I tried getting the histo as you suggested
jmap -histo:live ${PID}
However, it only shows the histo of the live objects
https://gist.github.com/anonymous/669eae8128c9a11f72fcdc1f82270460. Also
the total memory from the histogram shows to be around 5GB. However, if I
look at the total process memory for the java process using the top command
it is more than 30 GB.
On Tue, Mar 13, 2018 at 6:33 PM, Gopal Vijayaraghavan <gop...@apache.org>
wrote:
> > It also shows that the process is consuming more than 30GB. However, it
> is not clear what is causing the process to consume more than 30GB.
>
> The Xmx only applies to the heap size, there's another factor that is
> usually ignored which are the network buffers and compression buffers used
> by Java.
>
> Most of these are only collected on a full GC pause (or OS memory
> pressure, I think).
>
> Try running a jmap -histo:live and see what happens to the extra buffers
> on that list.
>
> Cheers,
> Gopal
>
>
>
