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https://issues.apache.org/jira/browse/ACCUMULO-2481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14018054#comment-14018054
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Christopher Tubbs commented on ACCUMULO-2481:
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Duplicate issues should link to the issue they duplicate, and be resolved as a
duplicate, with no fixVersion (the fixVersion and actual resolution should be
the one that was duplicated, the one where the work was actually done).
> Monitor should still work if HDFS + Zookeeper go away
> -----------------------------------------------------
>
> Key: ACCUMULO-2481
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2481
> Project: Accumulo
> Issue Type: Bug
> Components: monitor
> Affects Versions: 1.4.4, 1.4.5, 1.5.1, 1.6.0
> Environment: 1.4.5-SNAPSHOT on CDH4.5.0.
> Non-HA cluster with 2 workers and a single Zookeeper server.
> Reporter: Sean Busbey
> Assignee: Andrew George Wells
> Priority: Minor
> Fix For: 1.5.2, 1.6.1, 1.7.0
>
>
> While preparing to update a test cluster, I accidentally attempted to refresh
> some monitor pages after I had shut down the underlying HDFS and Zookeeper
> services. The page simply hung. I've since tried loading several different
> pages (overview, logs, master view) and all simple hang on the monitor's end.
> If I restart the underlying cluster, the pages resolve like normal.
> I haven't had a chance to see if this happens on later versions, nor figure
> out which missing component matters.
> Expected behavior would be for the monitor to still load, albeit with a bunch
> of alarm bells about everything being off.
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