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Absent Member.

Sentinel HEAP Memory dump - hprof file


I'm having issues where the HEAP memory is filling and system crashing.
Could be linked to speed at which its writing to disk (attached to SAN)
but need to take a .hprof dump.

What is the quickest way of doing this please? I could use JVisualVM on
another Windows machine - its connecting on 1099 port to Sentinel server
however I'm unable to add a JMX connection to take the dump!!

I was hoping that Sentinel has the tools to create a dump (.hprof file)
built in - need some help to find that out please...


P.S. Sentinel version 7.1.2

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Absent Member.
Absent Member.

Re: Sentinel HEAP Memory dump - hprof file

I guess your system is not generating the .hprof files automatically when
it crashes? You should be able to add a matching JDK to the system and
then perform the tasks necessary to connect to the system, but it would
probably be worthwhile to do a few other simpler things first.

1. Patch the system. 7.1 SP2 is a bit older than 7.2 SP1, and the latter
fixes issues that could be related to what you're seeing.

2. Check log files for statistics information on what is busy enough to
perhaps cause this. OS information should also be able to steer you one
way or another, such as by seeing contention on the NIC, or disk, or
processor, or RAM. If there is some, then focus on the bottleneck first,
since it will likely be faster to do that, certainly will be
less-intrusive, and will focus on the real problem.

3. Maybe give a bit more history about the system.... number of event
sources, events per second coming in, use of features like
searching/reporting/Security Intelligence/Data Synchronization/etc.

Good luck.

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