Re: Weird GC

2014-01-31 Thread Benedict Elliott Smith
>> >> -XX:+PrintSafepointStatistics -XX:PrintSafepointStatisticsCount=1 >> >> >> On 29 January 2014 16:23, Joel Samuelsson wrote: >> >>> Hi, >>> >>> We've been trying to figure out why we have so long and frequent >>> st

Re: Weird GC

2014-01-31 Thread Joel Samuelsson
; > -XX:+PrintSafepointStatistics -XX:PrintSafepointStatisticsCount=1 > > > On 29 January 2014 16:23, Joel Samuelsson wrote: > >> Hi, >> >> We've been trying to figure out why we have so long and frequent >> stop-the-world GC even though we have basically

Re: Weird GC

2014-01-29 Thread Benedict Elliott Smith
though we have basically no load. > > Today we got a log of a weird GC that I wonder if you have any theories of > why it might have happened. > > A plot of our heap at the time, paired with the GC time from the Cassandra > log: > http://imgur.com/vw5rOzj > -The blue line is th

Weird GC

2014-01-29 Thread Joel Samuelsson
Hi, We've been trying to figure out why we have so long and frequent stop-the-world GC even though we have basically no load. Today we got a log of a weird GC that I wonder if you have any theories of why it might have happened. A plot of our heap at the time, paired with the GC time fro