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From "Walter Koetke (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15480) Bloom Filter check needs to be more efficient for array
Date Thu, 31 Mar 2016 15:01:25 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Walter Koetke updated HBASE-15480:
----------------------------------
    Attachment: BloomFilterCheckOneByOne.tiff

illustration of poor performance before change

> 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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