Palmer, Andrew MMI Woking wrote:
I am looking at changing the value BufferedIndexOutput.BUFFER_SIZE from
1024 to maybe 8192. Has anyone done anything similar and did they get
any performance improvements.
I doubt this will speed things much.
Generally I am looking to reduce the time it takes to optimize the
index, currently a 20GB index takes about an hour. I have at least four
indexes of this size and they are all in the critical path for the
production cycle.
A RAID device with higher i/o throughput might help.
Or perhaps you can just optimize the index less often. Instead use a
very small merge factor (i.e., 2) to minimize the number of segments.
This will make searches faster. Increase minMergeDocs to 1000 or so to
keep updates fast.
Doug
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