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Type: Improvement
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Resolution: Done
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Priority: Major - P3
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Affects Version/s: None
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Component/s: Replication
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Minor Change
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Repl 2016-11-21
Currently in pv1 we call for priority takeover without concern for whether the higher priority node is caught up in replication, which can lead to unnecessary rollbacks of w:1 writes. If we avoid calling for an election due to priority takeover if we are more than X seconds repl lagged, then that in combination with the catchup period should prevent any writes from being lost during priority takeover.
- is related to
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SERVER-26725 Automatically reconfig pv1 replica sets using priorities or arbiters to pv0
- Closed
- related to
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SERVER-27056 Don't enforce data freshness for step-up command
- Closed