Thu Mar 22 12:31:02 PDT 2007
- Previous message: [Slony1-general] Vacuum full required?
- Next message: [Slony1-general] Vacuum full required?
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
"Victoria Parsons" <victoria.parsons at streamshield.com> writes: > pg_listener does not have any indexes, so no re-indexing to be done. Right; that's good news. > I cannot find the function you use pg_relation_size, but I can see the > rel_pages in pg_class stays at 1 for 'pg_listener' even though every > vacuum claims to be reducing the pages from some large number to 1. Is > the vacuum output lying to me? The utput below says it is reducing pages > from 97 to 1 but the data in pg_class shows it was only ever 1 page of > data. > sss=# select * from pg_listener order by listenerpid; > relname | listenerpid | notification > -------------------------+-------------+-------------- > _sss_repcluster_Node_3 | 5637 | 0 > _sss_repcluster_Confirm | 5637 | 0 > _sss_repcluster_Event | 5637 | 0 > _sss_repcluster_Node_3 | 5644 | 0 > _sss_repcluster_Node_2 | 7730 | 0 > _sss_repcluster_Confirm | 7730 | 0 > _sss_repcluster_Event | 7730 | 0 > _sss_repcluster_Node_2 | 7732 | 0 > _sss_repcluster_Restart | 7866 | 0 > _sss_repcluster_Event | 7866 | 0 > _sss_repcluster_Node_1 | 7873 | 0 > _sss_repcluster_Node_1 | 7874 | 0 > (12 rows) Unfortunately, it's common that whenever an event goes out to indicate (for instance) a new SYNC, all of the tuples associated with the node get updated. The more nodes there are, the more "listening" that happens. In Slony-I 1.2, there is an attempt to generate less dead tuples in pg_listener; things should improve there. -- select 'cbbrowne' || '@' || 'ca.afilias.info'; <http://dba2.int.libertyrms.com/> Christopher Browne (416) 673-4124 (land)
- Previous message: [Slony1-general] Vacuum full required?
- Next message: [Slony1-general] Vacuum full required?
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
More information about the Slony1-general mailing list