Re: Postres dilemma

Hello,

Perhaps you could provide some more detailed information?

Example of queries?
Type of hardware?
Operating system?

Why are you running a vacuum every 45 seconds? Increase your fsm_pages and
run it every hour.

Are you sure the vacuums are trampling eachother and thus getting more 
than one
vacuum running at a time?

J


Neeraj Sharma wrote:

>Hi
>
>I am using Postgres 7.3.4 over linux Redhat 7.3 on
>i686 machine.
>
>My app has one parent table and five child tables. I
>mean the parent table has a primary key and child
>tables have foreign key relationship with parent. 
>My App is doing 500 inserts initially in each table.
>After all this done, we inserting 50 in each table and
>deleting previous 50 records every seconds. System
>performs well for awhile (<30 Hrs). After 30 hrs I
>seen that dir size of $PGDATA/base dir is keep on
>growing and to goes up to 2G in 48 hrs. App is also
>doing vacuum every 45 seconds. Every time vacuum is
>triggered, the system goes extreamly slugginsh, and
>results in various errors like deadlock
>detected(confirmed in the $PGDATA/../LOG/logfile).
>vmstat is also showing that blocks sents to the block
>device (disk) is going crazy.
>I do not know what is the remedy for this problem. If
>someone has come across to the issue, please help me
>as soon as possible. 
>++++++++++++++++++++++++++++++++++++++++++++++++++
>NOTE: I can not use Postgres 7.4 and higher releases
>beacuse postmaster crashes gauranteed in (20hrs). I
>have already reported this bug many times (Bug # 1104
>is one of them). All crashes show the same behavior 
>and error messages. 
>(specified item offset is too large)
>++++++++++++++++++++++++++++++++++++++++++++++++++
>
>I appreciate if some one have the solution for my
>problem. otherwise it looks like all our app
>development done on top of Postgres is going in vain.
>
>Thanking you in advance.
>
>Neeraj K Sharma
>email: neeraj.sharma@arroyo.tv
>       neerajsharma@hotmail.com
>
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