hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Kevin <kevin.macksa...@gmail.com>
Subject Clear Block Cache
Date Thu, 14 Jun 2012 17:39:50 GMT

I would like to get timing results for some large, rare scans, but each
reading test keeps performing better because of the heap's LRU block cache.
Is there a way (possibly through the API) that I can clear the block cache
to get timing results that mimic cold read times? I tried
HTable.clearRegionCache() but that didn't seem to do anything in terms of
making the scans taking longer.


  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message