1. The jstack result is attached.
2. These are the two processes:
25050 shayan 20 0 1643M 87872 2512 S 100. 10.11434h
/usr/lib/jvm/java-1.6.0//bin/java -Dproc_datanode -Xmx1000m
-Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/shayan/hadoop/logs
-Dhadoo
25094 shayan 20 0 1643
Hi Shayan,
If you restart one of the datanodes, does that node go back to normal cpu
usage? if so that looks like the same issue im seeing on my nodes, though mine
will go to 200% over time on a 4 cpu host.
I havent been able to track the cause down yet. Heavy use of HDFS will cause
the node t
Can you pastebin data node log snippet and jstack of datanode process ?
Thanks
On Tue, Jun 3, 2014 at 9:34 AM, Shayan Pooya wrote:
> I have a three node HDFS cluster with a name-node. There is absolutely no
> IO going on this cluster or any jobs running on it and I just use it for
> testing t
I have a three node HDFS cluster with a name-node. There is absolutely no
IO going on this cluster or any jobs running on it and I just use it for
testing the Disco HDFS integration.
I noticed that two of the three data-nodes are using 100% CPU. They have
been running for a long time (2 months) b
