Hi,
I very recently upgraded from puppet 0.25.4 to 2.6.8 (both master and
all nodes), and I''m now facing serious memory usage issues. On the
master, I just added more RAM because I had the resources available
(from 2GB to 4GB). But on some nodes with 256MB of RAM, I now see some
load peaks and services being affected by high I/O caused by swapping.
My manifests haven''t changed, only minor compatibility changes, so the
catalogs are performing the same.
I do see two major differences :
* Update from 0.25.4 to 2.6.8
* Enabled ''report'' to start using Dashboard (on a separate
server)
A quick testing reveals that puppet 2.6.8 on the client nodes does use
up more memory than 0.25.4 did. Where is remember seeing 40-50MB of
resident memory used (from the top of my head), I now see 80-90MB for
the same kind of node. Then with reports enabled this goes up to
110-120MB.
I already went hunting down useless or non optimized parts of the
catalogs, but apart from 2 nodes were I found "recurse => true" and
fixed it (using a different approach, these were nodes other than the
one for which I mention the memory usage and had puppetd at 300MB+), I
don''t see anything more I could optimize, and I have looked in detail,
even analyzing a few dot files (the --graph option is really useful!).
Two questions :
1) Is it normal that memory usage of puppetd is so much higher just for
having the ''report'' option enabled?
2) What can I do for low-memory nodes other than switching from puppetd
to running puppet from a cron job? (which would help somewhat, but not
fix the underlying issues)
Any pointers are welcome :-)
Matthias
--
Clean custom Red Hat Linux rpm packages : http://freshrpms.net/
Fedora release 14 (Laughlin) - Linux kernel 2.6.35.13-91.fc14.x86_64
Load : 0.29 0.27 0.28
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