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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>package org.apache.hadoop.hbase.master;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import edu.umd.cs.findbugs.annotations.NonNull;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import edu.umd.cs.findbugs.annotations.Nullable;<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.HashMap;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Map;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Set;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.concurrent.ConcurrentMap;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.concurrent.locks.ReadWriteLock;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.CatalogFamilyFormat;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.ClientMetaTableAccessor;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.TableDescriptors;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.TableName;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Result;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.exceptions.IllegalArgumentIOException;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.IdReadWriteLock;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.IdReadWriteLockWithObjectPool;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.ZKDataMigrator;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.zookeeper.ZNodePaths;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.zookeeper.KeeperException;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.slf4j.Logger;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.slf4j.LoggerFactory;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span><a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<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> * This is a helper class used to manage table states. This class uses hbase:meta as its store for<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * table state so hbase:meta must be online before {@link #start()} is called.<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> */<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>// TODO: Make this a guava Service<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>@InterfaceAudience.Private<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>public class TableStateManager {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private static final Logger LOG = LoggerFactory.getLogger(TableStateManager.class);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> /**<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * Set this key to false in Configuration to disable migrating table state from zookeeper so<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * hbase:meta table.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> private static final String MIGRATE_TABLE_STATE_FROM_ZK_KEY =<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> "hbase.migrate.table.state.from.zookeeper";<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private final IdReadWriteLock<TableName> tnLock = new IdReadWriteLockWithObjectPool<>();<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> protected final MasterServices master;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private final ConcurrentMap<TableName, TableState.State> tableName2State =<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> new ConcurrentHashMap<>();<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> TableStateManager(MasterServices master) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> this.master = master;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<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> * Set table state to provided. Caller should lock table on write.<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * @param tableName table to change state for<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * @param newState new state<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> */<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> public void setTableState(TableName tableName, TableState.State newState) throws IOException {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> ReadWriteLock lock = tnLock.getLock(tableName);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> lock.writeLock().lock();<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> try {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> updateMetaState(tableName, newState);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> } finally {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> lock.writeLock().unlock();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> public boolean isTableState(TableName tableName, TableState.State... states) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> try {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> TableState tableState = getTableState(tableName);<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> return tableState.isInStates(states);<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> } catch (IOException e) {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> LOG.error("Unable to get table " + tableName + " state", e);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> // XXX: is it safe to just return false here?<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> return false;<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> }<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> public void setDeletedTable(TableName tableName) throws IOException {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> if (tableName.equals(TableName.META_TABLE_NAME)) {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> // Can't delete the hbase:meta table.<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> return;<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> ReadWriteLock lock = tnLock.getLock(tableName);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> lock.writeLock().lock();<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> try {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> MetaTableAccessor.deleteTableState(master.getConnection(), tableName);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> metaStateDeleted(tableName);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> } finally {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> tableName2State.remove(tableName);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> lock.writeLock().unlock();<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> }<a name="line.118"></a> |
| <span class="sourceLineNo">119</span><a name="line.119"></a> |
| <span class="sourceLineNo">120</span> public boolean isTablePresent(TableName tableName) throws IOException {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> ReadWriteLock lock = tnLock.getLock(tableName);<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> lock.readLock().lock();<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> try {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> return readMetaState(tableName) != null;<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> } finally {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> lock.readLock().unlock();<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<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> * Return all tables in given states.<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> * @param states filter by states<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * @return tables in given states<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> */<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> Set<TableName> getTablesInStates(TableState.State... states) throws IOException {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> // Only be called in region normalizer, will not use cache.<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> final Set<TableName> rv = Sets.newHashSet();<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> MetaTableAccessor.fullScanTables(master.getConnection(), new ClientMetaTableAccessor.Visitor() {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> @Override<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> public boolean visit(Result r) throws IOException {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> TableState tableState = CatalogFamilyFormat.getTableState(r);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> if (tableState != null && tableState.inStates(states)) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> rv.add(tableState.getTableName());<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> }<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> return true;<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> });<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> return rv;<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> @NonNull<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> public TableState getTableState(TableName tableName) throws IOException {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> ReadWriteLock lock = tnLock.getLock(tableName);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> lock.readLock().lock();<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> try {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> TableState currentState = readMetaState(tableName);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> if (currentState == null) {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> throw new TableNotFoundException("No state found for " + tableName);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> return currentState;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> } finally {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> lock.readLock().unlock();<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span><a name="line.165"></a> |
| <span class="sourceLineNo">166</span> private void updateMetaState(TableName tableName, TableState.State newState) throws IOException {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> if (tableName.equals(TableName.META_TABLE_NAME)) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (TableState.State.DISABLING.equals(newState) ||<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> TableState.State.DISABLED.equals(newState)) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> throw new IllegalArgumentIOException("Cannot disable meta table; " + newState);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> // Otherwise, just return; no need to set ENABLED on meta -- it is always ENABLED.<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> return;<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> }<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> boolean succ = false;<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> try {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> MetaTableAccessor.updateTableState(master.getConnection(), tableName, newState);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> tableName2State.put(tableName, newState);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> succ = true;<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> } finally {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> if (!succ) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> this.tableName2State.remove(tableName);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> metaStateUpdated(tableName, newState);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<a name="line.186"></a> |
| <span class="sourceLineNo">187</span><a name="line.187"></a> |
| <span class="sourceLineNo">188</span> protected void metaStateUpdated(TableName tableName, TableState.State newState)<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> throws IOException {<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> |
| <span class="sourceLineNo">192</span> protected void metaStateDeleted(TableName tableName) throws IOException {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> }<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> @Nullable<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> private TableState readMetaState(TableName tableName) throws IOException {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> TableState.State state = tableName2State.get(tableName);<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> if (state != null) {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> return new TableState(tableName, state);<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> }<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> TableState tableState = MetaTableAccessor.getTableState(master.getConnection(), tableName);<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> if (tableState != null) {<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> tableName2State.putIfAbsent(tableName, tableState.getState());<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> }<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> return tableState;<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> public void start() throws IOException {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> migrateZooKeeper();<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> fixTableStates(master.getTableDescriptors(), master.getConnection());<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> }<a name="line.211"></a> |
| <span class="sourceLineNo">212</span><a name="line.212"></a> |
| <span class="sourceLineNo">213</span> private void fixTableStates(TableDescriptors tableDescriptors, Connection connection)<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> throws IOException {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> Map<String, TableState> states = new HashMap<>();<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> // NOTE: Full hbase:meta table scan!<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> MetaTableAccessor.fullScanTables(connection, new ClientMetaTableAccessor.Visitor() {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> @Override<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> public boolean visit(Result r) throws IOException {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> TableState state = CatalogFamilyFormat.getTableState(r);<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> states.put(state.getTableName().getNameAsString(), state);<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> return true;<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> }<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> });<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> for (TableDescriptor tableDesc : tableDescriptors.getAll().values()) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> TableName tableName = tableDesc.getTableName();<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> if (TableName.isMetaTableName(tableName)) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> // This table is always enabled. No fixup needed. No entry in hbase:meta needed.<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> // Call through to fixTableState though in case a super class wants to do something.<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> fixTableState(new TableState(tableName, TableState.State.ENABLED));<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> continue;<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> TableState tableState = states.get(tableName.getNameAsString());<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> if (tableState == null) {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> LOG.warn(tableName + " has no table state in hbase:meta, assuming ENABLED");<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> MetaTableAccessor.updateTableState(connection, tableName, TableState.State.ENABLED);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> fixTableState(new TableState(tableName, TableState.State.ENABLED));<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> tableName2State.put(tableName, TableState.State.ENABLED);<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> } else {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> fixTableState(tableState);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> tableName2State.put(tableName, tableState.getState());<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> }<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> }<a name="line.244"></a> |
| <span class="sourceLineNo">245</span><a name="line.245"></a> |
| <span class="sourceLineNo">246</span> /**<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> * For subclasses in case they want to do fixup post hbase:meta.<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> */<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> protected void fixTableState(TableState tableState) throws IOException {<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> * This code is for case where a hbase2 Master is starting for the first time. ZooKeeper is where<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> * we used to keep table state. On first startup, read zookeeper and update hbase:meta with the<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * table states found in zookeeper. This is tricky as we'll do this check every time we startup<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> * until mirroring is disabled. See the {@link #MIGRATE_TABLE_STATE_FROM_ZK_KEY} flag. Original<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * form of this migration came in with HBASE-13032. It deleted all znodes when done. We can't do<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> * that if we want to support hbase-1.x clients who need to be able to read table state out of zk.<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> * See {@link MirroringTableStateManager}.<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> * @deprecated Since 2.0.0. Remove in hbase-3.0.0.<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> */<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> @Deprecated<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> private void migrateZooKeeper() throws IOException {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> if (!this.master.getConfiguration().getBoolean(MIGRATE_TABLE_STATE_FROM_ZK_KEY, true)) {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> return;<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> }<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> try {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> for (Map.Entry<TableName, TableState.State> entry : ZKDataMigrator<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> .queryForTableStates(this.master.getZooKeeper()).entrySet()) {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> if (this.master.getTableDescriptors().get(entry.getKey()) == null) {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> deleteZooKeeper(entry.getKey());<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> LOG.info("Purged table state entry from zookeepr for table not in hbase:meta: " +<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> entry.getKey());<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> continue;<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> TableState ts = null;<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> try {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> ts = getTableState(entry.getKey());<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> } catch (TableNotFoundException e) {<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> // This can happen; table exists but no TableState.<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> if (ts == null) {<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> TableState.State zkstate = entry.getValue();<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> // Only migrate if it is an enable or disabled table. If in-between -- ENABLING or<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> // DISABLING then we have a problem; we are starting up an hbase-2 on a cluster with<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> // RIT. It is going to be rough!<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> if (zkstate.equals(TableState.State.ENABLED) ||<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> zkstate.equals(TableState.State.DISABLED)) {<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> LOG.info("Migrating table state from zookeeper to hbase:meta; tableName=" +<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> entry.getKey() + ", state=" + entry.getValue());<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> updateMetaState(entry.getKey(), entry.getValue());<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> } else {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> LOG.warn("Table={} has no state and zookeeper state is in-between={} (neither " +<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> "ENABLED or DISABLED); NOT MIGRATING table state", entry.getKey(), zkstate);<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> }<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> }<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> // What if the table states disagree? Defer to the hbase:meta setting rather than have the<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> // hbase-1.x support prevail.<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> } catch (KeeperException | InterruptedException e) {<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> LOG.warn("Failed reading table state from zookeeper", e);<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> }<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> }<a name="line.303"></a> |
| <span class="sourceLineNo">304</span><a name="line.304"></a> |
| <span class="sourceLineNo">305</span> /**<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> * Utility method that knows how to delete the old hbase-1.x table state znode. Used also by the<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> * Mirroring subclass.<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> * @deprecated Since 2.0.0. To be removed in hbase-3.0.0.<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> */<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> @Deprecated<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> protected void deleteZooKeeper(TableName tableName) {<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> try {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> // Delete from ZooKeeper<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> String znode = ZNodePaths.joinZNode(this.master.getZooKeeper().getZNodePaths().tableZNode,<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> tableName.getNameAsString());<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> ZKUtil.deleteNodeFailSilent(this.master.getZooKeeper(), znode);<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> } catch (KeeperException e) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> LOG.warn("Failed deleting table state from zookeeper", e);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span>}<a name="line.321"></a> |
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| </div> |
| </body> |
| </html> |
