Debugging / nuked objects spike
sky at crucially.net
Thu Apr 2 02:51:31 CEST 2009
On Apr 1, 2009, at 4:11 PM, Cloude Porteus wrote:
> I just noticed that the number of documents in the cache dropped from
> ~140k -> ~30k and the LRU Nuked Objects increased by 100k. I assume
> we're hitting our storage limit, which is currently set to 10gb. We
> had it set at 50gb before, but we were still having similar problems.
> I noticed last night there was a couple of hours where it looked like
> the hit ratio was close to zero, but then it went back to normal.
> Any ideas what would cause Varnish to nuke ~100k objects all at once?
> I've gone over all the performance tuning info and we've tried to
> implement most of the suggestions. I'm just not sure which direction
> to start tuning further.
There are problems with the fragmentation of the store. Try using
malloc and see if the problem goes away. (We see this regularly)
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