stop using string for block name in LRU block cache/hfile
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Key: HBASE-2945
URL: https://issues.apache.org/jira/browse/HBASE-2945
Project: HBase
Issue Type: Bug
Affects Versions: 0.89.20100621
Reporter: ryan rawson
all my profiling runs indicate there is a large number of string/char[] objects
and string manipulation is taking a long time in profiling runs. These come
from the LRU block cache, block id. Also we should support the eviction of
blocks belonging to particular hfiles, and the current code doesn't help with
that right now.
Let's do something better. Whatever that might be.
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