Re: What is considered a "slow processes"

Le 06/01/2011 17:53, Benjamin Krajmalnik a écrit :
> While playing around with pgadmin to see the state of running queries, I
> noticed that all of the queries are falling under the category of "slow
> processes" or "idle process". Some of the process whose query is
> showing as idle are tagged as idle processes, while some are tagged as
> slow processes.
>

There is actually more possibilities:

* idle process: for each process that don't currently run a query and
aren't in a transaction block
* blocked process: for each process waiting on a lock
* active process: for each process executing a query since less than
10 seconds
* slow process: for each process executing a query since at least
10 seconds

> Could this be an "artifact" of using a connection pooler, since the
> client start times are sometimes a few minutes old? What is the
> criteria for determining if a process is "slow"?
>

We use query_start to check if a query is slow, so I don't think it has
anything to do with a connection pooler.

> Running pg 8.4 on FreeBSD 7.2 amd64.
>

--
Guillaume
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