Increase the aggressiveness of balancing config.system.sessions

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    • Type: Improvement
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: 8.0.4
    • Component/s: Sharding
    • Cluster Scalability
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    • 3
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      A certain customer encountered increased write latency on one shard due to resource contention on the shard that held the entire config.system.sessions collection in a multi-shard cluster. 

      We should reduce the migration threshold to balance the config.system.sessions collection more aggressively so that it is distributed across multiple shards in a multi-shard cluster earlier. 

            Assignee:
            Unassigned
            Reporter:
            Matt Panton
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              Created:
              Updated: