[HBASE-7404] Bucket Cache:A solution about CMS,Heap Fragment and Big Cache on HBASE - ASF JIRA

BucketCache is another implementation of BlockCache which supports big block cache for high performance and would greatly decrease CMS and heap fragmentation in JVM caused by read activities. Usage: 1.Use bucket cache as main memory cache, configured as the following: –"hbase.bucketcache.ioengine" "heap" –"hbase.bucketcache.size" 0.4 (size for bucket cache, 0.4 is a percentage of max heap size) 2.

[shiumachi]

今日の話と全然関係ないけど、HBaseのメモリキャッシュにFusion-io のような速いストレージを使えるようにするパッチ