Re: [PERFORM] Strange performance degradation

2009-11-25 Thread Matthew Wakeling
On Tue, 24 Nov 2009, Denis Lussier wrote: Bouncing the app will roll back the transactions. Depends on the application. Some certainly use a shutdown hook to flush data out to a database cleanly. Obviously if you kill -9 it, then all bets are off. Matthew -- Software suppliers are trying

Re: [PERFORM] Strange performance degradation

2009-11-24 Thread Matthew Wakeling
On Tue, 24 Nov 2009, Denis Lussier wrote: IMHO the client application is already confused and it's in Prod. Shouldn't he perhaps terminate/abort the IDLE connections in Prod and work on correcting the problem so it doesn't occur in Dev/Test?? The problem is, the connection isn't just IDLE - it

[PERFORM] Strange performance degradation

2009-11-20 Thread Lorenzo Allegrucci
Hi all, I'm experiencing a strange behavior with my postgresql 8.3: performance is degrading after 3/4 days of running time but if I just restart it performance returns back to it's normal value.. In normal conditions the postgres process uses about 3% of cpu time but when is in degraded

Re: [PERFORM] Strange performance degradation

2009-11-20 Thread A. Kretschmer
In response to Lorenzo Allegrucci : Hi all, I'm experiencing a strange behavior with my postgresql 8.3: performance is degrading after 3/4 days of running time but if I just restart it performance returns back to it's normal value.. In normal conditions the postgres process uses about 3%

Re: [PERFORM] Strange performance degradation

2009-11-20 Thread Lorenzo Allegrucci
A. Kretschmer wrote: In response to Lorenzo Allegrucci : Hi all, I'm experiencing a strange behavior with my postgresql 8.3: performance is degrading after 3/4 days of running time but if I just restart it performance returns back to it's normal value.. In normal conditions the postgres

Re: [PERFORM] Strange performance degradation

2009-11-20 Thread Guillaume Cottenceau
Lorenzo Allegrucci lorenzo.allegrucci 'at' forinicom.it writes: A. Kretschmer wrote: In response to Lorenzo Allegrucci : Hi all, I'm experiencing a strange behavior with my postgresql 8.3: performance is degrading after 3/4 days of running time but if I just restart it performance returns

Re: [PERFORM] Strange performance degradation

2009-11-20 Thread Matthew Wakeling
On Fri, 20 Nov 2009, Lorenzo Allegrucci wrote: performance is degrading... In normal conditions the postgres process uses about 3% of cpu time but when is in degraded conditions it can use up to 25% of cpu time. You don't really give enough information to determine what is going on here.