[PERFORM] Bad plan by Planner (Already resolved?)

2011-10-17 Thread Robins Tharakan
Hi, I stumbled upon a situation where the planner comes with a bad query plan, but I wanted to mention upfront that I'm using a dated PG version and I already see an update which mentions about improving planner performance. I just wanted to check if this issue is already resolved, and if

[PERFORM] Optimize the database performance

2011-10-17 Thread Micka
Hi, I've a postgres 9.1 database used for map generating ( tiles ). The system has 24Go RAM and 5 processors. I'm using geoserver to generate the tiles. My data used 8486 MB = psql -d gis -c SELECT pg_size_pretty(pg_database_size('gis')) I've carefully indexes the table by the the_geom column.

Re: [PERFORM] Optimize the database performance

2011-10-17 Thread MirrorX
hello Micha, i think that noone can tell you much without more information about your system. roughly i would say that you could change the following parameters: shared_buffers = 1024MB - 6GB work_mem = 256MB - 30-50 MB effective_cache_size = 5120MB - 16GB (depends on whether its a dedicated db

Re: [PERFORM] Tablespace files deleted automatically.

2011-10-17 Thread Robert Klemme
On Fri, Oct 14, 2011 at 8:19 PM, Josh Berkus j...@agliodbs.com wrote: Vishnu, I am using PostgreSQL 8.4 in windows.  I have  created a database and some tables on it. Also created a table space and some tables in it. My application inserts data into these tables in every second. The

Re: [PERFORM] Bad plan by Planner (Already resolved?)

2011-10-17 Thread Kevin Grittner
Robins Tharakan robins.thara...@comodo.com wrote: I stumbled upon a situation where the planner comes with a bad query plan, but I wanted to mention upfront that I'm using a dated PG version and I already see an update which mentions about improving planner performance. I just wanted to

Re: [PERFORM] Optimize the database performance

2011-10-17 Thread Andy Colson
On 10/17/2011 04:48 AM, Micka wrote: Hi, I've a postgres 9.1 database used for map generating ( tiles ). The system has 24Go RAM and 5 processors. I'm using geoserver to generate the tiles. My data used 8486 MB = psql -d gis -c SELECT pg_size_pretty(pg_database_size('gis')) I've carefully

Re: [PERFORM] Optimize the database performance

2011-10-17 Thread Cédric Villemain
2011/10/17 Micka mickamus...@gmail.com: Hi, I've a postgres 9.1 database used for map generating ( tiles ). The system has 24Go RAM and 5 processors. I'm using geoserver to generate the tiles. My data used 8486 MB  = psql -d gis -c SELECT pg_size_pretty(pg_database_size('gis')) I've

Re: [PERFORM] Bad plan by Planner (Already resolved?)

2011-10-17 Thread Robins Tharakan
Hi, I'll try to answer in-line. On 10/17/2011 09:32 PM, Kevin Grittner wrote: First off, did you use pg_upgrade from an earlier major release? If so, be sure you've dealt with this issue: Although I joined recently, I doubt whether pg_upgrade was used here. And this doesn't look like the