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https://issues.apache.org/jira/browse/KUDU-2711?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon reassigned KUDU-2711:
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Assignee: Will Berkeley (was: Todd Lipcon)
> Improve performance of GetTableLocations for large tables
> ---------------------------------------------------------
>
> Key: KUDU-2711
> URL: https://issues.apache.org/jira/browse/KUDU-2711
> Project: Kudu
> Issue Type: Improvement
> Components: master, perf
> Affects Versions: 1.9.0
> Reporter: Todd Lipcon
> Assignee: Will Berkeley
> Priority: Major
>
> Currently the response for TableLocations returns a separate copy of the
> TSInfoPB for every replica. These PBs are relatively large and include string
> UUIDs, hostnames, etc. For large tables, a response may have up to 3000
> replicas. In most clusters, the table itself will be on far fewer than 3000
> unique hosts, so it makes sense to return the replicas as indexes into a
> response-level list rather than separately duplicate the TS info in each of
> the replica PBs.
> Additionally, we can consider a reader-writer lock on TSDescriptor so that
> these requests can proceed more in parallel.
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