On Thu, 10 May 2001, Ben Carterette wrote:
> I'm running a web server on one machine (Apache 1.3+Tomcat 3.2+mod_jk)
> with some databases (postgresql 7.1), and a dedicated database server on
> another machine (postgresql 7.0.2). A lot of my web pages establish a
> connection to a database on either machine and store the Connection
> object in a session so's I don't have to create a new one every page.
> Well, it seems these connections, which never get explicitly closed, are
> never dying. Some of them, anyway. I haven't been able to predict
> which ones are going to close themselves and which ones will stay open
> for days, but some of them are still taking up a process days later.
This is not unusual, if you are using persistant connections to
PostgreSQL..
[dominic@postgres dominic]$ ps xauwf | grep 'post'
postgres 15530 0.0 0.0 5924 492 ? S 2000 0:35 /usr/bin/postmaster
postgres 16865 0.0 0.3 6180 2048 ? S Feb13 0:02 \_ /usr/bin/postgres
postgres 16928 0.0 0.3 6152 2008 ? S Feb13 0:02 \_ /usr/bin/postgres
postgres 25289 0.0 0.5 6184 2820 ? S Feb27 0:06 \_ /usr/bin/postgres
postgres 25290 0.0 0.5 6136 2788 ? S Feb27 0:06 \_ /usr/bin/postgres
postgres 25291 0.0 0.5 6168 2820 ? S Feb27 0:07 \_ /usr/bin/postgres
postgres 25292 0.0 0.5 6176 2800 ? S Feb27 0:05 \_ /usr/bin/postgres
postgres 25293 0.0 0.5 6152 2796 ? S Feb27 0:06 \_ /usr/bin/postgres
postgres 13625 0.0 0.5 6140 2788 ? S Mar06 0:05 \_ /usr/bin/postgres
postgres 11336 0.0 0.5 6148 2784 ? S Mar27 0:02 \_ /usr/bin/postgres
postgres 11337 0.0 0.5 6148 2692 ? S Mar27 0:02 \_ /usr/bin/postgres
postgres 32236 0.0 0.5 6272 2840 ? S Apr03 0:02 \_ /usr/bin/postgres
postgres 3947 0.0 0.5 6284 2800 ? S Apr05 0:01 \_ /usr/bin/postgres
As you can see, we've got several postgres backends running... We just let
them sit there.
--
Dominic J. Eidson
"Baruk Khazad! Khazad ai-menu!" - Gimli
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TIP 4: Don't 'kill -9' the postmaster
