Re: Constantly increasing per connection memory usage on pg 9.2

Dear Community,

we've recently moved one of our production databases from a 8.3 based server to a 9.2 installation. Our usage patterns remained the same, however, we noticed that the swap space in the server started to decrease with time.

We have roughly 16 connections to this database in an almost constant basis, pooled by a java connection pooler on the app side. This connections never expire (nor did they do with the 8.3 db).
However,  as you can see on this memory usage chart http://i.imgur.com/2sRRj1J.png it shows a rolleccoaster like pattern. When we restart our application, the connections are closed and the memory is freed.

Our work_mem is 2MB, so it does not warrant the large memory allocation. Also I am completely sure that this is the pg connection process that's eating up the memory.