Oops. This should have been posted to pgpool-hackers. Sorry for noise. -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese: http://www.sraoss.co.jp
> Hi, > > I have just committed changes to enhance online recovery in streaming > replication mode. Pgpool-II had to restart child process to recognize > failback node. Now pgpool-II becomes a little bit smarter and does not > need to restart children. This means that client sessions started > before online recovery can continue while doing online recovery. > > The trick is to have local backend status cache in pgpool child. It > copies backend status into local memory. Thus the process continues to > disregard failback node until the session ends. Once the session ends, > the process exits with status 1, and pgpool-II main restart new one, > which will recognize failback node. > > Note that this enhancement is applied to pcp_attach_node as well. > -- > Tatsuo Ishii > SRA OSS, Inc. Japan > English: http://www.sraoss.co.jp/index_en.php > Japanese: http://www.sraoss.co.jp > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
