chenxu14 commented on issue #479: HBASE-22802 Avoid temp ByteBuffer allocation in FileIOEngine#read URL: https://github.com/apache/hbase/pull/479#issuecomment-527753461 Can we ignore LRU in this case(BucketCache#freeEntireBuckets), I think HBASE-16630 has already done so. In this way, there is no refCnt sharing between exclusive HFileBlock and BucketEntry, and many temporary object creation(CompositeRefCnt) can be omitted. I can make some changes if you agree. @openinx @anoopsjohn
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