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Missing index on 'resubmit_job_id' for 'jobs' table #194

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bzizou opened this issue Mar 22, 2022 · 0 comments
Open

Missing index on 'resubmit_job_id' for 'jobs' table #194

bzizou opened this issue Mar 22, 2022 · 0 comments

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@bzizou
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bzizou commented Mar 22, 2022 •
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On a big OAR DB (70M jobs), the NodeChangeState command may lock OAR for a long time on such queries:

2022-03-22 13:21:01.231 CET [42503] oar@oar LOG:  duration: 413415.226 ms  statement:    SELECT COUNT(*)
                                        FROM jobs
                                        WHERE
                                            resubmit_job_id = 69815420

A new index solves this issue:

CREATE INDEX job_resubmit_job_id ON jobs (resubmit_job_id);
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@bzizou