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https://issues.apache.org/jira/browse/CASSANDRA-4761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13469460#comment-13469460
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Jonathan Ellis commented on CASSANDRA-4761:
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I don't think they are very similar. 4047 is about "how can I hint an entire
sstable," and this is about "how can I optimize hint delivery over the WAN."
Personally I don't think you'd be well-served by writing out sstables locally
for hints and streaming them over. Easier and more effective to make hint
delivery asynchronous -- instead of waiting for each hint to be acked before
sending another, send hints continuously (until throttled) and create callbacks
to delete successfully delivered ones.
> Batch hints delivery
> --------------------
>
> Key: CASSANDRA-4761
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4761
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.1.2
> Reporter: Alexey Zotov
> Assignee: Alexey Zotov
> Labels: hintedhandoff
>
> Hints delivery to remote DC can take a long time (currently we have 70 ms for
> each hint). In our estimates 700 MB of data (stored hints) will be
> transmitting to remote DC more than one day (in our case), it's unacceptable
> for us. We suggest to enter hints delivery using batch operations.
> What do you think about it? Is there some facts that won't allow to implement
> that mechanism?
> I'll try to implement it if you approve and clarify right way.
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