Re: Monitoring activities of PostgreSQL
От | Filip Rembiałkowski |
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Тема | Re: Monitoring activities of PostgreSQL |
Дата | |
Msg-id | AANLkTimgCGw40IamGKgEUwFmvegquQ-3PHJ1ebxdZyPI@mail.gmail.com обсуждение исходный текст |
Ответ на | Monitoring activities of PostgreSQL (Allan Kamau <kamauallan@gmail.com>) |
Ответы |
Re: Monitoring activities of PostgreSQL
|
Список | pgsql-general |
2010/6/15 Allan Kamau <kamauallan@gmail.com>
I do have a PL/SQL function that gets executed called many times but
with different parameter values each of these times. For most
invocations of this function run in a couple of seconds however some
invocations of the same function run (on the same dataset) for hours
with very little disk activity but high CPU.
How can I monitor the actual DB activities during such times so I may
better understand what the situation truly is.
You can monitor system parameters (CPU, disk IO, memory) with standard OS-specific tools (on Unix: top, ps iostat,vmstat)
I have seen some users
on this list posting some complex log/outputs, this are the kind of
outputs I would like to capture and view. Where are they?
they are mostly in log files or output from EXPLAIN ANALYZE command
for general info see
http://www.postgresql.org/docs/current/static/runtime-config-logging.html
http://www.postgresql.org/docs/8.4/static/using-explain.html
http://wiki.postgresql.org/wiki/Performance_Optimization
and this list archives.
Filip
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