Hi,
On Tue, 13 Nov 2012, Aaron Bono wrote:
I have been struggling with an issue on our database server lately with
Postgres crashing our server by taking up too much RAM. To alleviate this
problem, I just upgraded from a 6 GB RAM server to a new 32 GB RAM server.
The new server is running Ubuntu 10 with nothing but PostgreSQL 8.4.14
installed.
Today, after being in use for only 24 hours, it hung the server again.
Now, when I run a check on memory usage, I get a quickly growing amount of
RAM being used:
free -mt
total used free shared buffers cached
Mem: 30503 20626 9876 0 143 15897
-/+ buffers/cache: 4586 25917
Swap: 1913 0 1913
Total: 32417 20626 11790
just in case nobody has noticed yet:
Above free output is linux telling you that use processes are using 4586 KB of ram wheres 25917 KB is free.
PostgreSQL is not hogging up you RAM. Linux is using unused ram for buffers and cache.
This is an ancient linux FAQ. Whatever amount of ram you put into a linux box free will show it used shortly after. Check the -/+ buffers line for the values you are looking for.
Greetings
Christian
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Christian Kratzer CK Software GmbH
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