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https://issues.apache.org/jira/browse/HDFS-12979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16854937#comment-16854937
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Erik Krogen commented on HDFS-12979:
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Hey [~vagarychen], the new test case LGTM, although you need to shut down the
{{MiniDFSCluster}} (and {{secondary}} ?) in your {{finally}} block. It looks
like you also left a {{System.err.println()}} lying around.
I'm still not a big fan of a static variable, but if there is no other good
approach then okay. Ping [~shv] to see if he has any better ideas; I know
Konstantin has had feelings about similar things in the past. Assuming we leave
it in place, should we be resetting the static value in the {{shutdown}} of the
mini-cluster, similar to how you reset it in the finally block of the test?
> StandbyNode should upload FsImage to ObserverNode after checkpointing.
> ----------------------------------------------------------------------
>
> Key: HDFS-12979
> URL: https://issues.apache.org/jira/browse/HDFS-12979
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Konstantin Shvachko
> Assignee: Chen Liang
> Priority: Major
> Attachments: HDFS-12979.001.patch, HDFS-12979.002.patch,
> HDFS-12979.003.patch, HDFS-12979.004.patch, HDFS-12979.005.patch,
> HDFS-12979.006.patch, HDFS-12979.007.patch, HDFS-12979.008.patch,
> HDFS-12979.009.patch, HDFS-12979.010.patch
>
>
> ObserverNode does not create checkpoints. So it's fsimage file can get very
> old making bootstrap of ObserverNode too long. A StandbyNode should copy
> latest fsimage to ObserverNode(s) along with ANN.
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