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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4449) LoadIncrementalHFiles can't handle CFs with blooms
Date Thu, 22 Sep 2011 04:32:26 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13112318#comment-13112318

Ted Yu commented on HBASE-4449:

HBASE_4449-v2.patch is integrated to 0.90 branch.

Waiting for feedback on patch for TRUNK.

Thanks for the patch David.

> LoadIncrementalHFiles can't handle CFs with blooms
> --------------------------------------------------
>                 Key: HBASE-4449
>                 URL: https://issues.apache.org/jira/browse/HBASE-4449
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.90.4
>            Reporter: David Revell
>            Assignee: David Revell
>             Fix For: 0.90.5
>         Attachments: HBASE-4449-trunk-testsonly.patch, HBASE-4449-v2.patch, HBASE-4449.patch
> When LoadIncrementalHFiles loads a store file that crosses region boundaries, it will
split the file at the boundary to create two store files. If the store file is for a column
family that has a bloom filter, then a "java.lang.ArithmeticException: / by zero" will be
raised because ByteBloomFilter() is called with maxKeys of 0.
> The included patch assumes that the number of keys in each split child will be equal
to the number of keys in the parent's bloom filter (instead of 0). This is an overestimate,
but it's safe and easy.

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