there are 3 conditions that will trigger an auto flushing in lucene 1. size of index in ram is larger than ram buffer size 2. documents in mamory is larger than the number set by setMaxBufferedDocs. 3. deleted term number is larger than the ratio set by setMaxBufferedDeleteTerms.
auto flushing by time interval is added by solr rambufferSize will use estimated size and the real used memory may be larger than this value. So if your Xmx is 2700m, setRAMBufferSizeMB. should set value less than it. if you setRAMBufferSizeMB to 2700m and the other 3 conditions are not triggered, I think it will hit OOM exception. 2011/3/28 Isan Fulia <isan.fu...@germinait.com>: > Hi all , > > I would like to know is there any relation between autocommit and > rambuffersize. > My solr config does not contain rambuffersize which mean its > deault(32mb).Autocommit setting are after 500 docs or 80 sec > whichever is first. > Solr starts with Xmx 2700M .Total Ram is 4 GB. > Does the rambufferSize is alloted outside the heap memory(2700M)? > How does rambuffersize is related to out of memory errors. > What is the optimal value for rambuffersize. > > -- > Thanks & Regards, > Isan Fulia. >
