On 30/03/2010 11:27 PM, Lothar Bongartz wrote:

For this reason the database is stalling from time to time and I have to
restart the server.

Are those stalls accompanied by any mention of checkpoints in the logs?

The default PostgreSQL configuration isn't tuned for larger workloads - it's very minimalist. You probably need to increase your checkpoint_segments . It may also be a good idea to look at shared_buffers .

Before just re-starting the server, you should look at `iostat', `vmstat', `top', `iotop' or other suitable performance monitoring tools and see if the server's actually DOING anything. You'll probably find it's busy with disk I/O and not really stalled at all.

--
Craig Ringer

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