Re: [HACKERS] Logging idle checkpoints

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От Alvaro Herrera
Тема Re: [HACKERS] Logging idle checkpoints
Дата
Msg-id 20171005114142.dupjeqe2cnplhgkx@alvherre.pgsql
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Ответ на Re: [HACKERS] Logging idle checkpoints  (Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>)
Ответы Re: [HACKERS] Logging idle checkpoints  (Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>)
[HACKERS] More stats about skipped vacuums  (Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>)
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Kyotaro HORIGUCHI wrote:

> # This reminded me of a concern. I'd like to count vacuums that
> # are required but skipped by lock-failure, or killed by other
> # backend.

We clearly need to improve the stats and logs related to vacuuming work
executed, both by autovacuum and manually invoked.  One other item I
have in my head is to report numbers related to the truncation phase of
a vacuum run, since in some cases it causes horrible and hard to
diagnose problems.  (Also, add an reloption to stop vacuum from doing
the truncation phase at all -- for some usage patterns that is a serious
problem.)

However, please do open a new thread about it.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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