Hi, Thank you for explanation about it.
I've understood that it is intended thing. Sorry to bother you. regards, (2012/06/07 2:05), Tom Lane wrote: > katsumata.tomon...@po.ntts.co.jp writes: >> Now I'm testing the behavior of checkpointer, >> and I found a difference with PostgreSQL9.1 behavior. >> When I send SIGINT signal to writer process on PostgreSQL9.1, >> writer process starts checkpoint. >> But, when I send SIGINT signal to checkpointer on PostgreSQL9.2beta2, >> checkpointer doesn't start checkpoint. > AFAICT, the checkpointer does consider starting a checkpoint, but it > decides not to do one, because of this recent change: > http://git.postgresql.org/gitweb/?p=postgresql.git&a=commitdiff&h=18fb9d8d21a28caddb72c7ffbdd7b96d52ff9724 > > If you had done enough updates since the last checkpoint, it would do > one. So this isn't a bug, but an intentional reduction in checkpoint > frequency. (Note that sending SIGINT is not, and never has been, > equivalent to forcing a checkpoint.) > > regards, tom lane > -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
