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https://issues.apache.org/jira/browse/CASSANDRA-4768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13472444#comment-13472444
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Jonathan Ellis commented on CASSANDRA-4768:
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Sorry, I used the wrong terminology. The right fix is not parallel HH with
each thread waiting for cross-dc latency, but asynchronous HH where each thread
continuously sends mutations across the link and marks them successful when
acks arrive later. Latency then becomes basically irrelevant and your
throughput is independent of whether replay is local or over wan.
> Add separate max_hint_window_in_ms option for remote data centers
> -----------------------------------------------------------------
>
> Key: CASSANDRA-4768
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4768
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.1.2
> Reporter: Alexey Zotov
> Assignee: Alexey Zotov
> Priority: Minor
> Labels: configuration, hintedhandoff
> Fix For: 1.1.7
>
> Attachments: cassandra-1.1-4768-remote_hint_window.txt,
> cassandra-1.2-4768-remote_hint_window.txt
>
>
> It would be nice to have possibility to configure hint window size for remote
> dc separately. It will allow to prevent accumulating of big amount of data
> for remote dc and long hints delivery as the result of it.
> I suggest to add max_hint_window_for_remote_dc_in_ms option.
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