On Tue, 2004-10-26 at 13:42, Anjan Dave wrote:
> It probably is locking issue. I got a long list of locks held when we ran select * 
> from pg_locks during a peak time.
> 
> relation | database | transaction |  pid  |       mode       | granted 
> ----------+----------+-------------+-------+------------------+---------
>     17239 |    17142 |             |  3856 | AccessShareLock  | t

How many have granted = false?

> Vmstat would show a lot of disk IO at the same time.
> 
> Is this pointing towards a disk IO issue?

Not necessarily. Is your IO reaching the limit or is it just heavy?


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