo">261</span> setZnodeAclsRecursive(ZKUtil.joinZNode(znode, child));<a name="line.261"></a> +<span class="sourceLineNo">262</span> }<a name="line.262"></a> +<span class="sourceLineNo">263</span> List<ACL> acls = ZKUtil.createACL(this, znode, true);<a name="line.263"></a> +<span class="sourceLineNo">264</span> LOG.info("Setting ACLs for znode:" + znode + " , acl:" + acls);<a name="line.264"></a> +<span class="sourceLineNo">265</span> recoverableZooKeeper.setAcl(znode, acls, -1);<a name="line.265"></a> +<span class="sourceLineNo">266</span> }<a name="line.266"></a> +<span class="sourceLineNo">267</span><a name="line.267"></a> +<span class="sourceLineNo">268</span> /**<a name="line.268"></a> +<span class="sourceLineNo">269</span> * Checks whether the ACLs returned from the base znode (/hbase) is set for secure setup.<a name="line.269"></a> +<span class="sourceLineNo">270</span> * @param acls acls from zookeeper<a name="line.270"></a> +<span class="sourceLineNo">271</span> * @return whether ACLs are set for the base znode<a name="line.271"></a> +<span class="sourceLineNo">272</span> * @throws IOException<a name="line.272"></a> +<span class="sourceLineNo">273</span> */<a name="line.273"></a> +<span class="sourceLineNo">274</span> private boolean isBaseZnodeAclSetup(List<ACL> acls) throws IOException {<a name="line.274"></a> +<span class="sourceLineNo">275</span> if (LOG.isDebugEnabled()) {<a name="line.275"></a> +<span class="sourceLineNo">276</span> LOG.debug("Checking znode ACLs");<a name="line.276"></a> +<span class="sourceLineNo">277</span> }<a name="line.277"></a> +<span class="sourceLineNo">278</span> String[] superUsers = conf.getStrings(Superusers.SUPERUSER_CONF_KEY);<a name="line.278"></a> +<span class="sourceLineNo">279</span> // Check whether ACL set for all superusers<a name="line.279"></a> +<span class="sourceLineNo">280</span> if (superUsers != null && !checkACLForSuperUsers(superUsers, acls)) {<a name="line.280"></a> +<span class="sourceLineNo">281</span> return false;<a name="line.281"></a> +<span class="sourceLineNo">282</span> }<a name="line.282"></a> +<span class="sourceLineNo">283</span><a name="line.283"></a> +<span class="sourceLineNo">284</span> // this assumes that current authenticated user is the same as zookeeper client user<a name="line.284"></a> +<span class="sourceLineNo">285</span> // configured via JAAS<a name="line.285"></a> +<span class="sourceLineNo">286</span> String hbaseUser = UserGroupInformation.getCurrentUser().getShortUserName();<a name="line.286"></a> +<span class="sourceLineNo">287</span><a name="line.287"></a> +<span class="sourceLineNo">288</span> if (acls.isEmpty()) {<a name="line.288"></a> +<span class="sourceLineNo">289</span> if (LOG.isDebugEnabled()) {<a name="line.289"></a> +<span class="sourceLineNo">290</span> LOG.debug("ACL is empty");<a name="line.290"></a> +<span class="sourceLineNo">291</span> }<a name="line.291"></a> +<span class="sourceLineNo">292</span> return false;<a name="line.292"></a> +<span class="sourceLineNo">293</span> }<a name="line.293"></a> +<span class="sourceLineNo">294</span><a name="line.294"></a> +<span class="sourceLineNo">295</span> for (ACL acl : acls) {<a name="line.295"></a> +<span class="sourceLineNo">296</span> int perms = acl.getPerms();<a name="line.296"></a> +<span class="sourceLineNo">297</span> Id id = acl.getId();<a name="line.297"></a> +<span class="sourceLineNo">298</span> // We should only set at most 3 possible ACLs for 3 Ids. One for everyone, one for superuser<a name="line.298"></a> +<span class="sourceLineNo">299</span> // and one for the hbase user<a name="line.299"></a> +<span class="sourceLineNo">300</span> if (Ids.ANYONE_ID_UNSAFE.equals(id)) {<a name="line.300"></a> +<span class="sourceLineNo">301</span> if (perms != Perms.READ) {<a name="line.301"></a> +<span class="sourceLineNo">302</span> if (LOG.isDebugEnabled()) {<a name="line.302"></a> +<span class="sourceLineNo">303</span> LOG.debug(String.format("permissions for '%s' are not correct: have 0x%x, want 0x%x",<a name="line.303"></a> +<span class="sourceLineNo">304</span> id, perms, Perms.READ));<a name="line.304"></a> +<span class="sourceLineNo">305</span> }<a name="line.305"></a> +<span class="sourceLineNo">306</span> return false;<a name="line.306"></a> +<span class="sourceLineNo">307</span> }<a name="line.307"></a> +<span class="sourceLineNo">308</span> } else if (superUsers != null && isSuperUserId(superUsers, id)) {<a name="line.308"></a> +<span class="sourceLineNo">309</span> if (perms != Perms.ALL) {<a name="line.309"></a> +<span class="sourceLineNo">310</span> if (LOG.isDebugEnabled()) {<a name="line.310"></a> +<span class="sourceLineNo">311</span> LOG.debug(String.format("permissions for '%s' are not correct: have 0x%x, want 0x%x",<a name="line.311"></a> +<span class="sourceLineNo">312</span> id, perms, Perms.ALL));<a name="line.312"></a> +<span class="sourceLineNo">313</span> }<a name="line.313"></a> +<span class="sourceLineNo">314</span> return false;<a name="line.314"></a> +<span class="sourceLineNo">315</span> }<a name="line.315"></a> +<span class="sourceLineNo">316</span> } else if ("sasl".equals(id.getScheme())) {<a name="line.316"></a> +<span class="sourceLineNo">317</span> String name = id.getId();<a name="line.317"></a> +<span class="sourceLineNo">318</span> // If ZooKeeper recorded the Kerberos full name in the ACL, use only the shortname<a name="line.318"></a> +<span class="sourceLineNo">319</span> Matcher match = NAME_PATTERN.matcher(name);<a name="line.319"></a> +<span class="sourceLineNo">320</span> if (match.matches()) {<a name="line.320"></a> +<span class="sourceLineNo">321</span> name = match.group(1);<a name="line.321"></a> +<span class="sourceLineNo">322</span> }<a name="line.322"></a> +<span class="sourceLineNo">323</span> if (name.equals(hbaseUser)) {<a name="line.323"></a> +<span class="sourceLineNo">324</span> if (perms != Perms.ALL) {<a name="line.324"></a> +<span class="sourceLineNo">325</span> if (LOG.isDebugEnabled()) {<a name="line.325"></a> +<span class="sourceLineNo">326</span> LOG.debug(String.format("permissions for '%s' are not correct: have 0x%x, want 0x%x",<a name="line.326"></a> +<span class="sourceLineNo">327</span> id, perms, Perms.ALL));<a name="line.327"></a> +<span class="sourceLineNo">328</span> }<a name="line.328"></a> +<span class="sourceLineNo">329</span> return false;<a name="line.329"></a> +<span class="sourceLineNo">330</span> }<a name="line.330"></a> +<span class="sourceLineNo">331</span> } else {<a name="line.331"></a> +<span class="sourceLineNo">332</span> if (LOG.isDebugEnabled()) {<a name="line.332"></a> +<span class="sourceLineNo">333</span> LOG.debug("Unexpected shortname in SASL ACL: " + id);<a name="line.333"></a> +<span class="sourceLineNo">334</span> }<a name="line.334"></a> +<span class="sourceLineNo">335</span> return false;<a name="line.335"></a> +<span class="sourceLineNo">336</span> }<a name="line.336"></a> +<span class="sourceLineNo">337</span> } else {<a name="line.337"></a> +<span class="sourceLineNo">338</span> if (LOG.isDebugEnabled()) {<a name="line.338"></a> +<span class="sourceLineNo">339</span> LOG.debug("unexpected ACL id '" + id + "'");<a name="line.339"></a> +<span class="sourceLineNo">340</span> }<a name="line.340"></a> +<span class="sourceLineNo">341</span> return false;<a name="line.341"></a> +<span class="sourceLineNo">342</span> }<a name="line.342"></a> +<span class="sourceLineNo">343</span> }<a name="line.343"></a> +<span class="sourceLineNo">344</span> return true;<a name="line.344"></a> +<span class="sourceLineNo">345</span> }<a name="line.345"></a> +<span class="sourceLineNo">346</span><a name="line.346"></a> +<span class="sourceLineNo">347</span> /*<a name="line.347"></a> +<span class="sourceLineNo">348</span> * Validate whether ACL set for all superusers.<a name="line.348"></a> +<span class="sourceLineNo">349</span> */<a name="line.349"></a> +<span class="sourceLineNo">350</span> private boolean checkACLForSuperUsers(String[] superUsers, List<ACL> acls) {<a name="line.350"></a> +<span class="sourceLineNo">351</span> for (String user : superUsers) {<a name="line.351"></a> +<span class="sourceLineNo">352</span> boolean hasAccess = false;<a name="line.352"></a> +<span class="sourceLineNo">353</span> // TODO: Validate super group members also when ZK supports setting node ACL for groups.<a name="line.353"></a> +<span class="sourceLineNo">354</span> if (!AuthUtil.isGroupPrincipal(user)) {<a name="line.354"></a> +<span class="sourceLineNo">355</span> for (ACL acl : acls) {<a name="line.355"></a> +<span class="sourceLineNo">356</span> if (user.equals(acl.getId().getId())) {<a name="line.356"></a> +<span class="sourceLineNo">357</span> if (acl.getPerms() == Perms.ALL) {<a name="line.357"></a> +<span class="sourceLineNo">358</span> hasAccess = true;<a name="line.358"></a> +<span class="sourceLineNo">359</span> } else {<a name="line.359"></a> +<span class="sourceLineNo">360</span> if (LOG.isDebugEnabled()) {<a name="line.360"></a> +<span class="sourceLineNo">361</span> LOG.debug(String.format(<a name="line.361"></a> +<span class="sourceLineNo">362</span> "superuser '%s' does not have correct permissions: have 0x%x, want 0x%x",<a name="line.362"></a> +<span class="sourceLineNo">363</span> acl.getId().getId(), acl.getPerms(), Perms.ALL));<a name="line.363"></a> +<span class="sourceLineNo">364</span> }<a name="line.364"></a> +<span class="sourceLineNo">365</span> }<a name="line.365"></a> +<span class="sourceLineNo">366</span> break;<a name="line.366"></a> +<span class="sourceLineNo">367</span> }<a name="line.367"></a> +<span class="sourceLineNo">368</span> }<a name="line.368"></a> +<span class="sourceLineNo">369</span> if (!hasAccess) {<a name="line.369"></a> +<span class="sourceLineNo">370</span> return false;<a name="line.370"></a> +<span class="sourceLineNo">371</span> }<a name="line.371"></a> +<span class="sourceLineNo">372</span> }<a name="line.372"></a> +<span class="sourceLineNo">373</span> }<a name="line.373"></a> +<span class="sourceLineNo">374</span> return true;<a name="line.374"></a> +<span class="sourceLineNo">375</span> }<a name="line.375"></a> +<span class="sourceLineNo">376</span><a name="line.376"></a> +<span class="sourceLineNo">377</span> /*<a name="line.377"></a> +<span class="sourceLineNo">378</span> * Validate whether ACL ID is superuser.<a name="line.378"></a> +<span class="sourceLineNo">379</span> */<a name="line.379"></a> +<span class="sourceLineNo">380</span> public static boolean isSuperUserId(String[] superUsers, Id id) {<a name="line.380"></a> +<span class="sourceLineNo">381</span> for (String user : superUsers) {<a name="line.381"></a> +<span class="sourceLineNo">382</span> // TODO: Validate super group members also when ZK supports setting node ACL for groups.<a name="line.382"></a> +<span class="sourceLineNo">383</span> if (!AuthUtil.isGroupPrincipal(user) && new Id("sasl", user).equals(id)) {<a name="line.383"></a> +<span class="sourceLineNo">384</span> return true;<a name="line.384"></a> +<span class="sourceLineNo">385</span> }<a name="line.385"></a> +<span class="sourceLineNo">386</span> }<a name="line.386"></a> +<span class="sourceLineNo">387</span> return false;<a name="line.387"></a> +<span class="sourceLineNo">388</span> }<a name="line.388"></a> +<span class="sourceLineNo">389</span><a name="line.389"></a> +<span class="sourceLineNo">390</span> @Override<a name="line.390"></a> +<span class="sourceLineNo">391</span> public String toString() {<a name="line.391"></a> +<span class="sourceLineNo">392</span> return this.identifier + ", quorum=" + quorum + ", baseZNode=" + znodePaths.baseZNode;<a name="line.392"></a> +<span class="sourceLineNo">393</span> }<a name="line.393"></a> +<span class="sourceLineNo">394</span><a name="line.394"></a> +<span class="sourceLineNo">395</span> /**<a name="line.395"></a> +<span class="sourceLineNo">396</span> * Adds this instance's identifier as a prefix to the passed <code>str</code><a name="line.396"></a> +<span class="sourceLineNo">397</span> * @param str String to amend.<a name="line.397"></a> +<span class="sourceLineNo">398</span> * @return A new string with this instance's identifier as prefix: e.g.<a name="line.398"></a> +<span class="sourceLineNo">399</span> * if passed 'hello world', the returned string could be<a name="line.399"></a> +<span class="sourceLineNo">400</span> */<a name="line.400"></a> +<span class="sourceLineNo">401</span> public String prefix(final String str) {<a name="line.401"></a> +<span class="sourceLineNo">402</span> return this.toString() + " " + str;<a name="line.402"></a> +<span class="sourceLineNo">403</span> }<a name="line.403"></a> +<span class="sourceLineNo">404</span><a name="line.404"></a> +<span class="sourceLineNo">405</span> /**<a name="line.405"></a> +<span class="sourceLineNo">406</span> * Get the znodes corresponding to the meta replicas from ZK<a name="line.406"></a> +<span class="sourceLineNo">407</span> * @return list of znodes<a name="line.407"></a> +<span class="sourceLineNo">408</span> * @throws KeeperException<a name="line.408"></a> +<span class="sourceLineNo">409</span> */<a name="line.409"></a> +<span class="sourceLineNo">410</span> public List<String> getMetaReplicaNodes() throws KeeperException {<a name="line.410"></a> +<span class="sourceLineNo">411</span> List<String> childrenOfBaseNode = ZKUtil.listChildrenNoWatch(this, znodePaths.baseZNode);<a name="line.411"></a> +<span class="sourceLineNo">412</span> List<String> metaReplicaNodes = new ArrayList<>(2);<a name="line.412"></a> +<span class="sourceLineNo">413</span> if (childrenOfBaseNode != null) {<a name="line.413"></a> +<span class="sourceLineNo">414</span> String pattern = conf.get("zookeeper.znode.metaserver","meta-region-server");<a name="line.414"></a> +<span class="sourceLineNo">415</span> for (String child : childrenOfBaseNode) {<a name="line.415"></a> +<span class="sourceLineNo">416</span> if (child.startsWith(pattern)) metaReplicaNodes.add(child);<a name="line.416"></a> +<span class="sourceLineNo">417</span> }<a name="line.417"></a> +<span class="sourceLineNo">418</span> }<a name="line.418"></a> +<span class="sourceLineNo">419</span> return metaReplicaNodes;<a name="line.419"></a> +<span class="sourceLineNo">420</span> }<a name="line.420"></a> +<span class="sourceLineNo">421</span><a 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class="sourceLineNo">457</span> /**<a name="line.457"></a> +<span class="sourceLineNo">458</span> * @return The number of currently registered listeners<a name="line.458"></a> +<span class="sourceLineNo">459</span> */<a name="line.459"></a> +<span class="sourceLineNo">460</span> public int getNumberOfListeners() {<a name="line.460"></a> +<span class="sourceLineNo">461</span> return listeners.size();<a name="line.461"></a> +<span class="sourceLineNo">462</span> }<a name="line.462"></a> +<span class="sourceLineNo">463</span><a name="line.463"></a> +<span class="sourceLineNo">464</span> /**<a name="line.464"></a> +<span class="sourceLineNo">465</span> * Get the connection to ZooKeeper.<a name="line.465"></a> +<span class="sourceLineNo">466</span> * @return connection reference to zookeeper<a name="line.466"></a> +<span class="sourceLineNo">467</span> */<a name="line.467"></a> +<span class="sourceLineNo">468</span> public RecoverableZooKeeper getRecoverableZooKeeper() {<a name="line.468"></a> +<span class="sourceLineNo">469</span> return recoverableZooKeeper;<a name="line.469"></a> +<span class="sourceLineNo">470</span> }<a name="line.470"></a> +<span class="sourceLineNo">471</span><a name="line.471"></a> +<span class="sourceLineNo">472</span> public void reconnectAfterExpiration() throws IOException, KeeperException, InterruptedException {<a name="line.472"></a> +<span class="sourceLineNo">473</span> recoverableZooKeeper.reconnectAfterExpiration();<a name="line.473"></a> +<span class="sourceLineNo">474</span> }<a name="line.474"></a> +<span class="sourceLineNo">475</span><a name="line.475"></a> +<span class="sourceLineNo">476</span> /**<a name="line.476"></a> +<span class="sourceLineNo">477</span> * Get the quorum address of this instance.<a name="line.477"></a> +<span class="sourceLineNo">478</span> * @return quorum string of this zookeeper connection instance<a name="line.478"></a> +<span class="sourceLineNo">479</span> */<a name="line.479"></a> +<span class="sourceLineNo">480</span> public String getQuorum() {<a name="line.480"></a> +<span class="sourceLineNo">481</span> return quorum;<a name="line.481"></a> +<span class="sourceLineNo">482</span> }<a name="line.482"></a> +<span class="sourceLineNo">483</span><a name="line.483"></a> +<span class="sourceLineNo">484</span> /**<a name="line.484"></a> +<span class="sourceLineNo">485</span> * Get the znodePaths.<a name="line.485"></a> +<span class="sourceLineNo">486</span> * <p><a name="line.486"></a> +<span class="sourceLineNo">487</span> * Mainly used for mocking as mockito can not mock a field access.<a name="line.487"></a> +<span class="sourceLineNo">488</span> */<a name="line.488"></a> +<span class="sourceLineNo">489</span> public ZNodePaths getZNodePaths() {<a name="line.489"></a> +<span class="sourceLineNo">490</span> return znodePaths;<a name="line.490"></a> +<span class="sourceLineNo">491</span> }<a name="line.491"></a> +<span class="sourceLineNo">492</span><a name="line.492"></a> +<span class="sourceLineNo">493</span> /**<a name="line.493"></a> +<span class="sourceLineNo">494</span> * Method called from ZooKeeper for events and connection status.<a name="line.494"></a> +<span class="sourceLineNo">495</span> * <p><a name="line.495"></a> +<span class="sourceLineNo">496</span> * Valid events are passed along to listeners. 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But, since<a name="line.551"></a> +<span class="sourceLineNo">552</span> * we send a KeeperException.SessionExpiredException along with the abort<a name="line.552"></a> +<span class="sourceLineNo">553</span> * call, it's possible for the Abortable to catch it and try to create a new<a name="line.553"></a> +<span class="sourceLineNo">554</span> * session with ZooKeeper. This is what the client does in HCM.<a name="line.554"></a> +<span class="sourceLineNo">555</span> * <p><a name="line.555"></a> +<span class="sourceLineNo">556</span> * @param event<a name="line.556"></a> +<span class="sourceLineNo">557</span> */<a name="line.557"></a> +<span class="sourceLineNo">558</span> private void connectionEvent(WatchedEvent event) {<a name="line.558"></a> +<span class="sourceLineNo">559</span> switch(event.getState()) {<a name="line.559"></a> +<span class="sourceLineNo">560</span> case SyncConnected:<a name="line.560"></a> +<span class="sourceLineNo">561</span> this.identifier = this.prefix + "-0x" +<a name="line.561"></a> +<span class="sourceLineNo">562</span> Long.toHexString(this.recoverableZooKeeper.getSessionId());<a name="line.562"></a> +<span class="sourceLineNo">563</span> // Update our identifier. Otherwise ignore.<a name="line.563"></a> +<span class="sourceLineNo">564</span> LOG.debug(this.identifier + " connected");<a name="line.564"></a> +<span class="sourceLineNo">565</span> connected.set(true);<a name="line.565"></a> +<span class="sourceLineNo">566</span> break;<a name="line.566"></a> +<span class="sourceLineNo">567</span><a name="line.567"></a> +<span class="sourceLineNo">568</span> // Abort the server if Disconnected or Expired<a name="line.568"></a> +<span class="sourceLineNo">569</span> case Disconnected:<a name="line.569"></a> +<span class="sourceLineNo">570</span> LOG.debug(prefix("Received Disconnected from ZooKeeper."));<a name="line.570"></a> +<span class="sourceLineNo">571</span> if (forceAbortOnZKDisconnect) {<a name="line.571"></a> +<span class="sourceLineNo">572</span> connected.set(false);<a name="line.572"></a> +<span class="sourceLineNo">573</span> ZKDisconnectEventWatcher task = new ZKDisconnectEventWatcher();<a name="line.573"></a> +<span class="sourceLineNo">574</span> zkEventWatcherExecService.execute(task);<a name="line.574"></a> +<span class="sourceLineNo">575</span> } else {<a name="line.575"></a> +<span class="sourceLineNo">576</span> LOG.debug("Received Disconnected from ZooKeeper, ignoring.");<a name="line.576"></a> +<span class="sourceLineNo">577</span> }<a name="line.577"></a> +<span class="sourceLineNo">578</span> break;<a name="line.578"></a> +<span class="sourceLineNo">579</span><a name="line.579"></a> +<span class="sourceLineNo">580</span> case Expired:<a name="line.580"></a> +<span class="sourceLineNo">581</span> String msg = prefix(this.identifier + " received expired from " +<a name="line.581"></a> +<span class="sourceLineNo">582</span> "ZooKeeper, aborting");<a name="line.582"></a> +<span class="sourceLineNo">583</span> // TODO: One thought is to add call to ZooKeeperListener so say,<a name="line.583"></a> +<span class="sourceLineNo">584</span> // ZooKeeperNodeTracker can zero out its data values.<a name="line.584"></a> +<span class="sourceLineNo">585</span> if (this.abortable != null) {<a name="line.585"></a> +<span class="sourceLineNo">586</span> this.abortable.abort(msg, new KeeperException.SessionExpiredException());<a name="line.586"></a> +<span class="sourceLineNo">587</span> }<a name="line.587"></a> +<span class="sourceLineNo">588</span> break;<a name="line.588"></a> +<span class="sourceLineNo">589</span><a name="line.589"></a> +<span class="sourceLineNo">590</span> case ConnectedReadOnly:<a name="line.590"></a> +<span class="sourceLineNo">591</span> case SaslAuthenticated:<a name="line.591"></a> +<span class="sourceLineNo">592</span> case AuthFailed:<a name="line.592"></a> +<span class="sourceLineNo">593</span> break;<a name="line.593"></a> +<span class="sourceLineNo">594</span><a name="line.594"></a> +<span class="sourceLineNo">595</span> default:<a name="line.595"></a> +<span class="sourceLineNo">596</span> throw new IllegalStateException("Received event is not valid: " + event.getState());<a name="line.596"></a> +<span class="sourceLineNo">597</span> }<a name="line.597"></a> +<span class="sourceLineNo">598</span> }<a name="line.598"></a> +<span class="sourceLineNo">599</span><a name="line.599"></a> +<span class="sourceLineNo">600</span> /*<a name="line.600"></a> +<span class="sourceLineNo">601</span> * Task to watch zookeper disconnect event.<a name="line.601"></a> +<span class="sourceLineNo">602</span> */<a name="line.602"></a> +<span class="sourceLineNo">603</span> class ZKDisconnectEventWatcher implements Runnable {<a name="line.603"></a> +<span class="sourceLineNo">604</span> @Override<a name="line.604"></a> +<span class="sourceLineNo">605</span> public void run() {<a name="line.605"></a> +<span class="sourceLineNo">606</span> if (connected.get()) {<a name="line.606"></a> +<span class="sourceLineNo">607</span> return;<a name="line.607"></a> +<span class="sourceLineNo">608</span> }<a name="line.608"></a> +<span class="sourceLineNo">609</span><a name="line.609"></a> +<span class="sourceLineNo">610</span> long startTime = EnvironmentEdgeManager.currentTime();<a name="line.610"></a> +<span class="sourceLineNo">611</span> while (EnvironmentEdgeManager.currentTime() - startTime < connWaitTimeOut) {<a name="line.611"></a> +<span class="sourceLineNo">612</span> if (connected.get()) {<a name="line.612"></a> +<span class="sourceLineNo">613</span> LOG.debug("Client got reconnected to zookeeper.");<a name="line.613"></a> +<span class="sourceLineNo">614</span> return;<a name="line.614"></a> +<span class="sourceLineNo">615</span> }<a name="line.615"></a> +<span class="sourceLineNo">616</span> try {<a name="line.616"></a> +<span class="sourceLineNo">617</span> Thread.sleep(100);<a name="line.617"></a> +<span class="sourceLineNo">618</span> } catch (InterruptedException e) {<a name="line.618"></a> +<span class="sourceLineNo">619</span> Thread.currentThread().interrupt();<a name="line.619"></a> +<span class="sourceLineNo">620</span> break;<a name="line.620"></a> +<span class="sourceLineNo">621</span> }<a name="line.621"></a> +<span class="sourceLineNo">622</span> }<a name="line.622"></a> +<span class="sourceLineNo">623</span><a name="line.623"></a> +<span class="sourceLineNo">624</span> if (!connected.get() && abortable != null) {<a name="line.624"></a> +<span class="sourceLineNo">625</span> String msg =<a name="line.625"></a> +<span class="sourceLineNo">626</span> prefix("Couldn't connect to ZooKeeper after waiting " + connWaitTimeOut<a name="line.626"></a> +<span class="sourceLineNo">627</span> + " ms, aborting");<a name="line.627"></a> +<span class="sourceLineNo">628</span> abortable.abort(msg, new KeeperException.ConnectionLossException());<a name="line.628"></a> +<span class="sourceLineNo">629</span> }<a name="line.629"></a> +<span class="sourceLineNo">630</span> }<a name="line.630"></a> +<span class="sourceLineNo">631</span> }<a name="line.631"></a> +<span class="sourceLineNo">632</span><a name="line.632"></a> +<span class="sourceLineNo">633</span> /**<a name="line.633"></a> +<span class="sourceLineNo">634</span> * Forces a synchronization of this ZooKeeper client connection.<a name="line.634"></a> +<span class="sourceLineNo">635</span> * <p><a name="line.635"></a> +<span class="sourceLineNo">636</span> * Executing this method before running other methods will ensure that the<a name="line.636"></a> +<span class="sourceLineNo">637</span> * subsequent operations are up-to-date and consistent as of the time that<a name="line.637"></a> +<span class="sourceLineNo">638</span> * the sync is complete.<a name="line.638"></a> +<span class="sourceLineNo">639</span> * <p><a name="line.639"></a> +<span class="sourceLineNo">640</span> * This is used for compareAndSwap type operations where we need to read the<a name="line.640"></a> +<span class="sourceLineNo">641</span> * data of an existing node and delete or transition that node, utilizing the<a name="line.641"></a> +<span class="sourceLineNo">642</span> * previously read version and data. 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" and rethrow a SystemErrorException" : "")),<a name="line.683"></a> +<span class="sourceLineNo">684</span> ie);<a name="line.684"></a> +<span class="sourceLineNo">685</span> // At least preserve interrupt.<a name="line.685"></a> +<span class="sourceLineNo">686</span> Thread.currentThread().interrupt();<a name="line.686"></a> +<span class="sourceLineNo">687</span> }<a name="line.687"></a> +<span class="sourceLineNo">688</span><a name="line.688"></a> +<span class="sourceLineNo">689</span> /**<a name="line.689"></a> +<span class="sourceLineNo">690</span> * Close the connection to ZooKeeper.<a name="line.690"></a> +<span class="sourceLineNo">691</span> *<a name="line.691"></a> +<span class="sourceLineNo">692</span> */<a name="line.692"></a> +<span class="sourceLineNo">693</span> @Override<a name="line.693"></a> +<span class="sourceLineNo">694</span> public void close() {<a name="line.694"></a> +<span class="sourceLineNo">695</span> try {<a name="line.695"></a> +<span class="sourceLineNo">696</span> recoverableZooKeeper.close();<a name="line.696"></a> +<span class="sourceLineNo">697</span> if (zkEventWatcherExecService != null) {<a name="line.697"></a> +<span class="sourceLineNo">698</span> zkEventWatcherExecService.shutdown();<a name="line.698"></a> +<span class="sourceLineNo">699</span> zkEventWatcherExecService = null;<a name="line.699"></a> +<span class="sourceLineNo">700</span> }<a name="line.700"></a> +<span class="sourceLineNo">701</span> } catch (InterruptedException e) {<a name="line.701"></a> +<span class="sourceLineNo">702</span> Thread.currentThread().interrupt();<a name="line.702"></a> +<span class="sourceLineNo">703</span> }<a name="line.703"></a> +<span class="sourceLineNo">704</span> }<a name="line.704"></a> +<span class="sourceLineNo">705</span><a name="line.705"></a> +<span class="sourceLineNo">706</span> public Configuration getConfiguration() {<a name="line.706"></a> +<span class="sourceLineNo">707</span> return conf;<a name="line.707"></a> +<span class="sourceLineNo">708</span> }<a name="line.708"></a> +<span class="sourceLineNo">709</span><a name="line.709"></a> +<span class="sourceLineNo">710</span> @Override<a name="line.710"></a> +<span class="sourceLineNo">711</span> public void abort(String why, Throwable e) {<a name="line.711"></a> +<span class="sourceLineNo">712</span> if (this.abortable != null) this.abortable.abort(why, e);<a name="line.712"></a> +<span class="sourceLineNo">713</span> else this.aborted = true;<a name="line.713"></a> +<span class="sourceLineNo">714</span> }<a name="line.714"></a> +<span class="sourceLineNo">715</span><a name="line.715"></a> +<span class="sourceLineNo">716</span> @Override<a name="line.716"></a> +<span class="sourceLineNo">717</span> public boolean isAborted() {<a name="line.717"></a> +<span class="sourceLineNo">718</span> return this.abortable == null? this.aborted: this.abortable.isAborted();<a name="line.718"></a> +<span class="sourceLineNo">719</span> }<a name="line.719"></a> +<span class="sourceLineNo">720</span>}<a name="line.720"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html>
