Hi,
I've used Solr a little at work where we have our own hardware with all
the memory we want. However, I would also like to use Solr on a
small-ish website that I run off of a VPS with 512MB of RAM. I tried
this (untuned) for a while, and Tomcat/Solr would just grab up all my
memory until the server slowed to a crawl.
Performance really isn't a huge factor. There are probably around 5000
documents with an average size of 1-2k per document. A document (wiki
page) is re-indexed roughly every time it is saved, and with our
current traffic, that's probably around 5/minute at our busiest times.
Plus, the search feature isn't all that prominent, meaning that actual
searches occur fairly rarely, perhaps 1/minute at peak.
So, my basic question is: Can I constrain and constrict Solr in order
to run it in a tiny slice of memory, say 64-128MB? What will happen if
I set the -xmx option to 64M? I saw some other posts about OutOfMemory
errors, but I couldn't get a clear idea about how well Solr recovered
from them.
Also, is there a way to turn off (or severely limit) caching and
buffering? What happens if I set maxBufferedDocs to 1 or 10? Can I go
through and set the filter, query, and document caches to some small
number like 1 or 10?
Finally, am I trying to do something that's just plain stupid? I like
Solr and I'd like to try some neat stuff with facets on my site, but
Sphinx ( http://www.sphinxsearch.com/ ) is another option that I know
people have gotten to work with a small memory footprint. I just don't
know Sphinx that well.
Thanks in advance,
Micah
- Solr in a highly memory constrained environment (ie. VPS) ... Micah Wedemeyer
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