ramkrishna.s.vasudevan created HBASE-18002:
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Summary: Investigate why bucket cache filling up in file mode in
an exisitng file is slower
Key: HBASE-18002
URL: https://issues.apache.org/jira/browse/HBASE-18002
Project: HBase
Issue Type: Sub-task
Components: BucketCache
Affects Versions: 2.0.0
Reporter: ramkrishna.s.vasudevan
Fix For: 2.0.0
This issue was observed when we recently did some tests with SSD based bucket
cache. Similar thing was also reported by @stack and [~danielpol] while doing
some of these bucket cache related testing.
When we try to preload a bucket cache (in file mode) with a new file the bucket
cache fills up quite faster and there not much 'failedBlockAdditions'. But when
the same bucket cache is filled up with a preexisitng file ( that had already
some entries filled up) this time it has more 'failedBlockAdditions' and the
cache does not fill up faster. Investigate why this happens.
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