http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c9d35424/devapidocs/src-html/org/apache/hadoop/hbase/client/MetaCache.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/MetaCache.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/MetaCache.html index 69d5596..22ae2e0 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/client/MetaCache.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/MetaCache.html @@ -321,94 +321,128 @@ <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> /**<a name="line.315"></a> -<span class="sourceLineNo">316</span> * Delete a cached location for a table, row and server<a name="line.316"></a> -<span class="sourceLineNo">317</span> */<a name="line.317"></a> -<span class="sourceLineNo">318</span> public void clearCache(final TableName 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class="sourceLineNo">387</span> HRegionLocation oldLocation = regionLocations.getRegionLocation(hri.getReplicaId());<a name="line.387"></a> +<span class="sourceLineNo">388</span> if (oldLocation == null) return;<a name="line.388"></a> +<span class="sourceLineNo">389</span> RegionLocations updatedLocations = regionLocations.remove(oldLocation);<a name="line.389"></a> +<span class="sourceLineNo">390</span> boolean removed;<a name="line.390"></a> +<span class="sourceLineNo">391</span> if (updatedLocations != regionLocations) {<a name="line.391"></a> +<span class="sourceLineNo">392</span> if (updatedLocations.isEmpty()) {<a name="line.392"></a> +<span class="sourceLineNo">393</span> removed = tableLocations.remove(hri.getStartKey(), regionLocations);<a name="line.393"></a> +<span class="sourceLineNo">394</span> } else {<a name="line.394"></a> +<span class="sourceLineNo">395</span> removed = tableLocations.replace(hri.getStartKey(), regionLocations, updatedLocations);<a name="line.395"></a> 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class="sourceLineNo">409</span> public void clearCache(final HRegionLocation location) {<a name="line.409"></a> +<span class="sourceLineNo">410</span> if (location == null) {<a name="line.410"></a> +<span class="sourceLineNo">411</span> return;<a name="line.411"></a> +<span class="sourceLineNo">412</span> }<a name="line.412"></a> +<span class="sourceLineNo">413</span> TableName tableName = location.getRegionInfo().getTable();<a name="line.413"></a> +<span class="sourceLineNo">414</span> ConcurrentMap<byte[], RegionLocations> tableLocations = getTableLocations(tableName);<a name="line.414"></a> +<span class="sourceLineNo">415</span> RegionLocations regionLocations = tableLocations.get(location.getRegionInfo().getStartKey());<a name="line.415"></a> +<span class="sourceLineNo">416</span> if (regionLocations != null) {<a name="line.416"></a> +<span class="sourceLineNo">417</span> RegionLocations updatedLocations = regionLocations.remove(location);<a name="line.417"></a> +<span class="sourceLineNo">418</span> boolean removed;<a name="line.418"></a> +<span class="sourceLineNo">419</span> if (updatedLocations != regionLocations) {<a name="line.419"></a> +<span class="sourceLineNo">420</span> if (updatedLocations.isEmpty()) {<a name="line.420"></a> +<span class="sourceLineNo">421</span> removed = tableLocations.remove(location.getRegionInfo().getStartKey(), regionLocations);<a name="line.421"></a> +<span class="sourceLineNo">422</span> } else {<a name="line.422"></a> +<span class="sourceLineNo">423</span> removed = tableLocations.replace(location.getRegionInfo().getStartKey(), regionLocations,<a name="line.423"></a> +<span class="sourceLineNo">424</span> updatedLocations);<a name="line.424"></a> +<span class="sourceLineNo">425</span> }<a name="line.425"></a> +<span class="sourceLineNo">426</span> if (removed) {<a name="line.426"></a> +<span class="sourceLineNo">427</span> if (metrics != null) {<a name="line.427"></a> +<span class="sourceLineNo">428</span> metrics.incrMetaCacheNumClearRegion();<a name="line.428"></a> +<span class="sourceLineNo">429</span> }<a name="line.429"></a> +<span class="sourceLineNo">430</span> if (LOG.isTraceEnabled()) {<a name="line.430"></a> +<span class="sourceLineNo">431</span> LOG.trace("Removed " + location + " from cache");<a name="line.431"></a> +<span class="sourceLineNo">432</span> }<a name="line.432"></a> +<span class="sourceLineNo">433</span> }<a name="line.433"></a> +<span class="sourceLineNo">434</span> }<a name="line.434"></a> +<span class="sourceLineNo">435</span> }<a name="line.435"></a> +<span class="sourceLineNo">436</span> }<a name="line.436"></a> +<span class="sourceLineNo">437</span>}<a name="line.437"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c9d35424/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.ReplicaRegionServerCallable.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.ReplicaRegionServerCallable.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.ReplicaRegionServerCallable.html index 8204859..7fcfbdf 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.ReplicaRegionServerCallable.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.ReplicaRegionServerCallable.html @@ -178,133 +178,165 @@ <span class="sourceLineNo">170</span> throws DoNotRetryIOException, InterruptedIOException, RetriesExhaustedException {<a name="line.170"></a> <span class="sourceLineNo">171</span> boolean isTargetReplicaSpecified = (get.getReplicaId() >= 0);<a name="line.171"></a> <span class="sourceLineNo">172</span><a name="line.172"></a> -<span class="sourceLineNo">173</span> RegionLocations rl = getRegionLocations(true, (isTargetReplicaSpecified ? get.getReplicaId()<a name="line.173"></a> -<span class="sourceLineNo">174</span> : RegionReplicaUtil.DEFAULT_REPLICA_ID), cConnection, tableName, get.getRow());<a name="line.174"></a> -<span class="sourceLineNo">175</span> final ResultBoundedCompletionService<Result> cs =<a name="line.175"></a> -<span class="sourceLineNo">176</span> new ResultBoundedCompletionService<>(this.rpcRetryingCallerFactory, pool, rl.size());<a name="line.176"></a> -<span class="sourceLineNo">177</span> int startIndex = 0;<a name="line.177"></a> -<span class="sourceLineNo">178</span> int endIndex = rl.size();<a name="line.178"></a> -<span class="sourceLineNo">179</span><a name="line.179"></a> -<span class="sourceLineNo">180</span> if(isTargetReplicaSpecified) {<a name="line.180"></a> -<span class="sourceLineNo">181</span> addCallsForReplica(cs, rl, get.getReplicaId(), get.getReplicaId());<a name="line.181"></a> -<span class="sourceLineNo">182</span> endIndex = 1;<a name="line.182"></a> -<span class="sourceLineNo">183</span> } else {<a name="line.183"></a> -<span class="sourceLineNo">184</span> addCallsForReplica(cs, rl, 0, 0);<a name="line.184"></a> -<span class="sourceLineNo">185</span> try {<a name="line.185"></a> -<span class="sourceLineNo">186</span> // wait for the timeout to see whether the primary responds back<a name="line.186"></a> -<span class="sourceLineNo">187</span> Future<Result> f = cs.poll(timeBeforeReplicas, TimeUnit.MICROSECONDS); // Yes, microseconds<a name="line.187"></a> -<span class="sourceLineNo">188</span> if (f != null) {<a name="line.188"></a> -<span class="sourceLineNo">189</span> return f.get(); //great we got a response<a name="line.189"></a> -<span class="sourceLineNo">190</span> }<a name="line.190"></a> -<span class="sourceLineNo">191</span> } catch (ExecutionException e) {<a name="line.191"></a> -<span class="sourceLineNo">192</span> // We ignore the ExecutionException and continue with the secondary replicas<a name="line.192"></a> -<span class="sourceLineNo">193</span> if (LOG.isDebugEnabled()) {<a name="line.193"></a> -<span class="sourceLineNo">194</span> LOG.debug("Primary replica returns " + e.getCause());<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> // Skip the result from the primary as we know that there is something wrong<a name="line.197"></a> -<span class="sourceLineNo">198</span> startIndex = 1;<a name="line.198"></a> -<span class="sourceLineNo">199</span> } catch (CancellationException e) {<a name="line.199"></a> -<span class="sourceLineNo">200</span> throw new InterruptedIOException();<a name="line.200"></a> -<span class="sourceLineNo">201</span> } catch (InterruptedException e) {<a name="line.201"></a> -<span class="sourceLineNo">202</span> throw new InterruptedIOException();<a name="line.202"></a> -<span class="sourceLineNo">203</span> }<a name="line.203"></a> -<span class="sourceLineNo">204</span><a name="line.204"></a> -<span class="sourceLineNo">205</span> // submit call for the all of the secondaries at once<a name="line.205"></a> -<span class="sourceLineNo">206</span> addCallsForReplica(cs, rl, 1, rl.size() - 1);<a name="line.206"></a> -<span class="sourceLineNo">207</span> }<a name="line.207"></a> -<span class="sourceLineNo">208</span> try {<a name="line.208"></a> -<span class="sourceLineNo">209</span> Future<Result> f = cs.pollForFirstSuccessfullyCompletedTask(operationTimeout,<a name="line.209"></a> -<span class="sourceLineNo">210</span> TimeUnit.MILLISECONDS, startIndex, endIndex);<a name="line.210"></a> -<span class="sourceLineNo">211</span> if (f == null) {<a name="line.211"></a> -<span class="sourceLineNo">212</span> throw new RetriesExhaustedException("Timed out after " + operationTimeout +<a name="line.212"></a> -<span class="sourceLineNo">213</span> "ms. 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// Yes, microseconds<a name="line.215"></a> +<span class="sourceLineNo">216</span> if (f != null) {<a name="line.216"></a> +<span class="sourceLineNo">217</span> return f.get(); //great we got a response<a name="line.217"></a> +<span class="sourceLineNo">218</span> }<a name="line.218"></a> +<span class="sourceLineNo">219</span> } catch (ExecutionException e) {<a name="line.219"></a> +<span class="sourceLineNo">220</span> // We ignore the ExecutionException and continue with the secondary replicas<a name="line.220"></a> +<span class="sourceLineNo">221</span> if (LOG.isDebugEnabled()) {<a name="line.221"></a> +<span class="sourceLineNo">222</span> LOG.debug("Primary replica returns " + e.getCause());<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> // Skip the result from the primary as we know that there is something wrong<a name="line.225"></a> +<span class="sourceLineNo">226</span> startIndex = 1;<a name="line.226"></a> +<span class="sourceLineNo">227</span> } catch (CancellationException e) {<a name="line.227"></a> +<span class="sourceLineNo">228</span> throw new InterruptedIOException();<a name="line.228"></a> +<span class="sourceLineNo">229</span> } catch (InterruptedException e) {<a name="line.229"></a> +<span class="sourceLineNo">230</span> throw new InterruptedIOException();<a name="line.230"></a> +<span class="sourceLineNo">231</span> }<a name="line.231"></a> +<span class="sourceLineNo">232</span> } else {<a name="line.232"></a> +<span class="sourceLineNo">233</span> // Since primary replica is skipped, the endIndex needs to be adjusted accordingly<a name="line.233"></a> +<span class="sourceLineNo">234</span> endIndex --;<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> // submit call for the all of the secondaries at once<a name="line.237"></a> +<span class="sourceLineNo">238</span> addCallsForReplica(cs, rl, 1, rl.size() - 1);<a name="line.238"></a> +<span class="sourceLineNo">239</span> }<a name="line.239"></a> +<span class="sourceLineNo">240</span> try {<a name="line.240"></a> +<span class="sourceLineNo">241</span> Future<Result> f = cs.pollForFirstSuccessfullyCompletedTask(operationTimeout,<a name="line.241"></a> +<span class="sourceLineNo">242</span> TimeUnit.MILLISECONDS, startIndex, endIndex);<a name="line.242"></a> +<span class="sourceLineNo">243</span> if (f == null) {<a name="line.243"></a> +<span class="sourceLineNo">244</span> throw new RetriesExhaustedException("Timed out after " + operationTimeout +<a name="line.244"></a> +<span class="sourceLineNo">245</span> "ms. 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Arrive at an unreachable line..."); // unreachable<a name="line.261"></a> +<span class="sourceLineNo">262</span> return null; // unreachable<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> /**<a name="line.265"></a> +<span class="sourceLineNo">266</span> * Extract the real exception from the ExecutionException, and throws what makes more<a name="line.266"></a> +<span class="sourceLineNo">267</span> * sense.<a name="line.267"></a> +<span class="sourceLineNo">268</span> */<a name="line.268"></a> +<span class="sourceLineNo">269</span> static void throwEnrichedException(ExecutionException e, int retries)<a name="line.269"></a> +<span class="sourceLineNo">270</span> throws RetriesExhaustedException, DoNotRetryIOException {<a name="line.270"></a> +<span class="sourceLineNo">271</span> Throwable t = e.getCause();<a name="line.271"></a> +<span class="sourceLineNo">272</span> assert t != null; // That's what ExecutionException is about: holding an exception<a name="line.272"></a> +<span class="sourceLineNo">273</span><a name="line.273"></a> +<span class="sourceLineNo">274</span> if (t instanceof RetriesExhaustedException) {<a name="line.274"></a> +<span class="sourceLineNo">275</span> throw (RetriesExhaustedException) t;<a name="line.275"></a> +<span class="sourceLineNo">276</span> }<a name="line.276"></a> +<span class="sourceLineNo">277</span><a name="line.277"></a> +<span class="sourceLineNo">278</span> if (t instanceof DoNotRetryIOException) {<a name="line.278"></a> +<span class="sourceLineNo">279</span> throw (DoNotRetryIOException) t;<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> RetriesExhaustedException.ThrowableWithExtraContext qt =<a name="line.282"></a> +<span class="sourceLineNo">283</span> new RetriesExhaustedException.ThrowableWithExtraContext(t,<a name="line.283"></a> +<span class="sourceLineNo">284</span> EnvironmentEdgeManager.currentTime(), null);<a name="line.284"></a> +<span class="sourceLineNo">285</span><a name="line.285"></a> +<span class="sourceLineNo">286</span> List<RetriesExhaustedException.ThrowableWithExtraContext> exceptions =<a name="line.286"></a> +<span class="sourceLineNo">287</span> Collections.singletonList(qt);<a name="line.287"></a> +<span class="sourceLineNo">288</span><a name="line.288"></a> +<span class="sourceLineNo">289</span> throw new RetriesExhaustedException(retries, exceptions);<a name="line.289"></a> +<span class="sourceLineNo">290</span> }<a name="line.290"></a> +<span class="sourceLineNo">291</span><a name="line.291"></a> +<span class="sourceLineNo">292</span> /**<a name="line.292"></a> +<span class="sourceLineNo">293</span> * Creates the calls and submit them<a name="line.293"></a> +<span class="sourceLineNo">294</span> *<a name="line.294"></a> +<span class="sourceLineNo">295</span> * @param cs - the completion service to use for submitting<a name="line.295"></a> +<span class="sourceLineNo">296</span> * @param rl - the region locations<a name="line.296"></a> +<span class="sourceLineNo">297</span> * @param min - the id of the first replica, inclusive<a name="line.297"></a> +<span class="sourceLineNo">298</span> * @param max - the id of the last replica, inclusive.<a name="line.298"></a> +<span class="sourceLineNo">299</span> */<a name="line.299"></a> +<span class="sourceLineNo">300</span> private void addCallsForReplica(ResultBoundedCompletionService<Result> cs,<a name="line.300"></a> +<span class="sourceLineNo">301</span> RegionLocations rl, int min, int max) {<a name="line.301"></a> +<span class="sourceLineNo">302</span> for (int id = min; id <= max; id++) {<a name="line.302"></a> +<span class="sourceLineNo">303</span> HRegionLocation hrl = rl.getRegionLocation(id);<a name="line.303"></a> +<span class="sourceLineNo">304</span> ReplicaRegionServerCallable callOnReplica = new ReplicaRegionServerCallable(id, hrl);<a name="line.304"></a> +<span class="sourceLineNo">305</span> cs.submit(callOnReplica, operationTimeout, id);<a name="line.305"></a> +<span class="sourceLineNo">306</span> }<a name="line.306"></a> +<span class="sourceLineNo">307</span> }<a name="line.307"></a> +<span class="sourceLineNo">308</span><a name="line.308"></a> +<span class="sourceLineNo">309</span> static RegionLocations getRegionLocations(boolean useCache, int replicaId,<a name="line.309"></a> +<span class="sourceLineNo">310</span> ClusterConnection cConnection, TableName tableName, byte[] row)<a name="line.310"></a> +<span class="sourceLineNo">311</span> throws RetriesExhaustedException, DoNotRetryIOException, InterruptedIOException {<a name="line.311"></a> +<span class="sourceLineNo">312</span><a name="line.312"></a> +<span class="sourceLineNo">313</span> RegionLocations rl;<a name="line.313"></a> +<span class="sourceLineNo">314</span> try {<a name="line.314"></a> +<span class="sourceLineNo">315</span> if (!useCache) {<a name="line.315"></a> +<span class="sourceLineNo">316</span> rl = cConnection.relocateRegion(tableName, row, replicaId);<a name="line.316"></a> +<span class="sourceLineNo">317</span> } else {<a name="line.317"></a> +<span class="sourceLineNo">318</span> rl = cConnection.locateRegion(tableName, row, useCache, true, replicaId);<a name="line.318"></a> +<span class="sourceLineNo">319</span> }<a name="line.319"></a> +<span class="sourceLineNo">320</span> } catch (DoNotRetryIOException | InterruptedIOException | RetriesExhaustedException e) {<a name="line.320"></a> +<span class="sourceLineNo">321</span> throw e;<a name="line.321"></a> +<span class="sourceLineNo">322</span> } catch (IOException e) {<a name="line.322"></a> +<span class="sourceLineNo">323</span> throw new RetriesExhaustedException("Can't get the location for replica " + replicaId, e);<a name="line.323"></a> +<span class="sourceLineNo">324</span> }<a name="line.324"></a> +<span class="sourceLineNo">325</span> if (rl == null) {<a name="line.325"></a> +<span class="sourceLineNo">326</span> throw new RetriesExhaustedException("Can't get the location for replica " + replicaId);<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> return rl;<a name="line.329"></a> +<span class="sourceLineNo">330</span> }<a name="line.330"></a> +<span class="sourceLineNo">331</span>}<a name="line.331"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c9d35424/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.html index 8204859..7fcfbdf 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.html @@ -178,133 +178,165 @@ <span class="sourceLineNo">170</span> throws DoNotRetryIOException, InterruptedIOException, RetriesExhaustedException {<a name="line.170"></a> <span class="sourceLineNo">171</span> boolean isTargetReplicaSpecified = (get.getReplicaId() >= 0);<a name="line.171"></a> <span class="sourceLineNo">172</span><a name="line.172"></a> -<span class="sourceLineNo">173</span> RegionLocations rl = getRegionLocations(true, (isTargetReplicaSpecified ? get.getReplicaId()<a name="line.173"></a> -<span class="sourceLineNo">174</span> : RegionReplicaUtil.DEFAULT_REPLICA_ID), cConnection, tableName, get.getRow());<a name="line.174"></a> -<span class="sourceLineNo">175</span> final ResultBoundedCompletionService<Result> cs =<a name="line.175"></a> -<span class="sourceLineNo">176</span> new ResultBoundedCompletionService<>(this.rpcRetryingCallerFactory, pool, rl.size());<a name="line.176"></a> -<span class="sourceLineNo">177</span> int startIndex = 0;<a name="line.177"></a> -<span class="sourceLineNo">178</span> int endIndex = rl.size();<a name="line.178"></a> -<span class="sourceLineNo">179</span><a name="line.179"></a> -<span class="sourceLineNo">180</span> if(isTargetReplicaSpecified) {<a name="line.180"></a> -<span class="sourceLineNo">181</span> addCallsForReplica(cs, rl, get.getReplicaId(), get.getReplicaId());<a name="line.181"></a> -<span class="sourceLineNo">182</span> endIndex = 1;<a name="line.182"></a> -<span class="sourceLineNo">183</span> } else {<a name="line.183"></a> -<span class="sourceLineNo">184</span> addCallsForReplica(cs, rl, 0, 0);<a name="line.184"></a> -<span class="sourceLineNo">185</span> try {<a name="line.185"></a> -<span class="sourceLineNo">186</span> // wait for the timeout to see whether the primary responds back<a name="line.186"></a> -<span class="sourceLineNo">187</span> Future<Result> f = cs.poll(timeBeforeReplicas, TimeUnit.MICROSECONDS); // Yes, microseconds<a name="line.187"></a> -<span class="sourceLineNo">188</span> if (f != null) {<a name="line.188"></a> -<span class="sourceLineNo">189</span> return f.get(); //great we got a response<a name="line.189"></a> -<span class="sourceLineNo">190</span> }<a name="line.190"></a> -<span class="sourceLineNo">191</span> } catch (ExecutionException e) {<a name="line.191"></a> -<span class="sourceLineNo">192</span> // We ignore the ExecutionException and continue with the secondary replicas<a name="line.192"></a> -<span class="sourceLineNo">193</span> if (LOG.isDebugEnabled()) {<a name="line.193"></a> -<span class="sourceLineNo">194</span> LOG.debug("Primary replica returns " + e.getCause());<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> // Skip the result from the primary as we know that there is something wrong<a name="line.197"></a> -<span class="sourceLineNo">198</span> startIndex = 1;<a name="line.198"></a> -<span class="sourceLineNo">199</span> } catch (CancellationException e) {<a name="line.199"></a> -<span class="sourceLineNo">200</span> throw new InterruptedIOException();<a name="line.200"></a> -<span class="sourceLineNo">201</span> } catch (InterruptedException e) {<a name="line.201"></a> -<span class="sourceLineNo">202</span> throw new InterruptedIOException();<a name="line.202"></a> -<span class="sourceLineNo">203</span> }<a name="line.203"></a> -<span class="sourceLineNo">204</span><a name="line.204"></a> -<span class="sourceLineNo">205</span> // submit call for the all of the secondaries at once<a name="line.205"></a> -<span class="sourceLineNo">206</span> addCallsForReplica(cs, rl, 1, rl.size() - 1);<a name="line.206"></a> -<span class="sourceLineNo">207</span> }<a name="line.207"></a> -<span class="sourceLineNo">208</span> try {<a name="line.208"></a> -<span class="sourceLineNo">209</span> Future<Result> f = cs.pollForFirstSuccessfullyCompletedTask(operationTimeout,<a name="line.209"></a> -<span class="sourceLineNo">210</span> TimeUnit.MILLISECONDS, startIndex, endIndex);<a name="line.210"></a> -<span class="sourceLineNo">211</span> if (f == null) {<a name="line.211"></a> -<span class="sourceLineNo">212</span> throw new RetriesExhaustedException("Timed out after " + operationTimeout +<a name="line.212"></a> -<span class="sourceLineNo">213</span> "ms. Get is sent to replicas with startIndex: " + startIndex +<a name="line.213"></a> -<span class="sourceLineNo">214</span> ", endIndex: " + endIndex + ", Locations: " + rl);<a name="line.214"></a> -<span class="sourceLineNo">215</span> }<a name="line.215"></a> -<span class="sourceLineNo">216</span> return f.get();<a name="line.216"></a> -<span class="sourceLineNo">217</span> } catch (ExecutionException e) {<a name="line.217"></a> -<span class="sourceLineNo">218</span> throwEnrichedException(e, retries);<a name="line.218"></a> -<span class="sourceLineNo">219</span> } catch (CancellationException e) {<a name="line.219"></a> -<span class="sourceLineNo">220</span> throw new InterruptedIOException();<a name="line.220"></a> -<span class="sourceLineNo">221</span> } catch (InterruptedException e) {<a name="line.221"></a> -<span class="sourceLineNo">222</span> throw new InterruptedIOException();<a name="line.222"></a> -<span class="sourceLineNo">223</span> } finally {<a name="line.223"></a> -<span class="sourceLineNo">224</span> // We get there because we were interrupted or because one or more of the<a name="line.224"></a> -<span class="sourceLineNo">225</span> // calls succeeded or failed. In all case, we stop all our tasks.<a name="line.225"></a> -<span class="sourceLineNo">226</span> cs.cancelAll();<a name="line.226"></a> -<span class="sourceLineNo">227</span> }<a name="line.227"></a> -<span class="sourceLineNo">228</span><a name="line.228"></a> -<span class="sourceLineNo">229</span> LOG.error("Imposible? Arrive at an unreachable line..."); // unreachable<a name="line.229"></a> -<span class="sourceLineNo">230</span> return null; // unreachable<a name="line.230"></a> -<span class="sourceLineNo">231</span> }<a name="line.231"></a> -<span class="sourceLineNo">232</span><a name="line.232"></a> -<span class="sourceLineNo">233</span> /**<a name="line.233"></a> -<span class="sourceLineNo">234</span> * Extract the real exception from the ExecutionException, and throws what makes more<a name="line.234"></a> -<span class="sourceLineNo">235</span> * sense.<a name="line.235"></a> -<span class="sourceLineNo">236</span> */<a name="line.236"></a> -<span class="sourceLineNo">237</span> static void throwEnrichedException(ExecutionException e, int retries)<a name="line.237"></a> -<span class="sourceLineNo">238</span> throws RetriesExhaustedException, DoNotRetryIOException {<a name="line.238"></a> -<span class="sourceLineNo">239</span> Throwable t = e.getCause();<a name="line.239"></a> -<span class="sourceLineNo">240</span> assert t != null; // That's what ExecutionException is about: holding an exception<a name="line.240"></a> -<span class="sourceLineNo">241</span><a name="line.241"></a> -<span class="sourceLineNo">242</span> if (t instanceof RetriesExhaustedException) {<a name="line.242"></a> -<span class="sourceLineNo">243</span> throw (RetriesExhaustedException) t;<a name="line.243"></a> -<span class="sourceLineNo">244</span> }<a name="line.244"></a> -<span class="sourceLineNo">245</span><a name="line.245"></a> -<span class="sourceLineNo">246</span> if (t instanceof DoNotRetryIOException) {<a name="line.246"></a> -<span class="sourceLineNo">247</span> throw (DoNotRetryIOException) t;<a name="line.247"></a> -<span class="sourceLineNo">248</span> }<a name="line.248"></a> -<span class="sourceLineNo">249</span><a name="line.249"></a> -<span class="sourceLineNo">250</span> RetriesExhaustedException.ThrowableWithExtraContext qt =<a name="line.250"></a> -<span class="sourceLineNo">251</span> new RetriesExhaustedException.ThrowableWithExtraContext(t,<a name="line.251"></a> -<span class="sourceLineNo">252</span> EnvironmentEdgeManager.currentTime(), null);<a name="line.252"></a> -<span class="sourceLineNo">253</span><a name="line.253"></a> -<span class="sourceLineNo">254</span> List<RetriesExhaustedException.ThrowableWithExtraContext> exceptions =<a name="line.254"></a> -<span class="sourceLineNo">255</span> Collections.singletonList(qt);<a name="line.255"></a> -<span class="sourceLineNo">256</span><a name="line.256"></a> -<span class="sourceLineNo">257</span> throw new RetriesExhaustedException(retries, exceptions);<a name="line.257"></a> -<span class="sourceLineNo">258</span> }<a name="line.258"></a> -<span class="sourceLineNo">259</span><a name="line.259"></a> -<span class="sourceLineNo">260</span> /**<a name="line.260"></a> -<span class="sourceLineNo">261</span> * Creates the calls and submit them<a name="line.261"></a> -<span class="sourceLineNo">262</span> *<a name="line.262"></a> -<span class="sourceLineNo">263</span> * @param cs - the completion service to use for submitting<a name="line.263"></a> -<span class="sourceLineNo">264</span> * @param rl - the region locations<a name="line.264"></a> -<span class="sourceLineNo">265</span> * @param min - the id of the first replica, inclusive<a name="line.265"></a> -<span class="sourceLineNo">266</span> * @param max - the id of the last replica, inclusive.<a name="line.266"></a> -<span class="sourceLineNo">267</span> */<a name="line.267"></a> -<span class="sourceLineNo">268</span> private void addCallsForReplica(ResultBoundedCompletionService<Result> cs,<a name="line.268"></a> -<span class="sourceLineNo">269</span> RegionLocations rl, int min, int max) {<a name="line.269"></a> -<span class="sourceLineNo">270</span> for (int id = min; id <= max; id++) {<a name="line.270"></a> -<span class="sourceLineNo">271</span> HRegionLocation hrl = rl.getRegionLocation(id);<a name="line.271"></a> -<span class="sourceLineNo">272</span> ReplicaRegionServerCallable callOnReplica = new ReplicaRegionServerCallable(id, hrl);<a name="line.272"></a> -<span class="sourceLineNo">273</span> cs.submit(callOnReplica, operationTimeout, id);<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><a name="line.276"></a> -<span class="sourceLineNo">277</span> static RegionLocations getRegionLocations(boolean useCache, int replicaId,<a name="line.277"></a> -<span class="sourceLineNo">278</span> ClusterConnection cConnection, TableName tableName, byte[] row)<a name="line.278"></a> -<span class="sourceLineNo">279</span> throws RetriesExhaustedException, DoNotRetryIOException, InterruptedIOException {<a name="line.279"></a> -<span class="sourceLineNo">280</span><a name="line.280"></a> -<span class="sourceLineNo">281</span> RegionLocations rl;<a name="line.281"></a> -<span class="sourceLineNo">282</span> try {<a name="line.282"></a> -<span class="sourceLineNo">283</span> if (!useCache) {<a name="line.283"></a> -<span class="sourceLineNo">284</span> rl = cConnection.relocateRegion(tableName, row, replicaId);<a name="line.284"></a> -<span class="sourceLineNo">285</span> } else {<a name="line.285"></a> -<span class="sourceLineNo">286</span> rl = cConnection.locateRegion(tableName, row, useCache, true, replicaId);<a name="line.286"></a> -<span class="sourceLineNo">287</span> }<a name="line.287"></a> -<span class="sourceLineNo">288</span> } catch (DoNotRetryIOException | InterruptedIOException | RetriesExhaustedException e) {<a name="line.288"></a> -<span class="sourceLineNo">289</span> throw e;<a name="line.289"></a> -<span class="sourceLineNo">290</span> } catch (IOException e) {<a name="line.290"></a> -<span class="sourceLineNo">291</span> throw new RetriesExhaustedException("Can't get the location", e);<a name="line.291"></a> -<span class="sourceLineNo">292</span> }<a name="line.292"></a> -<span class="sourceLineNo">293</span> if (rl == null) {<a name="line.293"></a> -<span class="sourceLineNo">294</span> throw new RetriesExhaustedException("Can't get the locations");<a name="line.294"></a> -<span class="sourceLineNo">295</span> }<a name="line.295"></a> -<span class="sourceLineNo">296</span><a name="line.296"></a> -<span class="sourceLineNo">297</span> return rl;<a name="line.297"></a> -<span class="sourceLineNo">298</span> }<a name="line.298"></a> -<span class="sourceLineNo">299</span>}<a name="line.299"></a> +<span class="sourceLineNo">173</span> RegionLocations rl = null;<a name="line.173"></a> +<span class="sourceLineNo">174</span> boolean skipPrimary = false;<a name="line.174"></a> +<span class="sourceLineNo">175</span> try {<a name="line.175"></a> +<span class="sourceLineNo">176</span> rl = getRegionLocations(true,<a name="line.176"></a> +<span class="sourceLineNo">177</span> (isTargetReplicaSpecified ? get.getReplicaId() : RegionReplicaUtil.DEFAULT_REPLICA_ID),<a name="line.177"></a> +<span class="sourceLineNo">178</span> cConnection, tableName, get.getRow());<a name="line.178"></a> +<span class="sourceLineNo">179</span> } catch (RetriesExhaustedException | DoNotRetryIOException e) {<a name="line.179"></a> +<span class="sourceLineNo">180</span> // When there is no specific replica id specified. It just needs to load all replicas.<a name="line.180"></a> +<span class="sourceLineNo">181</span> if (isTargetReplicaSpecified) {<a name="line.181"></a> +<span class="sourceLineNo">182</span> throw e;<a name="line.182"></a> +<span class="sourceLineNo">183</span> } else {<a name="line.183"></a> +<span class="sourceLineNo">184</span> // We cannot get the primary replica location, it is possible that the region<a name="line.184"></a> +<span class="sourceLineNo">185</span> // server hosting meta is down, it needs to proceed to try cached replicas.<a name="line.185"></a> +<span class="sourceLineNo">186</span> if (cConnection instanceof ConnectionImplementation) {<a name="line.186"></a> +<span class="sourceLineNo">187</span> rl = ((ConnectionImplementation)cConnection).getCachedLocation(tableName, get.getRow());<a name="line.187"></a> +<span class="sourceLineNo">188</span> if (rl == null) {<a name="line.188"></a> +<span class="sourceLineNo">189</span> // No cached locations<a name="line.189"></a> +<span class="sourceLineNo">190</span> throw e;<a name="line.190"></a> +<span class="sourceLineNo">191</span> }<a name="line.191"></a> +<span class="sourceLineNo">192</span><a name="line.192"></a> +<span class="sourceLineNo">193</span> // Primary replica location is not known, skip primary replica<a name="line.193"></a> +<span class="sourceLineNo">194</span> skipPrimary = true;<a name="line.194"></a> +<span class="sourceLineNo">195</span> } else {<a name="line.195"></a> +<span class="sourceLineNo">196</span> // For completeness<a name="line.196"></a> +<span class="sourceLineNo">197</span> throw e;<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> }<a name="line.200"></a> +<span class="sourceLineNo">201</span><a name="line.201"></a> +<span class="sourceLineNo">202</span> final ResultBoundedCompletionService<Result> cs =<a name="line.202"></a> +<span class="sourceLineNo">203</span> new ResultBoundedCompletionService<>(this.rpcRetryingCallerFactory, pool, rl.size());<a name="line.203"></a> +<span class="sourceLineNo">204</span> int startIndex = 0;<a name="line.204"></a> +<span class="sourceLineNo">205</span> int endIndex = rl.size();<a name="line.205"></a> +<span class="sourceLineNo">206</span><a name="line.206"></a> +<span class="sourceLineNo">207</span> if(isTargetReplicaSpecified) {<a name="line.207"></a> +<span class="sourceLineNo">208</span> addCallsForReplica(cs, rl, get.getReplicaId(), get.getReplicaId());<a name="line.208"></a> +<span class="sourceLineNo">209</span> endIndex = 1;<a name="line.209"></a> +<span class="sourceLineNo">210</span> } else {<a name="line.210"></a> +<span class="sourceLineNo">211</span> if (!skipPrimary) {<a name="line.211"></a> +<span class="sourceLineNo">212</span> addCallsForReplica(cs, rl, 0, 0);<a name="line.212"></a> +<span class="sourceLineNo">213</span> try {<a name="line.213"></a> +<span class="sourceLineNo">214</span> // wait for the timeout to see whether the primary responds back<a name="line.214"></a> +<span class="sourceLineNo">215</span> Future<Result> f = cs.poll(timeBeforeReplicas, TimeUnit.MICROSECONDS); 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Arrive at an unreachable line..."); // unreachable<a name="line.261"></a> +<span class="sourceLineNo">262</span> return null; // unreachable<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> /**<a name="line.265"></a> +<span class="sourceLineNo">266</span> * Extract the real exception from the ExecutionException, and throws what makes more<a name="line.266"></a> +<span class="sourceLineNo">267</span> * sense.<a name="line.267"></a> +<span class="sourceLineNo">268</span> */<a name="line.268"></a> +<span class="sourceLineNo">269</span> static void throwEnrichedException(ExecutionException e, int retries)<a name="line.269"></a> +<span class="sourceLineNo">270</span> throws RetriesExhaustedException, DoNotRetryIOException {<a name="line.270"></a> +<span class="sourceLineNo">271</span> Throwable t = e.getCause();<a name="line.271"></a> +<span class="sourceLineNo">272</span> assert t != null; 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