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  1. IMPALA
  2. IMPALA-5892

Fault injection at DescriptorTbl::Create() can lead to query hang

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • Impala 2.9.0
    • Impala 2.11.0
    • Backend
    • None

    Description

      When doing fault injection testing, I found that QueryState::ReportExecStatusAux() does not include enough information for the coordinator to detect an error when 'fis' is null. Specifically, TReportExecStatusParam does not include status unless a TFragmentInstanceExecStatus is inserted into instance_exec_status, and that structure requires a fragment instance id. For a general error (such as one reported via ReportExecStatusAux() in QueryState::StartFInstances() when DescriptorTbl::Create() fails), this lack of status information means that the coordinator will never detect that the query failed for certain error condtitions.

      TReportExecStatusParam needs to include a general status field for reporting this information.

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            joemcdonnell Joe McDonnell
            joemcdonnell Joe McDonnell
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              Updated:
              Resolved: