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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/11/15 14:54:59 UTC
[17/51] [partial] hbase-site git commit: Published site at
130057f13774f6b213cdb06952c805a29d59396e.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/68eae623/devapidocs/src-html/org/apache/hadoop/hbase/security/access/TableAuthManager.PermissionCache.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/security/access/TableAuthManager.PermissionCache.html b/devapidocs/src-html/org/apache/hadoop/hbase/security/access/TableAuthManager.PermissionCache.html
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--- a/devapidocs/src-html/org/apache/hadoop/hbase/security/access/TableAuthManager.PermissionCache.html
+++ /dev/null
@@ -1,859 +0,0 @@
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-<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
-<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
-<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
-<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
-<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
-<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
-<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
-<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
-<span class="sourceLineNo">009</span> *<a name="line.9"></a>
-<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
-<span class="sourceLineNo">011</span> *<a name="line.11"></a>
-<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
-<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
-<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
-<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
-<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
-<span class="sourceLineNo">017</span> */<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.security.access;<a name="line.19"></a>
-<span class="sourceLineNo">020</span><a name="line.20"></a>
-<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.util.CollectionUtils.computeIfAbsent;<a name="line.21"></a>
-<span class="sourceLineNo">022</span><a name="line.22"></a>
-<span class="sourceLineNo">023</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import org.apache.hbase.thirdparty.com.google.common.collect.ArrayListMultimap;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.hbase.thirdparty.com.google.common.collect.ListMultimap;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.26"></a>
-<span class="sourceLineNo">027</span><a name="line.27"></a>
-<span class="sourceLineNo">028</span>import java.io.Closeable;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import java.io.IOException;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import java.util.HashMap;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import java.util.List;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import java.util.Map;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.util.concurrent.ConcurrentSkipListMap;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.34"></a>
-<span class="sourceLineNo">035</span><a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.conf.Configuration;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.AuthUtil;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.Cell;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.TableName;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.zookeeper.ZKWatcher;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.log.HBaseMarkers;<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.security.User;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.security.UserProvider;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.zookeeper.KeeperException;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.slf4j.Logger;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.slf4j.LoggerFactory;<a name="line.50"></a>
-<span class="sourceLineNo">051</span><a name="line.51"></a>
-<span class="sourceLineNo">052</span>/**<a name="line.52"></a>
-<span class="sourceLineNo">053</span> * Performs authorization checks for a given user's assigned permissions<a name="line.53"></a>
-<span class="sourceLineNo">054</span> */<a name="line.54"></a>
-<span class="sourceLineNo">055</span>@InterfaceAudience.Private<a name="line.55"></a>
-<span class="sourceLineNo">056</span>public class TableAuthManager implements Closeable {<a name="line.56"></a>
-<span class="sourceLineNo">057</span> private static class PermissionCache<T extends Permission> {<a name="line.57"></a>
-<span class="sourceLineNo">058</span> /** Cache of user permissions */<a name="line.58"></a>
-<span class="sourceLineNo">059</span> private ListMultimap<String,T> userCache = ArrayListMultimap.create();<a name="line.59"></a>
-<span class="sourceLineNo">060</span> /** Cache of group permissions */<a name="line.60"></a>
-<span class="sourceLineNo">061</span> private ListMultimap<String,T> groupCache = ArrayListMultimap.create();<a name="line.61"></a>
-<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span> public List<T> getUser(String user) {<a name="line.63"></a>
-<span class="sourceLineNo">064</span> return userCache.get(user);<a name="line.64"></a>
-<span class="sourceLineNo">065</span> }<a name="line.65"></a>
-<span class="sourceLineNo">066</span><a name="line.66"></a>
-<span class="sourceLineNo">067</span> public void putUser(String user, T perm) {<a name="line.67"></a>
-<span class="sourceLineNo">068</span> userCache.put(user, perm);<a name="line.68"></a>
-<span class="sourceLineNo">069</span> }<a name="line.69"></a>
-<span class="sourceLineNo">070</span><a name="line.70"></a>
-<span class="sourceLineNo">071</span> public List<T> replaceUser(String user, Iterable<? extends T> perms) {<a name="line.71"></a>
-<span class="sourceLineNo">072</span> return userCache.replaceValues(user, perms);<a name="line.72"></a>
-<span class="sourceLineNo">073</span> }<a name="line.73"></a>
-<span class="sourceLineNo">074</span><a name="line.74"></a>
-<span class="sourceLineNo">075</span> public List<T> getGroup(String group) {<a name="line.75"></a>
-<span class="sourceLineNo">076</span> return groupCache.get(group);<a name="line.76"></a>
-<span class="sourceLineNo">077</span> }<a name="line.77"></a>
-<span class="sourceLineNo">078</span><a name="line.78"></a>
-<span class="sourceLineNo">079</span> public void putGroup(String group, T perm) {<a name="line.79"></a>
-<span class="sourceLineNo">080</span> groupCache.put(group, perm);<a name="line.80"></a>
-<span class="sourceLineNo">081</span> }<a name="line.81"></a>
-<span class="sourceLineNo">082</span><a name="line.82"></a>
-<span class="sourceLineNo">083</span> public List<T> replaceGroup(String group, Iterable<? extends T> perms) {<a name="line.83"></a>
-<span class="sourceLineNo">084</span> return groupCache.replaceValues(group, perms);<a name="line.84"></a>
-<span class="sourceLineNo">085</span> }<a name="line.85"></a>
-<span class="sourceLineNo">086</span><a name="line.86"></a>
-<span class="sourceLineNo">087</span> /**<a name="line.87"></a>
-<span class="sourceLineNo">088</span> * Returns a combined map of user and group permissions, with group names<a name="line.88"></a>
-<span class="sourceLineNo">089</span> * distinguished according to {@link AuthUtil#isGroupPrincipal(String)}.<a name="line.89"></a>
-<span class="sourceLineNo">090</span> */<a name="line.90"></a>
-<span class="sourceLineNo">091</span> public ListMultimap<String,T> getAllPermissions() {<a name="line.91"></a>
-<span class="sourceLineNo">092</span> ListMultimap<String,T> tmp = ArrayListMultimap.create();<a name="line.92"></a>
-<span class="sourceLineNo">093</span> tmp.putAll(userCache);<a name="line.93"></a>
-<span class="sourceLineNo">094</span> for (String group : groupCache.keySet()) {<a name="line.94"></a>
-<span class="sourceLineNo">095</span> tmp.putAll(AuthUtil.toGroupEntry(group), groupCache.get(group));<a name="line.95"></a>
-<span class="sourceLineNo">096</span> }<a name="line.96"></a>
-<span class="sourceLineNo">097</span> return tmp;<a name="line.97"></a>
-<span class="sourceLineNo">098</span> }<a name="line.98"></a>
-<span class="sourceLineNo">099</span> }<a name="line.99"></a>
-<span class="sourceLineNo">100</span><a name="line.100"></a>
-<span class="sourceLineNo">101</span> private static final Logger LOG = LoggerFactory.getLogger(TableAuthManager.class);<a name="line.101"></a>
-<span class="sourceLineNo">102</span><a name="line.102"></a>
-<span class="sourceLineNo">103</span> /** Cache of global permissions */<a name="line.103"></a>
-<span class="sourceLineNo">104</span> private volatile PermissionCache<Permission> globalCache;<a name="line.104"></a>
-<span class="sourceLineNo">105</span><a name="line.105"></a>
-<span class="sourceLineNo">106</span> private ConcurrentSkipListMap<TableName, PermissionCache<TablePermission>> tableCache =<a name="line.106"></a>
-<span class="sourceLineNo">107</span> new ConcurrentSkipListMap<>();<a name="line.107"></a>
-<span class="sourceLineNo">108</span><a name="line.108"></a>
-<span class="sourceLineNo">109</span> private ConcurrentSkipListMap<String, PermissionCache<TablePermission>> nsCache =<a name="line.109"></a>
-<span class="sourceLineNo">110</span> new ConcurrentSkipListMap<>();<a name="line.110"></a>
-<span class="sourceLineNo">111</span><a name="line.111"></a>
-<span class="sourceLineNo">112</span> private Configuration conf;<a name="line.112"></a>
-<span class="sourceLineNo">113</span> private ZKPermissionWatcher zkperms;<a name="line.113"></a>
-<span class="sourceLineNo">114</span> private final AtomicLong mtime = new AtomicLong(0L);<a name="line.114"></a>
-<span class="sourceLineNo">115</span><a name="line.115"></a>
-<span class="sourceLineNo">116</span> private TableAuthManager(ZKWatcher watcher, Configuration conf)<a name="line.116"></a>
-<span class="sourceLineNo">117</span> throws IOException {<a name="line.117"></a>
-<span class="sourceLineNo">118</span> this.conf = conf;<a name="line.118"></a>
-<span class="sourceLineNo">119</span><a name="line.119"></a>
-<span class="sourceLineNo">120</span> // initialize global permissions based on configuration<a name="line.120"></a>
-<span class="sourceLineNo">121</span> globalCache = initGlobal(conf);<a name="line.121"></a>
-<span class="sourceLineNo">122</span><a name="line.122"></a>
-<span class="sourceLineNo">123</span> this.zkperms = new ZKPermissionWatcher(watcher, this, conf);<a name="line.123"></a>
-<span class="sourceLineNo">124</span> try {<a name="line.124"></a>
-<span class="sourceLineNo">125</span> this.zkperms.start();<a name="line.125"></a>
-<span class="sourceLineNo">126</span> } catch (KeeperException ke) {<a name="line.126"></a>
-<span class="sourceLineNo">127</span> LOG.error("ZooKeeper initialization failed", ke);<a name="line.127"></a>
-<span class="sourceLineNo">128</span> }<a name="line.128"></a>
-<span class="sourceLineNo">129</span> }<a name="line.129"></a>
-<span class="sourceLineNo">130</span><a name="line.130"></a>
-<span class="sourceLineNo">131</span> @Override<a name="line.131"></a>
-<span class="sourceLineNo">132</span> public void close() {<a name="line.132"></a>
-<span class="sourceLineNo">133</span> this.zkperms.close();<a name="line.133"></a>
-<span class="sourceLineNo">134</span> }<a name="line.134"></a>
-<span class="sourceLineNo">135</span><a name="line.135"></a>
-<span class="sourceLineNo">136</span> /**<a name="line.136"></a>
-<span class="sourceLineNo">137</span> * Returns a new {@code PermissionCache} initialized with permission assignments<a name="line.137"></a>
-<span class="sourceLineNo">138</span> * from the {@code hbase.superuser} configuration key.<a name="line.138"></a>
-<span class="sourceLineNo">139</span> */<a name="line.139"></a>
-<span class="sourceLineNo">140</span> private PermissionCache<Permission> initGlobal(Configuration conf) throws IOException {<a name="line.140"></a>
-<span class="sourceLineNo">141</span> UserProvider userProvider = UserProvider.instantiate(conf);<a name="line.141"></a>
-<span class="sourceLineNo">142</span> User user = userProvider.getCurrent();<a name="line.142"></a>
-<span class="sourceLineNo">143</span> if (user == null) {<a name="line.143"></a>
-<span class="sourceLineNo">144</span> throw new IOException("Unable to obtain the current user, " +<a name="line.144"></a>
-<span class="sourceLineNo">145</span> "authorization checks for internal operations will not work correctly!");<a name="line.145"></a>
-<span class="sourceLineNo">146</span> }<a name="line.146"></a>
-<span class="sourceLineNo">147</span> PermissionCache<Permission> newCache = new PermissionCache<>();<a name="line.147"></a>
-<span class="sourceLineNo">148</span> String currentUser = user.getShortName();<a name="line.148"></a>
-<span class="sourceLineNo">149</span><a name="line.149"></a>
-<span class="sourceLineNo">150</span> // the system user is always included<a name="line.150"></a>
-<span class="sourceLineNo">151</span> List<String> superusers = Lists.asList(currentUser, conf.getStrings(<a name="line.151"></a>
-<span class="sourceLineNo">152</span> Superusers.SUPERUSER_CONF_KEY, new String[0]));<a name="line.152"></a>
-<span class="sourceLineNo">153</span> if (superusers != null) {<a name="line.153"></a>
-<span class="sourceLineNo">154</span> for (String name : superusers) {<a name="line.154"></a>
-<span class="sourceLineNo">155</span> if (AuthUtil.isGroupPrincipal(name)) {<a name="line.155"></a>
-<span class="sourceLineNo">156</span> newCache.putGroup(AuthUtil.getGroupName(name),<a name="line.156"></a>
-<span class="sourceLineNo">157</span> new Permission(Permission.Action.values()));<a name="line.157"></a>
-<span class="sourceLineNo">158</span> } else {<a name="line.158"></a>
-<span class="sourceLineNo">159</span> newCache.putUser(name, new Permission(Permission.Action.values()));<a name="line.159"></a>
-<span class="sourceLineNo">160</span> }<a name="line.160"></a>
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-<span class="sourceLineNo">165</span><a name="line.165"></a>
-<span class="sourceLineNo">166</span> public ZKPermissionWatcher getZKPermissionWatcher() {<a name="line.166"></a>
-<span class="sourceLineNo">167</span> return this.zkperms;<a name="line.167"></a>
-<span class="sourceLineNo">168</span> }<a name="line.168"></a>
-<span class="sourceLineNo">169</span><a name="line.169"></a>
-<span class="sourceLineNo">170</span> public void refreshTableCacheFromWritable(TableName table,<a name="line.170"></a>
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-<span class="sourceLineNo">172</span> if (data != null && data.length > 0) {<a name="line.172"></a>
-<span class="sourceLineNo">173</span> ListMultimap<String,TablePermission> perms;<a name="line.173"></a>
-<span class="sourceLineNo">174</span> try {<a name="line.174"></a>
-<span class="sourceLineNo">175</span> perms = AccessControlLists.readPermissions(data, conf);<a name="line.175"></a>
-<span class="sourceLineNo">176</span> } catch (DeserializationException e) {<a name="line.176"></a>
-<span class="sourceLineNo">177</span> throw new IOException(e);<a name="line.177"></a>
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-<span class="sourceLineNo">179</span><a name="line.179"></a>
-<span class="sourceLineNo">180</span> if (perms != null) {<a name="line.180"></a>
-<span class="sourceLineNo">181</span> if (Bytes.equals(table.getName(), AccessControlLists.ACL_GLOBAL_NAME)) {<a name="line.181"></a>
-<span class="sourceLineNo">182</span> updateGlobalCache(perms);<a name="line.182"></a>
-<span class="sourceLineNo">183</span> } else {<a name="line.183"></a>
-<span class="sourceLineNo">184</span> updateTableCache(table, perms);<a name="line.184"></a>
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-<span class="sourceLineNo">187</span> } else {<a name="line.187"></a>
-<span class="sourceLineNo">188</span> LOG.debug("Skipping permission cache refresh because writable data is empty");<a name="line.188"></a>
-<span class="sourceLineNo">189</span> }<a name="line.189"></a>
-<span class="sourceLineNo">190</span> }<a name="line.190"></a>
-<span class="sourceLineNo">191</span><a name="line.191"></a>
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-<span class="sourceLineNo">193</span> if (data != null && data.length > 0) {<a name="line.193"></a>
-<span class="sourceLineNo">194</span> ListMultimap<String,TablePermission> perms;<a name="line.194"></a>
-<span class="sourceLineNo">195</span> try {<a name="line.195"></a>
-<span class="sourceLineNo">196</span> perms = AccessControlLists.readPermissions(data, conf);<a name="line.196"></a>
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-<span class="sourceLineNo">198</span> throw new IOException(e);<a name="line.198"></a>
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-<span class="sourceLineNo">201</span> updateNsCache(namespace, perms);<a name="line.201"></a>
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-<span class="sourceLineNo">204</span> LOG.debug("Skipping permission cache refresh because writable data is empty");<a name="line.204"></a>
-<span class="sourceLineNo">205</span> }<a name="line.205"></a>
-<span class="sourceLineNo">206</span> }<a name="line.206"></a>
-<span class="sourceLineNo">207</span><a name="line.207"></a>
-<span class="sourceLineNo">208</span> /**<a name="line.208"></a>
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-<span class="sourceLineNo">214</span> PermissionCache<Permission> newCache = null;<a name="line.214"></a>
-<span class="sourceLineNo">215</span> try {<a name="line.215"></a>
-<span class="sourceLineNo">216</span> newCache = initGlobal(conf);<a name="line.216"></a>
-<span class="sourceLineNo">217</span> for (Map.Entry<String,TablePermission> entry : userPerms.entries()) {<a name="line.217"></a>
-<span class="sourceLineNo">218</span> if (AuthUtil.isGroupPrincipal(entry.getKey())) {<a name="line.218"></a>
-<span class="sourceLineNo">219</span> newCache.putGroup(AuthUtil.getGroupName(entry.getKey()),<a name="line.219"></a>
-<span class="sourceLineNo">220</span> new Permission(entry.getValue().getActions()));<a name="line.220"></a>
-<span class="sourceLineNo">221</span> } else {<a name="line.221"></a>
-<span class="sourceLineNo">222</span> newCache.putUser(entry.getKey(), new Permission(entry.getValue().getActions()));<a name="line.222"></a>
-<span class="sourceLineNo">223</span> }<a name="line.223"></a>
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-<span class="sourceLineNo">225</span> globalCache = newCache;<a name="line.225"></a>
-<span class="sourceLineNo">226</span> mtime.incrementAndGet();<a name="line.226"></a>
-<span class="sourceLineNo">227</span> } catch (IOException e) {<a name="line.227"></a>
-<span class="sourceLineNo">228</span> // Never happens<a name="line.228"></a>
-<span class="sourceLineNo">229</span> LOG.error("Error occurred while updating the global cache", e);<a name="line.229"></a>
-<span class="sourceLineNo">230</span> }<a name="line.230"></a>
-<span class="sourceLineNo">231</span> }<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> * Updates the internal permissions cache for a single table, splitting<a name="line.234"></a>
-<span class="sourceLineNo">235</span> * the permissions listed into separate caches for users and groups to optimize<a name="line.235"></a>
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-<span class="sourceLineNo">742</span> /** Returns a TableAuthManager from the cache. If not cached, constructs a new one. Returned<a name="line.742"></a>
-<span class="sourceLineNo">743</span> * instance should be released back by calling {@link #release(TableAuthManager)}. */<a name="line.743"></a>
-<span class="sourceLineNo">744</span> public synchronized static TableAuthManager getOrCreate(<a name="line.744"></a>
-<span class="sourceLineNo">745</span> ZKWatcher watcher, Configuration conf) throws IOException {<a name="line.745"></a>
-<span class="sourceLineNo">746</span> TableAuthManager instance = managerMap.get(watcher);<a name="line.746"></a>
-<span class="sourceLineNo">747</span> if (instance == null) {<a name="line.747"></a>
-<span class="sourceLineNo">748</span> instance = new TableAuthManager(watcher, conf);<a name="line.748"></a>
-<span class="sourceLineNo">749</span> managerMap.put(watcher, instance);<a name="line.749"></a>
-<span class="sourceLineNo">750</span> }<a name="line.750"></a>
-<span class="sourceLineNo">751</span> int ref = refCount.get(instance) == null ? 0 : refCount.get(instance).intValue();<a name="line.751"></a>
-<span class="sourceLineNo">752</span> refCount.put(instance, ref + 1);<a name="line.752"></a>
-<span class="sourceLineNo">753</span> return instance;<a name="line.753"></a>
-<span class="sourceLineNo">754</span> }<a name="line.754"></a>
-<span class="sourceLineNo">755</span><a name="line.755"></a>
-<span class="sourceLineNo">756</span> @VisibleForTesting<a name="line.756"></a>
-<span class="sourceLineNo">757</span> public static int getTotalRefCount() {<a name="line.757"></a>
-<span class="sourceLineNo">758</span> int total = 0;<a name="line.758"></a>
-<span class="sourceLineNo">759</span> for (int count : refCount.values()) {<a name="line.759"></a>
-<span class="sourceLineNo">760</span> total += count;<a name="line.760"></a>
-<span class="sourceLineNo">761</span> }<a name="line.761"></a>
-<span class="sourceLineNo">762</span> return total;<a name="line.762"></a>
-<span class="sourceLineNo">763</span> }<a name="line.763"></a>
-<span class="sourceLineNo">764</span><a name="line.764"></a>
-<span class="sourceLineNo">765</span> /**<a name="line.765"></a>
-<span class="sourceLineNo">766</span> * Releases the resources for the given TableAuthManager if the reference count is down to 0.<a name="line.766"></a>
-<span class="sourceLineNo">767</span> * @param instance TableAuthManager to be released<a name="line.767"></a>
-<span class="sourceLineNo">768</span> */<a name="line.768"></a>
-<span class="sourceLineNo">769</span> public synchronized static void release(TableAuthManager instance) {<a name="line.769"></a>
-<span class="sourceLineNo">770</span> if (refCount.get(instance) == null || refCount.get(instance) < 1) {<a name="line.770"></a>
-<span class="sourceLineNo">771</span> String msg = "Something wrong with the TableAuthManager reference counting: " + instance<a name="line.771"></a>
-<span class="sourceLineNo">772</span> + " whose count is " + refCount.get(instance);<a name="line.772"></a>
-<span class="sourceLineNo">773</span> LOG.error(HBaseMarkers.FATAL, msg);<a name="line.773"></a>
-<span class="sourceLineNo">774</span> instance.close();<a name="line.774"></a>
-<span class="sourceLineNo">775</span> managerMap.remove(instance.getZKPermissionWatcher().getWatcher());<a name="line.775"></a>
-<span class="sourceLineNo">776</span> instance.getZKPermissionWatcher().getWatcher().abort(msg, null);<a name="line.776"></a>
-<span class="sourceLineNo">777</span> } else {<a name="line.777"></a>
-<span class="sourceLineNo">778</span> int ref = refCount.get(instance);<a name="line.778"></a>
-<span class="sourceLineNo">779</span> refCount.put(instance, ref-1);<a name="line.779"></a>
-<span class="sourceLineNo">780</span> if (ref-1 == 0) {<a name="line.780"></a>
-<span class="sourceLineNo">781</span> instance.close();<a name="line.781"></a>
-<span class="sourceLineNo">782</span> managerMap.remove(instance.getZKPermissionWatcher().getWatcher());<a name="line.782"></a>
-<span class="sourceLineNo">783</span> refCount.remove(instance);<a name="line.783"></a>
-<span class="sourceLineNo">784</span> }<a name="line.784"></a>
-<span class="sourceLineNo">785</span> }<a name="line.785"></a>
-<span class="sourceLineNo">786</span> }<a name="line.786"></a>
-<span class="sourceLineNo">787</span>}<a name="line.787"></a>
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