Re: max_worker_processes on the standby
Robert Haas <robertmhaas@gmail.com>
From: Robert Haas <robertmhaas@gmail.com>
To: Fujii Masao <masao.fujii@gmail.com>
Cc: Alvaro Herrera <alvherre@2ndquadrant.com>,
pgsql-docs <pgsql-docs@postgresql.org>
Date: 2015-08-04T00:56:27Z
Lists: pgsql-hackers, pgsql-docs
On Thu, Jul 16, 2015 at 12:07 AM, Fujii Masao <masao.fujii@gmail.com> wrote: > One example which makes me a bit confusing is; both master and > standby are running fine with track_commit_timestamp disabled, > then I enable it only on the master. That is, the value of > track_commit_timestamp is not the same between master and standby. > No error happens in this case. According to the code of xlog_redo(), > the commit timestamp tracking mechanism is activated in this case. > However, after that, if standby is restarted, standby emits an error > because the value of track_commit_timestamp is not the same between > master and standby. Simple question is; why do we need to cause > the standby fail in this case? Since I'm not familiar with the code of > track_commit_timestamp yet, I'm not sure whether this behavior is > valid or not. Hmm, that seems like awfully weird behavior. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
Commits
-
Cleanup commit timestamp module activaction, again
- 68cc162e454a 9.5.0 landed
- 531d21b75ff6 9.6.0 landed
-
Code review for transaction commit timestamps
- 6b61955135e9 9.6.0 cited