]
Sent: Monday, June 28, 2010 3:45 PM
To: Benjamin Krajmalnik
Cc: Rajesh Kumar Mallah; Kevin Grittner; pgsql-
performa...@postgresql.org
Subject: Re: [PERFORM] cpu bound postgresql setup.
Benjamin Krajmalnik wrote:
Rajesh,
I had a similar situation a few weeks ago whereby performance all
Benjamin Krajmalnik wrote:
-Original Message-
From: Bruce Momjian [mailto:br...@momjian.us]
Sent: Monday, June 28, 2010 3:45 PM
To: Benjamin Krajmalnik
Cc: Rajesh Kumar Mallah; Kevin Grittner; pgsql-
performa...@postgresql.org
Subject: Re: [PERFORM] cpu bound postgresql setup
Benjamin Krajmalnik wrote:
Rajesh,
I had a similar situation a few weeks ago whereby performance all of a
sudden decreased.
The one tunable which resolved the problem in my case was increasing the
number of checkpoint segments.
After increasing them, everything went back to its normal
Dear List,
1. It was found that too many stray queries were getting generated
from rouge users and bots
we controlled using some manual methods.
2. We have made application changes and some significant changes have been done.
3. we use xfs and our controller has BBU , we changed barriers=1
I'm not clear whether you still have a problem, or whether the
changes you mention solved your issues. I'll comment on potential
issues that leap out at me.
Rajesh Kumar Mallah mallah.raj...@gmail.com wrote:
3. we use xfs and our controller has BBU , we changed barriers=1
to barriers=0 as
On Thu, Jun 24, 2010 at 8:57 PM, Kevin Grittner
kevin.gritt...@wicourts.gov wrote:
I'm not clear whether you still have a problem, or whether the
changes you mention solved your issues. I'll comment on potential
issues that leap out at me.
It shall require more observation to know if the
i do not remember well but there is a system view that (i think)
guides at what stage the marginal returns of increasing it
starts disappearing , i had set it a few years back.
Sorry the above comment was regarding setting shared_buffers
not effective_cache_size.
On Thu, Jun 24, 2010 at 10:55
Excerpts from Rajesh Kumar Mallah's message of jue jun 24 13:25:32 -0400 2010:
What prompted me to post to list is that the server transitioned from
being IO bound to CPU bound and 90% of syscalls being
lseek(XXX, 0, SEEK_END) = YYY
It could be useful to find out what file is being
Rajesh Kumar Mallah mallah.raj...@gmail.com wrote:
Kevin Grittner kevin.gritt...@wicourts.gov wrote:
max_connections = 300
As I've previously mentioned, I would use a connection pool, in
which case this wouldn't need to be that high.
We do use connection pooling provided to mod_perl
Rajesh Kumar Mallah mallah.raj...@gmail.com wrote:
PasteBin for the vmstat output
http://pastebin.com/mpHCW9gt
On Wed, Jun 23, 2010 at 8:22 PM, Rajesh Kumar Mallah
mallah.raj...@gmail.com wrote:
Dear List ,
I observe that my postgresql (ver 8.4.2) dedicated server has
turned cpu bound
Your response somehow landed in the subject line, apparently
truncated. I'll extract that to the message body and reply to what
made it through.
Rajesh Kumar Mallah mallah.raj...@gmail.com wrote:
Firstly many thanks for responding. I am concerned because the
load averages have increased and
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