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https://issues.apache.org/jira/browse/HDFS-1623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13104271#comment-13104271
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Uma Maheswara Rao G commented on HDFS-1623:
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@Konstantin,
I posted the second scenario in HDFS-1971 before (With out HDFS-1108).
below is the Sanjay's reply.
{quote}
However your scenario is a good one: a standby processing BRs from DNs and
edits from Active NN may get them out of order.
This scenario applies to HDFS-9175 that reads from a shared editsLog file
system and also for Backup NN.
{quote}
Is this is the scenario/similar you are asking?
Please correct me if i understood wrongly.
Thanks
Uma
> High Availability Framework for HDFS NN
> ---------------------------------------
>
> Key: HDFS-1623
> URL: https://issues.apache.org/jira/browse/HDFS-1623
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Sanjay Radia
> Assignee: Sanjay Radia
> Attachments: HDFS-High-Availability.pdf, NameNode HA_v2.pdf, NameNode
> HA_v2_1.pdf, Namenode HA Framework.pdf
>
>
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