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https://issues.apache.org/jira/browse/HBASE-8388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13640021#comment-13640021
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Lars Hofhansl commented on HBASE-8388:
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In case anybody picks this up. The problem was that all StoreFileScanner would
have a seek-key of LAST_ON_ROW, and hence the StoreScanner KVHeap, would spin
forever, because of the KV comparison mentioned in my previous comment.
I might pick this up again, but since ROWCOL BFs *do* work, this is not
critical for performance (and I feel changing the semantics to make this work
is quite risky).
> Use ROW bloom filter for scanning
> ---------------------------------
>
> Key: HBASE-8388
> URL: https://issues.apache.org/jira/browse/HBASE-8388
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Attachments: 8388-0.94-sketch.txt, 8388-0.94-v1.txt,
> 8388-trunk-v1.txt, 8388-trunk-v2.txt, 8388-trunk-v3.txt
>
>
> Currently only ROWCOL BFs are used during the scanning process. It seems we
> could make use of ROW BFs in StoreFileScanner.requestSeek.
> See HBASE-8362 for background.
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