Kurt Greaves created CASSANDRA-14309:
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Summary: 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
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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