http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2d5075d7/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.Predicate.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.Predicate.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.Predicate.html index 7af3762..9837a0e 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.Predicate.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.Predicate.html @@ -40,208 +40,207 @@ <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.CoordinatedStateException;<a name="line.32"></a> <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.33"></a> <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.ProcedureInfo;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.master.assignment.RegionStates;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.quotas.MasterQuotaManager;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.43"></a> -<span class="sourceLineNo">044</span><a name="line.44"></a> -<span class="sourceLineNo">045</span>/**<a name="line.45"></a> -<span class="sourceLineNo">046</span> * Helper to synchronously wait on conditions.<a name="line.46"></a> -<span class="sourceLineNo">047</span> * This will be removed in the future (mainly when the AssignmentManager will be<a name="line.47"></a> -<span class="sourceLineNo">048</span> * replaced with a Procedure version) by using ProcedureYieldException,<a name="line.48"></a> -<span class="sourceLineNo">049</span> * and the queue will handle waiting and scheduling based on events.<a name="line.49"></a> -<span class="sourceLineNo">050</span> */<a name="line.50"></a> -<span class="sourceLineNo">051</span>@InterfaceAudience.Private<a name="line.51"></a> -<span class="sourceLineNo">052</span>@InterfaceStability.Evolving<a name="line.52"></a> -<span class="sourceLineNo">053</span>public final class ProcedureSyncWait {<a name="line.53"></a> -<span class="sourceLineNo">054</span> private static final Log LOG = LogFactory.getLog(ProcedureSyncWait.class);<a name="line.54"></a> -<span class="sourceLineNo">055</span><a name="line.55"></a> -<span class="sourceLineNo">056</span> private ProcedureSyncWait() {}<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 interface Predicate<T> {<a name="line.59"></a> -<span class="sourceLineNo">060</span> T evaluate() throws IOException;<a name="line.60"></a> -<span class="sourceLineNo">061</span> }<a name="line.61"></a> -<span class="sourceLineNo">062</span><a name="line.62"></a> -<span class="sourceLineNo">063</span> private static class ProcedureFuture implements Future<byte[]> {<a name="line.63"></a> -<span class="sourceLineNo">064</span> private final ProcedureExecutor<MasterProcedureEnv> procExec;<a name="line.64"></a> -<span class="sourceLineNo">065</span> private final long procId;<a name="line.65"></a> -<span class="sourceLineNo">066</span><a name="line.66"></a> -<span class="sourceLineNo">067</span> private boolean hasResult = false;<a name="line.67"></a> -<span class="sourceLineNo">068</span> private byte[] result = null;<a name="line.68"></a> -<span class="sourceLineNo">069</span><a name="line.69"></a> -<span class="sourceLineNo">070</span> public ProcedureFuture(ProcedureExecutor<MasterProcedureEnv> procExec, long procId) {<a name="line.70"></a> -<span class="sourceLineNo">071</span> this.procExec = procExec;<a name="line.71"></a> -<span class="sourceLineNo">072</span> this.procId = procId;<a name="line.72"></a> -<span class="sourceLineNo">073</span> }<a name="line.73"></a> -<span class="sourceLineNo">074</span><a name="line.74"></a> -<span class="sourceLineNo">075</span> @Override<a name="line.75"></a> -<span class="sourceLineNo">076</span> public boolean cancel(boolean mayInterruptIfRunning) { return false; }<a name="line.76"></a> -<span class="sourceLineNo">077</span><a name="line.77"></a> -<span class="sourceLineNo">078</span> @Override<a name="line.78"></a> -<span class="sourceLineNo">079</span> public boolean isCancelled() { return false; }<a name="line.79"></a> -<span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span> @Override<a name="line.81"></a> -<span class="sourceLineNo">082</span> public boolean isDone() { return hasResult; }<a name="line.82"></a> -<span class="sourceLineNo">083</span><a name="line.83"></a> -<span class="sourceLineNo">084</span> @Override<a name="line.84"></a> -<span class="sourceLineNo">085</span> public byte[] get() throws InterruptedException, ExecutionException {<a name="line.85"></a> -<span class="sourceLineNo">086</span> if (hasResult) return result;<a name="line.86"></a> -<span class="sourceLineNo">087</span> try {<a name="line.87"></a> -<span class="sourceLineNo">088</span> return waitForProcedureToComplete(procExec, procId, Long.MAX_VALUE);<a name="line.88"></a> -<span class="sourceLineNo">089</span> } catch (Exception e) {<a name="line.89"></a> -<span class="sourceLineNo">090</span> throw new ExecutionException(e);<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> @Override<a name="line.94"></a> -<span class="sourceLineNo">095</span> public byte[] get(long timeout, TimeUnit unit)<a name="line.95"></a> -<span class="sourceLineNo">096</span> throws InterruptedException, ExecutionException, TimeoutException {<a name="line.96"></a> -<span class="sourceLineNo">097</span> if (hasResult) return result;<a name="line.97"></a> -<span class="sourceLineNo">098</span> try {<a name="line.98"></a> -<span class="sourceLineNo">099</span> result = waitForProcedureToComplete(procExec, procId, unit.toMillis(timeout));<a name="line.99"></a> -<span class="sourceLineNo">100</span> hasResult = true;<a name="line.100"></a> -<span class="sourceLineNo">101</span> return result;<a name="line.101"></a> -<span class="sourceLineNo">102</span> } catch (TimeoutIOException e) {<a name="line.102"></a> -<span class="sourceLineNo">103</span> throw new TimeoutException(e.getMessage());<a name="line.103"></a> -<span class="sourceLineNo">104</span> } catch (Exception e) {<a name="line.104"></a> -<span class="sourceLineNo">105</span> throw new ExecutionException(e);<a name="line.105"></a> -<span class="sourceLineNo">106</span> }<a name="line.106"></a> -<span class="sourceLineNo">107</span> }<a name="line.107"></a> -<span class="sourceLineNo">108</span> }<a name="line.108"></a> -<span class="sourceLineNo">109</span><a name="line.109"></a> -<span class="sourceLineNo">110</span> public static Future<byte[]> submitProcedure(final ProcedureExecutor<MasterProcedureEnv> procExec,<a name="line.110"></a> -<span class="sourceLineNo">111</span> final Procedure proc) {<a name="line.111"></a> -<span class="sourceLineNo">112</span> if (proc.isInitializing()) {<a name="line.112"></a> -<span class="sourceLineNo">113</span> procExec.submitProcedure(proc);<a name="line.113"></a> -<span class="sourceLineNo">114</span> }<a name="line.114"></a> -<span class="sourceLineNo">115</span> return new ProcedureFuture(procExec, proc.getProcId());<a name="line.115"></a> -<span class="sourceLineNo">116</span> }<a name="line.116"></a> -<span class="sourceLineNo">117</span><a name="line.117"></a> -<span class="sourceLineNo">118</span> public static byte[] submitAndWaitProcedure(ProcedureExecutor<MasterProcedureEnv> procExec,<a name="line.118"></a> -<span class="sourceLineNo">119</span> final Procedure proc) throws IOException {<a name="line.119"></a> -<span class="sourceLineNo">120</span> if (proc.isInitializing()) {<a name="line.120"></a> -<span class="sourceLineNo">121</span> procExec.submitProcedure(proc);<a name="line.121"></a> -<span class="sourceLineNo">122</span> }<a name="line.122"></a> -<span class="sourceLineNo">123</span> return waitForProcedureToCompleteIOE(procExec, proc.getProcId(), Long.MAX_VALUE);<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span><a name="line.125"></a> -<span class="sourceLineNo">126</span> public static byte[] waitForProcedureToCompleteIOE(<a name="line.126"></a> -<span class="sourceLineNo">127</span> final ProcedureExecutor<MasterProcedureEnv> procExec, final long procId, final long timeout)<a name="line.127"></a> -<span class="sourceLineNo">128</span> throws IOException {<a name="line.128"></a> -<span class="sourceLineNo">129</span> try {<a name="line.129"></a> -<span class="sourceLineNo">130</span> return waitForProcedureToComplete(procExec, procId, timeout);<a name="line.130"></a> -<span class="sourceLineNo">131</span> } catch (IOException e) {<a name="line.131"></a> -<span class="sourceLineNo">132</span> throw e;<a name="line.132"></a> -<span class="sourceLineNo">133</span> } catch (Exception e) {<a name="line.133"></a> -<span class="sourceLineNo">134</span> throw new IOException(e);<a name="line.134"></a> -<span class="sourceLineNo">135</span> }<a name="line.135"></a> -<span class="sourceLineNo">136</span> }<a name="line.136"></a> -<span class="sourceLineNo">137</span><a name="line.137"></a> -<span class="sourceLineNo">138</span> public static byte[] waitForProcedureToComplete(<a name="line.138"></a> -<span class="sourceLineNo">139</span> final ProcedureExecutor<MasterProcedureEnv> procExec, final long procId, final long timeout)<a name="line.139"></a> -<span class="sourceLineNo">140</span> throws IOException {<a name="line.140"></a> -<span class="sourceLineNo">141</span> waitFor(procExec.getEnvironment(), "pid=" + procId,<a name="line.141"></a> -<span class="sourceLineNo">142</span> new ProcedureSyncWait.Predicate<Boolean>() {<a name="line.142"></a> -<span class="sourceLineNo">143</span> @Override<a name="line.143"></a> -<span class="sourceLineNo">144</span> public Boolean evaluate() throws IOException {<a name="line.144"></a> -<span class="sourceLineNo">145</span> return !procExec.isRunning() || procExec.isFinished(procId);<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> );<a name="line.148"></a> -<span class="sourceLineNo">149</span><a name="line.149"></a> -<span class="sourceLineNo">150</span> ProcedureInfo result = procExec.getResult(procId);<a name="line.150"></a> -<span class="sourceLineNo">151</span> if (result != null) {<a name="line.151"></a> -<span class="sourceLineNo">152</span> if (result.isFailed()) {<a name="line.152"></a> -<span class="sourceLineNo">153</span> // If the procedure fails, we should always have an exception captured. Throw it.<a name="line.153"></a> -<span class="sourceLineNo">154</span> throw result.getException();<a name="line.154"></a> -<span class="sourceLineNo">155</span> }<a name="line.155"></a> -<span class="sourceLineNo">156</span> return result.getResult();<a name="line.156"></a> -<span class="sourceLineNo">157</span> } else {<a name="line.157"></a> -<span class="sourceLineNo">158</span> if (procExec.isRunning()) {<a name="line.158"></a> -<span class="sourceLineNo">159</span> throw new IOException("pid= " + procId + "not found");<a name="line.159"></a> -<span class="sourceLineNo">160</span> } else {<a name="line.160"></a> -<span class="sourceLineNo">161</span> throw new IOException("The Master is Aborting");<a name="line.161"></a> -<span class="sourceLineNo">162</span> }<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> public static <T> T waitFor(MasterProcedureEnv env, String purpose, Predicate<T> predicate)<a name="line.166"></a> -<span class="sourceLineNo">167</span> throws IOException {<a name="line.167"></a> -<span class="sourceLineNo">168</span> final Configuration conf = env.getMasterConfiguration();<a name="line.168"></a> -<span class="sourceLineNo">169</span> final long waitTime = conf.getLong("hbase.master.wait.on.region", 5 * 60 * 1000);<a name="line.169"></a> -<span class="sourceLineNo">170</span> final long waitingTimeForEvents = conf.getInt("hbase.master.event.waiting.time", 1000);<a name="line.170"></a> -<span class="sourceLineNo">171</span> return waitFor(env, waitTime, waitingTimeForEvents, purpose, predicate);<a name="line.171"></a> -<span class="sourceLineNo">172</span> }<a name="line.172"></a> -<span class="sourceLineNo">173</span><a name="line.173"></a> -<span class="sourceLineNo">174</span> public static <T> T waitFor(MasterProcedureEnv env, long waitTime, long waitingTimeForEvents,<a name="line.174"></a> -<span class="sourceLineNo">175</span> String purpose, Predicate<T> predicate) throws IOException {<a name="line.175"></a> -<span class="sourceLineNo">176</span> final long done = EnvironmentEdgeManager.currentTime() + waitTime;<a name="line.176"></a> -<span class="sourceLineNo">177</span> boolean logged = false;<a name="line.177"></a> -<span class="sourceLineNo">178</span> do {<a name="line.178"></a> -<span class="sourceLineNo">179</span> T result = predicate.evaluate();<a name="line.179"></a> -<span class="sourceLineNo">180</span> if (result != null && !result.equals(Boolean.FALSE)) {<a name="line.180"></a> -<span class="sourceLineNo">181</span> return result;<a name="line.181"></a> -<span class="sourceLineNo">182</span> }<a name="line.182"></a> -<span class="sourceLineNo">183</span> try {<a name="line.183"></a> -<span class="sourceLineNo">184</span> Thread.sleep(waitingTimeForEvents);<a name="line.184"></a> -<span class="sourceLineNo">185</span> } catch (InterruptedException e) {<a name="line.185"></a> -<span class="sourceLineNo">186</span> LOG.warn("Interrupted while sleeping, waiting on " + purpose);<a name="line.186"></a> -<span class="sourceLineNo">187</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<a name="line.187"></a> -<span class="sourceLineNo">188</span> }<a name="line.188"></a> -<span class="sourceLineNo">189</span> if (LOG.isTraceEnabled()) {<a name="line.189"></a> -<span class="sourceLineNo">190</span> LOG.trace("waitFor " + purpose);<a name="line.190"></a> -<span class="sourceLineNo">191</span> } else {<a name="line.191"></a> -<span class="sourceLineNo">192</span> if (!logged) LOG.debug("waitFor " + purpose);<a name="line.192"></a> -<span class="sourceLineNo">193</span> }<a name="line.193"></a> -<span class="sourceLineNo">194</span> logged = true;<a name="line.194"></a> -<span class="sourceLineNo">195</span> } while (EnvironmentEdgeManager.currentTime() < done && env.isRunning());<a name="line.195"></a> -<span class="sourceLineNo">196</span><a name="line.196"></a> -<span class="sourceLineNo">197</span> throw new TimeoutIOException("Timed out while waiting on " + purpose);<a name="line.197"></a> -<span class="sourceLineNo">198</span> }<a name="line.198"></a> -<span class="sourceLineNo">199</span><a name="line.199"></a> -<span class="sourceLineNo">200</span> protected static void waitMetaRegions(final MasterProcedureEnv env) throws IOException {<a name="line.200"></a> -<span class="sourceLineNo">201</span> int timeout = env.getMasterConfiguration().getInt("hbase.client.catalog.timeout", 10000);<a name="line.201"></a> -<span class="sourceLineNo">202</span> try {<a name="line.202"></a> -<span class="sourceLineNo">203</span> if (env.getMasterServices().getMetaTableLocator().waitMetaRegionLocation(<a name="line.203"></a> -<span class="sourceLineNo">204</span> env.getMasterServices().getZooKeeper(), timeout) == null) {<a name="line.204"></a> -<span class="sourceLineNo">205</span> throw new NotAllMetaRegionsOnlineException();<a name="line.205"></a> -<span class="sourceLineNo">206</span> }<a name="line.206"></a> -<span class="sourceLineNo">207</span> } catch (InterruptedException e) {<a name="line.207"></a> -<span class="sourceLineNo">208</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<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><a name="line.211"></a> -<span class="sourceLineNo">212</span> protected static void waitRegionInTransition(final MasterProcedureEnv env,<a name="line.212"></a> -<span class="sourceLineNo">213</span> final List<HRegionInfo> regions) throws IOException, CoordinatedStateException {<a name="line.213"></a> -<span class="sourceLineNo">214</span> final RegionStates states = env.getAssignmentManager().getRegionStates();<a name="line.214"></a> -<span class="sourceLineNo">215</span> for (final HRegionInfo region : regions) {<a name="line.215"></a> -<span class="sourceLineNo">216</span> ProcedureSyncWait.waitFor(env, "regions " + region.getRegionNameAsString() + " in transition",<a name="line.216"></a> -<span class="sourceLineNo">217</span> new ProcedureSyncWait.Predicate<Boolean>() {<a name="line.217"></a> -<span class="sourceLineNo">218</span> @Override<a name="line.218"></a> -<span class="sourceLineNo">219</span> public Boolean evaluate() throws IOException {<a name="line.219"></a> -<span class="sourceLineNo">220</span> return !states.isRegionInTransition(region);<a name="line.220"></a> -<span class="sourceLineNo">221</span> }<a name="line.221"></a> -<span class="sourceLineNo">222</span> });<a name="line.222"></a> -<span class="sourceLineNo">223</span> }<a name="line.223"></a> -<span class="sourceLineNo">224</span> }<a name="line.224"></a> -<span class="sourceLineNo">225</span><a name="line.225"></a> -<span class="sourceLineNo">226</span> protected static MasterQuotaManager getMasterQuotaManager(final MasterProcedureEnv env)<a name="line.226"></a> -<span class="sourceLineNo">227</span> throws IOException {<a name="line.227"></a> -<span class="sourceLineNo">228</span> return ProcedureSyncWait.waitFor(env, "quota manager to be available",<a name="line.228"></a> -<span class="sourceLineNo">229</span> new ProcedureSyncWait.Predicate<MasterQuotaManager>() {<a name="line.229"></a> -<span class="sourceLineNo">230</span> @Override<a name="line.230"></a> -<span class="sourceLineNo">231</span> public MasterQuotaManager evaluate() throws IOException {<a name="line.231"></a> -<span class="sourceLineNo">232</span> return env.getMasterServices().getMasterQuotaManager();<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> }<a name="line.235"></a> -<span class="sourceLineNo">236</span>}<a name="line.236"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.master.assignment.RegionStates;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.quotas.MasterQuotaManager;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.42"></a> +<span class="sourceLineNo">043</span><a name="line.43"></a> +<span class="sourceLineNo">044</span>/**<a name="line.44"></a> +<span class="sourceLineNo">045</span> * Helper to synchronously wait on conditions.<a name="line.45"></a> +<span class="sourceLineNo">046</span> * This will be removed in the future (mainly when the AssignmentManager will be<a name="line.46"></a> +<span class="sourceLineNo">047</span> * replaced with a Procedure version) by using ProcedureYieldException,<a name="line.47"></a> +<span class="sourceLineNo">048</span> * and the queue will handle waiting and scheduling based on events.<a name="line.48"></a> +<span class="sourceLineNo">049</span> */<a name="line.49"></a> +<span class="sourceLineNo">050</span>@InterfaceAudience.Private<a name="line.50"></a> +<span class="sourceLineNo">051</span>@InterfaceStability.Evolving<a name="line.51"></a> +<span class="sourceLineNo">052</span>public final class ProcedureSyncWait {<a name="line.52"></a> +<span class="sourceLineNo">053</span> private static final Log LOG = LogFactory.getLog(ProcedureSyncWait.class);<a name="line.53"></a> +<span class="sourceLineNo">054</span><a name="line.54"></a> +<span class="sourceLineNo">055</span> private ProcedureSyncWait() {}<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 interface Predicate<T> {<a name="line.58"></a> +<span class="sourceLineNo">059</span> T evaluate() throws IOException;<a name="line.59"></a> +<span class="sourceLineNo">060</span> }<a name="line.60"></a> +<span class="sourceLineNo">061</span><a name="line.61"></a> +<span class="sourceLineNo">062</span> private static class ProcedureFuture implements Future<byte[]> {<a name="line.62"></a> +<span class="sourceLineNo">063</span> private final ProcedureExecutor<MasterProcedureEnv> procExec;<a name="line.63"></a> +<span class="sourceLineNo">064</span> private final long procId;<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> private boolean hasResult = false;<a name="line.66"></a> +<span class="sourceLineNo">067</span> private byte[] result = null;<a name="line.67"></a> +<span class="sourceLineNo">068</span><a name="line.68"></a> +<span class="sourceLineNo">069</span> public ProcedureFuture(ProcedureExecutor<MasterProcedureEnv> procExec, long procId) {<a name="line.69"></a> +<span class="sourceLineNo">070</span> this.procExec = procExec;<a name="line.70"></a> +<span class="sourceLineNo">071</span> this.procId = procId;<a name="line.71"></a> +<span class="sourceLineNo">072</span> }<a name="line.72"></a> +<span class="sourceLineNo">073</span><a name="line.73"></a> +<span class="sourceLineNo">074</span> @Override<a name="line.74"></a> +<span class="sourceLineNo">075</span> public boolean cancel(boolean mayInterruptIfRunning) { return false; }<a name="line.75"></a> +<span class="sourceLineNo">076</span><a name="line.76"></a> +<span class="sourceLineNo">077</span> @Override<a name="line.77"></a> +<span class="sourceLineNo">078</span> public boolean isCancelled() { return false; }<a name="line.78"></a> +<span class="sourceLineNo">079</span><a name="line.79"></a> +<span class="sourceLineNo">080</span> @Override<a name="line.80"></a> +<span class="sourceLineNo">081</span> public boolean isDone() { return hasResult; }<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> @Override<a name="line.83"></a> +<span class="sourceLineNo">084</span> public byte[] get() throws InterruptedException, ExecutionException {<a name="line.84"></a> +<span class="sourceLineNo">085</span> if (hasResult) return result;<a name="line.85"></a> +<span class="sourceLineNo">086</span> try {<a name="line.86"></a> +<span class="sourceLineNo">087</span> return waitForProcedureToComplete(procExec, procId, Long.MAX_VALUE);<a name="line.87"></a> +<span class="sourceLineNo">088</span> } catch (Exception e) {<a name="line.88"></a> +<span class="sourceLineNo">089</span> throw new ExecutionException(e);<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> @Override<a name="line.93"></a> +<span class="sourceLineNo">094</span> public byte[] get(long timeout, TimeUnit unit)<a name="line.94"></a> +<span class="sourceLineNo">095</span> throws InterruptedException, ExecutionException, TimeoutException {<a name="line.95"></a> +<span class="sourceLineNo">096</span> if (hasResult) return result;<a name="line.96"></a> +<span class="sourceLineNo">097</span> try {<a name="line.97"></a> +<span class="sourceLineNo">098</span> result = waitForProcedureToComplete(procExec, procId, unit.toMillis(timeout));<a name="line.98"></a> +<span class="sourceLineNo">099</span> hasResult = true;<a name="line.99"></a> +<span class="sourceLineNo">100</span> return result;<a name="line.100"></a> +<span class="sourceLineNo">101</span> } catch (TimeoutIOException e) {<a name="line.101"></a> +<span class="sourceLineNo">102</span> throw new TimeoutException(e.getMessage());<a name="line.102"></a> +<span class="sourceLineNo">103</span> } catch (Exception e) {<a name="line.103"></a> +<span class="sourceLineNo">104</span> throw new ExecutionException(e);<a name="line.104"></a> +<span class="sourceLineNo">105</span> }<a name="line.105"></a> +<span class="sourceLineNo">106</span> }<a name="line.106"></a> +<span class="sourceLineNo">107</span> }<a name="line.107"></a> +<span class="sourceLineNo">108</span><a name="line.108"></a> +<span class="sourceLineNo">109</span> public static Future<byte[]> submitProcedure(final ProcedureExecutor<MasterProcedureEnv> procExec,<a name="line.109"></a> +<span class="sourceLineNo">110</span> final Procedure proc) {<a name="line.110"></a> +<span class="sourceLineNo">111</span> if (proc.isInitializing()) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> procExec.submitProcedure(proc);<a name="line.112"></a> +<span class="sourceLineNo">113</span> }<a name="line.113"></a> +<span class="sourceLineNo">114</span> return new ProcedureFuture(procExec, proc.getProcId());<a name="line.114"></a> +<span class="sourceLineNo">115</span> }<a name="line.115"></a> +<span class="sourceLineNo">116</span><a name="line.116"></a> +<span class="sourceLineNo">117</span> public static byte[] submitAndWaitProcedure(ProcedureExecutor<MasterProcedureEnv> procExec,<a name="line.117"></a> +<span class="sourceLineNo">118</span> final Procedure proc) throws IOException {<a name="line.118"></a> +<span class="sourceLineNo">119</span> if (proc.isInitializing()) {<a name="line.119"></a> +<span class="sourceLineNo">120</span> procExec.submitProcedure(proc);<a name="line.120"></a> +<span class="sourceLineNo">121</span> }<a name="line.121"></a> +<span class="sourceLineNo">122</span> return waitForProcedureToCompleteIOE(procExec, proc.getProcId(), Long.MAX_VALUE);<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> public static byte[] waitForProcedureToCompleteIOE(<a name="line.125"></a> +<span class="sourceLineNo">126</span> final ProcedureExecutor<MasterProcedureEnv> procExec, final long procId, final long timeout)<a name="line.126"></a> +<span class="sourceLineNo">127</span> throws IOException {<a name="line.127"></a> +<span class="sourceLineNo">128</span> try {<a name="line.128"></a> +<span class="sourceLineNo">129</span> return waitForProcedureToComplete(procExec, procId, timeout);<a name="line.129"></a> +<span class="sourceLineNo">130</span> } catch (IOException e) {<a name="line.130"></a> +<span class="sourceLineNo">131</span> throw e;<a name="line.131"></a> +<span class="sourceLineNo">132</span> } catch (Exception e) {<a name="line.132"></a> +<span class="sourceLineNo">133</span> throw new IOException(e);<a name="line.133"></a> +<span class="sourceLineNo">134</span> }<a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span><a name="line.136"></a> +<span class="sourceLineNo">137</span> public static byte[] waitForProcedureToComplete(<a name="line.137"></a> +<span class="sourceLineNo">138</span> final ProcedureExecutor<MasterProcedureEnv> procExec, final long procId, final long timeout)<a name="line.138"></a> +<span class="sourceLineNo">139</span> throws IOException {<a name="line.139"></a> +<span class="sourceLineNo">140</span> waitFor(procExec.getEnvironment(), "pid=" + procId,<a name="line.140"></a> +<span class="sourceLineNo">141</span> new ProcedureSyncWait.Predicate<Boolean>() {<a name="line.141"></a> +<span class="sourceLineNo">142</span> @Override<a name="line.142"></a> +<span class="sourceLineNo">143</span> public Boolean evaluate() throws IOException {<a name="line.143"></a> +<span class="sourceLineNo">144</span> return !procExec.isRunning() || procExec.isFinished(procId);<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<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><a name="line.148"></a> +<span class="sourceLineNo">149</span> Procedure result = procExec.getResult(procId);<a name="line.149"></a> +<span class="sourceLineNo">150</span> if (result != null) {<a name="line.150"></a> +<span class="sourceLineNo">151</span> if (result.hasException()) {<a name="line.151"></a> +<span class="sourceLineNo">152</span> // If the procedure fails, we should always have an exception captured. Throw it.<a name="line.152"></a> +<span class="sourceLineNo">153</span> throw result.getException().unwrapRemoteIOException();<a name="line.153"></a> +<span class="sourceLineNo">154</span> }<a name="line.154"></a> +<span class="sourceLineNo">155</span> return result.getResult();<a name="line.155"></a> +<span class="sourceLineNo">156</span> } else {<a name="line.156"></a> +<span class="sourceLineNo">157</span> if (procExec.isRunning()) {<a name="line.157"></a> +<span class="sourceLineNo">158</span> throw new IOException("pid= " + procId + "not found");<a name="line.158"></a> +<span class="sourceLineNo">159</span> } else {<a name="line.159"></a> +<span class="sourceLineNo">160</span> throw new IOException("The Master is Aborting");<a name="line.160"></a> +<span class="sourceLineNo">161</span> }<a name="line.161"></a> +<span class="sourceLineNo">162</span> }<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> public static <T> T waitFor(MasterProcedureEnv env, String purpose, Predicate<T> predicate)<a name="line.165"></a> +<span class="sourceLineNo">166</span> throws IOException {<a name="line.166"></a> +<span class="sourceLineNo">167</span> final Configuration conf = env.getMasterConfiguration();<a name="line.167"></a> +<span class="sourceLineNo">168</span> final long waitTime = conf.getLong("hbase.master.wait.on.region", 5 * 60 * 1000);<a name="line.168"></a> +<span class="sourceLineNo">169</span> final long waitingTimeForEvents = conf.getInt("hbase.master.event.waiting.time", 1000);<a name="line.169"></a> +<span class="sourceLineNo">170</span> return waitFor(env, waitTime, waitingTimeForEvents, purpose, predicate);<a name="line.170"></a> +<span class="sourceLineNo">171</span> }<a name="line.171"></a> +<span class="sourceLineNo">172</span><a name="line.172"></a> +<span class="sourceLineNo">173</span> public static <T> T waitFor(MasterProcedureEnv env, long waitTime, long waitingTimeForEvents,<a name="line.173"></a> +<span class="sourceLineNo">174</span> String purpose, Predicate<T> predicate) throws IOException {<a name="line.174"></a> +<span class="sourceLineNo">175</span> final long done = EnvironmentEdgeManager.currentTime() + waitTime;<a name="line.175"></a> +<span class="sourceLineNo">176</span> boolean logged = false;<a name="line.176"></a> +<span class="sourceLineNo">177</span> do {<a name="line.177"></a> +<span class="sourceLineNo">178</span> T result = predicate.evaluate();<a name="line.178"></a> +<span class="sourceLineNo">179</span> if (result != null && !result.equals(Boolean.FALSE)) {<a name="line.179"></a> +<span class="sourceLineNo">180</span> return result;<a name="line.180"></a> +<span class="sourceLineNo">181</span> }<a name="line.181"></a> +<span class="sourceLineNo">182</span> try {<a name="line.182"></a> +<span class="sourceLineNo">183</span> Thread.sleep(waitingTimeForEvents);<a name="line.183"></a> +<span class="sourceLineNo">184</span> } catch (InterruptedException e) {<a name="line.184"></a> +<span class="sourceLineNo">185</span> LOG.warn("Interrupted while sleeping, waiting on " + purpose);<a name="line.185"></a> +<span class="sourceLineNo">186</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<a name="line.186"></a> +<span class="sourceLineNo">187</span> }<a name="line.187"></a> +<span class="sourceLineNo">188</span> if (LOG.isTraceEnabled()) {<a name="line.188"></a> +<span class="sourceLineNo">189</span> LOG.trace("waitFor " + purpose);<a name="line.189"></a> +<span class="sourceLineNo">190</span> } else {<a name="line.190"></a> +<span class="sourceLineNo">191</span> if (!logged) LOG.debug("waitFor " + purpose);<a name="line.191"></a> +<span class="sourceLineNo">192</span> }<a name="line.192"></a> +<span class="sourceLineNo">193</span> logged = true;<a name="line.193"></a> +<span class="sourceLineNo">194</span> } while (EnvironmentEdgeManager.currentTime() < done && env.isRunning());<a name="line.194"></a> +<span class="sourceLineNo">195</span><a name="line.195"></a> +<span class="sourceLineNo">196</span> throw new TimeoutIOException("Timed out while waiting on " + purpose);<a name="line.196"></a> +<span class="sourceLineNo">197</span> }<a name="line.197"></a> +<span class="sourceLineNo">198</span><a name="line.198"></a> +<span class="sourceLineNo">199</span> protected static void waitMetaRegions(final MasterProcedureEnv env) throws IOException {<a name="line.199"></a> +<span class="sourceLineNo">200</span> int timeout = env.getMasterConfiguration().getInt("hbase.client.catalog.timeout", 10000);<a name="line.200"></a> +<span class="sourceLineNo">201</span> try {<a name="line.201"></a> +<span class="sourceLineNo">202</span> if (env.getMasterServices().getMetaTableLocator().waitMetaRegionLocation(<a name="line.202"></a> +<span class="sourceLineNo">203</span> env.getMasterServices().getZooKeeper(), timeout) == null) {<a name="line.203"></a> +<span class="sourceLineNo">204</span> throw new NotAllMetaRegionsOnlineException();<a name="line.204"></a> +<span class="sourceLineNo">205</span> }<a name="line.205"></a> +<span class="sourceLineNo">206</span> } catch (InterruptedException e) {<a name="line.206"></a> +<span class="sourceLineNo">207</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<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><a name="line.210"></a> +<span class="sourceLineNo">211</span> protected static void waitRegionInTransition(final MasterProcedureEnv env,<a name="line.211"></a> +<span class="sourceLineNo">212</span> final List<HRegionInfo> regions) throws IOException, CoordinatedStateException {<a name="line.212"></a> +<span class="sourceLineNo">213</span> final RegionStates states = env.getAssignmentManager().getRegionStates();<a name="line.213"></a> +<span class="sourceLineNo">214</span> for (final HRegionInfo region : regions) {<a name="line.214"></a> +<span class="sourceLineNo">215</span> ProcedureSyncWait.waitFor(env, "regions " + region.getRegionNameAsString() + " in transition",<a name="line.215"></a> +<span class="sourceLineNo">216</span> new ProcedureSyncWait.Predicate<Boolean>() {<a name="line.216"></a> +<span class="sourceLineNo">217</span> @Override<a name="line.217"></a> +<span class="sourceLineNo">218</span> public Boolean evaluate() throws IOException {<a name="line.218"></a> +<span class="sourceLineNo">219</span> return !states.isRegionInTransition(region);<a name="line.219"></a> +<span class="sourceLineNo">220</span> }<a name="line.220"></a> +<span class="sourceLineNo">221</span> });<a name="line.221"></a> +<span class="sourceLineNo">222</span> }<a name="line.222"></a> +<span class="sourceLineNo">223</span> }<a name="line.223"></a> +<span class="sourceLineNo">224</span><a name="line.224"></a> +<span class="sourceLineNo">225</span> protected static MasterQuotaManager getMasterQuotaManager(final MasterProcedureEnv env)<a name="line.225"></a> +<span class="sourceLineNo">226</span> throws IOException {<a name="line.226"></a> +<span class="sourceLineNo">227</span> return ProcedureSyncWait.waitFor(env, "quota manager to be available",<a name="line.227"></a> +<span class="sourceLineNo">228</span> new ProcedureSyncWait.Predicate<MasterQuotaManager>() {<a name="line.228"></a> +<span class="sourceLineNo">229</span> @Override<a name="line.229"></a> +<span class="sourceLineNo">230</span> public MasterQuotaManager evaluate() throws IOException {<a name="line.230"></a> +<span class="sourceLineNo">231</span> return env.getMasterServices().getMasterQuotaManager();<a name="line.231"></a> +<span class="sourceLineNo">232</span> }<a name="line.232"></a> +<span class="sourceLineNo">233</span> });<a name="line.233"></a> +<span class="sourceLineNo">234</span> }<a name="line.234"></a> +<span class="sourceLineNo">235</span>}<a name="line.235"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2d5075d7/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.ProcedureFuture.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.ProcedureFuture.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.ProcedureFuture.html index 7af3762..9837a0e 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.ProcedureFuture.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.ProcedureFuture.html @@ -40,208 +40,207 @@ <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.CoordinatedStateException;<a name="line.32"></a> <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.33"></a> <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.ProcedureInfo;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.master.assignment.RegionStates;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.quotas.MasterQuotaManager;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.43"></a> -<span class="sourceLineNo">044</span><a name="line.44"></a> -<span class="sourceLineNo">045</span>/**<a name="line.45"></a> -<span class="sourceLineNo">046</span> * Helper to synchronously wait on conditions.<a name="line.46"></a> -<span class="sourceLineNo">047</span> * This will be removed in the future (mainly when the AssignmentManager will be<a name="line.47"></a> -<span class="sourceLineNo">048</span> * replaced with a Procedure version) by using ProcedureYieldException,<a name="line.48"></a> -<span class="sourceLineNo">049</span> * and the queue will handle waiting and scheduling based on events.<a name="line.49"></a> -<span class="sourceLineNo">050</span> */<a name="line.50"></a> -<span class="sourceLineNo">051</span>@InterfaceAudience.Private<a name="line.51"></a> -<span class="sourceLineNo">052</span>@InterfaceStability.Evolving<a name="line.52"></a> -<span class="sourceLineNo">053</span>public final class ProcedureSyncWait {<a name="line.53"></a> -<span class="sourceLineNo">054</span> private static final Log LOG = LogFactory.getLog(ProcedureSyncWait.class);<a name="line.54"></a> -<span class="sourceLineNo">055</span><a name="line.55"></a> -<span class="sourceLineNo">056</span> private ProcedureSyncWait() {}<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 interface Predicate<T> {<a name="line.59"></a> -<span class="sourceLineNo">060</span> T evaluate() throws IOException;<a name="line.60"></a> -<span class="sourceLineNo">061</span> }<a name="line.61"></a> -<span class="sourceLineNo">062</span><a name="line.62"></a> -<span class="sourceLineNo">063</span> private static class ProcedureFuture implements Future<byte[]> {<a name="line.63"></a> -<span class="sourceLineNo">064</span> private final ProcedureExecutor<MasterProcedureEnv> procExec;<a name="line.64"></a> -<span class="sourceLineNo">065</span> private final long procId;<a name="line.65"></a> -<span class="sourceLineNo">066</span><a name="line.66"></a> -<span class="sourceLineNo">067</span> private boolean hasResult = false;<a name="line.67"></a> -<span class="sourceLineNo">068</span> private byte[] result = null;<a name="line.68"></a> -<span class="sourceLineNo">069</span><a name="line.69"></a> -<span class="sourceLineNo">070</span> public ProcedureFuture(ProcedureExecutor<MasterProcedureEnv> procExec, long procId) {<a name="line.70"></a> -<span class="sourceLineNo">071</span> this.procExec = procExec;<a name="line.71"></a> -<span class="sourceLineNo">072</span> this.procId = procId;<a name="line.72"></a> -<span class="sourceLineNo">073</span> }<a name="line.73"></a> -<span class="sourceLineNo">074</span><a name="line.74"></a> -<span class="sourceLineNo">075</span> @Override<a name="line.75"></a> -<span class="sourceLineNo">076</span> public boolean cancel(boolean mayInterruptIfRunning) { return false; }<a name="line.76"></a> -<span class="sourceLineNo">077</span><a name="line.77"></a> -<span class="sourceLineNo">078</span> @Override<a name="line.78"></a> -<span class="sourceLineNo">079</span> public boolean isCancelled() { return false; }<a name="line.79"></a> -<span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span> @Override<a name="line.81"></a> -<span class="sourceLineNo">082</span> public boolean isDone() { return hasResult; }<a name="line.82"></a> -<span class="sourceLineNo">083</span><a name="line.83"></a> -<span class="sourceLineNo">084</span> @Override<a name="line.84"></a> -<span class="sourceLineNo">085</span> public byte[] get() throws InterruptedException, ExecutionException {<a name="line.85"></a> -<span class="sourceLineNo">086</span> if (hasResult) return result;<a name="line.86"></a> -<span class="sourceLineNo">087</span> try {<a name="line.87"></a> -<span class="sourceLineNo">088</span> return waitForProcedureToComplete(procExec, procId, Long.MAX_VALUE);<a name="line.88"></a> -<span class="sourceLineNo">089</span> } catch (Exception e) {<a name="line.89"></a> -<span class="sourceLineNo">090</span> throw new ExecutionException(e);<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> @Override<a name="line.94"></a> -<span class="sourceLineNo">095</span> public byte[] get(long timeout, TimeUnit unit)<a name="line.95"></a> -<span class="sourceLineNo">096</span> throws InterruptedException, ExecutionException, TimeoutException {<a name="line.96"></a> -<span class="sourceLineNo">097</span> if (hasResult) return result;<a name="line.97"></a> -<span class="sourceLineNo">098</span> try {<a name="line.98"></a> -<span class="sourceLineNo">099</span> result = waitForProcedureToComplete(procExec, procId, unit.toMillis(timeout));<a name="line.99"></a> -<span class="sourceLineNo">100</span> hasResult = true;<a name="line.100"></a> -<span class="sourceLineNo">101</span> return result;<a name="line.101"></a> -<span class="sourceLineNo">102</span> } catch (TimeoutIOException e) {<a name="line.102"></a> -<span class="sourceLineNo">103</span> throw new TimeoutException(e.getMessage());<a name="line.103"></a> -<span class="sourceLineNo">104</span> } catch (Exception e) {<a name="line.104"></a> -<span class="sourceLineNo">105</span> throw new ExecutionException(e);<a name="line.105"></a> -<span class="sourceLineNo">106</span> }<a name="line.106"></a> -<span class="sourceLineNo">107</span> }<a name="line.107"></a> -<span class="sourceLineNo">108</span> }<a name="line.108"></a> -<span class="sourceLineNo">109</span><a name="line.109"></a> -<span class="sourceLineNo">110</span> public static Future<byte[]> submitProcedure(final ProcedureExecutor<MasterProcedureEnv> procExec,<a name="line.110"></a> -<span class="sourceLineNo">111</span> final Procedure proc) {<a name="line.111"></a> -<span class="sourceLineNo">112</span> if (proc.isInitializing()) {<a name="line.112"></a> -<span class="sourceLineNo">113</span> procExec.submitProcedure(proc);<a name="line.113"></a> -<span class="sourceLineNo">114</span> }<a name="line.114"></a> -<span class="sourceLineNo">115</span> return new ProcedureFuture(procExec, proc.getProcId());<a name="line.115"></a> -<span class="sourceLineNo">116</span> }<a name="line.116"></a> -<span class="sourceLineNo">117</span><a name="line.117"></a> -<span class="sourceLineNo">118</span> public static byte[] submitAndWaitProcedure(ProcedureExecutor<MasterProcedureEnv> procExec,<a name="line.118"></a> -<span class="sourceLineNo">119</span> final Procedure proc) throws IOException {<a name="line.119"></a> -<span class="sourceLineNo">120</span> if (proc.isInitializing()) {<a name="line.120"></a> -<span class="sourceLineNo">121</span> procExec.submitProcedure(proc);<a name="line.121"></a> -<span class="sourceLineNo">122</span> }<a name="line.122"></a> -<span class="sourceLineNo">123</span> return waitForProcedureToCompleteIOE(procExec, proc.getProcId(), Long.MAX_VALUE);<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span><a name="line.125"></a> -<span class="sourceLineNo">126</span> public static byte[] waitForProcedureToCompleteIOE(<a name="line.126"></a> -<span class="sourceLineNo">127</span> final ProcedureExecutor<MasterProcedureEnv> procExec, final long procId, final long timeout)<a name="line.127"></a> -<span class="sourceLineNo">128</span> throws IOException {<a name="line.128"></a> -<span class="sourceLineNo">129</span> try {<a name="line.129"></a> -<span class="sourceLineNo">130</span> return waitForProcedureToComplete(procExec, procId, timeout);<a name="line.130"></a> -<span class="sourceLineNo">131</span> } catch (IOException e) {<a name="line.131"></a> -<span class="sourceLineNo">132</span> throw e;<a name="line.132"></a> -<span class="sourceLineNo">133</span> } catch (Exception e) {<a name="line.133"></a> -<span class="sourceLineNo">134</span> throw new IOException(e);<a name="line.134"></a> -<span class="sourceLineNo">135</span> }<a name="line.135"></a> -<span class="sourceLineNo">136</span> }<a name="line.136"></a> -<span class="sourceLineNo">137</span><a name="line.137"></a> -<span class="sourceLineNo">138</span> public static byte[] waitForProcedureToComplete(<a name="line.138"></a> -<span class="sourceLineNo">139</span> final ProcedureExecutor<MasterProcedureEnv> procExec, final long procId, final long timeout)<a name="line.139"></a> -<span class="sourceLineNo">140</span> throws IOException {<a name="line.140"></a> -<span class="sourceLineNo">141</span> waitFor(procExec.getEnvironment(), "pid=" + procId,<a name="line.141"></a> -<span class="sourceLineNo">142</span> new ProcedureSyncWait.Predicate<Boolean>() {<a name="line.142"></a> -<span class="sourceLineNo">143</span> @Override<a name="line.143"></a> -<span class="sourceLineNo">144</span> public Boolean evaluate() throws IOException {<a name="line.144"></a> -<span class="sourceLineNo">145</span> return !procExec.isRunning() || procExec.isFinished(procId);<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> );<a name="line.148"></a> -<span class="sourceLineNo">149</span><a name="line.149"></a> -<span class="sourceLineNo">150</span> ProcedureInfo result = procExec.getResult(procId);<a name="line.150"></a> -<span class="sourceLineNo">151</span> if (result != null) {<a name="line.151"></a> -<span class="sourceLineNo">152</span> if (result.isFailed()) {<a name="line.152"></a> -<span class="sourceLineNo">153</span> // If the procedure fails, we should always have an exception captured. Throw it.<a name="line.153"></a> -<span class="sourceLineNo">154</span> throw result.getException();<a name="line.154"></a> -<span class="sourceLineNo">155</span> }<a name="line.155"></a> -<span class="sourceLineNo">156</span> return result.getResult();<a name="line.156"></a> -<span class="sourceLineNo">157</span> } else {<a name="line.157"></a> -<span class="sourceLineNo">158</span> if (procExec.isRunning()) {<a name="line.158"></a> -<span class="sourceLineNo">159</span> throw new IOException("pid= " + procId + "not found");<a name="line.159"></a> -<span class="sourceLineNo">160</span> } else {<a name="line.160"></a> -<span class="sourceLineNo">161</span> throw new IOException("The Master is Aborting");<a name="line.161"></a> -<span class="sourceLineNo">162</span> }<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> public static <T> T waitFor(MasterProcedureEnv env, String purpose, Predicate<T> predicate)<a name="line.166"></a> -<span class="sourceLineNo">167</span> throws IOException {<a name="line.167"></a> -<span class="sourceLineNo">168</span> final Configuration conf = env.getMasterConfiguration();<a name="line.168"></a> -<span class="sourceLineNo">169</span> final long waitTime = conf.getLong("hbase.master.wait.on.region", 5 * 60 * 1000);<a name="line.169"></a> -<span class="sourceLineNo">170</span> final long waitingTimeForEvents = conf.getInt("hbase.master.event.waiting.time", 1000);<a name="line.170"></a> -<span class="sourceLineNo">171</span> return waitFor(env, waitTime, waitingTimeForEvents, purpose, predicate);<a name="line.171"></a> -<span class="sourceLineNo">172</span> }<a name="line.172"></a> -<span class="sourceLineNo">173</span><a name="line.173"></a> -<span class="sourceLineNo">174</span> public static <T> T waitFor(MasterProcedureEnv env, long waitTime, long waitingTimeForEvents,<a name="line.174"></a> -<span class="sourceLineNo">175</span> String purpose, Predicate<T> predicate) throws IOException {<a name="line.175"></a> -<span class="sourceLineNo">176</span> final long done = EnvironmentEdgeManager.currentTime() + waitTime;<a name="line.176"></a> -<span class="sourceLineNo">177</span> boolean logged = false;<a name="line.177"></a> -<span class="sourceLineNo">178</span> do {<a name="line.178"></a> -<span class="sourceLineNo">179</span> T result = predicate.evaluate();<a name="line.179"></a> -<span class="sourceLineNo">180</span> if (result != null && !result.equals(Boolean.FALSE)) {<a name="line.180"></a> -<span class="sourceLineNo">181</span> return result;<a name="line.181"></a> -<span class="sourceLineNo">182</span> }<a name="line.182"></a> -<span class="sourceLineNo">183</span> try {<a name="line.183"></a> -<span class="sourceLineNo">184</span> Thread.sleep(waitingTimeForEvents);<a name="line.184"></a> -<span class="sourceLineNo">185</span> } catch (InterruptedException e) {<a name="line.185"></a> -<span class="sourceLineNo">186</span> LOG.warn("Interrupted while sleeping, waiting on " + purpose);<a name="line.186"></a> -<span class="sourceLineNo">187</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<a name="line.187"></a> -<span class="sourceLineNo">188</span> }<a name="line.188"></a> -<span class="sourceLineNo">189</span> if (LOG.isTraceEnabled()) {<a name="line.189"></a> -<span class="sourceLineNo">190</span> LOG.trace("waitFor " + purpose);<a name="line.190"></a> -<span class="sourceLineNo">191</span> } else {<a name="line.191"></a> -<span class="sourceLineNo">192</span> if (!logged) LOG.debug("waitFor " + purpose);<a name="line.192"></a> -<span class="sourceLineNo">193</span> }<a name="line.193"></a> -<span class="sourceLineNo">194</span> logged = true;<a name="line.194"></a> -<span class="sourceLineNo">195</span> } while (EnvironmentEdgeManager.currentTime() < done && env.isRunning());<a name="line.195"></a> -<span class="sourceLineNo">196</span><a name="line.196"></a> -<span class="sourceLineNo">197</span> throw new TimeoutIOException("Timed out while waiting on " + purpose);<a name="line.197"></a> -<span class="sourceLineNo">198</span> }<a name="line.198"></a> -<span class="sourceLineNo">199</span><a name="line.199"></a> -<span class="sourceLineNo">200</span> protected static void waitMetaRegions(final MasterProcedureEnv env) throws IOException {<a name="line.200"></a> -<span class="sourceLineNo">201</span> int timeout = env.getMasterConfiguration().getInt("hbase.client.catalog.timeout", 10000);<a name="line.201"></a> -<span class="sourceLineNo">202</span> try {<a name="line.202"></a> -<span class="sourceLineNo">203</span> if (env.getMasterServices().getMetaTableLocator().waitMetaRegionLocation(<a name="line.203"></a> -<span class="sourceLineNo">204</span> env.getMasterServices().getZooKeeper(), timeout) == null) {<a name="line.204"></a> -<span class="sourceLineNo">205</span> throw new NotAllMetaRegionsOnlineException();<a name="line.205"></a> -<span class="sourceLineNo">206</span> }<a name="line.206"></a> -<span class="sourceLineNo">207</span> } catch (InterruptedException e) {<a name="line.207"></a> -<span class="sourceLineNo">208</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<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><a name="line.211"></a> -<span class="sourceLineNo">212</span> protected static void waitRegionInTransition(final MasterProcedureEnv env,<a name="line.212"></a> -<span class="sourceLineNo">213</span> final List<HRegionInfo> regions) throws IOException, CoordinatedStateException {<a name="line.213"></a> -<span class="sourceLineNo">214</span> final RegionStates states = env.getAssignmentManager().getRegionStates();<a name="line.214"></a> -<span class="sourceLineNo">215</span> for (final HRegionInfo region : regions) {<a name="line.215"></a> -<span class="sourceLineNo">216</span> ProcedureSyncWait.waitFor(env, "regions " + region.getRegionNameAsString() + " in transition",<a name="line.216"></a> -<span class="sourceLineNo">217</span> new ProcedureSyncWait.Predicate<Boolean>() {<a name="line.217"></a> -<span class="sourceLineNo">218</span> @Override<a name="line.218"></a> -<span class="sourceLineNo">219</span> public Boolean evaluate() throws IOException {<a name="line.219"></a> -<span class="sourceLineNo">220</span> return !states.isRegionInTransition(region);<a name="line.220"></a> -<span class="sourceLineNo">221</span> }<a name="line.221"></a> -<span class="sourceLineNo">222</span> });<a name="line.222"></a> -<span class="sourceLineNo">223</span> }<a name="line.223"></a> -<span class="sourceLineNo">224</span> }<a name="line.224"></a> -<span class="sourceLineNo">225</span><a name="line.225"></a> -<span class="sourceLineNo">226</span> protected static MasterQuotaManager getMasterQuotaManager(final MasterProcedureEnv env)<a name="line.226"></a> -<span class="sourceLineNo">227</span> throws IOException {<a name="line.227"></a> -<span class="sourceLineNo">228</span> return ProcedureSyncWait.waitFor(env, "quota manager to be available",<a name="line.228"></a> -<span class="sourceLineNo">229</span> new ProcedureSyncWait.Predicate<MasterQuotaManager>() {<a name="line.229"></a> -<span class="sourceLineNo">230</span> @Override<a name="line.230"></a> -<span class="sourceLineNo">231</span> public MasterQuotaManager evaluate() throws IOException {<a name="line.231"></a> -<span class="sourceLineNo">232</span> return env.getMasterServices().getMasterQuotaManager();<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> }<a name="line.235"></a> -<span class="sourceLineNo">236</span>}<a name="line.236"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.master.assignment.RegionStates;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.quotas.MasterQuotaManager;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.42"></a> +<span class="sourceLineNo">043</span><a name="line.43"></a> +<span class="sourceLineNo">044</span>/**<a name="line.44"></a> +<span class="sourceLineNo">045</span> * Helper to synchronously wait on conditions.<a name="line.45"></a> +<span class="sourceLineNo">046</span> * This will be removed in the future (mainly when the AssignmentManager will be<a name="line.46"></a> +<span class="sourceLineNo">047</span> * replaced with a Procedure version) by using ProcedureYieldException,<a name="line.47"></a> +<span class="sourceLineNo">048</span> * and the queue will handle waiting and scheduling based on events.<a name="line.48"></a> +<span class="sourceLineNo">049</span> */<a name="line.49"></a> +<span class="sourceLineNo">050</span>@InterfaceAudience.Private<a name="line.50"></a> +<span class="sourceLineNo">051</span>@InterfaceStability.Evolving<a name="line.51"></a> +<span class="sourceLineNo">052</span>public final class ProcedureSyncWait {<a name="line.52"></a> +<span class="sourceLineNo">053</span> private static final Log LOG = LogFactory.getLog(ProcedureSyncWait.class);<a name="line.53"></a> +<span class="sourceLineNo">054</span><a name="line.54"></a> +<span class="sourceLineNo">055</span> private ProcedureSyncWait() {}<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 interface Predicate<T> {<a name="line.58"></a> +<span class="sourceLineNo">059</span> T evaluate() throws IOException;<a name="line.59"></a> +<span class="sourceLineNo">060</span> }<a name="line.60"></a> +<span class="sourceLineNo">061</span><a name="line.61"></a> +<span class="sourceLineNo">062</span> private static class ProcedureFuture implements Future<byte[]> {<a name="line.62"></a> +<span class="sourceLineNo">063</span> private final ProcedureExecutor<MasterProcedureEnv> procExec;<a name="line.63"></a> +<span class="sourceLineNo">064</span> private final long procId;<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> private boolean hasResult = false;<a name="line.66"></a> +<span class="sourceLineNo">067</span> private byte[] result = null;<a name="line.67"></a> +<span class="sourceLineNo">068</span><a name="line.68"></a> +<span class="sourceLineNo">069</span> public ProcedureFuture(ProcedureExecutor<MasterProcedureEnv> procExec, long procId) {<a name="line.69"></a> +<span class="sourceLineNo">070</span> this.procExec = procExec;<a name="line.70"></a> +<span class="sourceLineNo">071</span> this.procId = procId;<a name="line.71"></a> +<span class="sourceLineNo">072</span> }<a name="line.72"></a> +<span class="sourceLineNo">073</span><a name="line.73"></a> +<span class="sourceLineNo">074</span> @Override<a name="line.74"></a> +<span class="sourceLineNo">075</span> public boolean cancel(boolean mayInterruptIfRunning) { return false; }<a name="line.75"></a> +<span class="sourceLineNo">076</span><a name="line.76"></a> +<span class="sourceLineNo">077</span> @Override<a name="line.77"></a> +<span class="sourceLineNo">078</span> public boolean isCancelled() { return false; }<a name="line.78"></a> +<span class="sourceLineNo">079</span><a name="line.79"></a> +<span class="sourceLineNo">080</span> @Override<a name="line.80"></a> +<span class="sourceLineNo">081</span> public boolean isDone() { return hasResult; }<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> @Override<a name="line.83"></a> +<span class="sourceLineNo">084</span> public byte[] get() throws InterruptedException, ExecutionException {<a name="line.84"></a> +<span class="sourceLineNo">085</span> if (hasResult) return result;<a name="line.85"></a> +<span class="sourceLineNo">086</span> try {<a name="line.86"></a> +<span class="sourceLineNo">087</span> return waitForProcedureToComplete(procExec, procId, Long.MAX_VALUE);<a name="line.87"></a> +<span class="sourceLineNo">088</span> } catch (Exception e) {<a name="line.88"></a> +<span class="sourceLineNo">089</span> throw new ExecutionException(e);<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> @Override<a name="line.93"></a> +<span class="sourceLineNo">094</span> public byte[] get(long timeout, TimeUnit unit)<a name="line.94"></a> +<span class="sourceLineNo">095</span> throws InterruptedException, ExecutionException, TimeoutException {<a name="line.95"></a> +<span class="sourceLineNo">096</span> if (hasResult) return result;<a name="line.96"></a> +<span class="sourceLineNo">097</span> try {<a name="line.97"></a> +<span class="sourceLineNo">098</span> result = waitForProcedureToComplete(procExec, procId, unit.toMillis(timeout));<a name="line.98"></a> +<span class="sourceLineNo">099</span> hasResult = true;<a name="line.99"></a> +<span class="sourceLineNo">100</span> return result;<a name="line.100"></a> +<span class="sourceLineNo">101</span> } catch (TimeoutIOException e) {<a name="line.101"></a> +<span class="sourceLineNo">102</span> throw new TimeoutException(e.getMessage());<a name="line.102"></a> +<span class="sourceLineNo">103</span> } catch (Exception e) {<a name="line.103"></a> +<span class="sourceLineNo">104</span> throw new ExecutionException(e);<a name="line.104"></a> +<span class="sourceLineNo">105</span> }<a name="line.105"></a> +<span class="sourceLineNo">106</span> }<a name="line.106"></a> +<span class="sourceLineNo">107</span> }<a name="line.107"></a> +<span class="sourceLineNo">108</span><a name="line.108"></a> +<span class="sourceLineNo">109</span> public static Future<byte[]> submitProcedure(final ProcedureExecutor<MasterProcedureEnv> procExec,<a name="line.109"></a> +<span class="sourceLineNo">110</span> final Procedure proc) {<a name="line.110"></a> +<span class="sourceLineNo">111</span> if (proc.isInitializing()) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> procExec.submitProcedure(proc);<a name="line.112"></a> +<span class="sourceLineNo">113</span> }<a name="line.113"></a> +<span class="sourceLineNo">114</span> return new ProcedureFuture(procExec, proc.getProcId());<a name="line.114"></a> +<span class="sourceLineNo">115</span> }<a name="line.115"></a> +<span class="sourceLineNo">116</span><a name="line.116"></a> +<span class="sourceLineNo">117</span> public static byte[] submitAndWaitProcedure(ProcedureExecutor<MasterProcedureEnv> procExec,<a name="line.117"></a> +<span class="sourceLineNo">118</span> final Procedure proc) throws IOException {<a name="line.118"></a> +<span class="sourceLineNo">119</span> if (proc.isInitializing()) {<a name="line.119"></a> +<span class="sourceLineNo">120</span> procExec.submitProcedure(proc);<a name="line.120"></a> +<span class="sourceLineNo">121</span> }<a name="line.121"></a> +<span class="sourceLineNo">122</span> return waitForProcedureToCompleteIOE(procExec, proc.getProcId(), Long.MAX_VALUE);<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> public static byte[] waitForProcedureToCompleteIOE(<a name="line.125"></a> +<span class="sourceLineNo">126</span> final ProcedureExecutor<MasterProcedureEnv> procExec, final long procId, final long timeout)<a name="line.126"></a> +<span class="sourceLineNo">127</span> throws IOException {<a name="line.127"></a> +<span class="sourceLineNo">128</span> try {<a name="line.128"></a> +<span class="sourceLineNo">129</span> return waitForProcedureToComplete(procExec, procId, timeout);<a name="line.129"></a> +<span class="sourceLineNo">130</span> } catch (IOException e) {<a name="line.130"></a> +<span class="sourceLineNo">131</span> throw e;<a name="line.131"></a> +<span class="sourceLineNo">132</span> } catch (Exception e) {<a name="line.132"></a> +<span class="sourceLineNo">133</span> throw new IOException(e);<a name="line.133"></a> +<span class="sourceLineNo">134</span> }<a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span><a name="line.136"></a> +<span class="sourceLineNo">137</span> public static byte[] waitForProcedureToComplete(<a name="line.137"></a> +<span class="sourceLineNo">138</span> final ProcedureExecutor<MasterProcedureEnv> procExec, final long procId, final long timeout)<a name="line.138"></a> +<span class="sourceLineNo">139</span> throws IOException {<a name="line.139"></a> +<span class="sourceLineNo">140</span> waitFor(procExec.getEnvironment(), "pid=" + procId,<a name="line.140"></a> +<span class="sourceLineNo">141</span> new ProcedureSyncWait.Predicate<Boolean>() {<a name="line.141"></a> +<span class="sourceLineNo">142</span> @Override<a name="line.142"></a> +<span class="sourceLineNo">143</span> public Boolean evaluate() throws IOException {<a name="line.143"></a> +<span class="sourceLineNo">144</span> return !procExec.isRunning() || procExec.isFinished(procId);<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<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><a name="line.148"></a> +<span class="sourceLineNo">149</span> Procedure result = procExec.getResult(procId);<a name="line.149"></a> +<span class="sourceLineNo">150</span> if (result != null) {<a name="line.150"></a> +<span class="sourceLineNo">151</span> if (result.hasException()) {<a name="line.151"></a> +<span class="sourceLineNo">152</span> // If the procedure fails, we should always have an exception captured. Throw it.<a name="line.152"></a> +<span class="sourceLineNo">153</span> throw result.getException().unwrapRemoteIOException();<a name="line.153"></a> +<span class="sourceLineNo">154</span> }<a name="line.154"></a> +<span class="sourceLineNo">155</span> return result.getResult();<a name="line.155"></a> +<span class="sourceLineNo">156</span> } else {<a name="line.156"></a> +<span class="sourceLineNo">157</span> if (procExec.isRunning()) {<a name="line.157"></a> +<span class="sourceLineNo">158</span> throw new IOException("pid= " + procId + "not found");<a name="line.158"></a> +<span class="sourceLineNo">159</span> } else {<a name="line.159"></a> +<span class="sourceLineNo">160</span> throw new IOException("The Master is Aborting");<a name="line.160"></a> +<span class="sourceLineNo">161</span> }<a name="line.161"></a> +<span class="sourceLineNo">162</span> }<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> public static <T> T waitFor(MasterProcedureEnv env, String purpose, Predicate<T> predicate)<a name="line.165"></a> +<span class="sourceLineNo">166</span> throws IOException {<a name="line.166"></a> +<span class="sourceLineNo">167</span> final Configuration conf = env.getMasterConfiguration();<a name="line.167"></a> +<span class="sourceLineNo">168</span> final long waitTime = conf.getLong("hbase.master.wait.on.region", 5 * 60 * 1000);<a name="line.168"></a> +<span class="sourceLineNo">169</span> final long waitingTimeForEvents = conf.getInt("hbase.master.event.waiting.time", 1000);<a name="line.169"></a> +<span class="sourceLineNo">170</span> return waitFor(env, waitTime, waitingTimeForEvents, purpose, predicate);<a name="line.170"></a> +<span class="sourceLineNo">171</span> }<a name="line.171"></a> +<span class="sourceLineNo">172</span><a name="line.172"></a> +<span class="sourceLineNo">173</span> public static <T> T waitFor(MasterProcedureEnv env, long waitTime, long waitingTimeForEvents,<a name="line.173"></a> +<span class="sourceLineNo">174</span> String purpose, Predicate<T> predicate) throws IOException {<a name="line.174"></a> +<span class="sourceLineNo">175</span> final long done = EnvironmentEdgeManager.currentTime() + waitTime;<a name="line.175"></a> +<span class="sourceLineNo">176</span> boolean logged = false;<a name="line.176"></a> +<span class="sourceLineNo">177</span> do {<a name="line.177"></a> +<span class="sourceLineNo">178</span> T result = predicate.evaluate();<a name="line.178"></a> +<span class="sourceLineNo">179</span> if (result != null && !result.equals(Boolean.FALSE)) {<a name="line.179"></a> +<span class="sourceLineNo">180</span> return result;<a name="line.180"></a> +<span class="sourceLineNo">181</span> }<a name="line.181"></a> +<span class="sourceLineNo">182</span> try {<a name="line.182"></a> +<span class="sourceLineNo">183</span> Thread.sleep(waitingTimeForEvents);<a name="line.183"></a> +<span class="sourceLineNo">184</span> } catch (InterruptedException e) {<a name="line.184"></a> +<span class="sourceLineNo">185</span> LOG.warn("Interrupted while sleeping, waiting on " + purpose);<a name="line.185"></a> +<span class="sourceLineNo">186</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<a name="line.186"></a> +<span class="sourceLineNo">187</span> }<a name="line.187"></a> +<span class="sourceLineNo">188</span> if (LOG.isTraceEnabled()) {<a name="line.188"></a> +<span class="sourceLineNo">189</span> LOG.trace("waitFor " + purpose);<a name="line.189"></a> +<span class="sourceLineNo">190</span> } else {<a name="line.190"></a> +<span class="sourceLineNo">191</span> if (!logged) LOG.debug("waitFor " + purpose);<a name="line.191"></a> +<span class="sourceLineNo">192</span> }<a name="line.192"></a> +<span class="sourceLineNo">193</span> logged = true;<a name="line.193"></a> +<span class="sourceLineNo">194</span> } while (EnvironmentEdgeManager.currentTime() < done && env.isRunning());<a name="line.194"></a> +<span class="sourceLineNo">195</span><a name="line.195"></a> +<span class="sourceLineNo">196</span> throw new TimeoutIOException("Timed out while waiting on " + purpose);<a name="line.196"></a> +<span class="sourceLineNo">197</span> }<a name="line.197"></a> +<span class="sourceLineNo">198</span><a name="line.198"></a> +<span class="sourceLineNo">199</span> protected static void waitMetaRegions(final MasterProcedureEnv env) throws IOException {<a name="line.199"></a> +<span class="sourceLineNo">200</span> int timeout = env.getMasterConfiguration().getInt("hbase.client.catalog.timeout", 10000);<a name="line.200"></a> +<span class="sourceLineNo">201</span> try {<a name="line.201"></a> +<span class="sourceLineNo">202</span> if (env.getMasterServices().getMetaTableLocator().waitMetaRegionLocation(<a name="line.202"></a> +<span class="sourceLineNo">203</span> env.getMasterServices().getZooKeeper(), timeout) == null) {<a name="line.203"></a> +<span class="sourceLineNo">204</span> throw new NotAllMetaRegionsOnlineException();<a name="line.204"></a> +<span class="sourceLineNo">205</span> }<a name="line.205"></a> +<span class="sourceLineNo">206</span> } catch (InterruptedException e) {<a name="line.206"></a> +<span class="sourceLineNo">207</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<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><a name="line.210"></a> +<span class="sourceLineNo">211</span> protected static void waitRegionInTransition(final MasterProcedureEnv env,<a name="line.211"></a> +<span class="sourceLineNo">212</span> final List<HRegionInfo> regions) throws IOException, CoordinatedStateException {<a name="line.212"></a> +<span class="sourceLineNo">213</span> final RegionStates states = env.getAssignmentManager().getRegionStates();<a name="line.213"></a> +<span class="sourceLineNo">214</span> for (final HRegionInfo region : regions) {<a name="line.214"></a> +<span class="sourceLineNo">215</span> ProcedureSyncWait.waitFor(env, "regions " + region.getRegionNameAsString() + " in transition",<a name="line.215"></a> +<span class="sourceLineNo">216</span> new ProcedureSyncWait.Predicate<Boolean>() {<a name="line.216"></a> +<span class="sourceLineNo">217</span> @Override<a name="line.217"></a> +<span class="sourceLineNo">218</span> public Boolean evaluate() throws IOException {<a name="line.218"></a> +<span class="sourceLineNo">219</span> return !states.isRegionInTransition(region);<a name="line.219"></a> +<span class="sourceLineNo">220</span> }<a name="line.220"></a> +<span class="sourceLineNo">221</span> });<a name="line.221"></a> +<span class="sourceLineNo">222</span> }<a name="line.222"></a> +<span class="sourceLineNo">223</span> }<a name="line.223"></a> +<span class="sourceLineNo">224</span><a name="line.224"></a> +<span class="sourceLineNo">225</span> protected static MasterQuotaManager getMasterQuotaManager(final MasterProcedureEnv env)<a name="line.225"></a> +<span class="sourceLineNo">226</span> throws IOException {<a name="line.226"></a> +<span class="sourceLineNo">227</span> return ProcedureSyncWait.waitFor(env, "quota manager to be available",<a name="line.227"></a> +<span class="sourceLineNo">228</span> new ProcedureSyncWait.Predicate<MasterQuotaManager>() {<a name="line.228"></a> +<span class="sourceLineNo">229</span> @Override<a name="line.229"></a> +<span class="sourceLineNo">230</span> public MasterQuotaManager evaluate() throws IOException {<a name="line.230"></a> +<span class="sourceLineNo">231</span> return env.getMasterServices().getMasterQuotaManager();<a name="line.231"></a> +<span class="sourceLineNo">232</span> }<a name="line.232"></a> +<span class="sourceLineNo">233</span> });<a name="line.233"></a> +<span class="sourceLineNo">234</span> }<a name="line.234"></a> +<span class="sourceLineNo">235</span>}<a name="line.235"></a>
