[Orca-users] Out of memory during request for 1016 byteserror

[Blair Zajac]

Sean O'Neill wrote:
> 
> At 03:55 PM 12/19/2002 -0500, Michael O'Dea wrote:
> 
> > > and now it doesnt seem to be writing anything useful. When the was the
> > default
> > > of 4096 file descriptors the machine crawled to a halt and used 100% swap &
> > > othber processes started crapping out.
> > >
> > > Also, the system shows about 75 bzip processes and 430 defunct
> > processes under orca!
> 
> Something to remember is if your Orca graphs are a good bit behind the RRD
> files and your RRD files are behind your text data files, you can expect
> some number of *zip program to be running uncompressing your data.  Just do
> the math:  off by 3 days let's say and 30 machines is a bunch of *zip
> processes all chewing up large amounts of your memory.  During this
> "uncompress" stage, Orca and easily grow to well over 100 Mbytes.  A
> smaller memory profile machines that could possibly explain your swap activity.
> 
> I have a U5 running Orca for about 40 machines.  When I have the
> unfortunately event of Orca going down and I can't get it for whatever
> reason for a day or two, it takes literally hours for Orca to catch back up
> with reality primarily because of the unzip processing required.  The
> memory on this system gets hits really hard during this time and that's
> with 512MB of memory.

I'm beginning to think about performance optimizations for Orca.  I'll
put together an email asking people to send in profile information on
where Orca is spending most of its time.

Best,
Blair

-- 
Blair Zajac <blair at orcaware.com>
Plots of your system's performance - http://www.orcaware.com/orca/