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Posted to server-dev@james.apache.org by "Gautier DI FOLCO (Jira)" <se...@james.apache.org> on 2020/06/30 16:01:00 UTC
[jira] [Commented] (JAMES-3290) Cassandra exception is not handled
in JamesSpooler
[ https://issues.apache.org/jira/browse/JAMES-3290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17148796#comment-17148796 ]
Gautier DI FOLCO commented on JAMES-3290:
-----------------------------------------
This PR contributed to it: [https://github.com/linagora/james-project/pull/3530]
> Cassandra exception is not handled in JamesSpooler
> --------------------------------------------------
>
> Key: JAMES-3290
> URL: https://issues.apache.org/jira/browse/JAMES-3290
> Project: James Server
> Issue Type: Improvement
> Components: rabbitmq, SpoolManager & Processors
> Reporter: Gautier DI FOLCO
> Priority: Major
>
> In the distributed flavor, we rely on *MailLoader* which itself rely on Cassandra.
> Since this code mix-up reactive and non-reactive code, Cassandra errors are non handled which break in the RabbitMQ part:
> {code:java}
> Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: cassandra-0 (com.datastax.driver.core.exceptions.OperationTimedOutException: [cassandra-0] Timed out waiting for server response), cassandra-1 (com.datastax.driver.core.exceptions.OperationTimedOutException: [cassandra-1] Timed out waiting for server response), cassandra-2 (com.datastax.driver.core.exceptions.OperationTimedOutException: [cassandra-2] Timed out waiting for server response))
> at com.datastax.driver.core.RequestHandler.reportNoMoreHosts(RequestHandler.java:284)
> at com.datastax.driver.core.RequestHandler.access$1200(RequestHandler.java:62)
> at com.datastax.driver.core.RequestHandler$SpeculativeExecution.findNextHostAndQuery(RequestHandler.java:376)
> at com.datastax.driver.core.RequestHandler$SpeculativeExecution.retry(RequestHandler.java:558)
> at com.datastax.driver.core.RequestHandler$SpeculativeExecution.processRetryDecision(RequestHandler.java:540)
> at com.datastax.driver.core.RequestHandler$SpeculativeExecution.onTimeout(RequestHandler.java:981)
> at com.datastax.driver.core.Connection$ResponseHandler$1.run(Connection.java:1582)
> at com.datastax.shaded.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:663)
> at com.datastax.shaded.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:738)
> at com.datastax.shaded.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:466)
> at com.datastax.shaded.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.base/java.lang.Thread.run(Unknown Source)
> Suppressed: java.lang.Exception: #block terminated with an error
> at reactor.core.publisher.BlockingSingleSubscriber.blockingGet(BlockingSingleSubscriber.java:99)
> at reactor.core.publisher.Mono.block(Mono.java:1666)
> at org.apache.james.queue.rabbitmq.MailLoader.load(MailLoader.java:46)
> at com.github.fge.lambdas.functions.FunctionChainer.lambda$sneakyThrow$49(FunctionChainer.java:74)
> at org.apache.james.queue.rabbitmq.Dequeuer.loadMail(Dequeuer.java:146)
> at org.apache.james.queue.rabbitmq.Dequeuer.loadItem(Dequeuer.java:124)
> at org.apache.james.queue.rabbitmq.Dequeuer.lambda$deQueue$1(Dequeuer.java:105)
> at reactor.core.publisher.FluxMergeSequential$MergeSequentialMain.onNext(FluxMergeSequential.java:201)
> at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:107)
> at reactor.core.publisher.FluxCreate$BufferAsyncSink.drain(FluxCreate.java:793)
> at reactor.core.publisher.FluxCreate$BufferAsyncSink.next(FluxCreate.java:718)
> at reactor.core.publisher.FluxCreate$SerializedSink.next(FluxCreate.java:153)
> at reactor.rabbitmq.Receiver.lambda$null$9(Receiver.java:190)
> at com.rabbitmq.client.impl.recovery.AutorecoveringChannel$2.handleDelivery(AutorecoveringChannel.java:577)
> at com.rabbitmq.client.impl.ConsumerDispatcher$5.run(ConsumerDispatcher.java:149)
> at com.rabbitmq.client.impl.ConsumerWorkService$WorkPoolRunnable.run(ConsumerWorkService.java:104)
> at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
> at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> ... 1 common frames omitted
> t thread pool-17-thread-5
> {code}
> Worse: it actually break the spooling threads, meaning that mails are not dequeued.
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