http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3469cbc0/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/RemoteProcedureDispatcher.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/RemoteProcedureDispatcher.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/RemoteProcedureDispatcher.html index 594ef24..17d5c40 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/RemoteProcedureDispatcher.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/RemoteProcedureDispatcher.html @@ -170,241 +170,242 @@ <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> * Add a remote rpc. Be sure to check result for successful add.<a name="line.165"></a> +<span class="sourceLineNo">165</span> * Add a remote rpc.<a name="line.165"></a> <span class="sourceLineNo">166</span> * @param key the node identifier<a name="line.166"></a> -<span class="sourceLineNo">167</span> * @return True if we successfully added the operation.<a name="line.167"></a> -<span class="sourceLineNo">168</span> */<a name="line.168"></a> -<span class="sourceLineNo">169</span> public boolean addOperationToNode(final TRemote key, RemoteProcedure rp) {<a name="line.169"></a> +<span class="sourceLineNo">167</span> */<a name="line.167"></a> +<span class="sourceLineNo">168</span> public void addOperationToNode(final TRemote key, RemoteProcedure rp)<a name="line.168"></a> +<span class="sourceLineNo">169</span> throws NullTargetServerDispatchException, NoServerDispatchException, NoNodeDispatchException {<a name="line.169"></a> <span class="sourceLineNo">170</span> if (key == null) {<a name="line.170"></a> -<span class="sourceLineNo">171</span> // Key is remote server name. Be careful. It could have been nulled by a concurrent<a name="line.171"></a> -<span class="sourceLineNo">172</span> // ServerCrashProcedure shutting down outstanding RPC requests. See remoteCallFailed.<a name="line.172"></a> -<span class="sourceLineNo">173</span> return false;<a name="line.173"></a> -<span class="sourceLineNo">174</span> }<a name="line.174"></a> -<span class="sourceLineNo">175</span> assert key != null : "found null key for node";<a name="line.175"></a> -<span class="sourceLineNo">176</span> BufferNode node = nodeMap.get(key);<a name="line.176"></a> -<span class="sourceLineNo">177</span> if (node == null) {<a name="line.177"></a> -<span class="sourceLineNo">178</span> return false;<a name="line.178"></a> -<span class="sourceLineNo">179</span> }<a name="line.179"></a> -<span class="sourceLineNo">180</span> node.add(rp);<a name="line.180"></a> -<span class="sourceLineNo">181</span> // Check our node still in the map; could have been removed by #removeNode.<a name="line.181"></a> -<span class="sourceLineNo">182</span> return nodeMap.containsValue(node);<a name="line.182"></a> -<span class="sourceLineNo">183</span> }<a name="line.183"></a> -<span class="sourceLineNo">184</span><a name="line.184"></a> -<span class="sourceLineNo">185</span> /**<a name="line.185"></a> -<span class="sourceLineNo">186</span> * Remove a remote node<a name="line.186"></a> -<span class="sourceLineNo">187</span> * @param key the node identifier<a name="line.187"></a> -<span class="sourceLineNo">188</span> */<a name="line.188"></a> -<span class="sourceLineNo">189</span> public boolean removeNode(final TRemote key) {<a name="line.189"></a> -<span class="sourceLineNo">190</span> final BufferNode node = nodeMap.remove(key);<a name="line.190"></a> -<span class="sourceLineNo">191</span> if (node == null) return false;<a name="line.191"></a> -<span class="sourceLineNo">192</span> node.abortOperationsInQueue();<a name="line.192"></a> -<span class="sourceLineNo">193</span> return true;<a name="line.193"></a> -<span class="sourceLineNo">194</span> }<a name="line.194"></a> -<span class="sourceLineNo">195</span><a name="line.195"></a> -<span class="sourceLineNo">196</span> // ============================================================================================<a name="line.196"></a> -<span class="sourceLineNo">197</span> // Task Helpers<a name="line.197"></a> -<span class="sourceLineNo">198</span> // ============================================================================================<a name="line.198"></a> -<span class="sourceLineNo">199</span> protected Future<Void> submitTask(Callable<Void> task) {<a name="line.199"></a> -<span class="sourceLineNo">200</span> return threadPool.submit(task);<a name="line.200"></a> -<span class="sourceLineNo">201</span> }<a name="line.201"></a> -<span class="sourceLineNo">202</span><a name="line.202"></a> -<span class="sourceLineNo">203</span> protected Future<Void> submitTask(Callable<Void> task, long delay, TimeUnit unit) {<a name="line.203"></a> -<span class="sourceLineNo">204</span> final FutureTask<Void> futureTask = new FutureTask(task);<a name="line.204"></a> -<span class="sourceLineNo">205</span> timeoutExecutor.add(new DelayedTask(futureTask, delay, unit));<a name="line.205"></a> -<span class="sourceLineNo">206</span> return futureTask;<a name="line.206"></a> -<span class="sourceLineNo">207</span> }<a name="line.207"></a> -<span class="sourceLineNo">208</span><a name="line.208"></a> -<span class="sourceLineNo">209</span> protected abstract void remoteDispatch(TRemote key, Set<RemoteProcedure> operations);<a name="line.209"></a> -<span class="sourceLineNo">210</span> protected abstract void abortPendingOperations(TRemote key, Set<RemoteProcedure> operations);<a name="line.210"></a> -<span class="sourceLineNo">211</span><a name="line.211"></a> -<span class="sourceLineNo">212</span> /**<a name="line.212"></a> -<span class="sourceLineNo">213</span> * Data structure with reference to remote operation.<a name="line.213"></a> -<span class="sourceLineNo">214</span> */<a name="line.214"></a> -<span class="sourceLineNo">215</span> public static abstract class RemoteOperation {<a name="line.215"></a> -<span class="sourceLineNo">216</span> private final RemoteProcedure remoteProcedure;<a name="line.216"></a> -<span class="sourceLineNo">217</span><a name="line.217"></a> -<span class="sourceLineNo">218</span> protected RemoteOperation(final RemoteProcedure remoteProcedure) {<a name="line.218"></a> -<span class="sourceLineNo">219</span> this.remoteProcedure = remoteProcedure;<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> public RemoteProcedure getRemoteProcedure() {<a name="line.222"></a> -<span class="sourceLineNo">223</span> return remoteProcedure;<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><a name="line.226"></a> -<span class="sourceLineNo">227</span> /**<a name="line.227"></a> -<span class="sourceLineNo">228</span> * Remote procedure reference.<a name="line.228"></a> -<span class="sourceLineNo">229</span> */<a name="line.229"></a> -<span class="sourceLineNo">230</span> public interface RemoteProcedure<TEnv, TRemote> {<a name="line.230"></a> -<span class="sourceLineNo">231</span> /**<a name="line.231"></a> -<span class="sourceLineNo">232</span> * For building the remote operation.<a name="line.232"></a> -<span class="sourceLineNo">233</span> */<a name="line.233"></a> -<span class="sourceLineNo">234</span> RemoteOperation remoteCallBuild(TEnv env, TRemote remote);<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">237</span> * Called when the executeProcedure call is failed.<a name="line.237"></a> -<span class="sourceLineNo">238</span> */<a name="line.238"></a> -<span class="sourceLineNo">239</span> void remoteCallFailed(TEnv env, TRemote remote, IOException exception);<a name="line.239"></a> -<span class="sourceLineNo">240</span><a name="line.240"></a> -<span class="sourceLineNo">241</span> /**<a name="line.241"></a> -<span class="sourceLineNo">242</span> * Called when RS tells the remote procedure is succeeded through the<a name="line.242"></a> -<span class="sourceLineNo">243</span> * {@code reportProcedureDone} method.<a name="line.243"></a> -<span class="sourceLineNo">244</span> */<a name="line.244"></a> -<span class="sourceLineNo">245</span> void remoteOperationCompleted(TEnv env);<a name="line.245"></a> -<span class="sourceLineNo">246</span><a name="line.246"></a> -<span class="sourceLineNo">247</span> /**<a name="line.247"></a> -<span class="sourceLineNo">248</span> * Called when RS tells the remote procedure is failed through the {@code reportProcedureDone}<a name="line.248"></a> -<span class="sourceLineNo">249</span> * method.<a name="line.249"></a> -<span class="sourceLineNo">250</span> */<a name="line.250"></a> -<span class="sourceLineNo">251</span> void remoteOperationFailed(TEnv env, RemoteProcedureException error);<a name="line.251"></a> -<span class="sourceLineNo">252</span> }<a name="line.252"></a> -<span class="sourceLineNo">253</span><a name="line.253"></a> -<span class="sourceLineNo">254</span> /**<a name="line.254"></a> -<span class="sourceLineNo">255</span> * Account of what procedures are running on remote node.<a name="line.255"></a> -<span class="sourceLineNo">256</span> * @param <TEnv><a name="line.256"></a> -<span class="sourceLineNo">257</span> * @param <TRemote><a name="line.257"></a> -<span class="sourceLineNo">258</span> */<a name="line.258"></a> -<span class="sourceLineNo">259</span> public interface RemoteNode<TEnv, TRemote> {<a name="line.259"></a> -<span class="sourceLineNo">260</span> TRemote getKey();<a name="line.260"></a> -<span class="sourceLineNo">261</span> void add(RemoteProcedure<TEnv, TRemote> operation);<a name="line.261"></a> -<span class="sourceLineNo">262</span> void dispatch();<a name="line.262"></a> -<span class="sourceLineNo">263</span> }<a name="line.263"></a> -<span class="sourceLineNo">264</span><a name="line.264"></a> -<span class="sourceLineNo">265</span> protected ArrayListMultimap<Class<?>, RemoteOperation> buildAndGroupRequestByType(final TEnv env,<a name="line.265"></a> -<span class="sourceLineNo">266</span> final TRemote remote, final Set<RemoteProcedure> remoteProcedures) {<a name="line.266"></a> -<span class="sourceLineNo">267</span> final ArrayListMultimap<Class<?>, RemoteOperation> requestByType = ArrayListMultimap.create();<a name="line.267"></a> -<span class="sourceLineNo">268</span> for (RemoteProcedure proc: remoteProcedures) {<a name="line.268"></a> -<span class="sourceLineNo">269</span> RemoteOperation operation = proc.remoteCallBuild(env, remote);<a name="line.269"></a> -<span class="sourceLineNo">270</span> requestByType.put(operation.getClass(), 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class="sourceLineNo">281</span> // Timeout Helpers<a name="line.281"></a> -<span class="sourceLineNo">282</span> // ============================================================================================<a name="line.282"></a> -<span class="sourceLineNo">283</span> private final class TimeoutExecutorThread extends Thread {<a name="line.283"></a> -<span class="sourceLineNo">284</span> private final DelayQueue<DelayedWithTimeout> queue = new DelayQueue<DelayedWithTimeout>();<a name="line.284"></a> -<span class="sourceLineNo">285</span><a name="line.285"></a> -<span class="sourceLineNo">286</span> public TimeoutExecutorThread() {<a name="line.286"></a> -<span class="sourceLineNo">287</span> super("ProcedureDispatcherTimeoutThread");<a name="line.287"></a> -<span class="sourceLineNo">288</span> }<a name="line.288"></a> -<span class="sourceLineNo">289</span><a name="line.289"></a> -<span class="sourceLineNo">290</span> @Override<a name="line.290"></a> -<span class="sourceLineNo">291</span> public void run() {<a name="line.291"></a> -<span class="sourceLineNo">292</span> while (running.get()) {<a name="line.292"></a> -<span class="sourceLineNo">293</span> final DelayedWithTimeout task = DelayedUtil.takeWithoutInterrupt(queue);<a name="line.293"></a> -<span class="sourceLineNo">294</span> if (task == null || task == DelayedUtil.DELAYED_POISON) {<a name="line.294"></a> -<span class="sourceLineNo">295</span> // the executor may be shutting down, and the task is just the shutdown request<a name="line.295"></a> -<span class="sourceLineNo">296</span> continue;<a name="line.296"></a> -<span class="sourceLineNo">297</span> }<a name="line.297"></a> -<span class="sourceLineNo">298</span> if (task instanceof DelayedTask) {<a name="line.298"></a> -<span class="sourceLineNo">299</span> threadPool.execute(((DelayedTask)task).getObject());<a name="line.299"></a> -<span class="sourceLineNo">300</span> } else {<a name="line.300"></a> -<span class="sourceLineNo">301</span> ((BufferNode)task).dispatch();<a name="line.301"></a> -<span class="sourceLineNo">302</span> }<a name="line.302"></a> -<span class="sourceLineNo">303</span> }<a name="line.303"></a> -<span class="sourceLineNo">304</span> }<a name="line.304"></a> -<span class="sourceLineNo">305</span><a name="line.305"></a> -<span class="sourceLineNo">306</span> public void add(final DelayedWithTimeout delayed) {<a name="line.306"></a> -<span class="sourceLineNo">307</span> queue.add(delayed);<a name="line.307"></a> -<span class="sourceLineNo">308</span> }<a name="line.308"></a> -<span class="sourceLineNo">309</span><a name="line.309"></a> -<span class="sourceLineNo">310</span> public void remove(final DelayedWithTimeout delayed) {<a name="line.310"></a> -<span class="sourceLineNo">311</span> queue.remove(delayed);<a name="line.311"></a> -<span class="sourceLineNo">312</span> }<a name="line.312"></a> -<span class="sourceLineNo">313</span><a name="line.313"></a> -<span class="sourceLineNo">314</span> public void sendStopSignal() {<a name="line.314"></a> -<span class="sourceLineNo">315</span> queue.add(DelayedUtil.DELAYED_POISON);<a name="line.315"></a> -<span class="sourceLineNo">316</span> }<a name="line.316"></a> -<span class="sourceLineNo">317</span><a name="line.317"></a> -<span class="sourceLineNo">318</span> public void awaitTermination() {<a name="line.318"></a> -<span class="sourceLineNo">319</span> try {<a name="line.319"></a> -<span class="sourceLineNo">320</span> final long startTime = EnvironmentEdgeManager.currentTime();<a name="line.320"></a> -<span class="sourceLineNo">321</span> for (int i = 0; isAlive(); ++i) {<a name="line.321"></a> -<span class="sourceLineNo">322</span> sendStopSignal();<a name="line.322"></a> -<span class="sourceLineNo">323</span> join(250);<a name="line.323"></a> -<span class="sourceLineNo">324</span> if (i > 0 && (i % 8) == 0) {<a name="line.324"></a> -<span class="sourceLineNo">325</span> LOG.warn("Waiting termination of thread " + getName() + ", " +<a name="line.325"></a> -<span class="sourceLineNo">326</span> StringUtils.humanTimeDiff(EnvironmentEdgeManager.currentTime() - startTime));<a name="line.326"></a> -<span class="sourceLineNo">327</span> }<a name="line.327"></a> -<span class="sourceLineNo">328</span> }<a name="line.328"></a> -<span class="sourceLineNo">329</span> } catch (InterruptedException e) {<a name="line.329"></a> -<span class="sourceLineNo">330</span> LOG.warn(getName() + " join wait got interrupted", e);<a name="line.330"></a> -<span class="sourceLineNo">331</span> }<a name="line.331"></a> -<span class="sourceLineNo">332</span> }<a name="line.332"></a> -<span class="sourceLineNo">333</span> }<a name="line.333"></a> -<span class="sourceLineNo">334</span><a name="line.334"></a> -<span class="sourceLineNo">335</span> // ============================================================================================<a name="line.335"></a> -<span class="sourceLineNo">336</span> // Internals Helpers<a name="line.336"></a> -<span class="sourceLineNo">337</span> // ============================================================================================<a name="line.337"></a> -<span class="sourceLineNo">338</span><a name="line.338"></a> -<span class="sourceLineNo">339</span> /**<a name="line.339"></a> -<span class="sourceLineNo">340</span> * Node that contains a set of RemoteProcedures<a name="line.340"></a> -<span class="sourceLineNo">341</span> */<a name="line.341"></a> -<span class="sourceLineNo">342</span> protected final class BufferNode extends DelayedContainerWithTimestamp<TRemote><a name="line.342"></a> -<span class="sourceLineNo">343</span> implements RemoteNode<TEnv, TRemote> {<a name="line.343"></a> -<span class="sourceLineNo">344</span> private Set<RemoteProcedure> operations;<a name="line.344"></a> -<span class="sourceLineNo">345</span><a name="line.345"></a> -<span class="sourceLineNo">346</span> protected BufferNode(final TRemote key) {<a 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class="sourceLineNo">359</span> setTimeout(EnvironmentEdgeManager.currentTime() + operationDelay);<a name="line.359"></a> -<span class="sourceLineNo">360</span> timeoutExecutor.add(this);<a name="line.360"></a> -<span class="sourceLineNo">361</span> }<a name="line.361"></a> -<span class="sourceLineNo">362</span> this.operations.add(operation);<a name="line.362"></a> -<span class="sourceLineNo">363</span> if (this.operations.size() > queueMaxSize) {<a name="line.363"></a> -<span class="sourceLineNo">364</span> timeoutExecutor.remove(this);<a name="line.364"></a> -<span class="sourceLineNo">365</span> dispatch();<a name="line.365"></a> -<span class="sourceLineNo">366</span> }<a name="line.366"></a> -<span class="sourceLineNo">367</span> }<a name="line.367"></a> -<span class="sourceLineNo">368</span><a name="line.368"></a> -<span class="sourceLineNo">369</span> @Override<a name="line.369"></a> -<span class="sourceLineNo">370</span> public synchronized void dispatch() {<a 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name="line.382"></a> -<span class="sourceLineNo">383</span><a name="line.383"></a> -<span class="sourceLineNo">384</span> @Override<a name="line.384"></a> -<span class="sourceLineNo">385</span> public String toString() {<a name="line.385"></a> -<span class="sourceLineNo">386</span> return super.toString() + ", operations=" + this.operations;<a name="line.386"></a> -<span class="sourceLineNo">387</span> }<a name="line.387"></a> -<span class="sourceLineNo">388</span> }<a name="line.388"></a> -<span class="sourceLineNo">389</span><a name="line.389"></a> -<span class="sourceLineNo">390</span> /**<a name="line.390"></a> -<span class="sourceLineNo">391</span> * Delayed object that holds a FutureTask.<a name="line.391"></a> -<span class="sourceLineNo">392</span> * used to submit something later to the thread-pool.<a name="line.392"></a> -<span class="sourceLineNo">393</span> */<a name="line.393"></a> -<span class="sourceLineNo">394</span> private static final class DelayedTask extends DelayedContainerWithTimestamp<FutureTask<Void>> {<a name="line.394"></a> -<span class="sourceLineNo">395</span> public DelayedTask(final FutureTask<Void> task, final long delay, final TimeUnit unit) {<a name="line.395"></a> -<span class="sourceLineNo">396</span> super(task, EnvironmentEdgeManager.currentTime() + unit.toMillis(delay));<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">171</span> throw new NullTargetServerDispatchException(rp.toString());<a name="line.171"></a> +<span class="sourceLineNo">172</span> }<a name="line.172"></a> +<span class="sourceLineNo">173</span> BufferNode node = nodeMap.get(key);<a name="line.173"></a> +<span class="sourceLineNo">174</span> if (node == null) {<a name="line.174"></a> +<span class="sourceLineNo">175</span> // If null here, it means node has been removed because it crashed. This happens when server<a name="line.175"></a> +<span class="sourceLineNo">176</span> // is expired in ServerManager. 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class="sourceLineNo">187</span> * Remove a remote node<a name="line.187"></a> +<span class="sourceLineNo">188</span> * @param key the node identifier<a name="line.188"></a> +<span class="sourceLineNo">189</span> */<a name="line.189"></a> +<span class="sourceLineNo">190</span> public boolean removeNode(final TRemote key) {<a name="line.190"></a> +<span class="sourceLineNo">191</span> final BufferNode node = nodeMap.remove(key);<a name="line.191"></a> +<span class="sourceLineNo">192</span> if (node == null) return false;<a name="line.192"></a> +<span class="sourceLineNo">193</span> node.abortOperationsInQueue();<a name="line.193"></a> +<span class="sourceLineNo">194</span> return true;<a name="line.194"></a> +<span class="sourceLineNo">195</span> }<a name="line.195"></a> +<span class="sourceLineNo">196</span><a name="line.196"></a> +<span class="sourceLineNo">197</span> // ============================================================================================<a name="line.197"></a> +<span class="sourceLineNo">198</span> // Task Helpers<a name="line.198"></a> +<span class="sourceLineNo">199</span> // ============================================================================================<a name="line.199"></a> +<span class="sourceLineNo">200</span> protected Future<Void> submitTask(Callable<Void> task) {<a name="line.200"></a> +<span class="sourceLineNo">201</span> return threadPool.submit(task);<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> protected Future<Void> submitTask(Callable<Void> task, long delay, TimeUnit unit) {<a name="line.204"></a> +<span class="sourceLineNo">205</span> final FutureTask<Void> futureTask = new FutureTask(task);<a name="line.205"></a> +<span class="sourceLineNo">206</span> timeoutExecutor.add(new DelayedTask(futureTask, delay, unit));<a name="line.206"></a> +<span class="sourceLineNo">207</span> return futureTask;<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> protected abstract void remoteDispatch(TRemote key, Set<RemoteProcedure> operations);<a name="line.210"></a> +<span class="sourceLineNo">211</span> protected abstract void abortPendingOperations(TRemote key, Set<RemoteProcedure> operations);<a name="line.211"></a> +<span class="sourceLineNo">212</span><a name="line.212"></a> +<span class="sourceLineNo">213</span> /**<a name="line.213"></a> +<span class="sourceLineNo">214</span> * Data structure with reference to remote operation.<a name="line.214"></a> +<span class="sourceLineNo">215</span> */<a name="line.215"></a> +<span class="sourceLineNo">216</span> public static abstract class RemoteOperation {<a name="line.216"></a> +<span class="sourceLineNo">217</span> private final RemoteProcedure 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+<span class="sourceLineNo">230</span> */<a name="line.230"></a> +<span class="sourceLineNo">231</span> public interface RemoteProcedure<TEnv, TRemote> {<a name="line.231"></a> +<span class="sourceLineNo">232</span> /**<a name="line.232"></a> +<span class="sourceLineNo">233</span> * For building the remote operation.<a name="line.233"></a> +<span class="sourceLineNo">234</span> */<a name="line.234"></a> +<span class="sourceLineNo">235</span> RemoteOperation remoteCallBuild(TEnv env, TRemote remote);<a name="line.235"></a> +<span class="sourceLineNo">236</span><a name="line.236"></a> +<span class="sourceLineNo">237</span> /**<a name="line.237"></a> +<span class="sourceLineNo">238</span> * Called when the executeProcedure call is failed.<a name="line.238"></a> +<span class="sourceLineNo">239</span> */<a name="line.239"></a> +<span class="sourceLineNo">240</span> void remoteCallFailed(TEnv env, TRemote remote, IOException exception);<a name="line.240"></a> +<span class="sourceLineNo">241</span><a name="line.241"></a> +<span class="sourceLineNo">242</span> /**<a name="line.242"></a> +<span class="sourceLineNo">243</span> * Called when RS tells the remote procedure is succeeded through the<a name="line.243"></a> +<span class="sourceLineNo">244</span> * {@code reportProcedureDone} method.<a name="line.244"></a> +<span class="sourceLineNo">245</span> */<a name="line.245"></a> +<span class="sourceLineNo">246</span> void remoteOperationCompleted(TEnv env);<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> * Called when RS tells the remote procedure is failed through the {@code reportProcedureDone}<a name="line.249"></a> +<span class="sourceLineNo">250</span> * method.<a name="line.250"></a> +<span class="sourceLineNo">251</span> */<a name="line.251"></a> +<span class="sourceLineNo">252</span> void remoteOperationFailed(TEnv env, RemoteProcedureException error);<a name="line.252"></a> +<span class="sourceLineNo">253</span> }<a name="line.253"></a> +<span class="sourceLineNo">254</span><a name="line.254"></a> +<span class="sourceLineNo">255</span> /**<a name="line.255"></a> +<span class="sourceLineNo">256</span> * Account of what procedures are running on remote node.<a name="line.256"></a> +<span class="sourceLineNo">257</span> * @param <TEnv><a name="line.257"></a> +<span class="sourceLineNo">258</span> * @param <TRemote><a name="line.258"></a> +<span class="sourceLineNo">259</span> */<a name="line.259"></a> +<span class="sourceLineNo">260</span> public interface RemoteNode<TEnv, TRemote> {<a name="line.260"></a> +<span class="sourceLineNo">261</span> TRemote getKey();<a name="line.261"></a> +<span class="sourceLineNo">262</span> void add(RemoteProcedure<TEnv, TRemote> operation);<a name="line.262"></a> +<span class="sourceLineNo">263</span> void dispatch();<a name="line.263"></a> +<span class="sourceLineNo">264</span> }<a name="line.264"></a> +<span class="sourceLineNo">265</span><a name="line.265"></a> +<span class="sourceLineNo">266</span> protected ArrayListMultimap<Class<?>, RemoteOperation> buildAndGroupRequestByType(final TEnv env,<a name="line.266"></a> +<span class="sourceLineNo">267</span> final TRemote remote, final Set<RemoteProcedure> remoteProcedures) {<a name="line.267"></a> +<span class="sourceLineNo">268</span> final ArrayListMultimap<Class<?>, RemoteOperation> requestByType = ArrayListMultimap.create();<a name="line.268"></a> +<span class="sourceLineNo">269</span> for (RemoteProcedure proc: remoteProcedures) {<a name="line.269"></a> +<span class="sourceLineNo">270</span> RemoteOperation operation = proc.remoteCallBuild(env, remote);<a name="line.270"></a> +<span class="sourceLineNo">271</span> requestByType.put(operation.getClass(), operation);<a name="line.271"></a> +<span class="sourceLineNo">272</span> }<a name="line.272"></a> +<span class="sourceLineNo">273</span> return requestByType;<a name="line.273"></a> +<span class="sourceLineNo">274</span> }<a name="line.274"></a> +<span class="sourceLineNo">275</span><a name="line.275"></a> +<span class="sourceLineNo">276</span> protected <T extends RemoteOperation> List<T> fetchType(<a name="line.276"></a> +<span class="sourceLineNo">277</span> final ArrayListMultimap<Class<?>, RemoteOperation> requestByType, final Class<T> type) {<a name="line.277"></a> +<span class="sourceLineNo">278</span> return (List<T>)requestByType.removeAll(type);<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> // ============================================================================================<a name="line.281"></a> +<span class="sourceLineNo">282</span> // Timeout Helpers<a name="line.282"></a> +<span class="sourceLineNo">283</span> // ============================================================================================<a name="line.283"></a> +<span class="sourceLineNo">284</span> private final class TimeoutExecutorThread extends Thread {<a name="line.284"></a> +<span class="sourceLineNo">285</span> private final DelayQueue<DelayedWithTimeout> queue = new DelayQueue<DelayedWithTimeout>();<a name="line.285"></a> +<span class="sourceLineNo">286</span><a name="line.286"></a> +<span class="sourceLineNo">287</span> public TimeoutExecutorThread() {<a name="line.287"></a> +<span class="sourceLineNo">288</span> super("ProcedureDispatcherTimeoutThread");<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> @Override<a name="line.291"></a> +<span class="sourceLineNo">292</span> public void run() {<a name="line.292"></a> +<span class="sourceLineNo">293</span> while (running.get()) {<a name="line.293"></a> +<span class="sourceLineNo">294</span> final DelayedWithTimeout task = DelayedUtil.takeWithoutInterrupt(queue);<a name="line.294"></a> +<span class="sourceLineNo">295</span> if (task == null || task == DelayedUtil.DELAYED_POISON) {<a name="line.295"></a> +<span class="sourceLineNo">296</span> // the executor may be shutting down, and the task is just the shutdown request<a name="line.296"></a> +<span class="sourceLineNo">297</span> continue;<a name="line.297"></a> +<span class="sourceLineNo">298</span> }<a name="line.298"></a> +<span class="sourceLineNo">299</span> if (task instanceof DelayedTask) {<a name="line.299"></a> +<span class="sourceLineNo">300</span> threadPool.execute(((DelayedTask)task).getObject());<a name="line.300"></a> +<span class="sourceLineNo">301</span> } else {<a name="line.301"></a> +<span class="sourceLineNo">302</span> ((BufferNode)task).dispatch();<a name="line.302"></a> +<span class="sourceLineNo">303</span> }<a name="line.303"></a> +<span class="sourceLineNo">304</span> }<a name="line.304"></a> +<span class="sourceLineNo">305</span> }<a name="line.305"></a> +<span class="sourceLineNo">306</span><a name="line.306"></a> +<span class="sourceLineNo">307</span> public void add(final DelayedWithTimeout delayed) {<a name="line.307"></a> +<span class="sourceLineNo">308</span> queue.add(delayed);<a name="line.308"></a> +<span class="sourceLineNo">309</span> }<a name="line.309"></a> +<span class="sourceLineNo">310</span><a name="line.310"></a> +<span class="sourceLineNo">311</span> public void remove(final DelayedWithTimeout delayed) {<a name="line.311"></a> +<span class="sourceLineNo">312</span> queue.remove(delayed);<a name="line.312"></a> +<span class="sourceLineNo">313</span> }<a name="line.313"></a> +<span class="sourceLineNo">314</span><a name="line.314"></a> +<span class="sourceLineNo">315</span> public void sendStopSignal() {<a name="line.315"></a> +<span class="sourceLineNo">316</span> queue.add(DelayedUtil.DELAYED_POISON);<a name="line.316"></a> +<span class="sourceLineNo">317</span> }<a name="line.317"></a> +<span class="sourceLineNo">318</span><a name="line.318"></a> +<span class="sourceLineNo">319</span> public void awaitTermination() {<a name="line.319"></a> +<span class="sourceLineNo">320</span> try {<a name="line.320"></a> +<span class="sourceLineNo">321</span> final long startTime = EnvironmentEdgeManager.currentTime();<a name="line.321"></a> +<span class="sourceLineNo">322</span> for (int i = 0; isAlive(); ++i) {<a name="line.322"></a> +<span class="sourceLineNo">323</span> sendStopSignal();<a name="line.323"></a> +<span class="sourceLineNo">324</span> join(250);<a name="line.324"></a> +<span class="sourceLineNo">325</span> if (i > 0 && (i % 8) == 0) {<a name="line.325"></a> +<span class="sourceLineNo">326</span> LOG.warn("Waiting termination of thread " + getName() + ", " +<a name="line.326"></a> +<span class="sourceLineNo">327</span> StringUtils.humanTimeDiff(EnvironmentEdgeManager.currentTime() - startTime));<a name="line.327"></a> +<span class="sourceLineNo">328</span> }<a name="line.328"></a> +<span class="sourceLineNo">329</span> }<a name="line.329"></a> +<span class="sourceLineNo">330</span> } catch (InterruptedException e) {<a name="line.330"></a> +<span class="sourceLineNo">331</span> LOG.warn(getName() + " join wait got interrupted", e);<a name="line.331"></a> +<span class="sourceLineNo">332</span> }<a name="line.332"></a> +<span class="sourceLineNo">333</span> }<a name="line.333"></a> +<span class="sourceLineNo">334</span> }<a name="line.334"></a> +<span class="sourceLineNo">335</span><a name="line.335"></a> +<span class="sourceLineNo">336</span> // ============================================================================================<a name="line.336"></a> +<span class="sourceLineNo">337</span> // Internals Helpers<a name="line.337"></a> +<span class="sourceLineNo">338</span> // ============================================================================================<a name="line.338"></a> +<span class="sourceLineNo">339</span><a name="line.339"></a> +<span class="sourceLineNo">340</span> /**<a name="line.340"></a> +<span class="sourceLineNo">341</span> * Node that contains a set of RemoteProcedures<a name="line.341"></a> +<span class="sourceLineNo">342</span> */<a name="line.342"></a> +<span class="sourceLineNo">343</span> protected final class BufferNode extends DelayedContainerWithTimestamp<TRemote><a name="line.343"></a> +<span class="sourceLineNo">344</span> implements RemoteNode<TEnv, TRemote> {<a name="line.344"></a> +<span class="sourceLineNo">345</span> private Set<RemoteProcedure> operations;<a name="line.345"></a> +<span class="sourceLineNo">346</span><a name="line.346"></a> +<span class="sourceLineNo">347</span> protected BufferNode(final TRemote key) {<a name="line.347"></a> +<span class="sourceLineNo">348</span> super(key, 0);<a name="line.348"></a> +<span class="sourceLineNo">349</span> }<a name="line.349"></a> +<span class="sourceLineNo">350</span><a name="line.350"></a> +<span class="sourceLineNo">351</span> @Override<a name="line.351"></a> +<span class="sourceLineNo">352</span> public TRemote getKey() {<a name="line.352"></a> +<span class="sourceLineNo">353</span> return getObject();<a name="line.353"></a> +<span class="sourceLineNo">354</span> }<a name="line.354"></a> +<span class="sourceLineNo">355</span><a name="line.355"></a> +<span class="sourceLineNo">356</span> @Override<a name="line.356"></a> +<span class="sourceLineNo">357</span> public synchronized void add(final RemoteProcedure operation) {<a name="line.357"></a> +<span class="sourceLineNo">358</span> if (this.operations == null) {<a name="line.358"></a> +<span class="sourceLineNo">359</span> this.operations = new HashSet<>();<a name="line.359"></a> +<span class="sourceLineNo">360</span> setTimeout(EnvironmentEdgeManager.currentTime() + operationDelay);<a name="line.360"></a> +<span class="sourceLineNo">361</span> timeoutExecutor.add(this);<a name="line.361"></a> +<span class="sourceLineNo">362</span> }<a name="line.362"></a> +<span class="sourceLineNo">363</span> this.operations.add(operation);<a name="line.363"></a> +<span class="sourceLineNo">364</span> if (this.operations.size() > queueMaxSize) {<a name="line.364"></a> +<span class="sourceLineNo">365</span> timeoutExecutor.remove(this);<a name="line.365"></a> +<span class="sourceLineNo">366</span> dispatch();<a name="line.366"></a> +<span class="sourceLineNo">367</span> }<a name="line.367"></a> +<span class="sourceLineNo">368</span> }<a name="line.368"></a> +<span class="sourceLineNo">369</span><a name="line.369"></a> +<span class="sourceLineNo">370</span> @Override<a name="line.370"></a> +<span class="sourceLineNo">371</span> public synchronized void dispatch() {<a name="line.371"></a> +<span class="sourceLineNo">372</span> if (operations != null) {<a name="line.372"></a> +<span class="sourceLineNo">373</span> remoteDispatch(getKey(), operations);<a name="line.373"></a> +<span class="sourceLineNo">374</span> this.operations = null;<a name="line.374"></a> +<span class="sourceLineNo">375</span> }<a name="line.375"></a> +<span class="sourceLineNo">376</span> }<a name="line.376"></a> +<span class="sourceLineNo">377</span><a name="line.377"></a> +<span class="sourceLineNo">378</span> public synchronized void abortOperationsInQueue() {<a name="line.378"></a> +<span class="sourceLineNo">379</span> if (operations != null) {<a name="line.379"></a> +<span class="sourceLineNo">380</span> abortPendingOperations(getKey(), operations);<a name="line.380"></a> +<span class="sourceLineNo">381</span> this.operations = null;<a name="line.381"></a> +<span class="sourceLineNo">382</span> }<a name="line.382"></a> +<span class="sourceLineNo">383</span> }<a name="line.383"></a> +<span class="sourceLineNo">384</span><a name="line.384"></a> +<span class="sourceLineNo">385</span> @Override<a name="line.385"></a> +<span class="sourceLineNo">386</span> public String toString() {<a name="line.386"></a> +<span class="sourceLineNo">387</span> return super.toString() + ", operations=" + this.operations;<a name="line.387"></a> +<span class="sourceLineNo">388</span> }<a name="line.388"></a> +<span class="sourceLineNo">389</span> }<a name="line.389"></a> +<span class="sourceLineNo">390</span><a name="line.390"></a> +<span class="sourceLineNo">391</span> /**<a name="line.391"></a> +<span class="sourceLineNo">392</span> * Delayed object that holds a FutureTask.<a name="line.392"></a> +<span class="sourceLineNo">393</span> * used to submit something later to the thread-pool.<a name="line.393"></a> +<span class="sourceLineNo">394</span> */<a name="line.394"></a> +<span class="sourceLineNo">395</span> private static final class DelayedTask extends 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See the NOTICE file<a name="line.4"></a> +<span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> +<span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> +<span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> +<span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> +<span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> +<span class="sourceLineNo">010</span> *<a name="line.10"></a> +<span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> +<span class="sourceLineNo">012</span> *<a name="line.12"></a> +<span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> +<span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> +<span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> +<span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> +<span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> +<span class="sourceLineNo">018</span> */<a name="line.18"></a> +<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver;<a name="line.19"></a> +<span class="sourceLineNo">020</span><a name="line.20"></a> +<span class="sourceLineNo">021</span>import java.util.Iterator;<a name="line.21"></a> +<span class="sourceLineNo">022</span><a name="line.22"></a> +<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.Cell;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.24"></a> +<span class="sourceLineNo">025</span><a name="line.25"></a> +<span class="sourceLineNo">026</span><a name="line.26"></a> +<span class="sourceLineNo">027</span>/**<a name="line.27"></a> +<span class="sourceLineNo">028</span> * A basic SegmentScanner used against an ImmutableScanner snapshot<a name="line.28"></a> +<span class="sourceLineNo">029</span> * Used flushing where we do a single pass, no reverse scanning or<a name="line.29"></a> +<span class="sourceLineNo">030</span> * inserts happening. Its a dumbed-down Scanner that can go fast.<a name="line.30"></a> +<span class="sourceLineNo">031</span> * Like {@link org.apache.hadoop.hbase.util.CollectionBackedScanner}<a name="line.31"></a> +<span class="sourceLineNo">032</span> * (but making it know about Segments was onerous).<a name="line.32"></a> +<span class="sourceLineNo">033</span> */<a name="line.33"></a> +<span class="sourceLineNo">034</span>@InterfaceAudience.Private<a name="line.34"></a> +<span class="sourceLineNo">035</span>public class SnapshotSegmentScanner extends NonReversedNonLazyKeyValueScanner {<a name="line.35"></a> +<span class="sourceLineNo">036</span> private final ImmutableSegment segment;<a name="line.36"></a> +<span class="sourceLineNo">037</span> private Iterator<Cell> iter;<a name="line.37"></a> +<span class="sourceLineNo">038</span> private Cell current;<a name="line.38"></a> +<span class="sourceLineNo">039</span><a name="line.39"></a> +<span class="sourceLineNo">040</span> public SnapshotSegmentScanner(ImmutableSegment segment) {<a name="line.40"></a> +<span class="sourceLineNo">041</span> this.segment = segment;<a name="line.41"></a> +<span class="sourceLineNo">042</span> this.segment.incScannerCount();<a name="line.42"></a> +<span class="sourceLineNo">043</span> this.iter = createIterator(this.segment);<a name="line.43"></a> +<span class="sourceLineNo">044</span> if (this.iter.hasNext()){<a name="line.44"></a> +<span class="sourceLineNo">045</span> this.current = this.iter.next();<a name="line.45"></a> +<span class="sourceLineNo">046</span> }<a name="line.46"></a> +<span class="sourceLineNo">047</span> }<a name="line.47"></a> +<span class="sourceLineNo">048</span><a name="line.48"></a> +<span class="sourceLineNo">049</span> private static Iterator<Cell> createIterator(Segment segment) {<a name="line.49"></a> +<span class="sourceLineNo">050</span> return segment.getCellSet().iterator();<a name="line.50"></a> +<span class="sourceLineNo">051</span> }<a name="line.51"></a> +<span class="sourceLineNo">052</span><a name="line.52"></a> +<span class="sourceLineNo">053</span> @Override<a name="line.53"></a> +<span class="sourceLineNo">054</span> public Cell peek() {<a name="line.54"></a> +<span class="sourceLineNo">055</span> return current;<a name="line.55"></a> +<span class="sourceLineNo">056</span> }<a name="line.56"></a> +<span class="sourceLineNo">057</span><a name="line.57"></a> +<span class="sourceLineNo">058</span> @Override<a name="line.58"></a> +<span class="sourceLineNo">059</span> public Cell next() {<a name="line.59"></a> +<span class="sourceLineNo">060</span> Cell oldCurrent = current;<a name="line.60"></a> +<span class="sourceLineNo">061</span> if(iter.hasNext()){<a name="line.61"></a> +<span class="sourceLineNo">062</span> current = iter.next();<a name="line.62"></a> +<span class="sourceLineNo">063</span> } else {<a name="line.63"></a> +<span class="sourceLineNo">064</span> current = null;<a name="line.64"></a> +<span 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