Re: Write performance with 1.2.12

2013-12-06 Thread Vicky Kak
er >> MBeans tab, start inspecting the GC metrics. >> >> /Jason >> >> >> On Fri, Dec 6, 2013 at 11:40 PM, srmore wrote: >> >>> >>> >>> >>> On Fri, Dec 6, 2013 at 9:32 AM, Vicky Kak wrote: >>> >>>> Hard t

Re: Write performance with 1.2.12

2013-12-06 Thread Vicky Kak
be you have lots of write operations going on. On Fri, Dec 6, 2013 at 10:06 PM, srmore wrote: > > > > On Fri, Dec 6, 2013 at 9:59 AM, Vicky Kak wrote: > >> You have passed the JVM configurations and not the cassandra >> configurations which is in cassandra.yaml. &

Re: Write performance with 1.2.12

2013-12-06 Thread Vicky Kak
wrote: > > > > On Fri, Dec 6, 2013 at 9:32 AM, Vicky Kak wrote: > >> Hard to say much without knowing about the cassandra configurations. >> > > The cassandra configuration is > -Xms8G > -Xmx8G > -Xmn800m > -XX:+UseParNewGC > -XX:+UseConcMarkSweepGC >

Re: Try to configure commitlog_archiving.properties

2013-12-06 Thread Vicky Kak
>>Why, can you give me a good example and the good way to configure archive >>commit logs ? Take a look at the cassandra code ;) On Fri, Dec 6, 2013 at 3:34 PM, Bonnet Jonathan < jonathan.bon...@externe.bnpparibas.com> wrote: > Hello, > > I try to configure commitlog_archiving.properties to t

Re: Write performance with 1.2.12

2013-12-06 Thread Vicky Kak
Hard to say much without knowing about the cassandra configurations. Yes compactions/GC's could skipe the CPU, I had similar behavior with my setup. -VK On Fri, Dec 6, 2013 at 7:40 PM, srmore wrote: > We have a 3 node cluster running cassandra 1.2.12, they are pretty big > machines 64G ram wit

Re: OOMs during high (read?) load in Cassandra 1.2.11

2013-12-06 Thread Vicky Kak
I am not sure if you had got a chance to take a look at this http://www.datastax.com/docs/1.1/troubleshooting/index#oom http://www.datastax.com/docs/1.1/install/recommended_settings Can you attach the cassandra logs and the cassandra.yaml, it should be able to give us more details about the issue?

Re: new project - Under Siege

2013-12-06 Thread Vicky Kak
Out of curiosity with quick look I found you have directory name as com.shift.undersiege https://github.com/StartTheShift/UnderSiege/blob/master/src/main/java/com.shift.undersiege/StatsdReporter.java You should have created the directory structure as src/main/java/com/shift/undersiege/StatsReporte