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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/09/21 21:24:00 UTC

[jira] [Commented] (IMPALA-10183) Hit promise DCHECK while looping result spooling tests

    [ https://issues.apache.org/jira/browse/IMPALA-10183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17199673#comment-17199673 ] 

Tim Armstrong commented on IMPALA-10183:
----------------------------------------

Looks like this code is problematic - there's a race where the promise could be set after the IsSet check returns true. 
{noformat}
      if (!all_results_spooled_.IsSet()) {
        discard_result(all_results_spooled_.Set(true));
      }
{noformat}

> Hit promise DCHECK while looping result spooling tests
> ------------------------------------------------------
>
>                 Key: IMPALA-10183
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10183
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>            Reporter: Tim Armstrong
>            Assignee: Quanlong Huang
>            Priority: Major
>         Attachments: impalad.ERROR.gz, impalad.FATAL.gz, impalad.INFO.gz
>
>
> {noformat}
> while impala-py.test tests/query_test/test_result_spooling.py -n4 ; do date; done
> {noformat}
> {noformat}
> F0921 10:14:35.355281  5842 promise.h:61] Check failed: mode == PromiseMode::MULTIPLE_PRODUCER [ mode = 0 , PromiseM
> ode::MULTIPLE_PRODUCER = 1 ]Called Set(..) twice on the same Promise in SINGLE_PRODUCER mode
> *** Check failure stack trace: ***
>     @          0x52087fc  google::LogMessage::Fail()
>     @          0x520a0ec  google::LogMessage::SendToLog()
>     @          0x520815a  google::LogMessage::Flush()
>     @          0x520bd58  google::LogMessageFatal::~LogMessageFatal()
>     @          0x223cc50  impala::Promise<>::Set()
>     @          0x293f21d  impala::BufferedPlanRootSink::Cancel()
>     @          0x2317856  impala::FragmentInstanceState::Cancel()
>     @          0x2284c62  impala::QueryState::Cancel()
>     @          0x2464728  impala::ControlService::CancelQueryFInstances()
>     @          0x253df37  _ZZN6impala16ControlServiceIfC4ERK13scoped_refptrIN4kudu12MetricEntityEERKS1_INS2_3rpc13Re
> sultTrackerEEENKUlPKN6google8protobuf7MessageEPSE_PNS7_10RpcContextEE4_clESG_SH_SJ_
>     @          0x253fb65  _ZNSt17_Function_handlerIFvPKN6google8protobuf7MessageEPS2_PN4kudu3rpc10RpcContextEEZN6imp
> ala16ControlServiceIfC4ERK13scoped_refptrINS6_12MetricEntityEERKSD_INS7_13ResultTrackerEEEUlS4_S5_S9_E4_E9_M_invokeE
> RKSt9_Any_dataOS4_OS5_OS9_
>     @          0x2c9612f  std::function<>::operator()()
>     @          0x2c95ade  kudu::rpc::GeneratedServiceIf::Handle()
>     @          0x21d8c55  impala::ImpalaServicePool::RunThread()
>     @          0x21de836  boost::_mfi::mf0<>::operator()()
>     @          0x21de468  boost::_bi::list1<>::operator()<>()
>     @          0x21de02e  boost::_bi::bind_t<>::operator()()
>     @          0x21ddaa5  boost::detail::function::void_function_obj_invoker0<>::invoke()
>     @          0x2140b55  boost::function0<>::operator()()
>     @          0x271e1a9  impala::Thread::SuperviseThread()
>     @          0x2726146  boost::_bi::list5<>::operator()<>()
>     @          0x272606a  boost::_bi::bind_t<>::operator()()
>     @          0x272602b  boost::detail::thread_data<>::run()
>     @          0x3f0f621  thread_proxy
>     @     0x7f4db3f356da  start_thread
>     @     0x7f4db092ca3e  clone
> Wrote minidump to /home/tarmstrong/Impala/impala/logs/cluster/minidumps/impalad/3204ffe5-6905-4842-d702c395-21c4eca5
> .dmp
> (END)
> {noformat}



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