I posted about this here<br />
<br />
<a href="http://serverfault.com/questions/640248/ps-aux-hanging-on-high-cpu-io-with-java-processes">http://serverfault.com/questions/640248/ps-aux-hanging-on-high-cpu-io-with-java-processes</a> [<a href="http://serverfault.com/questions/640248/ps-aux-hanging-on-high-cpu-io-with-java-processes" target="_blank">^</a>]<br />
<br />
We run a hadoop cluster on centos 6 and when we get too many mapreduce jobs the process tree will hang until a bunch of the jobs finish. <br />
<br />
I was able to fix this problem by installing the 3.10 series kernel from the centosplus repo but that introduced another problem with a high percentage of interupts causing the cpu to waste time on them. <br />
<br />
I'm not even able to run perf top while this is happening as that hangs also.
↧
