RE: unexpected result for wastedbytes query after vacuum full

2019-12-09 Thread Mike Schanne
Yes, the additional bitmap could certainly explain the increase. Thanks, Mike -Original Message- From: Justin Pryzby [mailto:pry...@telsasoft.com] Sent: Friday, December 06, 2019 6:29 PM To: Mike Schanne Cc: pgsql-performa...@postgresql.org Subject: Re: unexpected result for wastedbytes

RE: Legal disclaimers on emails to this group

2019-12-09 Thread Mike Schanne
...@emolecules.com] Sent: Friday, December 06, 2019 1:42 PM To: Mike Schanne Cc: pgsql-performa...@postgresql.org Subject: Legal disclaimers on emails to this group (I've changed the original subject, "autovacuum locking question", of the sender's email so as not to hijack that thread.)

unexpected result for wastedbytes query after vacuum full

2019-12-06 Thread Mike Schanne
Hi all, This question is somewhat related to my previous question: https://www.postgresql.org/message-id/0871fcf35ceb4caa8a2204ca9c38e330%40USEPRDEX1.corp.kns.com I was attempting to measure the benefit of doing a VACUUM FULL on my database. I was using the query found here: https://wiki.postg

RE: autovacuum locking question

2019-12-06 Thread Mike Schanne
. From: Jeff Janes [mailto:jeff.ja...@gmail.com] Sent: Thursday, December 05, 2019 6:55 PM To: Mike Schanne Cc: pgsql-performa...@postgresql.org Subject: Re: autovacuum locking question On Thu, Dec 5, 2019 at 5:26 PM Mike Schanne mailto:mscha...@kns.com>> wrote: Hi, I am investigating a perfo

RE: autovacuum locking question

2019-12-06 Thread Mike Schanne
/ Thanks, Mike -Original Message- From: Tom Lane [mailto:t...@sss.pgh.pa.us] Sent: Thursday, December 05, 2019 6:49 PM To: Mike Schanne Cc: 'pgsql-performa...@postgresql.org' Subject: Re: autovacuum locking question Mike Schanne writes: > I am investigating a performance p

RE: autovacuum locking question

2019-12-05 Thread Mike Schanne
In this particular case autovacuum_count is 0. n_live_tup is 659,631 and n_dead_tup is 3,400,347. We are using the default vacuum parameters. From: Michael Lewis [mailto:mle...@entrata.com] Sent: Thursday, December 05, 2019 5:49 PM To: Mike Schanne Cc: pgsql-performa...@postgresql.org Subject

autovacuum locking question

2019-12-05 Thread Mike Schanne
Hi, I am investigating a performance problem in our application and am seeing something unexpected in the postgres logs regarding the autovacuum. 2019-12-01 13:05:39.029 UTC,"wb","postgres",6966,"127.0.0.1:53976",5ddbd990.1b36,17099,"INSERT waiting",2019-11-25 13:39:28 UTC,12/1884256,12615023,L