http://git-wip-us.apache.org/repos/asf/hbase-site/blob/bd675fa3/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRequestFutureImpl.SingleServerRequestRunnable.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRequestFutureImpl.SingleServerRequestRunnable.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRequestFutureImpl.SingleServerRequestRunnable.html index c27b109..4160a88 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRequestFutureImpl.SingleServerRequestRunnable.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRequestFutureImpl.SingleServerRequestRunnable.html @@ -105,7 +105,7 @@ <span class="sourceLineNo">097</span> try {<a name="line.97"></a> <span class="sourceLineNo">098</span> done = waitUntilDone(startTime * 1000L + asyncProcess.primaryCallTimeoutMicroseconds);<a name="line.98"></a> <span class="sourceLineNo">099</span> } catch (InterruptedException ex) {<a name="line.99"></a> -<span class="sourceLineNo">100</span> LOG.error("Replica thread was interrupted - no replica calls: " + ex.getMessage());<a name="line.100"></a> +<span class="sourceLineNo">100</span> LOG.error("Replica thread interrupted - no replica calls {}", ex.getMessage());<a name="line.100"></a> <span class="sourceLineNo">101</span> return;<a name="line.101"></a> <span class="sourceLineNo">102</span> }<a name="line.102"></a> <span class="sourceLineNo">103</span> }<a name="line.103"></a> @@ -149,7 +149,7 @@ <span class="sourceLineNo">141</span> if (loc == null) return;<a name="line.141"></a> <span class="sourceLineNo">142</span> HRegionLocation[] locs = loc.getRegionLocations();<a name="line.142"></a> <span class="sourceLineNo">143</span> if (locs.length == 1) {<a name="line.143"></a> -<span class="sourceLineNo">144</span> LOG.warn("No replicas found for " + action.getAction());<a name="line.144"></a> +<span class="sourceLineNo">144</span> LOG.warn("No replicas found for {}", action.getAction());<a name="line.144"></a> <span class="sourceLineNo">145</span> return;<a name="line.145"></a> <span class="sourceLineNo">146</span> }<a name="line.146"></a> <span class="sourceLineNo">147</span> synchronized (replicaResultLock) {<a name="line.147"></a> @@ -230,8 +230,8 @@ <span class="sourceLineNo">222</span> return;<a name="line.222"></a> <span class="sourceLineNo">223</span> } catch (Throwable t) {<a name="line.223"></a> <span class="sourceLineNo">224</span> // This should not happen. Let's log & retry anyway.<a name="line.224"></a> -<span class="sourceLineNo">225</span> LOG.error("#" + asyncProcess.id + ", Caught throwable while calling. This is unexpected." +<a name="line.225"></a> -<span class="sourceLineNo">226</span> " Retrying. Server is " + server + ", tableName=" + tableName, t);<a name="line.226"></a> +<span class="sourceLineNo">225</span> LOG.error("id=" + asyncProcess.id + ", caught throwable. Unexpected." +<a name="line.225"></a> +<span class="sourceLineNo">226</span> " Retrying. Server=" + server + ", tableName=" + tableName, t);<a name="line.226"></a> <span class="sourceLineNo">227</span> receiveGlobalFailure(multiAction, server, numAttempt, t);<a name="line.227"></a> <span class="sourceLineNo">228</span> return;<a name="line.228"></a> <span class="sourceLineNo">229</span> }<a name="line.229"></a> @@ -247,1036 +247,1035 @@ <span class="sourceLineNo">239</span> }<a name="line.239"></a> <span class="sourceLineNo">240</span> } catch (Throwable t) {<a name="line.240"></a> <span class="sourceLineNo">241</span> // Something really bad happened. We are on the send thread that will now die.<a name="line.241"></a> -<span class="sourceLineNo">242</span> LOG.error("Internal AsyncProcess #" + asyncProcess.id + " error for "<a name="line.242"></a> -<span class="sourceLineNo">243</span> + tableName + " processing for " + server, t);<a name="line.243"></a> -<span class="sourceLineNo">244</span> throw new RuntimeException(t);<a name="line.244"></a> -<span class="sourceLineNo">245</span> } finally {<a name="line.245"></a> -<span class="sourceLineNo">246</span> asyncProcess.decTaskCounters(multiAction.getRegions(), server);<a name="line.246"></a> -<span class="sourceLineNo">247</span> if (callsInProgress != null && callable != null && res != null) {<a name="line.247"></a> -<span class="sourceLineNo">248</span> callsInProgress.remove(callable);<a name="line.248"></a> -<span class="sourceLineNo">249</span> }<a name="line.249"></a> -<span class="sourceLineNo">250</span> }<a name="line.250"></a> -<span class="sourceLineNo">251</span> }<a name="line.251"></a> -<span class="sourceLineNo">252</span> }<a name="line.252"></a> -<span class="sourceLineNo">253</span><a name="line.253"></a> -<span class="sourceLineNo">254</span> private final Batch.Callback<CResult> callback;<a name="line.254"></a> -<span class="sourceLineNo">255</span> private final BatchErrors errors;<a name="line.255"></a> -<span class="sourceLineNo">256</span> private final ConnectionImplementation.ServerErrorTracker errorsByServer;<a name="line.256"></a> -<span class="sourceLineNo">257</span> private final ExecutorService pool;<a name="line.257"></a> -<span class="sourceLineNo">258</span> private final Set<CancellableRegionServerCallable> callsInProgress;<a name="line.258"></a> +<span class="sourceLineNo">242</span> LOG.error("id=" + asyncProcess.id + " error for " + tableName + " processing " + server, t);<a name="line.242"></a> +<span class="sourceLineNo">243</span> throw new RuntimeException(t);<a name="line.243"></a> +<span class="sourceLineNo">244</span> } finally {<a name="line.244"></a> +<span class="sourceLineNo">245</span> asyncProcess.decTaskCounters(multiAction.getRegions(), server);<a name="line.245"></a> +<span class="sourceLineNo">246</span> if (callsInProgress != null && callable != null && res != null) {<a name="line.246"></a> +<span class="sourceLineNo">247</span> callsInProgress.remove(callable);<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> }<a name="line.250"></a> +<span class="sourceLineNo">251</span> }<a name="line.251"></a> +<span class="sourceLineNo">252</span><a name="line.252"></a> +<span class="sourceLineNo">253</span> private final Batch.Callback<CResult> callback;<a name="line.253"></a> +<span class="sourceLineNo">254</span> private final BatchErrors errors;<a name="line.254"></a> +<span class="sourceLineNo">255</span> private final ConnectionImplementation.ServerErrorTracker errorsByServer;<a name="line.255"></a> +<span class="sourceLineNo">256</span> private final ExecutorService pool;<a name="line.256"></a> +<span class="sourceLineNo">257</span> private final Set<CancellableRegionServerCallable> callsInProgress;<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> private final TableName tableName;<a name="line.261"></a> -<span class="sourceLineNo">262</span> private final AtomicLong actionsInProgress = new AtomicLong(-1);<a name="line.262"></a> -<span class="sourceLineNo">263</span> /**<a name="line.263"></a> -<span class="sourceLineNo">264</span> * The lock controls access to results. It is only held when populating results where<a name="line.264"></a> -<span class="sourceLineNo">265</span> * there might be several callers (eventual consistency gets). For other requests,<a name="line.265"></a> -<span class="sourceLineNo">266</span> * there's one unique call going on per result index.<a name="line.266"></a> -<span class="sourceLineNo">267</span> */<a name="line.267"></a> -<span class="sourceLineNo">268</span> private final Object replicaResultLock = new Object();<a name="line.268"></a> -<span class="sourceLineNo">269</span> /**<a name="line.269"></a> -<span class="sourceLineNo">270</span> * Result array. Null if results are not needed. Otherwise, each index corresponds to<a name="line.270"></a> -<span class="sourceLineNo">271</span> * the action index in initial actions submitted. For most request types, has null-s for<a name="line.271"></a> -<span class="sourceLineNo">272</span> * requests that are not done, and result/exception for those that are done.<a name="line.272"></a> -<span class="sourceLineNo">273</span> * For eventual-consistency gets, initially the same applies; at some point, replica calls<a name="line.273"></a> -<span class="sourceLineNo">274</span> * might be started, and ReplicaResultState is put at the corresponding indices. The<a name="line.274"></a> -<span class="sourceLineNo">275</span> * returning calls check the type to detect when this is the case. After all calls are done,<a name="line.275"></a> -<span class="sourceLineNo">276</span> * ReplicaResultState-s are replaced with results for the user.<a name="line.276"></a> -<span class="sourceLineNo">277</span> */<a name="line.277"></a> -<span class="sourceLineNo">278</span> private final Object[] results;<a name="line.278"></a> -<span class="sourceLineNo">279</span> /**<a name="line.279"></a> -<span class="sourceLineNo">280</span> * Indices of replica gets in results. If null, all or no actions are replica-gets.<a name="line.280"></a> -<span class="sourceLineNo">281</span> */<a name="line.281"></a> -<span class="sourceLineNo">282</span> private final int[] replicaGetIndices;<a name="line.282"></a> -<span class="sourceLineNo">283</span> private final boolean hasAnyReplicaGets;<a name="line.283"></a> -<span class="sourceLineNo">284</span> private final long nonceGroup;<a name="line.284"></a> -<span class="sourceLineNo">285</span> private final CancellableRegionServerCallable currentCallable;<a name="line.285"></a> -<span class="sourceLineNo">286</span> private final int operationTimeout;<a name="line.286"></a> -<span class="sourceLineNo">287</span> private final int rpcTimeout;<a name="line.287"></a> -<span class="sourceLineNo">288</span> private final AsyncProcess asyncProcess;<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> * For {@link AsyncRequestFutureImpl#manageError(int, Row, Retry, Throwable, ServerName)}. Only<a name="line.291"></a> -<span class="sourceLineNo">292</span> * used to make logging more clear, we don't actually care why we don't retry.<a name="line.292"></a> -<span class="sourceLineNo">293</span> */<a name="line.293"></a> -<span class="sourceLineNo">294</span> public enum Retry {<a name="line.294"></a> -<span class="sourceLineNo">295</span> YES,<a name="line.295"></a> -<span class="sourceLineNo">296</span> NO_LOCATION_PROBLEM,<a name="line.296"></a> -<span class="sourceLineNo">297</span> NO_NOT_RETRIABLE,<a name="line.297"></a> -<span class="sourceLineNo">298</span> NO_RETRIES_EXHAUSTED,<a name="line.298"></a> -<span class="sourceLineNo">299</span> NO_OTHER_SUCCEEDED<a name="line.299"></a> -<span class="sourceLineNo">300</span> }<a name="line.300"></a> -<span class="sourceLineNo">301</span><a name="line.301"></a> -<span class="sourceLineNo">302</span> /** Sync point for calls to multiple replicas for the same user request (Get).<a name="line.302"></a> -<span class="sourceLineNo">303</span> * Created and put in the results array (we assume replica calls require results) when<a name="line.303"></a> -<span class="sourceLineNo">304</span> * the replica calls are launched. See results for details of this process.<a name="line.304"></a> -<span class="sourceLineNo">305</span> * POJO, all fields are public. To modify them, the object itself is locked. */<a name="line.305"></a> -<span class="sourceLineNo">306</span> private static class ReplicaResultState {<a name="line.306"></a> -<span class="sourceLineNo">307</span> public ReplicaResultState(int callCount) {<a name="line.307"></a> -<span class="sourceLineNo">308</span> this.callCount = callCount;<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> /** Number of calls outstanding, or 0 if a call succeeded (even with others outstanding). */<a name="line.311"></a> -<span class="sourceLineNo">312</span> int callCount;<a name="line.312"></a> -<span class="sourceLineNo">313</span> /** Errors for which it is not decided whether we will report them to user. If one of the<a name="line.313"></a> -<span class="sourceLineNo">314</span> * calls succeeds, we will discard the errors that may have happened in the other calls. */<a name="line.314"></a> -<span class="sourceLineNo">315</span> BatchErrors replicaErrors = null;<a name="line.315"></a> -<span class="sourceLineNo">316</span><a name="line.316"></a> -<span class="sourceLineNo">317</span> @Override<a name="line.317"></a> -<span class="sourceLineNo">318</span> public String toString() {<a name="line.318"></a> -<span class="sourceLineNo">319</span> return "[call count " + callCount + "; errors " + replicaErrors + "]";<a name="line.319"></a> -<span class="sourceLineNo">320</span> }<a name="line.320"></a> -<span class="sourceLineNo">321</span> }<a name="line.321"></a> -<span class="sourceLineNo">322</span><a name="line.322"></a> -<span class="sourceLineNo">323</span> public AsyncRequestFutureImpl(AsyncProcessTask task, List<Action> actions,<a name="line.323"></a> -<span class="sourceLineNo">324</span> long nonceGroup, AsyncProcess asyncProcess) {<a name="line.324"></a> -<span class="sourceLineNo">325</span> this.pool = task.getPool();<a name="line.325"></a> -<span class="sourceLineNo">326</span> this.callback = task.getCallback();<a name="line.326"></a> -<span class="sourceLineNo">327</span> this.nonceGroup = nonceGroup;<a name="line.327"></a> -<span class="sourceLineNo">328</span> this.tableName = task.getTableName();<a name="line.328"></a> -<span class="sourceLineNo">329</span> this.actionsInProgress.set(actions.size());<a name="line.329"></a> -<span class="sourceLineNo">330</span> if (task.getResults() == null) {<a name="line.330"></a> -<span class="sourceLineNo">331</span> results = task.getNeedResults() ? new Object[actions.size()] : null;<a name="line.331"></a> -<span class="sourceLineNo">332</span> } else {<a name="line.332"></a> -<span class="sourceLineNo">333</span> if (task.getResults().length != actions.size()) {<a name="line.333"></a> -<span class="sourceLineNo">334</span> throw new AssertionError("results.length");<a name="line.334"></a> -<span class="sourceLineNo">335</span> }<a name="line.335"></a> -<span class="sourceLineNo">336</span> this.results = task.getResults();<a name="line.336"></a> -<span class="sourceLineNo">337</span> for (int i = 0; i != this.results.length; ++i) {<a name="line.337"></a> -<span class="sourceLineNo">338</span> results[i] = null;<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> List<Integer> replicaGetIndices = null;<a name="line.341"></a> -<span class="sourceLineNo">342</span> boolean hasAnyReplicaGets = false;<a name="line.342"></a> -<span class="sourceLineNo">343</span> if (results != null) {<a name="line.343"></a> -<span class="sourceLineNo">344</span> // Check to see if any requests might require replica calls.<a name="line.344"></a> -<span class="sourceLineNo">345</span> // We expect that many requests will consist of all or no multi-replica gets; in such<a name="line.345"></a> -<span class="sourceLineNo">346</span> // cases we would just use a boolean (hasAnyReplicaGets). If there's a mix, we will<a name="line.346"></a> -<span class="sourceLineNo">347</span> // store the list of action indexes for which replica gets are possible, and set<a name="line.347"></a> -<span class="sourceLineNo">348</span> // hasAnyReplicaGets to true.<a name="line.348"></a> -<span class="sourceLineNo">349</span> boolean hasAnyNonReplicaReqs = false;<a name="line.349"></a> -<span class="sourceLineNo">350</span> int posInList = 0;<a name="line.350"></a> -<span class="sourceLineNo">351</span> for (Action action : actions) {<a name="line.351"></a> -<span class="sourceLineNo">352</span> boolean isReplicaGet = AsyncProcess.isReplicaGet(action.getAction());<a name="line.352"></a> -<span class="sourceLineNo">353</span> if (isReplicaGet) {<a name="line.353"></a> -<span class="sourceLineNo">354</span> hasAnyReplicaGets = true;<a name="line.354"></a> -<span class="sourceLineNo">355</span> if (hasAnyNonReplicaReqs) { // Mixed case<a name="line.355"></a> -<span class="sourceLineNo">356</span> if (replicaGetIndices == null) {<a name="line.356"></a> -<span class="sourceLineNo">357</span> replicaGetIndices = new ArrayList<>(actions.size() - 1);<a name="line.357"></a> -<span class="sourceLineNo">358</span> }<a name="line.358"></a> -<span class="sourceLineNo">359</span> replicaGetIndices.add(posInList);<a name="line.359"></a> -<span class="sourceLineNo">360</span> }<a name="line.360"></a> -<span class="sourceLineNo">361</span> } else if (!hasAnyNonReplicaReqs) {<a name="line.361"></a> -<span class="sourceLineNo">362</span> // The first non-multi-replica request in the action list.<a name="line.362"></a> -<span class="sourceLineNo">363</span> hasAnyNonReplicaReqs = true;<a name="line.363"></a> -<span class="sourceLineNo">364</span> if (posInList > 0) {<a name="line.364"></a> -<span class="sourceLineNo">365</span> // Add all the previous requests to the index lists. 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class="sourceLineNo">388</span> new ConcurrentHashMap<CancellableRegionServerCallable, Boolean>());<a name="line.388"></a> -<span class="sourceLineNo">389</span> this.asyncProcess = asyncProcess;<a name="line.389"></a> -<span class="sourceLineNo">390</span> this.errorsByServer = createServerErrorTracker();<a name="line.390"></a> -<span class="sourceLineNo">391</span> this.errors = new BatchErrors();<a name="line.391"></a> -<span class="sourceLineNo">392</span> this.operationTimeout = task.getOperationTimeout();<a name="line.392"></a> -<span class="sourceLineNo">393</span> this.rpcTimeout = task.getRpcTimeout();<a name="line.393"></a> -<span class="sourceLineNo">394</span> this.currentCallable = task.getCallable();<a name="line.394"></a> -<span class="sourceLineNo">395</span> if (task.getCallable() == null) {<a name="line.395"></a> -<span class="sourceLineNo">396</span> tracker = new RetryingTimeTracker().start();<a name="line.396"></a> -<span class="sourceLineNo">397</span> }<a 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actionsByServer = new HashMap<>();<a name="line.418"></a> -<span class="sourceLineNo">419</span><a name="line.419"></a> -<span class="sourceLineNo">420</span> boolean isReplica = false;<a name="line.420"></a> -<span class="sourceLineNo">421</span> List<Action> unknownReplicaActions = null;<a name="line.421"></a> -<span class="sourceLineNo">422</span> for (Action action : currentActions) {<a name="line.422"></a> -<span class="sourceLineNo">423</span> RegionLocations locs = findAllLocationsOrFail(action, true);<a name="line.423"></a> -<span class="sourceLineNo">424</span> if (locs == null) continue;<a name="line.424"></a> -<span class="sourceLineNo">425</span> boolean isReplicaAction = !RegionReplicaUtil.isDefaultReplica(action.getReplicaId());<a name="line.425"></a> -<span class="sourceLineNo">426</span> if (isReplica && !isReplicaAction) {<a name="line.426"></a> -<span class="sourceLineNo">427</span> // This is the property of the current implementation, not a requirement.<a 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name="line.437"></a> -<span class="sourceLineNo">438</span> } else {<a name="line.438"></a> -<span class="sourceLineNo">439</span> // TODO: relies on primary location always being fetched<a name="line.439"></a> -<span class="sourceLineNo">440</span> manageLocationError(action, null);<a name="line.440"></a> -<span class="sourceLineNo">441</span> }<a name="line.441"></a> -<span class="sourceLineNo">442</span> } else {<a name="line.442"></a> -<span class="sourceLineNo">443</span> byte[] regionName = loc.getRegionInfo().getRegionName();<a name="line.443"></a> -<span class="sourceLineNo">444</span> AsyncProcess.addAction(loc.getServerName(), regionName, action, actionsByServer, nonceGroup);<a name="line.444"></a> -<span class="sourceLineNo">445</span> }<a name="line.445"></a> -<span class="sourceLineNo">446</span> }<a name="line.446"></a> -<span class="sourceLineNo">447</span> boolean doStartReplica = (numAttempt == 1 && !isReplica && hasAnyReplicaGets);<a name="line.447"></a> -<span class="sourceLineNo">448</span> boolean hasUnknown = unknownReplicaActions != null && !unknownReplicaActions.isEmpty();<a name="line.448"></a> -<span class="sourceLineNo">449</span><a name="line.449"></a> -<span class="sourceLineNo">450</span> if (!actionsByServer.isEmpty()) {<a name="line.450"></a> -<span class="sourceLineNo">451</span> // If this is a first attempt to group and send, no replicas, we need replica thread.<a name="line.451"></a> -<span class="sourceLineNo">452</span> sendMultiAction(actionsByServer, numAttempt, (doStartReplica && !hasUnknown)<a name="line.452"></a> -<span class="sourceLineNo">453</span> ? currentActions : null, numAttempt > 1 && !hasUnknown);<a name="line.453"></a> -<span class="sourceLineNo">454</span> }<a name="line.454"></a> -<span class="sourceLineNo">455</span><a name="line.455"></a> -<span class="sourceLineNo">456</span> if (hasUnknown) {<a name="line.456"></a> -<span class="sourceLineNo">457</span> actionsByServer = new HashMap<>();<a 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numAttempt) {<a name="line.575"></a> -<span class="sourceLineNo">576</span> // no stats to manage, just do the standard action<a name="line.576"></a> -<span class="sourceLineNo">577</span> if (asyncProcess.connection.getStatisticsTracker() == null) {<a name="line.577"></a> -<span class="sourceLineNo">578</span> if (asyncProcess.connection.getConnectionMetrics() != null) {<a name="line.578"></a> -<span class="sourceLineNo">579</span> asyncProcess.connection.getConnectionMetrics().incrNormalRunners();<a name="line.579"></a> -<span class="sourceLineNo">580</span> }<a name="line.580"></a> -<span class="sourceLineNo">581</span> asyncProcess.incTaskCounters(multiAction.getRegions(), server);<a name="line.581"></a> -<span class="sourceLineNo">582</span> SingleServerRequestRunnable runnable = createSingleServerRequest(<a name="line.582"></a> -<span class="sourceLineNo">583</span> multiAction, numAttempt, server, callsInProgress);<a name="line.583"></a> -<span class="sourceLineNo">584</span> 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class="sourceLineNo">606</span><a name="line.606"></a> -<span class="sourceLineNo">607</span> List<Runnable> toReturn = new ArrayList<>(actions.size());<a name="line.607"></a> -<span class="sourceLineNo">608</span> for (DelayingRunner runner : actions.values()) {<a name="line.608"></a> -<span class="sourceLineNo">609</span> asyncProcess.incTaskCounters(runner.getActions().getRegions(), server);<a name="line.609"></a> -<span class="sourceLineNo">610</span> String traceText = "AsyncProcess.sendMultiAction";<a name="line.610"></a> -<span class="sourceLineNo">611</span> Runnable runnable = createSingleServerRequest(runner.getActions(), numAttempt, server, callsInProgress);<a name="line.611"></a> -<span class="sourceLineNo">612</span> // use a delay runner only if we need to sleep for some time<a name="line.612"></a> -<span class="sourceLineNo">613</span> if (runner.getSleepTime() > 0) {<a name="line.613"></a> -<span class="sourceLineNo">614</span> runner.setRunner(runnable);<a 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-<span class="sourceLineNo">886</span> } else {<a name="line.886"></a> -<span class="sourceLineNo">887</span> resubmit(server, toReplay, numAttempt, failureCount, lastException);<a name="line.887"></a> -<span class="sourceLineNo">888</span> }<a name="line.888"></a> -<span class="sourceLineNo">889</span> }<a name="line.889"></a> -<span class="sourceLineNo">890</span><a name="line.890"></a> -<span class="sourceLineNo">891</span> private void updateCachedLocations(ServerName server, byte[] regionName, byte[] row,<a name="line.891"></a> -<span class="sourceLineNo">892</span> Throwable rowException) {<a name="line.892"></a> -<span class="sourceLineNo">893</span> if (tableName == null) {<a name="line.893"></a> -<span class="sourceLineNo">894</span> return;<a name="line.894"></a> -<span class="sourceLineNo">895</span> }<a name="line.895"></a> -<span class="sourceLineNo">896</span> try {<a name="line.896"></a> -<span class="sourceLineNo">897</span> asyncProcess.connection<a name="line.897"></a> -<span class="sourceLineNo">898</span> .updateCachedLocations(tableName, regionName, row, rowException, server);<a name="line.898"></a> -<span class="sourceLineNo">899</span> } catch (Throwable ex) {<a name="line.899"></a> -<span class="sourceLineNo">900</span> // That should never happen, but if it did, we want to make sure<a name="line.900"></a> -<span class="sourceLineNo">901</span> // we still process errors<a name="line.901"></a> -<span class="sourceLineNo">902</span> LOG.error("Couldn't update cached region locations: " + ex);<a name="line.902"></a> -<span class="sourceLineNo">903</span> }<a name="line.903"></a> -<span class="sourceLineNo">904</span> }<a name="line.904"></a> -<span class="sourceLineNo">905</span><a name="line.905"></a> -<span class="sourceLineNo">906</span> private void invokeCallBack(byte[] regionName, byte[] row, CResult result) {<a name="line.906"></a> -<span class="sourceLineNo">907</span> if (callback != null) {<a name="line.907"></a> -<span class="sourceLineNo">908</span> try {<a name="line.908"></a> -<span class="sourceLineNo">909</span> //noinspection unchecked<a name="line.909"></a> -<span class="sourceLineNo">910</span> // TODO: would callback expect a replica region name if it gets one?<a name="line.910"></a> -<span class="sourceLineNo">911</span> this.callback.update(regionName, row, result);<a name="line.911"></a> -<span class="sourceLineNo">912</span> } catch (Throwable t) {<a name="line.912"></a> -<span class="sourceLineNo">913</span> LOG.error("User callback threw an exception for "<a name="line.913"></a> -<span class="sourceLineNo">914</span> + Bytes.toStringBinary(regionName) + ", ignoring", t);<a name="line.914"></a> -<span class="sourceLineNo">915</span> }<a name="line.915"></a> -<span class="sourceLineNo">916</span> }<a name="line.916"></a> -<span class="sourceLineNo">917</span> }<a name="line.917"></a> -<span class="sourceLineNo">918</span><a name="line.918"></a> -<span class="sourceLineNo">919</span> private void cleanServerCache(ServerName server, Throwable regionException) {<a name="line.919"></a> -<span class="sourceLineNo">920</span> if (tableName == null && ClientExceptionsUtil.isMetaClearingException(regionException)) {<a name="line.920"></a> -<span class="sourceLineNo">921</span> // For multi-actions, we don't have a table name, but we want to make sure to clear the<a name="line.921"></a> -<span class="sourceLineNo">922</span> // cache in case there were location-related exceptions. 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It is only held when populating results where<a name="line.263"></a> +<span class="sourceLineNo">264</span> * there might be several callers (eventual consistency gets). For other requests,<a name="line.264"></a> +<span class="sourceLineNo">265</span> * there's one unique call going on per result index.<a name="line.265"></a> +<span class="sourceLineNo">266</span> */<a name="line.266"></a> +<span class="sourceLineNo">267</span> private final Object replicaResultLock = new Object();<a name="line.267"></a> +<span class="sourceLineNo">268</span> /**<a name="line.268"></a> +<span class="sourceLineNo">269</span> * Result array. Null if results are not needed. Otherwise, each index corresponds to<a name="line.269"></a> +<span class="sourceLineNo">270</span> * the action index in initial actions submitted. 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Only<a name="line.290"></a> +<span class="sourceLineNo">291</span> * used to make logging more clear, we don't actually care why we don't retry.<a name="line.291"></a> +<span class="sourceLineNo">292</span> */<a name="line.292"></a> +<span class="sourceLineNo">293</span> public enum Retry {<a name="line.293"></a> +<span class="sourceLineNo">294</span> YES,<a name="line.294"></a> +<span class="sourceLineNo">295</span> NO_LOCATION_PROBLEM,<a name="line.295"></a> +<span class="sourceLineNo">296</span> NO_NOT_RETRIABLE,<a name="line.296"></a> +<span class="sourceLineNo">297</span> NO_RETRIES_EXHAUSTED,<a name="line.297"></a> +<span class="sourceLineNo">298</span> NO_OTHER_SUCCEEDED<a name="line.298"></a> +<span class="sourceLineNo">299</span> }<a name="line.299"></a> +<span class="sourceLineNo">300</span><a name="line.300"></a> +<span class="sourceLineNo">301</span> /** Sync point for calls to multiple replicas for the same user request (Get).<a name="line.301"></a> +<span class="sourceLineNo">302</span> * Created and put in the results array (we assume replica calls require results) when<a name="line.302"></a> +<span class="sourceLineNo">303</span> * the replica calls are launched. See results for details of this process.<a name="line.303"></a> +<span class="sourceLineNo">304</span> * POJO, all fields are public. To modify them, the object itself is locked. */<a name="line.304"></a> +<span class="sourceLineNo">305</span> private static class ReplicaResultState {<a name="line.305"></a> +<span class="sourceLineNo">306</span> public ReplicaResultState(int callCount) {<a name="line.306"></a> +<span class="sourceLineNo">307</span> this.callCount = callCount;<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> /** Number of calls outstanding, or 0 if a call succeeded (even with others outstanding). */<a name="line.310"></a> +<span class="sourceLineNo">311</span> int callCount;<a name="line.311"></a> +<span class="sourceLineNo">312</span> /** Errors for which it is not decided whether we will report them to user. If one of the<a name="line.312"></a> +<span class="sourceLineNo">313</span> * calls succeeds, we will discard the errors that may have happened in the other calls. */<a name="line.313"></a> +<span class="sourceLineNo">314</span> BatchErrors replicaErrors = null;<a name="line.314"></a> +<span class="sourceLineNo">315</span><a name="line.315"></a> +<span class="sourceLineNo">316</span> @Override<a name="line.316"></a> +<span class="sourceLineNo">317</span> public String toString() {<a name="line.317"></a> +<span class="sourceLineNo">318</span> return "[call count " + callCount + "; errors " + replicaErrors + "]";<a name="line.318"></a> +<span class="sourceLineNo">319</span> }<a name="line.319"></a> +<span class="sourceLineNo">320</span> }<a name="line.320"></a> +<span class="sourceLineNo">321</span><a name="line.321"></a> +<span class="sourceLineNo">322</span> public AsyncRequestFutureImpl(AsyncProcessTask task, List<Action> actions,<a name="line.322"></a> +<span class="sourceLineNo">323</span> long nonceGroup, AsyncProcess asyncProcess) {<a name="line.323"></a> +<span class="sourceLineNo">324</span> this.pool = task.getPool();<a name="line.324"></a> +<span class="sourceLineNo">325</span> this.callback = task.getCallback();<a name="line.325"></a> +<span class="sourceLineNo">326</span> this.nonceGroup = nonceGroup;<a name="line.326"></a> +<span class="sourceLineNo">327</span> this.tableName = task.getTableName();<a name="line.327"></a> +<span class="sourceLineNo">328</span> this.actionsInProgress.set(actions.size());<a name="line.328"></a> +<span class="sourceLineNo">329</span> if (task.getResults() == null) {<a name="line.329"></a> +<span class="sourceLineNo">330</span> results = task.getNeedResults() ? new Object[actions.size()] : null;<a name="line.330"></a> +<span class="sourceLineNo">331</span> } else {<a name="line.331"></a> +<span class="sourceLineNo">332</span> if (task.getResults().length != actions.size()) {<a name="line.332"></a> +<span class="sourceLineNo">333</span> throw new AssertionError("results.length");<a name="line.333"></a> +<span class="sourceLineNo">334</span> }<a name="line.334"></a> +<span class="sourceLineNo">335</span> this.results = task.getResults();<a name="line.335"></a> +<span class="sourceLineNo">336</span> for (int i = 0; i != this.results.length; ++i) {<a name="line.336"></a> +<span class="sourceLineNo">337</span> results[i] = null;<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> List<Integer> replicaGetIndices = null;<a name="line.340"></a> +<span class="sourceLineNo">341</span> boolean hasAnyReplicaGets = false;<a name="line.341"></a> +<span class="sourceLineNo">342</span> if (results != null) {<a name="line.342"></a> +<span class="sourceLineNo">343</span> // Check to see if any requests might require replica calls.<a name="line.343"></a> +<span class="sourceLineNo">344</span> // We expect that many requests will consist of all or no multi-replica gets; in such<a name="line.344"></a> +<span class="sourceLineNo">345</span> // cases we would just use a boolean (hasAnyReplicaGets). If there's a mix, we will<a name="line.345"></a> +<span class="sourceLineNo">346</span> // store the list of action indexes for which replica gets are possible, and set<a name="line.346"></a> +<span class="sourceLineNo">347</span> // hasAnyReplicaGets to true.<a name="line.347"></a> +<span class="sourceLineNo">348</span> boolean hasAnyNonReplicaReqs = false;<a name="line.348"></a> +<span class="sourceLineNo">349</span> int posInList = 0;<a name="line.349"></a> +<span class="sourceLineNo">350</span> for (Action action : actions) {<a name="line.350"></a> +<span class="sourceLineNo">351</span> boolean isReplicaGet = AsyncProcess.isReplicaGet(action.getAction());<a name="line.351"></a> +<span class="sourceLineNo">352</span> if (isReplicaGet) {<a name="line.352"></a> +<span class="sourceLineNo">353</span> hasAnyReplicaGets = true;<a name="line.353"></a> +<span class="sourceLineNo">354</span> if (hasAnyNonReplicaReqs) { // Mixed case<a name="line.354"></a> +<span class="sourceLineNo">355</span> if (replicaGetIndices == null) {<a name="line.355"></a> +<span class="sourceLineNo">356</span> replicaGetIndices = new ArrayList<>(acti
<TRUNCATED>
