Re: [Gluster-devel] Excessive memory usage with 1.3.12

[Lukas Hejtmanek]

On Sat, Nov 08, 2008 at 01:01:08AM +0530, Krishna Srinivas wrote:
> Are you sure that its a leak of io-cache? did you try by removing the
> translator and not observe the leak?

yes, omitting io-cache from configuration works OK, no leaks.

> What made you conclude that cache-size option was being ignored? It
> could be a memory leak by io-cache at some other place too.

I probed maps of glusterfs when leaks occur, bonnie++ created 8 files each
having 1GB size. maps shown that four of them were mmaped. So I guess it tries
to cache as much as possible on x86_64.

> I tried to make io-cache memleak, but its not happening, what
> operations do you guys do to see the leak? can you see if some simple
> test case makes it leak? (so that it will be easy for me to reproduce
> the bug here and fix it)

I can provide either core of leaked process or steps how to reproduce.

I have 3 servers. Config one of them is attached, configs are symmetrical.

I use bonnie++ benchmark to test the file system:
bonnie++ -d /mnt/gluster -u 0:0

the first run of bonnie is usually ok. the second fails on memleaks. It's
important to use 64bit system.

-- 
Lukáš Hejtmánek

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