Commit 3c556bc8 authored by Bartek Wrona's avatar Bartek Wrona
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PGRST_DB_ROOT_SPEC is not set anymore by start_postgrest,sh script to reduce PostgREST CPU usage

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  • Dan Notestein @dan ·
    Owner

    @wrona Could you add a comment about what this does and how much CPU usage is reduced by the change? Inquiring minds want to know :-)

  • Bartek Wrona @wrona ·
    Author Owner

    DB_ROOT_SPEC story started on analysis why hive-staging load is so high, even postgresql didn't take all of it. It appeared that postgREST processes each a lot of CPU when traffic is sent there. Guys found this: https://github.com/PostgREST/postgrest/pull/1794 Because there was no rewriter container, requests were sent to the root and I think it consumed more CPU. @mickiewicz you had some grafana measures where Postgrest CPU impact was recorded.

  • Marcin @Ickiewicz ·
    Developer

    image

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