Обсуждение: Regarding postgre slow query response with pgp_sym_decrypt
Hello, I have a simple query in which I am decrypting the column values using pg= p_sym_decrypt function. Query is taking 13 secs to execute which is quite long. Can you please help me as soon as possible. I have gone through the Suppo= rt documentation but still it didn't solve my problem. Thanks & Regards, Mitali Dalvi **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended sol= ely for the use of the addressee(s). If you are not the intended recipient, p= lease notify the sender by e-mail and delete the original message. Further, you= are not to copy, disclose, or distribute this e-mail or its contents to any other= person and any such actions are unlawful. This e-mail may contain viruses. Infosys h= as taken every reasonable precaution to minimize this risk, but is not liable for = any damage you may sustain as a result of any virus in this e-mail. You should carry= out your own virus checks before opening the e-mail or attachment. Infosys reserve= s the right to monitor and review the content of all messages sent to or from t= his e-mail address. Messages sent to or from this e-mail address may be stored on th= e Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS***
Hi, I want to enable WAL archive on the replica, I am advised that WAL = archive can only be enabled on the Master, can you please advise if this = is a bug and any workaround available? regards now you can only enable WAL archive on the Master server,it will not = take effect on replication server. I can't find the doc which explicit prohibit WAL archive on the = replication server,and there are WAL generated in the slave pg_xlog dir = with archive_status subdir,so I think this may be a bug.=20 Jov blog: http:amutu.com/blog 2013/8/11 Hi, I want to archive WAL log files in the replication server as well, the = postgresql.conf is added with following new lines, after restarting PG, = the /var/pgsql/data/archive/ is still empty after 1 hour: ### new lines added today # # to enable the replica as Hot Standby hot_standby =3D on # # to enable WAL archive (coped from master's conf) wal_level =3D hot_standby max_wal_senders =3D 5 wal_keep_segments =3D 500 wal_sync_method =3D fsync fsync =3D on archive_mode =3D on archive_command =3D 'test ! -f /var/pgsql/data/archive/%f && cp %p = /var/pgsql/data/archive/%f' ### ls -la /var/pgsql/data/archive/ total 8 drwx------ 2 postgres root 4096 Aug 11 16:12 ./ drwx------ 3 postgres root 4096 Aug 10 10:59 ../ PG: 9.2.4 OS: Ubuntu 12.04 I am new to Streaming Replication, can you please advise why there is no = WAL archive files found in the archive folder? regards
On Mon, Aug 12, 2013 at 1:53 AM, ascot.moss@gmail.com <ascot.moss@gmail.com> wrote: > I want to enable WAL archive on the replica, I am advised that WAL archive > can only be enabled on the Master, can you please advise if this is a bug > and any workaround available? Archiving a WAL file is only done once its generation has been completed by a master server. A standby node only replays WAL files, copying them from the indicated archive folder with restore_command to its local pg_xlog folder when necessary, and performs no archive actions. http://www.postgresql.org/docs/devel/static/continuous-archiving.html#BACKUP-ARCHIVING-WAL -- Michael
Thanks so much. On 12 Aug 2013, at 6:45 AM, Michael Paquier wrote: > On Mon, Aug 12, 2013 at 1:53 AM, ascot.moss@gmail.com > <ascot.moss@gmail.com> wrote: >> I want to enable WAL archive on the replica, I am advised that WAL = archive >> can only be enabled on the Master, can you please advise if this is a = bug >> and any workaround available? > Archiving a WAL file is only done once its generation has been > completed by a master server. A standby node only replays WAL files, > copying them from the indicated archive folder with restore_command to > its local pg_xlog folder when necessary, and performs no archive > actions. > = http://www.postgresql.org/docs/devel/static/continuous-archiving.html#BACK= UP-ARCHIVING-WAL > --=20 > Michael