On 06/03/15 16:06, ben.play wrote:
The query is (unfortunately) generated by Doctrine 2 (Symfony 2).
We can’t change the query easily.
Well, then you'll probably have to buy more RAM, apparently.
This is my config :
max_connections = 80
shared_buffers = 15GB
work_mem = 384MB
maintenance_work_mem = 1GB
#temp_buffers = 8MB
#temp_file_limit = -1
effective_cache_size = 44GB
If I put a temp_file_limit …Are all my queries (who have to write on
disk) will crash ?
As you can see… I have 64 gb of Ram, but less than 3 Gb is used !
ben@bdd:/home/benjamin# free -m
total used free shared buffers cached
Mem: 64456 64141 315 15726 53 61761
-/+ buffers/cache: 2326 62130
Swap: 1021 63 958
Thanks guys for your help :)
I don't see why you think you have less than 3GB used. The output you
posted clearly shows there's only ~300MB memory free - there's 15GB
shared buffers and ~45GB of page cache (file system cache).
But you still haven't shows us the query (the EXPLAIN ANALYZE of it), so
we can't really give you advice.
--
Tomas Vondra http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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