On Mon, 6 Aug 2012 09:27:32 -0400 jtkells <[email protected]> wrote:
> Hi, > > I'm having a bit of trouble here getting a master to slave replication > environment working after a database schema upgrade. I am using > bucardo 4.4.8 on a postgreSQL 8..4.8 database > > I have been running this master slave configuration for a long time. > We recently updated our schema(adding a lot of new columns etc. to a > lot of tables). To accommodate these changes I performed the following > steps: > 1) I stop bucardo > 2) I remove all tables from bucardo > 3) I remove the herd that these tables belonged to > On the database side (Master) > I drop the schema and recreate the schema and all its tables (new > columns) > I load the tables through program code which generates millions of > records to these tables (100). > I do a pg_dump of this schema and copy it over to the slave database > On the slave database: > I drop all the replicated tables and run pg_restore. > > On both system I analyze these tables > On the master database I > 4) I add the tables back into bucardo > 5) I create the herd for them > 6) and I start bucardo > Bucardo goes through checks and generates the following record for > each of the tables > [Mon Aug 6 09:16:07 2012] CTL Herd member 19494511: > ac_5300_18b_esri.fence > [Mon Aug 6 09:16:07 2012] CTL Target oids: agis_slave:4480021 > > I update some columns in a table to test replication and nothing > happens. I have tried to do several commands to get bucardo to start > processing the new changes (reload, kick etc.) but still nothing. I > suspect the "Latest bad reason: Controller cleaning out unstarted q > entry " is causing the problem but not sure how to fix this? Should I > have deleted the sync's? > > > Name Type State PID Last_good Time I/U/D Last_bad Time > ========+=====+=====+=====+=========+=====+=====+========+==== > agis_18b| P |idle |12596|4m39s |9s |0/0/0|25m49s |0s > > > Sync: agis_18b (pushdelta) esri18b => agis_slave (Active) > > > postgres@arp-db:~$ bucardo_ctl status agis_18b > Days back: 3 User: bucardo Database: bucardo > ====================================================================== > Sync name: agis_18b > Current state: idle (PID = 12596) > Type: pushdelta > Source herd/database: esri18b / agis_master > Target database: agis_slave > Tables in sync: 100 > Last good: 5m 25s (time to run: 9s) > Last good time: Aug 06, 2012 09:16:17 Target: agis_slave > Ins/Upd/Del: 0 / 0 / 0 > Last bad: 26m 35s (time to run: 0s) > Last bad time: Aug 06, 2012 08:55:07 Target: agis_slave > Latest bad reason: Controller cleaning out unstarted q entry > PID file: /tmp/bucardo.ctl.sync.agis_18b.pid > PID file created: Mon Aug 6 09:16:07 2012 > Status: active > Limitdbs: 0 > Priority: 0 > Checktime: none > Overdue time: 00:00:00 > Expired time: 00:00:00 > Stayalive: yes Kidsalive: yes > Rebuild index: 0 Do_listen: no > Ping: yes Makedelta: no > Onetimecopy: 0 > > > > Thanking you in advance Further investigation I updated some records and saw that no entries in the q table were created. There are triggers on the tables but looking at the triggers in pg_trigger table I find that the triggers are disabled (tgenabled = FALSE in pg_trigger table). What process did I miss in bucardo that caused this (I dropped the tables and herd)? If I didn't miss anything is it safe to enable these triggers at the PostgreSQL level and is there anything else I need to do? Also, was there anything else that I should have done when I was removing the tables and herds in the first place? Thanking you in advance _______________________________________________ Bucardo-general mailing list [email protected] https://mail.endcrypt.com/mailman/listinfo/bucardo-general
