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https://issues.apache.org/jira/browse/IMPALA-13342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-13342 stopped by Arnab Karmakar.
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> Query option to dump TExecRequest
> ---------------------------------
>
> Key: IMPALA-13342
> URL: https://issues.apache.org/jira/browse/IMPALA-13342
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend, Frontend
> Reporter: Quanlong Huang
> Assignee: Arnab Karmakar
> Priority: Major
> Labels: ramp-up
>
> To investigate planner bugs like IMPALA-13274, it'd be helpful to check the
> TExecRequest of the query. However, enabling TRACE level logs of Frontend
> doesn't dump it. There is a flag, dump_exec_request_path, which will let
> coordinator dump the TExecRequest to files under the given folder. That's a
> startup flag that requires a restart and will dump TExecRequests for all
> queries.
> A query option that lets coordinator output the TExecRequest to the client
> without executing the query will be helpful. Note that the query might cause
> crash so we don't want it to be executed. Explaining the query will get a
> different TExecRequest.
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