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https://issues.apache.org/jira/browse/ACCUMULO-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13783095#comment-13783095
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John Vines commented on ACCUMULO-1568:
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Did the namespace configs get wrapped? I'll work on this, but I don't want to
make merging that code a PITA.
> Make configuration changes Atomic
> ---------------------------------
>
> Key: ACCUMULO-1568
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1568
> Project: Accumulo
> Issue Type: Bug
> Reporter: Keith Turner
> Assignee: John Vines
> Fix For: 1.6.0
>
>
> I have not seen this issue, but its something I thought of. Assume the
> following happens.
> * iterators I1 ... I10 are configured to Table T1 at time 1
> * iterators NI1 ... NI10 are configured to Table T1 at time 2
> * compaction is reading iterator config and reads I1 ... I5 and NI4 ...
> NI9, a combination of the two iterator configurations w/o NI10, this could be
> really bad.
> Seems like this could be solved by use of Zookeeper transactions. The
> Accumulo API will need to change to allow setting many iterators or config
> settings at once.
>
>
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