The RM page will show the combined container memory usage. If you have
a significant difference between any or all of
1) actual process memory usage
2) JVM heap size
3) container maximum
then you will have significant memory underutilization.
-Ray
On 20160813 6:31 AM, Suresh V wrote:
Hello,
In our cluster when a MR job is running, in the 'Nodes of the cluster'
page, it shows the memory used as 84GB out of 87GB allocated to yarn
nodemanagers.
However when I actually do a top or free command while logged in to
the node, it shows as only 23GB used and about 95GB or more free.
I would imagine the memory used displayed in the Yarn web UI should
match the memory used shown by top or free command on the node.
Please advise if this is right thinking or am I missing something?
Thank you
Suresh.
