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  1. Core Server
  2. SERVER-27518

max accumulator with auto-buckets can cause mongod crash

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    Details

    • Type: Task
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Aggregation Framework
    • Labels:
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      Description

      The following aggregation query on the startups.companies data set (from the m034 handouts) crashes the mongod process (reproduced using MongoDB 3.4 on Windows)

      bucketAuto =  {'$bucketAuto': {             'groupBy': '$number_of_employees',             'buckets': 3,             'granularity': '1-2-5',     'output': { value: {$max: 1}     }           }}
      match = {'$match': { 'number_of_employees' : {'$type': 'int'} }}
      db.companies.aggregate([match, bucketAuto])
      

      The following error is shown:

      2016-12-25T10:35:16.635+0200 I CONTROL  [conn2] *** unhandled exception (access violation) at 0x00007FF6482CC1BE, terminating
      2016-12-25T10:35:16.635+0200 I CONTROL  [conn2] *** access violation was a read from 0x00000000000000A8
      2016-12-25T10:35:16.638+0200 I CONTROL  [conn2] *** stack trace for unhandled exception:
      2016-12-25T10:35:16.763+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\pipeline\accumulator_min_max.cpp(56)                            mongo::AccumulatorMinMax::processInternal+0x2e
      2016-12-25T10:35:16.763+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\pipeline\document_source_bucket_auto.cpp(156)                   mongo::DocumentSourceBucketAuto::addDocumentToBucket+0x10f
      2016-12-25T10:35:16.766+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\pipeline\document_source_bucket_auto.cpp(204)                   mongo::DocumentSourceBucketAuto::populateBuckets+0x27b
      2016-12-25T10:35:16.766+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\pipeline\document_source_bucket_auto.cpp(63)                    mongo::DocumentSourceBucketAuto::getNext+0xb2
      2016-12-25T10:35:16.767+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\pipeline\document_source_facet.cpp(165)                         mongo::DocumentSourceFacet::getNext+0xf4
      2016-12-25T10:35:16.768+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\pipeline\pipeline.cpp(346)                                      mongo::Pipeline::getNext+0x7c
      2016-12-25T10:35:16.768+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\exec\pipeline_proxy.cpp(110)                                    mongo::PipelineProxyStage::getNextBson+0x45
      2016-12-25T10:35:16.770+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\exec\pipeline_proxy.cpp(71)                                     mongo::PipelineProxyStage::doWork+0x11f
      2016-12-25T10:35:16.771+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\exec\plan_stage.cpp(46)                                         mongo::PlanStage::work+0x6d
      2016-12-25T10:35:16.771+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\query\plan_executor.cpp(425)                                    mongo::PlanExecutor::getNextImpl+0x544
      2016-12-25T10:35:16.772+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\query\plan_executor.cpp(345)                                    mongo::PlanExecutor::getNext+0x41
      2016-12-25T10:35:16.772+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\commands\pipeline_command.cpp(113)                              mongo::`anonymous namespace'::handleCursorCommand+0x150
      2016-12-25T10:35:16.775+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\commands\pipeline_command.cpp(560)                              mongo::`anonymous namespace'::PipelineCommand::runParsed+0x13f6
      2016-12-25T10:35:16.779+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\commands\pipeline_command.cpp(640)                              mongo::`anonymous namespace'::PipelineCommand::run+0x349
      2016-12-25T10:35:16.779+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\commands\dbcommands.cpp(1521)                                   mongo::Command::run+0x589
      2016-12-25T10:35:16.780+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\commands\dbcommands.cpp(1442)                                   mongo::Command::execCommand+0xb9d
      2016-12-25T10:35:16.781+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\run_commands.cpp(73)                                            mongo::runCommands+0x4e4
      2016-12-25T10:35:16.781+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\instance.cpp(273)                                               mongo::`anonymous namespace'::receivedRpc+0x19f
      2016-12-25T10:35:16.782+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\instance.cpp(618)                                               mongo::assembleResponse+0x7e5
      2016-12-25T10:35:16.782+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\db\service_entry_point_mongod.cpp(135)                             mongo::ServiceEntryPointMongod::_sessionLoop+0x159
      2016-12-25T10:35:16.782+0200 I CONTROL  [conn2] mongod.exe    c:\program files (x86)\microsoft visual studio 14.0\vc\include\functional(212)   std::_Func_impl<<lambda_0476eb5123845e42a2f452f2efde6866>,std::allocator<int>,void,std::shared_ptr<mongo::transport::Session> const & __ptr64>::_Do_call+0x43
      2016-12-25T10:35:16.783+0200 I CONTROL  [conn2] mongod.exe    ...\src\mongo\transport\service_entry_point_utils.cpp(78)                        mongo::`anonymous namespace'::runFunc+0x1b3
      2016-12-25T10:35:16.783+0200 I CONTROL  [conn2] mongod.exe    c:\program files (x86)\microsoft visual studio 14.0\vc\include\thr\xthread(247)  std::_LaunchPad<std::unique_ptr<std::tuple<std::_Binder<std::_Unforced,void * __ptr64 (__cdecl&)(void * __ptr64),mongo::`anonymous namespace'::Context * __ptr64> >,std::default_delete<std::tuple<std::_Binder<std::_Unforced,void * __ptr64 (__cdecl&)(void * __ptr64),mongo::`anonymous namespace'::Context * __ptr64> > > > >::_Run+0x75
      2016-12-25T10:35:16.784+0200 I CONTROL  [conn2] mongod.exe    c:\program files (x86)\microsoft visual studio 14.0\vc\include\thr\xthread(210)  std::_Pad::_Call_func+0x9
      2016-12-25T10:35:16.784+0200 I CONTROL  [conn2] ucrtbase.dll                                                                                   o__realloc_base+0x60
      2016-12-25T10:35:16.785+0200 I CONTROL  [conn2] KERNEL32.DLL                                                                                   BaseThreadInitThunk+0x14
      2016-12-25T10:35:16.785+0200 I -        [conn2]
      2016-12-25T10:35:16.786+0200 I CONTROL  [conn2] failed to open minidump file C:\Program Files\MongoDB\Server\3.2016-12-25T08-35-16.mdmp : Access is denied.
      2016-12-25T10:35:16.786+0200 I CONTROL  [conn2] *** immediate exit due to unhandled exception
      

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              Assignee:
              david.storch David Storch
              Reporter:
              tomer.yakir Tomer Yakir
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