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https://issues.apache.org/jira/browse/QPID-8590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tomas Vavricka resolved QPID-8590.
----------------------------------
Fix Version/s: qpid-java-broker-9.0.0
Resolution: Fixed
> [Broker-J] Purge on flow to disk queue
> --------------------------------------
>
> Key: QPID-8590
> URL: https://issues.apache.org/jira/browse/QPID-8590
> Project: Qpid
> Issue Type: Improvement
> Components: Broker-J
> Affects Versions: qpid-java-broker-8.0.6
> Reporter: Daniil Kirilyuk
> Priority: Minor
> Fix For: qpid-java-broker-9.0.0
>
>
> Purging of flow to disk queues is very slow (~10messages/s).
> Steps to replicate:
> * send 100000 messages to flow to disk queue with overflow count set to 10
> * initiate queue purge by REST API
> Note: When broker is stop is initiated, queue is purged much faster
> (approximatelly ~60000messages/s).
> Threaddumps show following stacktraces:
> {code:java}
> "qtp1722120611-7283" #7283 prio=5 os_prio=0 cpu=47303542.52ms
> elapsed=76831.32s tid=0x00007fcf64097800 nid=0x3d5b runnable
> [0x00007fcf3c7be000]
> java.lang.Thread.State: RUNNABLE
> at
> org.apache.qpid.server.message.AbstractServerMessageImpl.decrementReference(AbstractServerMessageImpl.java:136)
> at
> org.apache.qpid.server.message.AbstractServerMessageImpl.access$500(AbstractServerMessageImpl.java:40)
> at
> org.apache.qpid.server.message.AbstractServerMessageImpl$Reference.release(AbstractServerMessageImpl.java:356)
> - locked <0x0000000600516aa0> (a
> org.apache.qpid.server.message.AbstractServerMessageImpl$Reference)
> at
> org.apache.qpid.server.message.AbstractServerMessageImpl$Reference.close(AbstractServerMessageImpl.java:363)
> at
> org.apache.qpid.server.queue.FlowToDiskOverflowPolicyHandler$Handler.flowToDisk(FlowToDiskOverflowPolicyHandler.java:135)
> at
> org.apache.qpid.server.queue.FlowToDiskOverflowPolicyHandler$Handler.flowTailToDiskIfNecessary(FlowToDiskOverflowPolicyHandler.java:105)
> at
> org.apache.qpid.server.queue.FlowToDiskOverflowPolicyHandler$Handler.checkOverflow(FlowToDiskOverflowPolicyHandler.java:68)
> at
> org.apache.qpid.server.queue.FlowToDiskOverflowPolicyHandler$Handler.access$100(FlowToDiskOverflowPolicyHandler.java:44)
> at
> org.apache.qpid.server.queue.FlowToDiskOverflowPolicyHandler.checkOverflow(FlowToDiskOverflowPolicyHandler.java:40)
> at
> org.apache.qpid.server.queue.AbstractQueue.checkCapacity(AbstractQueue.java:2117)
> at
> org.apache.qpid.server.queue.AbstractQueueEntryList.updateStatsOnStateChange(AbstractQueueEntryList.java:99)
> at
> org.apache.qpid.server.queue.OrderedQueueEntryList.updateStatsOnStateChange(OrderedQueueEntryList.java:33)
> at
> org.apache.qpid.server.queue.QueueEntryImpl.notifyStateChange(QueueEntryImpl.java:559)
> at
> org.apache.qpid.server.queue.QueueEntryImpl.dispose(QueueEntryImpl.java:578)
> at
> org.apache.qpid.server.queue.QueueEntryImpl.delete(QueueEntryImpl.java:596)
> at
> org.apache.qpid.server.queue.AbstractQueue$7.postCommit(AbstractQueue.java:1836)
> at
> org.apache.qpid.server.txn.LocalTransaction.doPostTransactionActions(LocalTransaction.java:473)
> at
> org.apache.qpid.server.txn.LocalTransaction.commit(LocalTransaction.java:402)
> at
> org.apache.qpid.server.txn.LocalTransaction.commit(LocalTransaction.java:374)
> at
> org.apache.qpid.server.queue.AbstractQueue.clearQueue(AbstractQueue.java:1816)
> at
> org.apache.qpid.server.queue.StandardQueueImplWithAccessChecking.clearQueue(StandardQueueImplWithAccessChecking.java:152)
> at
> jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(java.base@11.0.10/Native
> Method)
> at
> jdk.internal.reflect.NativeMethodAccessorImpl.invoke(java.base@11.0.10/NativeMethodAccessorImpl.java:62)
> at
> jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(java.base@11.0.10/DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(java.base@11.0.10/Method.java:566)
> at
> org.apache.qpid.server.model.ConfiguredObjectMethodOperation.perform(ConfiguredObjectMethodOperation.java:125)
> at
> org.apache.qpid.server.management.plugin.controller.latest.LatestManagementController.invoke(LatestManagementController.java:372)
> at
> org.apache.qpid.server.management.plugin.controller.AbstractManagementController.handlePostOrPut(AbstractManagementController.java:147)
> at
> org.apache.qpid.server.management.plugin.controller.AbstractManagementController.handlePost(AbstractManagementController.java:100)
> at
> org.apache.qpid.server.management.plugin.servlet.rest.RestServlet.doPost(RestServlet.java:136)
> at
> org.apache.qpid.server.management.plugin.servlet.rest.AbstractServlet.doPost(AbstractServlet.java:146)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> at
> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:791)
> at
> org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626)
> at
> org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter$1.run(AuthenticationCheckFilter.java:161)
> at
> org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter$1.run(AuthenticationCheckFilter.java:157)
> at java.security.AccessController.doPrivileged(java.base@11.0.10/Native
> Method)
> at javax.security.auth.Subject.doAs(java.base@11.0.10/Subject.java:423)
> at
> org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter.doFilterChainAs(AuthenticationCheckFilter.java:156)
> at
> org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter.doFilter(AuthenticationCheckFilter.java:126)
> at
> org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
> at
> org.apache.qpid.server.management.plugin.filter.LoggingFilter.doFilter(LoggingFilter.java:63)
> at
> org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
> at
> org.apache.qpid.server.management.plugin.filter.MethodFilter.doFilter(MethodFilter.java:67)
> at
> org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
> at
> org.eclipse.jetty.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:319)
> at
> org.eclipse.jetty.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:273)
> at
> org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
> at
> org.apache.qpid.server.management.plugin.filter.ExceptionHandlingFilter.doFilter(ExceptionHandlingFilter.java:59)
> at
> org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1435)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1350)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
> at org.eclipse.jetty.server.Server.handle(Server.java:516)
> at
> org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388)
> at
> org.eclipse.jetty.server.HttpChannel$$Lambda$220/0x00000008403d1040.dispatch(Unknown
> Source)
> at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
> at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
> at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:773)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:905)
> at
> org.apache.qpid.server.bytebuffer.QpidByteBufferFactory.lambda$createQpidByteBufferTrackingThreadFactory$0(QpidByteBufferFactory.java:464)
> at
> org.apache.qpid.server.bytebuffer.QpidByteBufferFactory$$Lambda$73/0x0000000840157c40.run(Unknown
> Source)
> at java.lang.Thread.run(java.base@11.0.10/Thread.java:834)
> {code}
> It seems that deletion of a queue entry in queue with FLOW_TO_DISK overflow
> policy triggers FlowToDiskOverflowPolicyHandler to iterate over queue entries
> leading to significant performance drop.
>
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