Обсуждение: Help with connections

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Help with connections

От
Gourish Singbal
Дата:
Guys i need some help.

Initially the connections to the database were 3 as seen using
netstat -a -n | grep "ESTAB" | grep <ip>
and ps -ef | grep postgres

After some time the connections suddenly incresed to 53 using the
above commands.

if i do
/usr/local/pgsql/bin/psql -d <database>  -c "select
c.relname,d.datname,transaction,pid,mode,granted from pg_locks
l,pg_class c,pg_database d where l.relation=c.oid and
l.database=d.oid";

i get only
      relname       |    datname     | transaction |  pid  |      mode
      | granted
--------------------+----------------+-------------+-------+-----------------+---------
 pg_class           | rpt_production |             | 25903 | AccessShareLock | t
 pg_locks           | rpt_production |             | 25903 | AccessShareLock | t
 pg_class_oid_index | rpt_production |             | 25903 | AccessShareLock | t

That means there were no tables accessed at this particular time. But
why is the connections to database showing 53 ?.

The Applicatoin is closing the connections. After about 30 -40 secs
the connections drop to 4 or 5 agian.

Please advice the max number of conenctions are 100 in the conf file
.. how about increasing to 200 ?.

--
Best,
Gourish Singbal

Re: Help with connections

От
Gourish Singbal
Дата:
Found the problem.
The Application opens the connections retrives the result set and does
processing on the data based on certian logic and than closes the
connections.
But during the time  application does processing the connections are
open . thats the time i see 53 idle connections.

regards
Gourish


On 5/12/05, Gourish Singbal <gourish@gmail.com> wrote:
> Guys i need some help.
>
> Initially the connections to the database were 3 as seen using
> netstat -a -n | grep "ESTAB" | grep <ip>
> and ps -ef | grep postgres
>
> After some time the connections suddenly incresed to 53 using the
> above commands.
>
> if i do
> /usr/local/pgsql/bin/psql -d <database>  -c "select
> c.relname,d.datname,transaction,pid,mode,granted from pg_locks
> l,pg_class c,pg_database d where l.relation=c.oid and
> l.database=d.oid";
>
> i get only
>      relname       |    datname     | transaction |  pid  |      mode
>      | granted
> --------------------+----------------+-------------+-------+-----------------+---------
> pg_class           | rpt_production |             | 25903 | AccessShareLock | t
> pg_locks           | rpt_production |             | 25903 | AccessShareLock | t
> pg_class_oid_index | rpt_production |             | 25903 | AccessShareLock | t
>
> That means there were no tables accessed at this particular time. But
> why is the connections to database showing 53 ?.
>
> The Applicatoin is closing the connections. After about 30 -40 secs
> the connections drop to 4 or 5 agian.
>
> Please advice the max number of conenctions are 100 in the conf file
> .. how about increasing to 200 ?.
>
> --
> Best,
> Gourish Singbal
>


--
Best,
Gourish Singbal