Ah, it would appear I forgot to do that on the hudson machine. Thanks!
-- Dan Washusen On Friday, 25 March 2011 at 2:23 PM, Jonathan Ellis wrote: > Have you run nodetool scrub? The data versioning problem scrub fixes > can manifest itself as trying to read GB of data into memory during > compaction. > > On Thu, Mar 24, 2011 at 8:52 PM, Dan Washusen <d...@reactive.org> wrote: > > Hey All, > > I've noticed that the Cassandra instance I have running on our build machine > > occasionally crashes with an OOM error during compaction. I'm going to dial > > down the memtable thresholds etc but I was wondering if anyone could help > > explain the heap usage at the time of the crash. I just happened to leave a > > JMX console window open and it's showing that just before the crash roughly > > 50% of the heap was still available. > > Screenshot of heap usage: http://img3.imageshack.us/img3/2822/memoryf.png > > The above screenshot was taken a few weeks ago on Cassandra 0.7.2 (I think) > > with nmap disabled on Java 1.6.0_24-b07. I'm now running 0.7.4 with nmap > > enabled and just got the same crash (based on the error message in the > > log)... > > Log snippet from crash that matches screenshot: http://pastebin.com/ACa8fKUu > > Log snippet from 0.7.4 crash: http://pastebin.com/SwSQawUM > > Cheers, > > -- > > Dan Washusen > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of DataStax, the source for professional Cassandra support > http://www.datastax.com >
