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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-686) MemcacheScanner didn't return the first row(if it exists), cause HScannerInterface's output incorrect
Date Tue, 17 Jun 2008 17:15:45 GMT

     [ https://issues.apache.org/jira/browse/HBASE-686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jim Kellerman updated HBASE-686:
--------------------------------

    Fix Version/s: 0.1.3

> MemcacheScanner didn't return the first row(if it exists), cause HScannerInterface's
output incorrect
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-686
>                 URL: https://issues.apache.org/jira/browse/HBASE-686
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.1.2
>            Reporter: LN
>            Assignee: Jim Kellerman
>             Fix For: 0.1.3
>
>         Attachments: HBASE-686.patch, HBASE_686.java, HBASE_686.java, scanner-test-for.ver.0.2.0.dev.jar.jar,
TestHMemcache.java
>
>
> HTable.obtainScanner methods should return the start row if it exists, although HTable's
javadoc didn't clearly desc. but i found the result of htable scanners sometimes contain the
start row, sometimes not.
> after more testing and code review, i found it should be a bug in HStore.Memcache.MemcacheScanner.
in the constructor it set this.currentRow = firstRow, but when doing next(), there's a this.currentRow
= getNextRow(this.currentRow) before fetch result.

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