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https://issues.apache.org/jira/browse/CASSANDRA-14309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-14309:
-----------------------------------------
Labels: 4.0-feature-freeze-review-requested (was: )
> Make hint window persistent across restarts
> -------------------------------------------
>
> Key: CASSANDRA-14309
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14309
> Project: Cassandra
> Issue Type: Improvement
> Components: Hints
> Reporter: Kurt Greaves
> Assignee: Kurt Greaves
> Priority: Minor
> Labels: 4.0-feature-freeze-review-requested
> Fix For: 4.x
>
>
> The current hint system stores a window of hints as defined by
> {{max_hint_window_in_ms}}, however this window is not persistent across
> restarts.
> Examples (cluster with RF=3 and 3 nodes, A, B, and C):
> # A goes down
> # X ms of hints are stored for A on B and C
> # A is restarted
> # A goes down again without hints replaying from B and C
> # B and C will store up to another {{max_hint_window_in_ms}} of hints for A
>
> # A goes down
> # X ms of hints are stored for A on B and C
> # B is restarted
> # B will store up to another {{max_hint_window_in_ms}} of hints for A
>
> Note that in both these scenarios they can continue forever. If A or B keeps
> getting restarted hints will continue to pile up.
>
> Idea of this ticket is to stop this behaviour from happening and only ever
> store up to {{max_hint_window_in_ms}} of hints for a particular node.
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