On Wed, Feb 2, 2011 at 6:22 AM, Chris Burroughs <chris.burrou...@gmail.com> wrote: > On 01/28/2011 09:19 PM, Chris Burroughs wrote: >> Thanks Oleg and Zhu. I swear that wasn't a new hotspot version when I >> checked, but that's obviously not the case. I'll update one node to the >> latest as soon as I can and report back. > > > RSS over 48 hours with java 6 update 23: > > http://img716.imageshack.us/img716/5202/u2348hours.png > > I'll continue monitoring but RSS still appears to grow without bounds. > Zhu reported a similar problem with Ubuntu 10.04. While possible, it > would seem seam extraordinary unlikely that there is a glibc or kernel > bug affecting us both.
We're seeing a similar problem with one of our clusters (but over a longer time scale). Its possible that its not a leak, but just fragmentation. Unless you've told it otherwise, the jvm uses glibc's malloc implementation for off-heap allocations. We're currently running a test with jemalloc on one node to see if the problem goes away. -ryan
