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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6562) Fake KVs are sometimes passed to filters
Date Thu, 03 Jan 2013 23:46:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6562?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl updated HBASE-6562:
---------------------------------

    Attachment: 6562-0.94-v1.txt

Here's a patch that works correct in all situations.
The downside is that now all StoreScanner need to perform a real disk seek at least once if
there is a filter (and this is not a get scan)

                
> Fake KVs are sometimes passed to filters
> ----------------------------------------
>
>                 Key: HBASE-6562
>                 URL: https://issues.apache.org/jira/browse/HBASE-6562
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>            Priority: Minor
>             Fix For: 0.96.0
>
>         Attachments: 6562-0.94-v1.txt, 6562.txt, 6562-v2.txt, 6562-v3.txt, 6562-v4.txt,
6562-v5.txt, minimalTest.java
>
>
> In internal tests at Salesforce we found that fake row keys sometimes are passed to filters
(Filter.filterRowKey(...) specifically).
> The KVs are eventually filtered by the StoreScanner/ScanQueryMatcher, but the row key
is passed to filterRowKey in RegionScannImpl *before* that happens.

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