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https://issues.apache.org/jira/browse/IMPALA-3929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-3929.
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Resolution: Won't Fix
IMPALA-3902 is the threading model we should be going towards and will help
parallelise inserts.
> multithreaded text encoding
> ---------------------------
>
> Key: IMPALA-3929
> URL: https://issues.apache.org/jira/browse/IMPALA-3929
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Impala 2.5.0
> Reporter: Marcell Szabo
> Priority: Minor
>
> Often the bottleneck of the INSERT statement is the serialisation to text,
> measured by EncodeTimer.
> Could we implement a producer-consumer model to allow serialisation happen in
> multiple threads even if we write one file?
> Thank you
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