Liang Xie created HBASE-9855:
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Summary: evictBlocksByHfileName improvement for bucket cache
Key: HBASE-9855
URL: https://issues.apache.org/jira/browse/HBASE-9855
Project: HBase
Issue Type: Improvement
Components: regionserver
Affects Versions: 0.98.0
Reporter: Liang Xie
Assignee: Liang Xie
Attachments: HBase-9855.txt
In deed, it comes from fb's l2 cache by [~avf]'s nice work, i just did a
simple backport here. It could improve a linear-time search through the whole
cache map into a log-access-time map search.
I did a small bench, showed it brings a bit gc overhead, but considering the
evict on close triggered by frequent compaction activity, seems reasonable?
and i thought bring a "evictOnClose" config into BucketCache ctor and only
put/remove the new index map while evictOnClose is true, seems this value could
be set by each family schema, but BucketCache is a global instance not per each
family, so just ignore it rightnow...
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