Re: out of memory error - Mailing list pgsql-admin
| From | Vincent Dautremont |
|---|---|
| Subject | Re: out of memory error |
| Date | |
| Msg-id | CAA4Vp4-nU6qa6r0NE314oWpM3eim19h4k57NAu4XCq18yN2qiw@mail.gmail.com Whole thread Raw |
| In response to | Re: out of memory error (Tom Lane <tgl@sss.pgh.pa.us>) |
| Responses |
Re: out of memory error
|
| List | pgsql-admin |
Thanks,
So I've been able to find what's causing my postgres process memory amount to grow, but I don't know why it happens.
So, my software is updating 6 rows/second on my main database.
Rubyrep is running on my server with thebackup database doing a "replicate"
The huge TopMemoryContext problem and memory size of the postgres process are happening on my backup database.
I've found out that when my software does these updates the memory of the postgres process grows constantly at 24 MB/hour. when I stop my software to update these rows, the memory of the process stops to grow.
also I've noticed that when I stop rubyrep, this postgres process disappear.
I'm running rubyrep 1.2.0 and here is my rubyrep config file :
I don't know what other information I could add to that.
Vincent.
So I've been able to find what's causing my postgres process memory amount to grow, but I don't know why it happens.
So, my software is updating 6 rows/second on my main database.
Rubyrep is running on my server with thebackup database doing a "replicate"
The huge TopMemoryContext problem and memory size of the postgres process are happening on my backup database.
I've found out that when my software does these updates the memory of the postgres process grows constantly at 24 MB/hour. when I stop my software to update these rows, the memory of the process stops to grow.
also I've noticed that when I stop rubyrep, this postgres process disappear.
I'm running rubyrep 1.2.0 and here is my rubyrep config file :
RR::Initializer::run do |config|
config.left = { # main database
:adapter => 'xxx',
:database => 'yyy',
:username => 'zzz',
:password => 'ttt',
:host => '10.97.14.102'
}
config.right = { # backup database
:adapter => 'xxx',
:database => 'yyy',
:username => 'zzz',
:password => 'ttt',
:host => '10.97.14.101'
}
config.options[:sync_conflict_handling] = :right_wins
config.options[:replication_conflict_handling] = :right_wins
config.include_tables 'archiver'
config.include_tables 'camera'
config.include_tables 'cda'
config.include_tables 'component_restart'
config.include_tables 'operation_mode'
config.include_tables 'ptz_lock'
config.include_tables 'standby_table'
config.include_tables 'video_output'
end
Vincent.
On Tue, May 22, 2012 at 4:04 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Vincent Dautremont <vincent@searidgetech.com> writes:Well, yeah, that is the common way to define a function. The question
>> An entirely blue-sky guess as
>> to what your code might be doing to trigger such a problem is if you
>> were constantly replacing the same function's definition via CREATE OR
>> REPLACE FUNCTION.
> Do you mean that what would happen is that when we call the plpgsql
> function, it executes each time a create or replace, then execute the
> function ?
> because my functions are all written like that :
> -- Function: spzoneinsert(integer, integer)
>> CREATE OR REPLACE FUNCTION spzoneinsert(i_zoneid integer, i_output_port
>> integer)
>> RETURNS void AS
was about whether you are constantly re-executing this same SQL
thousands of times over the course of a session. I think it would take
actually using the function in between such redefinitions to provoke a
plan leak, but if you were doing that it might explain the problem.
regards, tom lane
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