Re: Corruption during WAL replay

From: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Daniel Gustafsson <daniel(at)yesql(dot)se>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, deniel1495(at)mail(dot)ru, Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com>, tejeswarm(at)hotmail(dot)com, hlinnaka <hlinnaka(at)iki(dot)fi>, Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Daniel Wood <hexexpert(at)comcast(dot)net>
Subject: Re: Corruption during WAL replay
Date: 2022-03-25 03:02:52
Message-ID: CA+hUKGJHLF+AjiNZYFaRtKW9SuU39Ld=htP5fX-VCYTeQWc3zA@mail.gmail.com
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On Fri, Mar 25, 2022 at 3:35 PM Andres Freund <andres(at)anarazel(dot)de> wrote:
> So I'm not sure how much can be gleaned from raw "failure counts" without
> taking the number of runs into account as well?

Ah, right, it does indeed hold the record for most runs in 3 months,
and taking runs into account its "stats" failure rate is clustered
with mandrill and seawasp. Anyway, clearly not relevant because
dragonet doesn't even show up in the list.

animal | runs | stats_test_fail_fraction
---------------+------+--------------------------
mandrill | 158 | 0.0126582278481013
seawasp | 85 | 0.0117647058823529
serinus | 1299 | 0.0107775211701309
sungazer | 174 | 0.00574712643678161
flaviventris | 1292 | 0.00464396284829721
bonito | 313 | 0.00319488817891374
crake | 743 | 0.00134589502018843

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