Re: OSD memory leaks?

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Hi all,

I finally got a core dump.

I did it with a kill -SEGV on the OSD process.

https://www.dropbox.com/s/ahv6hm0ipnak5rf/core-ceph-osd-11-0-0-20100-1361539008

Hope we will get something out of it :-).
--
Regards,
Sébastien Han.


On Fri, Jan 11, 2013 at 7:13 PM, Gregory Farnum <greg@xxxxxxxxxxx> wrote:
> On Fri, Jan 11, 2013 at 6:57 AM, Sébastien Han <han.sebastien@xxxxxxxxx> wrote:
>>> Is osd.1 using the heap profiler as well? Keep in mind that active use
>>> of the memory profiler will itself cause memory usage to increase —
>>> this sounds a bit like that to me since it's staying stable at a large
>>> but finite portion of total memory.
>>
>> Well, the memory consumption was already high before the profiler was
>> started. So yes with the memory profiler enable an OSD might consume
>> more memory but this doesn't cause the memory leaks.
>
> My concern is that maybe you saw a leak but when you restarted with
> the memory profiling you lost whatever conditions caused it.
>
>> Any ideas? Nothing to say about my scrumbing theory?
> I like it, but Sam indicates that without some heap dumps which
> capture the actual leak then scrub is too large to effectively code
> review for leaks. :(
> -Greg
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