[
https://issues.apache.org/jira/browse/HDFS-839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12801976#action_12801976
]
Todd Lipcon commented on HDFS-839:
----------------------------------
I see your point about additional memory pressure for queueing up the messages
to be sent.
I think to resolve this issue we should lay out what consistency and
reliability we need. Specifically, are lost block reports OK? If so, then the
all-through-the-NN solution can simply start dropping if the queue hits some
memory threshold, right?
> The NameNode should forward block reports to BackupNode
> -------------------------------------------------------
>
> Key: HDFS-839
> URL: https://issues.apache.org/jira/browse/HDFS-839
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: name-node
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
>
> The BackupNode (via HADOOP-4539) receives a stream of transactions from
> NameNode. However, the BackupNode does not have block locations of blocks. It
> would be nice if the NameNode can forward all block reports (that it receives
> from DataNodes) to the BackupNode.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
