From: | Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> |
---|---|
To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
Cc: | Craig Ringer <craig(at)2ndquadrant(dot)com>, hubert depesz lubaczewski <depesz(at)depesz(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: proposal: contrib module - generic command scheduler |
Date: | 2015-05-14 06:01:11 |
Message-ID: | 55543A27.9020900@BlueTreble.com |
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Thread: | |
Lists: | pgsql-hackers |
On 5/13/15 1:32 AM, Pavel Stehule wrote:
> 5. When command waits to free worker, write to log
> 6. When command was not be executed due missing workers (and
> max_workers
> > 0), write to log
>
>
> Also unfortunate. We already don't provide enough monitoring
> capability and this just makes that worse.
>
>
> theoretically it can be supported some pg_stat_ view - but I would not
> to implement a some history table for commands. Again it is task for
> higher layers.
I don't think we want to log statements, but we should be able to log
when a job has run and whether it succeeded or not. (log in a table, not
just a logfile).
This isn't something that can be done at higher layers either; only the
scheduler will know if the job failed to even start, or whether it tried
to run the job.
--
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com
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