http://git-wip-us.apache.org/repos/asf/hbase-site/blob/50917b1d/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/EnableTableProcedure.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/EnableTableProcedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/EnableTableProcedure.html index 784e9ae..1f58601 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/EnableTableProcedure.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/EnableTableProcedure.html @@ -46,551 +46,548 @@ <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.38"></a> <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.39"></a> <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.executor.EventType;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.master.AssignmentManager;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.master.BulkAssigner;<a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.master.GeneralBulkAssigner;<a name="line.44"></a> -<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.master.MasterCoprocessorHost;<a name="line.45"></a> -<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.master.MasterServices;<a name="line.46"></a> -<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.master.RegionStates;<a name="line.47"></a> -<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.master.ServerManager;<a name="line.48"></a> -<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.master.TableStateManager;<a name="line.49"></a> -<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.procedure2.StateMachineProcedure;<a name="line.50"></a> -<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.51"></a> -<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.protobuf.generated.MasterProcedureProtos;<a name="line.52"></a> -<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.protobuf.generated.MasterProcedureProtos.EnableTableState;<a name="line.53"></a> -<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.54"></a> -<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.55"></a> -<span class="sourceLineNo">056</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.56"></a> -<span class="sourceLineNo">057</span><a name="line.57"></a> -<span class="sourceLineNo">058</span>@InterfaceAudience.Private<a name="line.58"></a> -<span class="sourceLineNo">059</span>public class EnableTableProcedure<a name="line.59"></a> -<span class="sourceLineNo">060</span> extends StateMachineProcedure<MasterProcedureEnv, EnableTableState><a name="line.60"></a> -<span class="sourceLineNo">061</span> implements TableProcedureInterface {<a name="line.61"></a> -<span class="sourceLineNo">062</span> private static final Log LOG = LogFactory.getLog(EnableTableProcedure.class);<a name="line.62"></a> -<span class="sourceLineNo">063</span><a name="line.63"></a> -<span class="sourceLineNo">064</span> private final AtomicBoolean aborted = new AtomicBoolean(false);<a name="line.64"></a> -<span class="sourceLineNo">065</span><a name="line.65"></a> -<span class="sourceLineNo">066</span> // This is for back compatible with 1.0 asynchronized operations.<a name="line.66"></a> -<span class="sourceLineNo">067</span> private final ProcedurePrepareLatch syncLatch;<a name="line.67"></a> -<span class="sourceLineNo">068</span><a name="line.68"></a> -<span class="sourceLineNo">069</span> private TableName tableName;<a name="line.69"></a> -<span class="sourceLineNo">070</span> private boolean skipTableStateCheck;<a name="line.70"></a> -<span class="sourceLineNo">071</span> private UserGroupInformation user;<a name="line.71"></a> -<span class="sourceLineNo">072</span><a name="line.72"></a> -<span class="sourceLineNo">073</span> private Boolean traceEnabled = null;<a name="line.73"></a> -<span class="sourceLineNo">074</span><a name="line.74"></a> -<span class="sourceLineNo">075</span> public EnableTableProcedure() {<a name="line.75"></a> -<span class="sourceLineNo">076</span> syncLatch = null;<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> /**<a name="line.79"></a> -<span class="sourceLineNo">080</span> * Constructor<a name="line.80"></a> -<span class="sourceLineNo">081</span> * @param env MasterProcedureEnv<a name="line.81"></a> -<span class="sourceLineNo">082</span> * @param tableName the table to operate on<a name="line.82"></a> -<span class="sourceLineNo">083</span> * @param skipTableStateCheck whether to check table state<a name="line.83"></a> -<span class="sourceLineNo">084</span> * @throws IOException<a name="line.84"></a> -<span class="sourceLineNo">085</span> */<a name="line.85"></a> -<span class="sourceLineNo">086</span> public EnableTableProcedure(<a name="line.86"></a> -<span class="sourceLineNo">087</span> final MasterProcedureEnv env,<a name="line.87"></a> -<span class="sourceLineNo">088</span> final TableName tableName,<a name="line.88"></a> -<span class="sourceLineNo">089</span> final boolean skipTableStateCheck) throws IOException {<a name="line.89"></a> -<span class="sourceLineNo">090</span> this(env, tableName, skipTableStateCheck, null);<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> /**<a name="line.93"></a> -<span class="sourceLineNo">094</span> * Constructor<a name="line.94"></a> -<span class="sourceLineNo">095</span> * @param env MasterProcedureEnv<a name="line.95"></a> -<span class="sourceLineNo">096</span> * @param tableName the table to operate on<a name="line.96"></a> -<span class="sourceLineNo">097</span> * @param skipTableStateCheck whether to check table state<a name="line.97"></a> -<span class="sourceLineNo">098</span> * @throws IOException<a name="line.98"></a> -<span class="sourceLineNo">099</span> */<a name="line.99"></a> -<span class="sourceLineNo">100</span> public EnableTableProcedure(<a name="line.100"></a> -<span class="sourceLineNo">101</span> final MasterProcedureEnv env,<a name="line.101"></a> -<span class="sourceLineNo">102</span> final TableName tableName,<a name="line.102"></a> -<span class="sourceLineNo">103</span> final boolean skipTableStateCheck,<a name="line.103"></a> -<span class="sourceLineNo">104</span> final ProcedurePrepareLatch syncLatch) throws IOException {<a name="line.104"></a> -<span class="sourceLineNo">105</span> this.tableName = tableName;<a name="line.105"></a> -<span class="sourceLineNo">106</span> this.skipTableStateCheck = skipTableStateCheck;<a name="line.106"></a> -<span class="sourceLineNo">107</span> this.user = env.getRequestUser().getUGI();<a name="line.107"></a> -<span class="sourceLineNo">108</span> this.setOwner(this.user.getShortUserName());<a name="line.108"></a> -<span class="sourceLineNo">109</span><a name="line.109"></a> -<span class="sourceLineNo">110</span> // Compatible with 1.0: We use latch to make sure that this procedure implementation is<a name="line.110"></a> -<span class="sourceLineNo">111</span> // compatible with 1.0 asynchronized operations. We need to lock the table and check<a name="line.111"></a> -<span class="sourceLineNo">112</span> // whether the Enable operation could be performed (table exists and offline; table state<a name="line.112"></a> -<span class="sourceLineNo">113</span> // is DISABLED). Once it is done, we are good to release the latch and the client can<a name="line.113"></a> -<span class="sourceLineNo">114</span> // start asynchronously wait for the operation.<a name="line.114"></a> -<span class="sourceLineNo">115</span> //<a name="line.115"></a> -<span class="sourceLineNo">116</span> // Note: the member syncLatch could be null if we are in failover or recovery scenario.<a name="line.116"></a> -<span class="sourceLineNo">117</span> // This is ok for backward compatible, as 1.0 client would not able to peek at procedure.<a name="line.117"></a> -<span class="sourceLineNo">118</span> this.syncLatch = syncLatch;<a name="line.118"></a> -<span class="sourceLineNo">119</span> }<a name="line.119"></a> -<span class="sourceLineNo">120</span><a name="line.120"></a> -<span class="sourceLineNo">121</span> @Override<a name="line.121"></a> -<span class="sourceLineNo">122</span> protected Flow executeFromState(final MasterProcedureEnv env, final EnableTableState state)<a name="line.122"></a> -<span class="sourceLineNo">123</span> throws InterruptedException {<a name="line.123"></a> -<span class="sourceLineNo">124</span> if (isTraceEnabled()) {<a name="line.124"></a> -<span class="sourceLineNo">125</span> LOG.trace(this + " execute state=" + state);<a name="line.125"></a> -<span class="sourceLineNo">126</span> }<a name="line.126"></a> -<span class="sourceLineNo">127</span><a name="line.127"></a> -<span class="sourceLineNo">128</span> try {<a name="line.128"></a> -<span class="sourceLineNo">129</span> switch (state) {<a name="line.129"></a> -<span class="sourceLineNo">130</span> case ENABLE_TABLE_PREPARE:<a name="line.130"></a> -<span class="sourceLineNo">131</span> if (prepareEnable(env)) {<a name="line.131"></a> -<span class="sourceLineNo">132</span> setNextState(EnableTableState.ENABLE_TABLE_PRE_OPERATION);<a name="line.132"></a> -<span class="sourceLineNo">133</span> } else {<a name="line.133"></a> -<span class="sourceLineNo">134</span> assert isFailed() : "enable should have an exception here";<a name="line.134"></a> -<span class="sourceLineNo">135</span> return Flow.NO_MORE_STATE;<a name="line.135"></a> -<span class="sourceLineNo">136</span> }<a name="line.136"></a> -<span class="sourceLineNo">137</span> break;<a name="line.137"></a> -<span class="sourceLineNo">138</span> case ENABLE_TABLE_PRE_OPERATION:<a name="line.138"></a> -<span class="sourceLineNo">139</span> preEnable(env, state);<a name="line.139"></a> -<span class="sourceLineNo">140</span> setNextState(EnableTableState.ENABLE_TABLE_SET_ENABLING_TABLE_STATE);<a name="line.140"></a> -<span class="sourceLineNo">141</span> break;<a name="line.141"></a> -<span class="sourceLineNo">142</span> case ENABLE_TABLE_SET_ENABLING_TABLE_STATE:<a name="line.142"></a> -<span class="sourceLineNo">143</span> setTableStateToEnabling(env, tableName);<a name="line.143"></a> -<span class="sourceLineNo">144</span> setNextState(EnableTableState.ENABLE_TABLE_MARK_REGIONS_ONLINE);<a name="line.144"></a> -<span class="sourceLineNo">145</span> break;<a name="line.145"></a> -<span class="sourceLineNo">146</span> case ENABLE_TABLE_MARK_REGIONS_ONLINE:<a name="line.146"></a> -<span class="sourceLineNo">147</span> markRegionsOnline(env, tableName, true);<a name="line.147"></a> -<span class="sourceLineNo">148</span> setNextState(EnableTableState.ENABLE_TABLE_SET_ENABLED_TABLE_STATE);<a name="line.148"></a> -<span class="sourceLineNo">149</span> break;<a name="line.149"></a> -<span class="sourceLineNo">150</span> case ENABLE_TABLE_SET_ENABLED_TABLE_STATE:<a name="line.150"></a> -<span class="sourceLineNo">151</span> setTableStateToEnabled(env, tableName);<a name="line.151"></a> -<span class="sourceLineNo">152</span> setNextState(EnableTableState.ENABLE_TABLE_POST_OPERATION);<a name="line.152"></a> -<span class="sourceLineNo">153</span> break;<a name="line.153"></a> -<span class="sourceLineNo">154</span> case ENABLE_TABLE_POST_OPERATION:<a name="line.154"></a> -<span class="sourceLineNo">155</span> postEnable(env, state);<a name="line.155"></a> -<span class="sourceLineNo">156</span> return Flow.NO_MORE_STATE;<a name="line.156"></a> -<span class="sourceLineNo">157</span> default:<a name="line.157"></a> -<span class="sourceLineNo">158</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.158"></a> -<span class="sourceLineNo">159</span> }<a name="line.159"></a> -<span class="sourceLineNo">160</span> } catch (IOException e) {<a name="line.160"></a> -<span class="sourceLineNo">161</span> LOG.error("Error trying to enable table=" + tableName + " state=" + state, e);<a name="line.161"></a> -<span class="sourceLineNo">162</span> setFailure("master-enable-table", e);<a name="line.162"></a> -<span class="sourceLineNo">163</span> }<a name="line.163"></a> -<span class="sourceLineNo">164</span> return Flow.HAS_MORE_STATE;<a name="line.164"></a> -<span class="sourceLineNo">165</span> }<a name="line.165"></a> -<span class="sourceLineNo">166</span><a name="line.166"></a> -<span class="sourceLineNo">167</span> @Override<a name="line.167"></a> -<span class="sourceLineNo">168</span> protected void rollbackState(final MasterProcedureEnv env, final EnableTableState state)<a name="line.168"></a> -<span class="sourceLineNo">169</span> throws IOException {<a name="line.169"></a> -<span class="sourceLineNo">170</span> if (isTraceEnabled()) {<a name="line.170"></a> -<span class="sourceLineNo">171</span> LOG.trace(this + " rollback state=" + state);<a name="line.171"></a> -<span class="sourceLineNo">172</span> }<a name="line.172"></a> -<span class="sourceLineNo">173</span> try {<a name="line.173"></a> -<span class="sourceLineNo">174</span> switch (state) {<a name="line.174"></a> -<span class="sourceLineNo">175</span> case ENABLE_TABLE_POST_OPERATION:<a name="line.175"></a> -<span class="sourceLineNo">176</span> // TODO-MAYBE: call the coprocessor event to undo (eg. DisableTableProcedure.preDisable())?<a name="line.176"></a> -<span class="sourceLineNo">177</span> break;<a name="line.177"></a> -<span class="sourceLineNo">178</span> case ENABLE_TABLE_SET_ENABLED_TABLE_STATE:<a name="line.178"></a> -<span class="sourceLineNo">179</span> DisableTableProcedure.setTableStateToDisabling(env, tableName);<a name="line.179"></a> -<span class="sourceLineNo">180</span> break;<a name="line.180"></a> -<span class="sourceLineNo">181</span> case ENABLE_TABLE_MARK_REGIONS_ONLINE:<a name="line.181"></a> -<span class="sourceLineNo">182</span> markRegionsOfflineDuringRecovery(env);<a name="line.182"></a> -<span class="sourceLineNo">183</span> break;<a name="line.183"></a> -<span class="sourceLineNo">184</span> case ENABLE_TABLE_SET_ENABLING_TABLE_STATE:<a name="line.184"></a> -<span class="sourceLineNo">185</span> DisableTableProcedure.setTableStateToDisabled(env, tableName);<a name="line.185"></a> -<span class="sourceLineNo">186</span> break;<a name="line.186"></a> -<span class="sourceLineNo">187</span> case ENABLE_TABLE_PRE_OPERATION:<a name="line.187"></a> -<span class="sourceLineNo">188</span> // TODO-MAYBE: call the coprocessor event to undo (eg. DisableTableProcedure.postDisable())?<a name="line.188"></a> -<span class="sourceLineNo">189</span> break;<a name="line.189"></a> -<span class="sourceLineNo">190</span> case ENABLE_TABLE_PREPARE:<a name="line.190"></a> -<span class="sourceLineNo">191</span> // Nothing to undo for this state.<a name="line.191"></a> -<span class="sourceLineNo">192</span> // We do need to count down the latch count so that we don't stuck.<a name="line.192"></a> -<span class="sourceLineNo">193</span> ProcedurePrepareLatch.releaseLatch(syncLatch, this);<a name="line.193"></a> -<span class="sourceLineNo">194</span> break;<a name="line.194"></a> -<span class="sourceLineNo">195</span> default:<a name="line.195"></a> -<span class="sourceLineNo">196</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.196"></a> -<span class="sourceLineNo">197</span> }<a name="line.197"></a> -<span class="sourceLineNo">198</span> } catch (IOException e) {<a name="line.198"></a> -<span class="sourceLineNo">199</span> // This will be retried. Unless there is a bug in the code,<a name="line.199"></a> -<span class="sourceLineNo">200</span> // this should be just a "temporary error" (e.g. network down)<a name="line.200"></a> -<span class="sourceLineNo">201</span> LOG.warn("Failed enable table rollback attempt step=" + state + " table=" + tableName, e);<a name="line.201"></a> -<span class="sourceLineNo">202</span> throw e;<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><a name="line.205"></a> -<span class="sourceLineNo">206</span> @Override<a name="line.206"></a> -<span class="sourceLineNo">207</span> protected EnableTableState getState(final int stateId) {<a name="line.207"></a> -<span class="sourceLineNo">208</span> return EnableTableState.valueOf(stateId);<a name="line.208"></a> -<span class="sourceLineNo">209</span> }<a name="line.209"></a> -<span class="sourceLineNo">210</span><a name="line.210"></a> -<span class="sourceLineNo">211</span> @Override<a name="line.211"></a> -<span class="sourceLineNo">212</span> protected int getStateId(final EnableTableState state) {<a name="line.212"></a> -<span class="sourceLineNo">213</span> return state.getNumber();<a name="line.213"></a> -<span class="sourceLineNo">214</span> }<a name="line.214"></a> -<span class="sourceLineNo">215</span><a name="line.215"></a> -<span class="sourceLineNo">216</span> @Override<a name="line.216"></a> -<span class="sourceLineNo">217</span> protected EnableTableState getInitialState() {<a name="line.217"></a> -<span class="sourceLineNo">218</span> return EnableTableState.ENABLE_TABLE_PREPARE;<a name="line.218"></a> -<span class="sourceLineNo">219</span> }<a name="line.219"></a> -<span class="sourceLineNo">220</span><a name="line.220"></a> -<span class="sourceLineNo">221</span> @Override<a name="line.221"></a> -<span class="sourceLineNo">222</span> protected void setNextState(final EnableTableState state) {<a name="line.222"></a> -<span class="sourceLineNo">223</span> if (aborted.get()) {<a name="line.223"></a> -<span class="sourceLineNo">224</span> setAbortFailure("Enable-table", "abort requested");<a name="line.224"></a> -<span class="sourceLineNo">225</span> } else {<a name="line.225"></a> -<span class="sourceLineNo">226</span> super.setNextState(state);<a name="line.226"></a> -<span class="sourceLineNo">227</span> }<a name="line.227"></a> -<span class="sourceLineNo">228</span> }<a name="line.228"></a> -<span class="sourceLineNo">229</span><a name="line.229"></a> -<span class="sourceLineNo">230</span> @Override<a name="line.230"></a> -<span class="sourceLineNo">231</span> public boolean abort(final MasterProcedureEnv env) {<a name="line.231"></a> -<span class="sourceLineNo">232</span> aborted.set(true);<a name="line.232"></a> -<span class="sourceLineNo">233</span> return true;<a name="line.233"></a> -<span class="sourceLineNo">234</span> }<a name="line.234"></a> -<span class="sourceLineNo">235</span><a name="line.235"></a> -<span class="sourceLineNo">236</span> @Override<a name="line.236"></a> -<span class="sourceLineNo">237</span> protected boolean acquireLock(final MasterProcedureEnv env) {<a name="line.237"></a> -<span class="sourceLineNo">238</span> if (!env.isInitialized()) return false;<a name="line.238"></a> -<span class="sourceLineNo">239</span> return env.getProcedureQueue().tryAcquireTableExclusiveLock(<a name="line.239"></a> -<span class="sourceLineNo">240</span> tableName,<a name="line.240"></a> -<span class="sourceLineNo">241</span> EventType.C_M_ENABLE_TABLE.toString());<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> @Override<a name="line.244"></a> -<span class="sourceLineNo">245</span> protected void releaseLock(final MasterProcedureEnv env) {<a name="line.245"></a> -<span class="sourceLineNo">246</span> env.getProcedureQueue().releaseTableExclusiveLock(tableName);<a name="line.246"></a> -<span class="sourceLineNo">247</span> }<a name="line.247"></a> -<span class="sourceLineNo">248</span><a name="line.248"></a> -<span class="sourceLineNo">249</span> @Override<a name="line.249"></a> -<span class="sourceLineNo">250</span> public void serializeStateData(final OutputStream stream) throws IOException {<a name="line.250"></a> -<span class="sourceLineNo">251</span> super.serializeStateData(stream);<a name="line.251"></a> -<span class="sourceLineNo">252</span><a name="line.252"></a> -<span class="sourceLineNo">253</span> MasterProcedureProtos.EnableTableStateData.Builder enableTableMsg =<a name="line.253"></a> -<span class="sourceLineNo">254</span> MasterProcedureProtos.EnableTableStateData.newBuilder()<a name="line.254"></a> -<span class="sourceLineNo">255</span> .setUserInfo(MasterProcedureUtil.toProtoUserInfo(user))<a name="line.255"></a> -<span class="sourceLineNo">256</span> .setTableName(ProtobufUtil.toProtoTableName(tableName))<a name="line.256"></a> -<span class="sourceLineNo">257</span> .setSkipTableStateCheck(skipTableStateCheck);<a name="line.257"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.master.AssignmentManager;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.master.BulkAssigner;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.master.GeneralBulkAssigner;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.master.MasterCoprocessorHost;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.master.MasterServices;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.master.RegionStates;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.master.ServerManager;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.master.TableStateManager;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.procedure2.StateMachineProcedure;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.protobuf.generated.MasterProcedureProtos;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.protobuf.generated.MasterProcedureProtos.EnableTableState;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.54"></a> +<span class="sourceLineNo">055</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.55"></a> +<span class="sourceLineNo">056</span><a name="line.56"></a> +<span class="sourceLineNo">057</span>@InterfaceAudience.Private<a name="line.57"></a> +<span class="sourceLineNo">058</span>public class EnableTableProcedure<a name="line.58"></a> +<span class="sourceLineNo">059</span> extends StateMachineProcedure<MasterProcedureEnv, EnableTableState><a name="line.59"></a> +<span class="sourceLineNo">060</span> implements TableProcedureInterface {<a name="line.60"></a> +<span class="sourceLineNo">061</span> private static final Log LOG = LogFactory.getLog(EnableTableProcedure.class);<a name="line.61"></a> +<span class="sourceLineNo">062</span><a name="line.62"></a> +<span class="sourceLineNo">063</span> private final AtomicBoolean aborted = new AtomicBoolean(false);<a name="line.63"></a> +<span class="sourceLineNo">064</span><a name="line.64"></a> +<span class="sourceLineNo">065</span> // This is for back compatible with 1.0 asynchronized operations.<a name="line.65"></a> +<span class="sourceLineNo">066</span> private final ProcedurePrepareLatch syncLatch;<a name="line.66"></a> +<span class="sourceLineNo">067</span><a name="line.67"></a> +<span class="sourceLineNo">068</span> private TableName tableName;<a name="line.68"></a> +<span class="sourceLineNo">069</span> private boolean skipTableStateCheck;<a name="line.69"></a> +<span class="sourceLineNo">070</span> private UserGroupInformation user;<a name="line.70"></a> +<span class="sourceLineNo">071</span><a name="line.71"></a> +<span class="sourceLineNo">072</span> private Boolean traceEnabled = null;<a name="line.72"></a> +<span class="sourceLineNo">073</span><a name="line.73"></a> +<span class="sourceLineNo">074</span> public EnableTableProcedure() {<a name="line.74"></a> +<span class="sourceLineNo">075</span> syncLatch = null;<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> * Constructor<a name="line.79"></a> +<span class="sourceLineNo">080</span> * @param env MasterProcedureEnv<a name="line.80"></a> +<span class="sourceLineNo">081</span> * @param tableName the table to operate on<a name="line.81"></a> +<span class="sourceLineNo">082</span> * @param skipTableStateCheck whether to check table state<a name="line.82"></a> +<span class="sourceLineNo">083</span> * @throws IOException<a name="line.83"></a> +<span class="sourceLineNo">084</span> */<a name="line.84"></a> +<span class="sourceLineNo">085</span> public EnableTableProcedure(<a name="line.85"></a> +<span class="sourceLineNo">086</span> final MasterProcedureEnv env,<a name="line.86"></a> +<span class="sourceLineNo">087</span> final TableName tableName,<a name="line.87"></a> +<span class="sourceLineNo">088</span> final boolean skipTableStateCheck) throws IOException {<a name="line.88"></a> +<span class="sourceLineNo">089</span> this(env, tableName, skipTableStateCheck, null);<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> * Constructor<a name="line.93"></a> +<span class="sourceLineNo">094</span> * @param env MasterProcedureEnv<a name="line.94"></a> +<span class="sourceLineNo">095</span> * @param tableName the table to operate on<a name="line.95"></a> +<span class="sourceLineNo">096</span> * @param skipTableStateCheck whether to check table state<a name="line.96"></a> +<span class="sourceLineNo">097</span> * @throws IOException<a name="line.97"></a> +<span class="sourceLineNo">098</span> */<a name="line.98"></a> +<span class="sourceLineNo">099</span> public EnableTableProcedure(<a name="line.99"></a> +<span class="sourceLineNo">100</span> final MasterProcedureEnv env,<a name="line.100"></a> +<span class="sourceLineNo">101</span> final TableName tableName,<a name="line.101"></a> +<span class="sourceLineNo">102</span> final boolean skipTableStateCheck,<a name="line.102"></a> +<span class="sourceLineNo">103</span> final ProcedurePrepareLatch syncLatch) throws IOException {<a name="line.103"></a> +<span class="sourceLineNo">104</span> this.tableName = tableName;<a name="line.104"></a> +<span class="sourceLineNo">105</span> this.skipTableStateCheck = skipTableStateCheck;<a name="line.105"></a> +<span class="sourceLineNo">106</span> this.user = env.getRequestUser().getUGI();<a name="line.106"></a> +<span class="sourceLineNo">107</span> this.setOwner(this.user.getShortUserName());<a name="line.107"></a> +<span class="sourceLineNo">108</span><a name="line.108"></a> +<span class="sourceLineNo">109</span> // Compatible with 1.0: We use latch to make sure that this procedure implementation is<a name="line.109"></a> +<span class="sourceLineNo">110</span> // compatible with 1.0 asynchronized operations. We need to lock the table and check<a name="line.110"></a> +<span class="sourceLineNo">111</span> // whether the Enable operation could be performed (table exists and offline; table state<a name="line.111"></a> +<span class="sourceLineNo">112</span> // is DISABLED). Once it is done, we are good to release the latch and the client can<a name="line.112"></a> +<span class="sourceLineNo">113</span> // start asynchronously wait for the operation.<a name="line.113"></a> +<span class="sourceLineNo">114</span> //<a name="line.114"></a> +<span class="sourceLineNo">115</span> // Note: the member syncLatch could be null if we are in failover or recovery scenario.<a name="line.115"></a> +<span class="sourceLineNo">116</span> // This is ok for backward compatible, as 1.0 client would not able to peek at procedure.<a name="line.116"></a> +<span class="sourceLineNo">117</span> this.syncLatch = syncLatch;<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> @Override<a name="line.120"></a> +<span class="sourceLineNo">121</span> protected Flow executeFromState(final MasterProcedureEnv env, final EnableTableState state)<a name="line.121"></a> +<span class="sourceLineNo">122</span> throws InterruptedException {<a name="line.122"></a> +<span class="sourceLineNo">123</span> if (isTraceEnabled()) {<a name="line.123"></a> +<span class="sourceLineNo">124</span> LOG.trace(this + " execute state=" + state);<a name="line.124"></a> +<span class="sourceLineNo">125</span> }<a name="line.125"></a> +<span class="sourceLineNo">126</span><a name="line.126"></a> +<span class="sourceLineNo">127</span> try {<a name="line.127"></a> +<span class="sourceLineNo">128</span> switch (state) {<a name="line.128"></a> +<span class="sourceLineNo">129</span> case ENABLE_TABLE_PREPARE:<a name="line.129"></a> +<span class="sourceLineNo">130</span> if (prepareEnable(env)) {<a name="line.130"></a> +<span class="sourceLineNo">131</span> setNextState(EnableTableState.ENABLE_TABLE_PRE_OPERATION);<a name="line.131"></a> +<span class="sourceLineNo">132</span> } else {<a name="line.132"></a> +<span class="sourceLineNo">133</span> assert isFailed() : "enable should have an exception here";<a name="line.133"></a> +<span class="sourceLineNo">134</span> return Flow.NO_MORE_STATE;<a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span> break;<a name="line.136"></a> +<span class="sourceLineNo">137</span> case ENABLE_TABLE_PRE_OPERATION:<a name="line.137"></a> +<span class="sourceLineNo">138</span> preEnable(env, state);<a name="line.138"></a> +<span class="sourceLineNo">139</span> setNextState(EnableTableState.ENABLE_TABLE_SET_ENABLING_TABLE_STATE);<a name="line.139"></a> +<span class="sourceLineNo">140</span> break;<a name="line.140"></a> +<span class="sourceLineNo">141</span> case ENABLE_TABLE_SET_ENABLING_TABLE_STATE:<a name="line.141"></a> +<span class="sourceLineNo">142</span> setTableStateToEnabling(env, tableName);<a name="line.142"></a> +<span class="sourceLineNo">143</span> setNextState(EnableTableState.ENABLE_TABLE_MARK_REGIONS_ONLINE);<a name="line.143"></a> +<span class="sourceLineNo">144</span> break;<a name="line.144"></a> +<span class="sourceLineNo">145</span> case ENABLE_TABLE_MARK_REGIONS_ONLINE:<a name="line.145"></a> +<span class="sourceLineNo">146</span> markRegionsOnline(env, tableName, true);<a name="line.146"></a> +<span class="sourceLineNo">147</span> setNextState(EnableTableState.ENABLE_TABLE_SET_ENABLED_TABLE_STATE);<a name="line.147"></a> +<span class="sourceLineNo">148</span> break;<a name="line.148"></a> +<span class="sourceLineNo">149</span> case ENABLE_TABLE_SET_ENABLED_TABLE_STATE:<a name="line.149"></a> +<span class="sourceLineNo">150</span> setTableStateToEnabled(env, tableName);<a name="line.150"></a> +<span class="sourceLineNo">151</span> setNextState(EnableTableState.ENABLE_TABLE_POST_OPERATION);<a name="line.151"></a> +<span class="sourceLineNo">152</span> break;<a name="line.152"></a> +<span class="sourceLineNo">153</span> case ENABLE_TABLE_POST_OPERATION:<a name="line.153"></a> +<span class="sourceLineNo">154</span> postEnable(env, state);<a name="line.154"></a> +<span class="sourceLineNo">155</span> return Flow.NO_MORE_STATE;<a name="line.155"></a> +<span class="sourceLineNo">156</span> default:<a name="line.156"></a> +<span class="sourceLineNo">157</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.157"></a> +<span class="sourceLineNo">158</span> }<a name="line.158"></a> +<span class="sourceLineNo">159</span> } catch (IOException e) {<a name="line.159"></a> +<span class="sourceLineNo">160</span> LOG.error("Error trying to enable table=" + tableName + " state=" + state, e);<a name="line.160"></a> +<span class="sourceLineNo">161</span> setFailure("master-enable-table", e);<a name="line.161"></a> +<span class="sourceLineNo">162</span> }<a name="line.162"></a> +<span class="sourceLineNo">163</span> return Flow.HAS_MORE_STATE;<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> @Override<a name="line.166"></a> +<span class="sourceLineNo">167</span> protected void rollbackState(final MasterProcedureEnv env, final EnableTableState state)<a name="line.167"></a> +<span class="sourceLineNo">168</span> throws IOException {<a name="line.168"></a> +<span class="sourceLineNo">169</span> if (isTraceEnabled()) {<a name="line.169"></a> +<span class="sourceLineNo">170</span> LOG.trace(this + " rollback state=" + state);<a name="line.170"></a> +<span class="sourceLineNo">171</span> }<a name="line.171"></a> +<span class="sourceLineNo">172</span> try {<a name="line.172"></a> +<span class="sourceLineNo">173</span> switch (state) {<a name="line.173"></a> +<span class="sourceLineNo">174</span> case ENABLE_TABLE_POST_OPERATION:<a name="line.174"></a> +<span class="sourceLineNo">175</span> // TODO-MAYBE: call the coprocessor event to undo (eg. DisableTableProcedure.preDisable())?<a name="line.175"></a> +<span class="sourceLineNo">176</span> break;<a name="line.176"></a> +<span class="sourceLineNo">177</span> case ENABLE_TABLE_SET_ENABLED_TABLE_STATE:<a name="line.177"></a> +<span class="sourceLineNo">178</span> DisableTableProcedure.setTableStateToDisabling(env, tableName);<a name="line.178"></a> +<span class="sourceLineNo">179</span> break;<a name="line.179"></a> +<span class="sourceLineNo">180</span> case ENABLE_TABLE_MARK_REGIONS_ONLINE:<a name="line.180"></a> +<span class="sourceLineNo">181</span> markRegionsOfflineDuringRecovery(env);<a name="line.181"></a> +<span class="sourceLineNo">182</span> break;<a name="line.182"></a> +<span class="sourceLineNo">183</span> case ENABLE_TABLE_SET_ENABLING_TABLE_STATE:<a name="line.183"></a> +<span class="sourceLineNo">184</span> DisableTableProcedure.setTableStateToDisabled(env, tableName);<a name="line.184"></a> +<span class="sourceLineNo">185</span> break;<a name="line.185"></a> +<span class="sourceLineNo">186</span> case ENABLE_TABLE_PRE_OPERATION:<a name="line.186"></a> +<span class="sourceLineNo">187</span> // TODO-MAYBE: call the coprocessor event to undo (eg. DisableTableProcedure.postDisable())?<a name="line.187"></a> +<span class="sourceLineNo">188</span> break;<a name="line.188"></a> +<span class="sourceLineNo">189</span> case ENABLE_TABLE_PREPARE:<a name="line.189"></a> +<span class="sourceLineNo">190</span> // Nothing to undo for this state.<a name="line.190"></a> +<span class="sourceLineNo">191</span> // We do need to count down the latch count so that we don't stuck.<a name="line.191"></a> +<span class="sourceLineNo">192</span> ProcedurePrepareLatch.releaseLatch(syncLatch, this);<a name="line.192"></a> +<span class="sourceLineNo">193</span> break;<a name="line.193"></a> +<span class="sourceLineNo">194</span> default:<a name="line.194"></a> +<span class="sourceLineNo">195</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.195"></a> +<span class="sourceLineNo">196</span> }<a name="line.196"></a> +<span class="sourceLineNo">197</span> } catch (IOException e) {<a name="line.197"></a> +<span class="sourceLineNo">198</span> // This will be retried. Unless there is a bug in the code,<a name="line.198"></a> +<span class="sourceLineNo">199</span> // this should be just a "temporary error" (e.g. network down)<a name="line.199"></a> +<span class="sourceLineNo">200</span> LOG.warn("Failed enable table rollback attempt step=" + state + " table=" + tableName, e);<a name="line.200"></a> +<span class="sourceLineNo">201</span> throw 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> @Override<a name="line.205"></a> +<span class="sourceLineNo">206</span> protected EnableTableState getState(final int stateId) {<a name="line.206"></a> +<span class="sourceLineNo">207</span> return EnableTableState.valueOf(stateId);<a name="line.207"></a> +<span class="sourceLineNo">208</span> }<a name="line.208"></a> +<span class="sourceLineNo">209</span><a name="line.209"></a> +<span class="sourceLineNo">210</span> @Override<a name="line.210"></a> +<span class="sourceLineNo">211</span> protected int getStateId(final EnableTableState state) {<a name="line.211"></a> +<span class="sourceLineNo">212</span> return state.getNumber();<a name="line.212"></a> +<span class="sourceLineNo">213</span> }<a name="line.213"></a> +<span class="sourceLineNo">214</span><a name="line.214"></a> +<span class="sourceLineNo">215</span> @Override<a name="line.215"></a> +<span class="sourceLineNo">216</span> protected EnableTableState getInitialState() {<a name="line.216"></a> +<span class="sourceLineNo">217</span> return EnableTableState.ENABLE_TABLE_PREPARE;<a name="line.217"></a> +<span class="sourceLineNo">218</span> }<a name="line.218"></a> +<span class="sourceLineNo">219</span><a name="line.219"></a> +<span class="sourceLineNo">220</span> @Override<a name="line.220"></a> +<span class="sourceLineNo">221</span> protected void setNextState(final EnableTableState state) {<a name="line.221"></a> +<span class="sourceLineNo">222</span> if (aborted.get()) {<a name="line.222"></a> +<span class="sourceLineNo">223</span> setAbortFailure("Enable-table", "abort requested");<a name="line.223"></a> +<span class="sourceLineNo">224</span> } else {<a name="line.224"></a> +<span class="sourceLineNo">225</span> super.setNextState(state);<a name="line.225"></a> +<span class="sourceLineNo">226</span> }<a name="line.226"></a> +<span class="sourceLineNo">227</span> }<a name="line.227"></a> +<span class="sourceLineNo">228</span><a name="line.228"></a> +<span class="sourceLineNo">229</span> @Override<a name="line.229"></a> +<span class="sourceLineNo">230</span> public boolean abort(final MasterProcedureEnv env) {<a name="line.230"></a> +<span class="sourceLineNo">231</span> aborted.set(true);<a name="line.231"></a> +<span class="sourceLineNo">232</span> return true;<a name="line.232"></a> +<span class="sourceLineNo">233</span> }<a name="line.233"></a> +<span class="sourceLineNo">234</span><a name="line.234"></a> +<span class="sourceLineNo">235</span> @Override<a name="line.235"></a> +<span class="sourceLineNo">236</span> protected boolean acquireLock(final MasterProcedureEnv env) {<a name="line.236"></a> +<span class="sourceLineNo">237</span> if (env.waitInitialized(this)) return false;<a name="line.237"></a> +<span class="sourceLineNo">238</span> return env.getProcedureQueue().tryAcquireTableExclusiveLock(tableName, "enable table");<a name="line.238"></a> +<span class="sourceLineNo">239</span> }<a name="line.239"></a> +<span class="sourceLineNo">240</span><a name="line.240"></a> +<span class="sourceLineNo">241</span> @Override<a name="line.241"></a> +<span class="sourceLineNo">242</span> protected void releaseLock(final MasterProcedureEnv env) {<a name="line.242"></a> +<span class="sourceLineNo">243</span> env.getProcedureQueue().releaseTableExclusiveLock(tableName);<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> @Override<a name="line.246"></a> +<span class="sourceLineNo">247</span> public void serializeStateData(final OutputStream stream) throws IOException {<a name="line.247"></a> +<span class="sourceLineNo">248</span> super.serializeStateData(stream);<a name="line.248"></a> +<span class="sourceLineNo">249</span><a name="line.249"></a> +<span class="sourceLineNo">250</span> MasterProcedureProtos.EnableTableStateData.Builder enableTableMsg =<a name="line.250"></a> +<span class="sourceLineNo">251</span> MasterProcedureProtos.EnableTableStateData.newBuilder()<a name="line.251"></a> +<span class="sourceLineNo">252</span> .setUserInfo(MasterProcedureUtil.toProtoUserInfo(user))<a name="line.252"></a> +<span class="sourceLineNo">253</span> .setTableName(ProtobufUtil.toProtoTableName(tableName))<a name="line.253"></a> +<span class="sourceLineNo">254</span> .setSkipTableStateCheck(skipTableStateCheck);<a name="line.254"></a> +<span class="sourceLineNo">255</span><a name="line.255"></a> +<span class="sourceLineNo">256</span> enableTableMsg.build().writeDelimitedTo(stream);<a name="line.256"></a> +<span class="sourceLineNo">257</span> }<a name="line.257"></a> <span class="sourceLineNo">258</span><a name="line.258"></a> -<span class="sourceLineNo">259</span> enableTableMsg.build().writeDelimitedTo(stream);<a name="line.259"></a> -<span class="sourceLineNo">260</span> }<a name="line.260"></a> -<span class="sourceLineNo">261</span><a name="line.261"></a> -<span class="sourceLineNo">262</span> @Override<a name="line.262"></a> -<span class="sourceLineNo">263</span> public void deserializeStateData(final InputStream stream) throws IOException {<a name="line.263"></a> -<span class="sourceLineNo">264</span> super.deserializeStateData(stream);<a name="line.264"></a> -<span class="sourceLineNo">265</span><a name="line.265"></a> -<span class="sourceLineNo">266</span> MasterProcedureProtos.EnableTableStateData enableTableMsg =<a name="line.266"></a> -<span class="sourceLineNo">267</span> MasterProcedureProtos.EnableTableStateData.parseDelimitedFrom(stream);<a name="line.267"></a> -<span class="sourceLineNo">268</span> user = MasterProcedureUtil.toUserInfo(enableTableMsg.getUserInfo());<a name="line.268"></a> -<span class="sourceLineNo">269</span> tableName = ProtobufUtil.toTableName(enableTableMsg.getTableName());<a name="line.269"></a> -<span class="sourceLineNo">270</span> skipTableStateCheck = enableTableMsg.getSkipTableStateCheck();<a name="line.270"></a> -<span class="sourceLineNo">271</span> }<a name="line.271"></a> -<span class="sourceLineNo">272</span><a name="line.272"></a> -<span class="sourceLineNo">273</span> @Override<a name="line.273"></a> -<span class="sourceLineNo">274</span> public void toStringClassDetails(StringBuilder sb) {<a name="line.274"></a> -<span class="sourceLineNo">275</span> sb.append(getClass().getSimpleName());<a name="line.275"></a> -<span class="sourceLineNo">276</span> sb.append(" (table=");<a name="line.276"></a> -<span class="sourceLineNo">277</span> sb.append(tableName);<a name="line.277"></a> -<span class="sourceLineNo">278</span> sb.append(")");<a name="line.278"></a> -<span class="sourceLineNo">279</span> }<a name="line.279"></a> -<span class="sourceLineNo">280</span><a name="line.280"></a> -<span class="sourceLineNo">281</span> @Override<a name="line.281"></a> -<span class="sourceLineNo">282</span> public TableName getTableName() {<a name="line.282"></a> -<span class="sourceLineNo">283</span> return tableName;<a name="line.283"></a> -<span class="sourceLineNo">284</span> }<a name="line.284"></a> -<span class="sourceLineNo">285</span><a name="line.285"></a> -<span class="sourceLineNo">286</span> @Override<a name="line.286"></a> -<span class="sourceLineNo">287</span> public TableOperationType getTableOperationType() {<a name="line.287"></a> -<span class="sourceLineNo">288</span> return TableOperationType.ENABLE;<a name="line.288"></a> -<span class="sourceLineNo">289</span> }<a name="line.289"></a> -<span class="sourceLineNo">290</span><a name="line.290"></a> -<span class="sourceLineNo">291</span><a name="line.291"></a> -<span class="sourceLineNo">292</span> /**<a name="line.292"></a> -<span class="sourceLineNo">293</span> * Action before any real action of enabling table. Set the exception in the procedure instead<a name="line.293"></a> -<span class="sourceLineNo">294</span> * of throwing it. This approach is to deal with backward compatible with 1.0.<a name="line.294"></a> -<span class="sourceLineNo">295</span> * @param env MasterProcedureEnv<a name="line.295"></a> -<span class="sourceLineNo">296</span> * @return whether the table passes the necessary checks<a name="line.296"></a> -<span class="sourceLineNo">297</span> * @throws IOException<a name="line.297"></a> -<span class="sourceLineNo">298</span> */<a name="line.298"></a> -<span class="sourceLineNo">299</span> private boolean prepareEnable(final MasterProcedureEnv env) throws IOException {<a name="line.299"></a> -<span class="sourceLineNo">300</span> boolean canTableBeEnabled = true;<a name="line.300"></a> -<span class="sourceLineNo">301</span><a name="line.301"></a> -<span class="sourceLineNo">302</span> // Check whether table exists<a name="line.302"></a> -<span class="sourceLineNo">303</span> if (!MetaTableAccessor.tableExists(env.getMasterServices().getConnection(), tableName)) {<a name="line.303"></a> -<span class="sourceLineNo">304</span> setFailure("master-enable-table", new TableNotFoundException(tableName));<a name="line.304"></a> -<span class="sourceLineNo">305</span> canTableBeEnabled = false;<a name="line.305"></a> -<span class="sourceLineNo">306</span> } else if (!skipTableStateCheck) {<a name="line.306"></a> -<span class="sourceLineNo">307</span> // There could be multiple client requests trying to disable or enable<a name="line.307"></a> -<span class="sourceLineNo">308</span> // the table at the same time. Ensure only the first request is honored<a name="line.308"></a> -<span class="sourceLineNo">309</span> // After that, no other requests can be accepted until the table reaches<a name="line.309"></a> -<span class="sourceLineNo">310</span> // DISABLED or ENABLED.<a name="line.310"></a> -<span class="sourceLineNo">311</span> //<a name="line.311"></a> -<span class="sourceLineNo">312</span> // Note: in 1.0 release, we called TableStateManager.setTableStateIfInStates() to set<a name="line.312"></a> -<span class="sourceLineNo">313</span> // the state to ENABLING from DISABLED. The implementation was done before table lock<a name="line.313"></a> -<span class="sourceLineNo">314</span> // was implemented. With table lock, there is no need to set the state here (it will<a name="line.314"></a> -<span class="sourceLineNo">315</span> // set the state later on). 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Set the exception in the procedure instead<a name="line.290"></a> +<span class="sourceLineNo">291</span> * of throwing it. This approach is to deal with backward compatible with 1.0.<a name="line.291"></a> +<span class="sourceLineNo">292</span> * @param env MasterProcedureEnv<a name="line.292"></a> +<span class="sourceLineNo">293</span> * @return whether the table passes the necessary checks<a name="line.293"></a> +<span class="sourceLineNo">294</span> * @throws IOException<a name="line.294"></a> +<span class="sourceLineNo">295</span> */<a name="line.295"></a> +<span class="sourceLineNo">296</span> private boolean prepareEnable(final MasterProcedureEnv env) throws IOException {<a name="line.296"></a> +<span class="sourceLineNo">297</span> boolean canTableBeEnabled = true;<a name="line.297"></a> +<span class="sourceLineNo">298</span><a name="line.298"></a> +<span class="sourceLineNo">299</span> // Check whether table exists<a name="line.299"></a> +<span class="sourceLineNo">300</span> if (!MetaTableAccessor.tableExists(env.getMasterServices().getConnection(), tableName)) {<a name="line.300"></a> +<span class="sourceLineNo">301</span> setFailure("master-enable-table", new TableNotFoundException(tableName));<a name="line.301"></a> +<span class="sourceLineNo">302</span> canTableBeEnabled = false;<a name="line.302"></a> +<span class="sourceLineNo">303</span> } else if (!skipTableStateCheck) {<a name="line.303"></a> +<span class="sourceLineNo">304</span> // There could be multiple client requests trying to disable or enable<a name="line.304"></a> +<span class="sourceLineNo">305</span> // the table at the same time. 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A quick state check should be enough for us to move forward.<a name="line.312"></a> +<span class="sourceLineNo">313</span> TableStateManager tsm = env.getMasterServices().getAssignmentManager().getTableStateManager();<a name="line.313"></a> +<span class="sourceLineNo">314</span> TableState.State state = tsm.getTableState(tableName);<a name="line.314"></a> +<span class="sourceLineNo">315</span> if(!state.equals(TableState.State.DISABLED)){<a name="line.315"></a> +<span class="sourceLineNo">316</span> LOG.info("Table " + tableName + " isn't disabled;is "+state.name()+"; skipping enable");<a name="line.316"></a> +<span class="sourceLineNo">317</span> setFailure("master-enable-table", new TableNotDisabledException(<a name="line.317"></a> +<span class="sourceLineNo">318</span> this.tableName+" state is "+state.name()));<a name="line.318"></a> +<span class="sourceLineNo">319</span> canTableBeEnabled = false;<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> +<span class="sourceLineNo">322</span><a name="line.322"></a> +<span class="sourceLineNo">323</span> // We are done the check. 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If we fail to do<a name="line.371"></a> -<span class="sourceLineNo">372</span> // that, it is ok that the table has some offline regions; user can fix it manually.<a name="line.372"></a> -<span class="sourceLineNo">373</span><a name="line.373"></a> -<span class="sourceLineNo">374</span> // Dev consideration: add a config to control max number of retry. 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If we fail to do<a name="line.368"></a> +<span class="sourceLineNo">369</span> // that, it is ok that the table has some offline regions; user can fix it manually.<a name="line.369"></a> +<span class="sourceLineNo">370</span><a name="line.370"></a> +<span class="sourceLineNo">371</span> // Dev consideration: add a config to control max number of retry. For now, it is hard coded.<a name="line.371"></a> +<span class="sourceLineNo">372</span> int maxTry = (retryRequired ? 10 : 1);<a name="line.372"></a> +<span class="sourceLineNo">373</span> boolean done = false;<a name="line.373"></a> +<span class="sourceLineNo">374</span><a name="line.374"></a> +<span class="sourceLineNo">375</span> do {<a name="line.375"></a> +<span class="sourceLineNo">376</span> try {<a name="line.376"></a> +<span class="sourceLineNo">377</span> done = markRegionsOnline(env, tableName);<a name="line.377"></a> +<span class="sourceLineNo">378</span> if (done) {<a name="line.378"></a> +<span class="sourceLineNo">379</span> break;<a name="line.379"></a> +<span class="sourceLineNo">380</span> }<a name="line.380"></a> +<span class="sourceLineNo">381</span> maxTry--;<a name="line.381"></a> +<span class="sourceLineNo">382</span> } catch (Exception e) {<a name="line.382"></a> +<span class="sourceLineNo">383</span> LOG.warn("Received exception while marking regions online. tries left: " + maxTry, e);<a name="line.383"></a> <span class="sourceLineNo">384</span> maxTry--;<a name="line.384"></a> -<span class="sourceLineNo">385</span> } catch (Exception e) {<a name="line.385"></a> -<span class="sourceLineNo">386</span> LOG.warn("Received exception while marking regions online. tries left: " + maxTry, e);<a name="line.386"></a> -<span class="sourceLineNo">387</span> maxTry--;<a name="line.387"></a> -<span class="sourceLineNo">388</span> if (maxTry > 0) {<a name="line.388"></a> -<span class="sourceLineNo">389</span> continue; // we still have some retry left, try again.<a name="line.389"></a> -<span class="sourceLineNo">390</span> }<a name="line.390"></a> -<span class="sourceLineNo">391</span> throw e;<a name="line.391"></a> -<span class="sourceLineNo">392</span> }<a name="line.392"></a> -<span class="sourceLineNo">393</span> } while (maxTry > 0);<a name="line.393"></a> -<span class="sourceLineNo">394</span><a name="line.394"></a> -<span class="sourceLineNo">395</span> if (!done) {<a name="line.395"></a> -<span class="sourceLineNo">396</span> LOG.warn("Some or all regions of the Table '" + tableName + "' were offline");<a name="line.396"></a> -<span class="sourceLineNo">397</span> }<a name="line.397"></a> -<span class="sourceLineNo">398</span> }<a name="line.398"></a> -<span class="sourceLineNo">399</span><a name="line.399"></a> -<span class="sourceLineNo">400</span> /**<a name="line.400"></a> -<span class="sourceLineNo">401</span> * Mark offline regions of the table online<a name="line.401"></a> -<span class="sourceLineNo">402</span> * @param env MasterProcedureEnv<a name="line.402"></a> -<span class="sourceLineNo">403</span> * @param tableName the target table<a name="line.403"></a> -<span class="sourceLineNo">404</span> * @return whether the operation is fully completed or being interrupted.<a name="line.404"></a> -<span class="sourceLineNo">405</span> * @throws IOException<a name="line.405"></a> -<span class="sourceLineNo">406</span> */<a name="line.406"></a> -<span class="sourceLineNo">407</span> private static boolean markRegionsOnline(final MasterProcedureEnv env, final TableName tableName)<a name="line.407"></a> -<span class="sourceLineNo">408</span> throws IOException {<a name="line.408"></a> -<span class="sourceLineNo">409</span> final AssignmentManager assignmentManager = env.getMasterServices().getAssignmentManager();<a name="line.409"></a> -<span class="sourceLineNo">410</span> final MasterServices masterServices = env.getMasterServices();<a name="line.410"></a> -<span class="sourceLineNo">411</span> final ServerManager serverManager = masterServices.getServerManager();<a name="line.411"></a> -<span class="sourceLineNo">412</span> boolean done = false;<a name="line.412"></a> -<span class="sourceLineNo">413</span> // Get the regions of this table. 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We're done when all listed<a name="line.410"></a> +<span class="sourceLineNo">411</span> // tables are onlined.<a name="line.411"></a> +<span class="sourceLineNo">412</span> List<Pair<HRegionInfo, ServerName>> tableRegionsAndLocations;<a name="line.412"></a> +<span class="sourceLineNo">413</span><a name="line.413"></a> +<span class="sourceLineNo">414</span> if (TableName.META_TABLE_NAME.equals(tableName)) {<a name="line.414"></a> +<span class="sourceLineNo">415</span> tableRegionsAndLocations =<a name="line.415"></a> +<span class="sourceLineNo">416</span> new MetaTableLocator().getMetaRegionsAndLocations(masterServices.getZooKeeper());<a name="line.416"></a> +<span class="sourceLineNo">417</span> } else {<a name="line.417"></a> <span class="sourceLineNo">418</span> tableRegionsAndLocations =<a name="line.418"></a> -<span class="sourceLineNo">419</span> new MetaTableLocator().getMetaRegionsAndLocations(masterServices.getZooKeeper());<a name="line.419"></a> -<span class="sourceLineNo">420</span> } else {<a name="line.420"></a> -<span class="sourceLineNo">421</span> tableRegionsAndLocations =<a name="line.421"></a> -<span class="sourceLineNo">422</span> MetaTableAccessor.getTableRegionsAndLocations(masterServices.getConnection(), tableName);<a name="line.422"></a> -<span class="sourceLineNo">423</span> }<a name="line.423"></a> -<span class="sourceLineNo">424</span><a name="line.424"></a> -<span class="sourceLineNo">425</span> int countOfRegionsInTable = tableRegionsAndLocations.size();<a name="line.425"></a> -<span class="sourceLineNo">426</span> Map<HRegionInfo, ServerName> regionsToAssign =<a name="line.426"></a> -<span class="sourceLineNo">427</span> regionsToAssignWithServerName(env, tableRegionsAndLocations);<a name="line.427"></a> -<span class="sourceLineNo">428</span><a name="line.428"></a> -<span class="sourceLineNo">429</span> // need to potentially create some regions for the replicas<a name="line.429"></a> -<span 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Ignoring", e);<a name="line.487"></a> -<span class="sourceLineNo">488</span> }<a name="line.488"></a> -<span class="sourceLineNo">489</span> }<a name="line.489"></a> -<span class="sourceLineNo">490</span><a name="line.490"></a> -<span class="sourceLineNo">491</span> /**<a name="line.491"></a> -<span class="sourceLineNo">492</span> * Mark table state to Enabled<a name="line.492"></a> -<span class="sourceLineNo">493</span> * @param env MasterProcedureEnv<a name="line.493"></a> -<span class="sourceLineNo">494</span> * @throws IOException<a name="line.494"></a> -<span class="sourceLineNo">495</span> */<a name="line.495"></a> -<span class="sourceLineNo">496</span> protected static void setTableStateToEnabled(<a name="line.496"></a> -<span class="sourceLineNo">497</span> final MasterProcedureEnv env,<a name="line.497"></a> -<span class="sourceLineNo">498</span> final TableName tableName) throws IOException {<a name="line.498"></a> -<span class="sourceLineNo">499</span> // Flip the table to Enabled<a name="line.499"></a> -<span class="sourceLineNo">500</span> env.getMasterServices().getAssignmentManager().getTableStateManager().setTableState(<a name="line.500"></a> -<span class="sourceLineNo">501</span> tableName,<a name="line.501"></a> -<span class="sourceLineNo">502</span> TableState.State.ENABLED);<a name="line.502"></a> -<span class="sourceLineNo">503</span> LOG.info("Table '" + tableName + "' was successfully enabled.");<a name="line.503"></a> -<span class="sourceLineNo">504</span> }<a name="line.504"></a> -<span class="sourceLineNo">505</span><a name="line.505"></a> -<span class="sourceLineNo">506</span> /**<a name="line.506"></a> -<span class="sourceLineNo">507</span> * Action after enabling table.<a name="line.507"></a> -<span class="sourceLineNo">508</span> * @param env MasterProcedureEnv<a name="line.508"></a> -<span class="sourceLineNo">509</span> * @param state the procedure state<a name="line.509"></a> -<span class="sourceLineNo">510</span> * @throws IOException<a name="line.510"></a> -<span class="sourceLineNo">511</span> * @throws InterruptedException<a name="line.511"></a> -<span class="sourceLineNo">512</span> */<a name="line.512"></a> -<span class="sourceLineNo">513</span> private void postEnable(final MasterProcedureEnv env, final EnableTableState state)<a name="line.513"></a> -<span class="sourceLineNo">514</span> throws IOException, InterruptedException {<a name="line.514"></a> -<span class="sourceLineNo">515</span> runCoprocessorAction(env, state);<a name="line.515"></a> -<span class="sourceLineNo">516</span> }<a name="line.516"></a> -<span class="sourceLineNo">517</span><a name="line.517"></a> -<span class="sourceLineNo">518</span> /**<a name="line.518"></a> -<span class="sourceLineNo">519</span> * The procedure could be restarted from a different machine. 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<TRUNCATED>
