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https://issues.apache.org/jira/browse/IMPALA-14661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yida Wu resolved IMPALA-14661.
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Fix Version/s: Impala 5.0.0
Target Version: Impala 5.0.0
Resolution: Fixed
> Optimize admissiond memory usage by compressing RPC payloads
> ------------------------------------------------------------
>
> Key: IMPALA-14661
> URL: https://issues.apache.org/jira/browse/IMPALA-14661
> Project: IMPALA
> Issue Type: Sub-task
> Components: Backend
> Affects Versions: Impala 4.5.0
> Reporter: Yida Wu
> Assignee: Yida Wu
> Priority: Critical
> Fix For: Impala 5.0.0
>
>
> In global admissiond mode, the TQueryExecRequest in the admission request can
> be very large for complex queries, consuming significant memory in the
> admissiond service.
> This task is to optimize memory usage by compressing the request payload on
> the client side (coordinator) before sending. On the server side
> (admissiond), we store the compressed version in memory and only decompress
> it just-in-time when the admission decision is actually being made. This can
> largely reduces the memory footprint for queued queries.
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