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https://issues.apache.org/jira/browse/HDFS-2861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13198331#comment-13198331
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Aaron T. Myers commented on HDFS-2861:
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Patch looks mostly good, Todd. One small comment:
# testCheckpointerValidityChecks - you should add a fail() if the
StandbyCheckpointer doesn't throw an exception. As it is, the test could
provide a false positive.
+1 once this is addressed.
> HA: checkpointing should verify that the dfs.http.address has been configured
> to a non-loopback for peer NN
> -----------------------------------------------------------------------------------------------------------
>
> Key: HDFS-2861
> URL: https://issues.apache.org/jira/browse/HDFS-2861
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
> Attachments: hdfs-2861.txt, hdfs-2861.txt
>
>
> In an HA setup I was running for the past week, I just noticed that
> checkpoints weren't getting properly uploaded, since the SBN was connecting
> to http://0.0.0.0:50070/ rather than the correct dfs.http.address. So, it was
> uploading checkpoints to itself instead of the peer. We should add sanity
> checks during startup to ensure that the configuration is correct.
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