On 19-Jan-09, at 2:44 PM, James Brady wrote:
Hi all, I have 20 indices, each ~10GB in size, being searched by a
single
Solr slave instance (using the multicore features in a slightly old
1.2 dev
build)
I'm getting unpredictable, but inevitable, OutOfMemoryError from the
slave,
and I have no more physical memory to throw at the problem (HotSpot
1.6 with
Xmx=4000m). At this point, I'd like to see how much memory Lucene is
eating
by disabling all supplemental Solr caches.
Which solrconfig settings do I need to be paying attention to
here? filterCache, queryResultCache and documentCache?
That should be it. Note that it is unadvisable to reduce
documentCache size to less than 100 or so, as Solr assumes that enough
cache for the docs for one query.
A heap dump should help point you in to the relevant problems. Also,
it should be easy to get a rough estimate of the filtercache mem usage
by looking at its size.
-Mike
