(13/09/06 21:06), Tim Kane wrote:
Hi all,
I have a fairly simple query, running on a particularly large table. For
illustration:
echo "select * from really_big_table;" | psql my_database > /dev/null
When I monitor the memory usage of the psql session, it continually grows.
In fact, for this particularly large table it grows to the point of
consuming all swap, before the OOM killer takes steps to resolve it.
Clearly, this isn't what I'd like to happen.
My settings are:
Postgresql 9.1.9
work_mem = 256MB
effective_cache_size = 12GB
shared_buffers = 6GB
I have 24GB physical ram to play with.
This is a client side problem (not server size).
See the description of FETCH_COUNT, please.
http://www.postgresql.org/docs/9.2/static/app-psql.html
echo "select * from really_big_table;" | psql --variable=FETCH_COUNT=100
my_database > /dev/null
Regards,
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