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  1. IMPALA
  2. IMPALA-4332

DCHECK in scheduler when querying Kudu or HBase table with MT_DOP > 0.

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: Impala 2.8.0
    • Fix Version/s: Impala 2.8.0
    • Component/s: Backend
    • Labels:

      Description

      Repro:

      select count(*) from functional_kudu.alltypes
      OR
      select count(*) from functional_hbase.alltypes
      

      DCHECK:

      F1020 17:24:07.600431 23910 simple-scheduler.cc:481] Check failed: params.scan_range.__isset.hdfs_file_split
      

      Stack:

      #7  0x0000000001403f70 in impala::SimpleScheduler::MtCreateScanInstances (this=0xc1ecf80, leftmost_scan_id=0, 
          fragment_params=0xc57b9c0, schedule=0x7cceee0) at /home/abehm/impala/be/src/scheduling/simple-scheduler.cc:481
      #8  0x0000000001403c7f in impala::SimpleScheduler::MtComputeFragmentExecParams (this=0xc1ecf80, plan_exec_info=..., 
          fragment_params=0xc57b9c0, schedule=0x7cceee0) at /home/abehm/impala/be/src/scheduling/simple-scheduler.cc:456
      #9  0x0000000001403973 in impala::SimpleScheduler::MtComputeFragmentExecParams (this=0xc1ecf80, plan_exec_info=..., 
          fragment_params=0xc57b900, schedule=0x7cceee0) at /home/abehm/impala/be/src/scheduling/simple-scheduler.cc:428
      #10 0x00000000014032ef in impala::SimpleScheduler::MtComputeFragmentExecParams (this=0xc1ecf80, schedule=0x7cceee0)
          at /home/abehm/impala/be/src/scheduling/simple-scheduler.cc:378
      #11 0x00000000014069a9 in impala::SimpleScheduler::Schedule (this=0xc1ecf80, schedule=0x7cceee0)
          at /home/abehm/impala/be/src/scheduling/simple-scheduler.cc:884
      #12 0x00000000014db666 in impala::ImpalaServer::QueryExecState::ExecQueryOrDmlRequest (this=0xbe7a000, query_exec_request=...)
          at /home/abehm/impala/be/src/service/query-exec-state.cc:444
      #13 0x00000000014d85b5 in impala::ImpalaServer::QueryExecState::Exec (this=0xbe7a000, exec_request=0x7f46a9f328a0)
          at /home/abehm/impala/be/src/service/query-exec-state.cc:154
      #14 0x00000000014665c8 in impala::ImpalaServer::ExecuteInternal (this=0xcb98400, query_ctx=..., 
          session_state=std::shared_ptr (count 6, weak 0) 0xcae38c0, registered_exec_state=0x7f46a9f33f2f, exec_state=0x7f46a9f342c0)
          at /home/abehm/impala/be/src/service/impala-server.cc:817
      #15 0x0000000001465df4 in impala::ImpalaServer::Execute (this=0xcb98400, query_ctx=0x7f46a9f33fc0, 
          session_state=std::shared_ptr (count 6, weak 0) 0xcae38c0, exec_state=0x7f46a9f342c0)
          at /home/abehm/impala/be/src/service/impala-server.cc:764
      #16 0x00000000014cd3d3 in impala::ImpalaServer::query (this=0xcb98400, query_handle=..., query=...)
          at /home/abehm/impala/be/src/service/impala-beeswax-server.cc:66
      ...
      

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            • Assignee:
              marcelk Marcel Kornacker
              Reporter:
              alex.behm Alexander Behm
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              Dates

              • Created:
                Updated:
                Resolved: