[ https://issues.apache.org/jira/browse/HDFS-2861?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-2861:
------------------------------
Attachment: hdfs-2861.txt
Attached patch does the following:
- cleaned up the error messages when configuration isn't properly set up
- improved the code so that, if the dfs.http.address is set to 0.0.0.0, that it uses the hostname
from the RPC address instead (to match the secondary namenode)
- added a sanity check that the IP address stored in the member variable is not 0.0.0.0.
> 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
>
>
> 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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