Re: [PERFORM] Replication: Slony-I vs. Mammoth Replicator vs. ?

2004-08-16 Thread Vivek Khera
One more point for your list: Choose Slony if Replicator doesn't support your platform. :-) -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D.Khera Communications, Inc. Internet: [EMAIL PROTECTED] Rockville, MD +1-301-869-4449

[PERFORM] Strange problems with more memory.

2004-08-16 Thread Stef
Hi all, I'm running postgres 7.3.4 on a quad Xeon 2.8 GHz with Mem: 1057824768 309108736 7487160320 12242944 256413696 Swap: 518053888 8630272 509423616 on Linux version 2.4.26-custom Data directory is mounted with noatime. Nothing else but one 11GB database is running on this

Re: [PERFORM] Strange problems with more memory.

2004-08-16 Thread Stef
Tom Lane mentioned : = Turn off = memory overallocation in your kernel to get more stable behavior when = pushing the limits of available memory. I think this will already help a lot. Thanks!! = If your concern is with a single nightly process, then that quad Xeon is = doing squat for you,

Re: [PERFORM] Index type

2004-08-16 Thread Josh Berkus
Ilia, If I create btree index on all columns (A,B,C..), here is what explain analyze gives me: - Index Scan using all_ind on test2 (cost=0.00..4.51 rows=1 width=24) (actual ti me=0.000..0.000 rows=5 loops=1) Index Cond:

Re: [PERFORM] Timestamp-based indexing

2004-08-16 Thread Tom Lane
Josh Berkus [EMAIL PROTECTED] writes: monitor=# explain analyze select * from eventtable where timestamp CURRENT_TIMESTAMP - INTERVAL '10 minutes'; Hmmm. What verison of PostgreSQL are you running? I seem to remember an issue in one version with selecting comparisons against now(). I'm