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https://issues.apache.org/jira/browse/JAMES-2614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16704133#comment-16704133
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Tellier Benoit commented on JAMES-2614:
---------------------------------------
[~rouazana] : FTR I was able to reproduce the issue on my computer (but not
enough to fix it...). It seems the issue is just that a thread is trying to
dequeue while there is nothing enqueued. The error is given because at a point
everything timeouts
> RabbitMQMailQueueTest::concurrentEnqueueDequeueShouldNotFail is unstable
> ------------------------------------------------------------------------
>
> Key: JAMES-2614
> URL: https://issues.apache.org/jira/browse/JAMES-2614
> Project: James Server
> Issue Type: Bug
> Components: Queue, rabbitmq
> Reporter: Tellier Benoit
> Priority: Major
>
> RabbitMQMailQueueTest::concurrentEnqueueDequeueShouldNotFail is unstable and
> have high probability of failing in some environments.
> The related test is disabled, and need to be re-enabled after investigation
> and a fix.
> Here are the related stacktrace:
> {code:java}
> [null] 11:45:50.630 [ERROR] o.a.j.u.c.ConcurrentTestRunner - Error caught
> during concurrent testing
> [null] com.rabbitmq.client.ShutdownSignalException: channel error; protocol
> method: #method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no
> queue 'JamesMailQueue-workqueue-spool' in vhost '/', class-id=60,
> method-id=70)
> [null] at
> com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:516)
> [null] at
> com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:346)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:178)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:111)
> [null] at
> com.rabbitmq.client.impl.AMQConnection.readFrame(AMQConnection.java:670)
> [null] at
> com.rabbitmq.client.impl.AMQConnection.access$300(AMQConnection.java:48)
> [null] at
> com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:597)
> [null] ... 1 common frames omitted
> [null] Wrapped by: com.rabbitmq.client.ShutdownSignalException: channel
> error; protocol method: #method<channel.close>(reply-code=404,
> reply-text=NOT_FOUND - no queue 'JamesMailQueue-workqueue-spool' in vhost
> '/', class-id=60, method-id=70)
> [null] at
> com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:66)
> [null] at
> com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:36)
> [null] at
> com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:494)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:288)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:138)
> [null] ... 16 common frames omitted
> [null] Wrapped by: java.io.IOException: null
> [null] at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:126)
> [null] at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:122)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:144)
> [null] at
> com.rabbitmq.client.impl.ChannelN.basicGet(ChannelN.java:1148)
> [null] at
> com.rabbitmq.client.impl.recovery.AutorecoveringChannel.basicGet(AutorecoveringChannel.java:431)
> [null] at
> org.apache.james.queue.rabbitmq.RabbitClient.lambda$poll$4(RabbitClient.java:86)
> [null] at
> org.apache.james.backend.rabbitmq.SimpleChannelPool.execute(SimpleChannelPool.java:46)
> [null] at
> org.apache.james.queue.rabbitmq.RabbitClient.poll(RabbitClient.java:87)
> [null] at
> org.apache.james.queue.rabbitmq.Dequeuer.singleChannelRead(Dequeuer.java:136)
> [null] at
> com.nurkiewicz.asyncretry.AsyncRetryExecutor.lambda$getWithRetry$1(AsyncRetryExecutor.java:62)
> [null] at
> com.nurkiewicz.asyncretry.SyncRetryJob.run(SyncRetryJob.java:23)
> [null] ... 8 common frames omitted
> [null] Wrapped by: java.util.concurrent.CompletionException:
> java.io.IOException
> [null] at
> java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> [null] at
> java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> [null] at
> java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> [null] at
> java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> [null] at
> java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
> [null] at
> java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
> [null] at
> com.nurkiewicz.asyncretry.RetryJob.retryOrAbort(RetryJob.java:74)
> [null] at
> com.nurkiewicz.asyncretry.RetryJob.handleUserThrowable(RetryJob.java:58)
> [null] at
> com.nurkiewicz.asyncretry.RetryJob.handleThrowable(RetryJob.java:50)
> [null] at
> com.nurkiewicz.asyncretry.SyncRetryJob.run(SyncRetryJob.java:26)
> [null] at com.nurkiewicz.asyncretry.RetryJob.run(RetryJob.java:108)
> [null] at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [null] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [null] at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> [null] at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> [null] at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [null] at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [null] at java.lang.Thread.run(Thread.java:748)
> [null] 11:45:50.668 [ERROR] o.a.j.u.c.ConcurrentTestRunner - Error caught
> during concurrent testing
> [null] com.rabbitmq.client.ShutdownSignalException: channel error; protocol
> method: #method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no
> queue 'JamesMailQueue-workqueue-spool' in vhost '/', class-id=60,
> method-id=70)
> [null] at
> com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:516)
> [null] at
> com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:346)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:178)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:111)
> [null] at
> com.rabbitmq.client.impl.AMQConnection.readFrame(AMQConnection.java:670)
> [null] at
> com.rabbitmq.client.impl.AMQConnection.access$300(AMQConnection.java:48)
> [null] at
> com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:597)
> [null] ... 1 common frames omitted
> [null] Wrapped by: com.rabbitmq.client.ShutdownSignalException: channel
> error; protocol method: #method<channel.close>(reply-code=404,
> reply-text=NOT_FOUND - no queue 'JamesMailQueue-workqueue-spool' in vhost
> '/', class-id=60, method-id=70)
> [null] at
> com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:66)
> [null] at
> com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:36)
> [null] at
> com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:494)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:288)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:138)
> [null] ... 16 common frames omitted
> [null] Wrapped by: java.io.IOException: null
> [null] at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:126)
> [null] at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:122)
> [null] at
> com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:144)
> [null] at
> com.rabbitmq.client.impl.ChannelN.basicGet(ChannelN.java:1148)
> [null] at
> com.rabbitmq.client.impl.recovery.AutorecoveringChannel.basicGet(AutorecoveringChannel.java:431)
> [null] at
> org.apache.james.queue.rabbitmq.RabbitClient.lambda$poll$4(RabbitClient.java:86)
> [null] at
> org.apache.james.backend.rabbitmq.SimpleChannelPool.execute(SimpleChannelPool.java:46)
> [null] at
> org.apache.james.queue.rabbitmq.RabbitClient.poll(RabbitClient.java:87)
> [null] at
> org.apache.james.queue.rabbitmq.Dequeuer.singleChannelRead(Dequeuer.java:136)
> [null] at
> com.nurkiewicz.asyncretry.AsyncRetryExecutor.lambda$getWithRetry$1(AsyncRetryExecutor.java:62)
> [null] at
> com.nurkiewicz.asyncretry.SyncRetryJob.run(SyncRetryJob.java:23)
> [null] ... 8 common frames omitted
> [null] Wrapped by: java.util.concurrent.CompletionException:
> java.io.IOException
> [null] at
> java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> [null] at
> java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> [null] at
> java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> [null] at
> java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> [null] at
> java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
> [null] at
> java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
> [null] at
> com.nurkiewicz.asyncretry.RetryJob.retryOrAbort(RetryJob.java:74)
> [null] at
> com.nurkiewicz.asyncretry.RetryJob.handleUserThrowable(RetryJob.java:58)
> [null] at
> com.nurkiewicz.asyncretry.RetryJob.handleThrowable(RetryJob.java:50)
> [null] at
> com.nurkiewicz.asyncretry.SyncRetryJob.run(SyncRetryJob.java:26)
> [null] at com.nurkiewicz.asyncretry.RetryJob.run(RetryJob.java:108)
> [null] at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [null] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [null] at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> [null] at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> [null] at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [null] at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [null] at java.lang.Thread.run(Thread.java:748)
> [null] 11:45:52.196 [WARN ] o.a.j.q.r.RabbitMQMailQueue - Delays are not
> supported by RabbitMQ. Flush is a NOOP.
> [null] [ERROR] Tests run: 73, Failures: 1, Errors: 1, Skipped: 0, Time
> elapsed: 339.588 s <<< FAILURE! - in
> org.apache.james.queue.rabbitmq.RabbitMQMailQueueTest
> {code}
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