From: Kevin Grittner <Kevin.Grittner@wicourts.gov>
To: Luiz K. Matsumura <luiz@planit.com.br>
To: brauagustin-susc@yahoo.com.ar
Cc: pgsql-performance@postgresql.org
Subject: Re: Low CPU Usage
Date: Fri, 21 Sep 2007 15:57:34 -0500
Message-ID: <46F3E9ED.EE98.0025.0@wicourts.gov> (raw)
In-Reply-To: <46F42C54.7070901@planit.com.br>
References: <322942.8256.qm@web30004.mail.mud.yahoo.com>
<46F42C54.7070901@planit.com.br>
>>> On Fri, Sep 21, 2007 at 3:40 PM, in message <46F42C54.7070901@planit.com.br>,
"Luiz K. Matsumura" <luiz@planit.com.br> wrote:
> but in suddenly the performance slow down. We noticed that the problem
> was with the time to connect with the server, that was very slow.
> I think that was some DNS problem (but not sure), because one time we
> cleared nameserver clauses in the /etc/resolv.conf the performance
> return to the normal.
You may have it there. In some versions of Java, on Windows, connection
times are horribly slow unless the machine's IP address has a reverse
DNS entry. Perhaps the new machine lacks such an entry, or there's a
different version of Java in use?
-Kevin
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To: pgsql-performance@postgresql.org
Cc: Kevin.Grittner@wicourts.gov, luiz@planit.com.br, brauagustin-susc@yahoo.com.ar
Subject: Re: Low CPU Usage
In-Reply-To: <46F3E9ED.EE98.0025.0@wicourts.gov>
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