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https://issues.apache.org/jira/browse/HDFS-2291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158060#comment-13158060
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Eli Collins commented on HDFS-2291:
-----------------------------------
Agree that the SBN should be able to do checkpoints - someone running a typical
20x configuration with two hosts (NN and 2NN) should be able to keep the same
hardware config (NN and SBN).
> HA: Checkpointing in an HA setup
> --------------------------------
>
> Key: HDFS-2291
> URL: https://issues.apache.org/jira/browse/HDFS-2291
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Aaron T. Myers
> Assignee: Todd Lipcon
> Fix For: HA branch (HDFS-1623)
>
>
> We obviously need to create checkpoints when HA is enabled. One thought is to
> use a third, dedicated checkpointing node in addition to the active and
> standby nodes. Another option would be to make the standby capable of also
> performing the function of checkpointing.
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