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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1628) NPE on deep copied dumped memory iterator
Date Wed, 19 Nov 2014 17:05:34 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14218147#comment-14218147
] 

Josh Elser commented on ACCUMULO-1628:
--------------------------------------

[~vines] since this issue did get released in 1.5.2 and 1.6.1, can we open up a new issue
to track things and link it to this one? I don't want the fact that a change did make it into
those released version get lost because it happened to be a partial fix.

> NPE on deep copied dumped memory iterator
> -----------------------------------------
>
>                 Key: ACCUMULO-1628
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1628
>             Project: Accumulo
>          Issue Type: Bug
>    Affects Versions: 1.4.0, 1.5.0
>            Reporter: Keith Turner
>            Assignee: Keith Turner
>            Priority: Blocker
>             Fix For: 1.5.2, 1.6.1, 1.7.0
>
>         Attachments: ACCUMULO-1628-1.5.2-SNAPSHOT-1.patch, ACCUMULO-1628-1.5.2-SNAPSHOT-2.patch,
ACCUMULO-1628-1.5.2-SNAPSHOT-3.patch, ACCUMULO-1628-1.patch, ACCUMULO-1628-SET_INTR.patch,
bpopp-ACCUMULO-1628.log
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Accumulo may dump memory while a scan is running and transparently switch iterators from
memory to file.  If an iterator calls deepcopy after this happens, then seek will fail on
the deep copy.
> {noformat}
> java.lang.NullPointerException
> 	at org.apache.accumulo.server.tabletserver.InMemoryMap$MemoryDataSource.iterator(InMemoryMap.java:349)
> 	at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:163)
> {noformat}



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