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* wait event docs @ 2019-12-12 22:07 Jeremy Schneider <[email protected]> 2019-12-13 06:50 ` Re: wait event docs Michael Paquier <[email protected]> 0 siblings, 1 reply; 3+ messages in thread From: Jeremy Schneider @ 2019-12-12 22:07 UTC (permalink / raw) To: [email protected] <[email protected]>; +Cc: [email protected]; pgsql-general <[email protected]> The wait event information in PostgreSQL is very helpful for troubleshooting. I always reference the PostgreSQL docs first, and when people ask me about wait events that where I send them first. The list of wait events there is comprehensive, but the descriptions are a bit terse and often use vocabulary that requires some familiarity with the internals to understand. AWS created some wait event documentation for Aurora with PostgreSQL compatibility which takes a slightly different approach. It's a lot more words... but it tries to give useful suggestions about how to improve (or fix) the system when a particular wait event is encountered. https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraPostgreSQL.Reference.html#AuroraP... Something like this would be really valuable for open source PostgreSQL too. While somebody's personal blog is one solution, it doesn't seem wholly inappropriate to live on a community resource. I'd be happy to seed the content and continue making updates it as I regularly helping people solve problems on open source community PostgreSQL (and hopefully others contribute too). Could we create a new wiki page as a starting point, and we could draft up and maintain something there for a little while? Maybe a place like https://wiki.postgresql.org/wiki/Wait_Events ? If it does turn out to be useful for a lot of people then maybe it could even get into the PG docs someday. :) -Jeremy P.S. my wiki username is "Jer" https://wiki.postgresql.org/wiki/User:Jer -- Jeremy Schneider Database Engineer Amazon Web Services ^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: wait event docs 2019-12-12 22:07 wait event docs Jeremy Schneider <[email protected]> @ 2019-12-13 06:50 ` Michael Paquier <[email protected]> 2019-12-21 22:46 ` Re: wait event docs Bruce Momjian <[email protected]> 0 siblings, 1 reply; 3+ messages in thread From: Michael Paquier @ 2019-12-13 06:50 UTC (permalink / raw) To: Jeremy Schneider <[email protected]>; +Cc: [email protected] On Thu, Dec 12, 2019 at 02:07:14PM -0800, Jeremy Schneider wrote: > The wait event information in PostgreSQL is very helpful for > troubleshooting. I always reference the PostgreSQL docs first, and when > people ask me about wait events that where I send them first. The list > of wait events there is comprehensive, but the descriptions are a bit > terse and often use vocabulary that requires some familiarity with the > internals to understand. (I think that it would be better to avoid cross-posting among multiple lists. Please note that I have removed -www and -general in my reply, keeping -docs because that7s the most meaningful) > Could we create a new wiki page as a starting point, and we could draft > up and maintain something there for a little while? Maybe a place like > https://wiki.postgresql.org/wiki/Wait_Events ? That sounds like a good idea, as it is true that the docs are rather sparse about the meaning behind a given wait event showing a lot in profiles and what it actually means for your application. We have a couple of links from the docs to the wiki, so it could be an idea to add a link to the wiki in the docs near the wait event table. more to the point, this makes me wonder if actually a better place for such stuff would be a new section dedicated to wait event profiles here: https://www.postgresql.org/docs/devel/monitoring.html -- Michael Attachments: [application/pgp-signature] signature.asc (833B, 2-signature.asc) download ^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: wait event docs 2019-12-12 22:07 wait event docs Jeremy Schneider <[email protected]> 2019-12-13 06:50 ` Re: wait event docs Michael Paquier <[email protected]> @ 2019-12-21 22:46 ` Bruce Momjian <[email protected]> 0 siblings, 0 replies; 3+ messages in thread From: Bruce Momjian @ 2019-12-21 22:46 UTC (permalink / raw) To: Michael Paquier <[email protected]>; +Cc: Jeremy Schneider <[email protected]>; [email protected] On Fri, Dec 13, 2019 at 03:50:29PM +0900, Michael Paquier wrote: > On Thu, Dec 12, 2019 at 02:07:14PM -0800, Jeremy Schneider wrote: > > The wait event information in PostgreSQL is very helpful for > > troubleshooting. I always reference the PostgreSQL docs first, and when > > people ask me about wait events that where I send them first. The list > > of wait events there is comprehensive, but the descriptions are a bit > > terse and often use vocabulary that requires some familiarity with the > > internals to understand. > > (I think that it would be better to avoid cross-posting among multiple > lists. Please note that I have removed -www and -general in my reply, > keeping -docs because that7s the most meaningful) > > > Could we create a new wiki page as a starting point, and we could draft > > up and maintain something there for a little while? Maybe a place like > > https://wiki.postgresql.org/wiki/Wait_Events ? > > That sounds like a good idea, as it is true that the docs are rather > sparse about the meaning behind a given wait event showing a lot in > profiles and what it actually means for your application. We have a > couple of links from the docs to the wiki, so it could be an idea to > add a link to the wiki in the docs near the wait event table. more to > the point, this makes me wonder if actually a better place for such > stuff would be a new section dedicated to wait event profiles here: > https://www.postgresql.org/docs/devel/monitoring.html Agreed, it probably should be in the official docs. -- Bruce Momjian <[email protected]> http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription + ^ permalink raw reply [nested|flat] 3+ messages in thread
end of thread, other threads:[~2019-12-21 22:46 UTC | newest] Thread overview: 3+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2019-12-12 22:07 wait event docs Jeremy Schneider <[email protected]> 2019-12-13 06:50 ` Michael Paquier <[email protected]> 2019-12-21 22:46 ` Bruce Momjian <[email protected]>
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