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https://issues.apache.org/jira/browse/HBASE-15480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15219987#comment-15219987
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Walter Koetke commented on HBASE-15480:
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To answer Ted's question about the performance improvement, see the attachment
BloomFilterCheckOneByOne, screenshot about how much time was going here. All of
this went away for us with the change in place.
> Bloom Filter check needs to be more efficient for array
> -------------------------------------------------------
>
> Key: HBASE-15480
> URL: https://issues.apache.org/jira/browse/HBASE-15480
> Project: HBase
> Issue Type: Improvement
> Components: Performance
> Affects Versions: 1.0.3
> Reporter: Walter Koetke
> Assignee: Walter Koetke
> Fix For: 1.0.4
>
> Attachments: BloomFilterCheckOneByOne.tiff,
> HBASE-15480-branch-1.0.patch
>
>
> It is currently inefficient to do lots of bloom filter checks. Each check has
> overhead like going to the block cache to retrieve the block and recording
> metrics. It would be good to have one bloom filter check api that does a
> bunch of checks without so much block retrieval and metrics updates.
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