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  1. Core Server
  2. SERVER-80427

Avoid change streams latency caused by lack of writes on a shard

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    • Query Execution

    Description

      In a sharded cluster, to guarantee total ordering of events, change stream checks for events on all shards. This constrains latency of the events in change stream by the largest latency between writes on any individual shard.

      Default for periodicNoopIntervalSecs is 10s, so in the worst case when one of the shards doesn't receive any writes, the latency will be around that.

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            backlog-query-execution Backlog - Query Execution
            kateryna.kamenieva@mongodb.com Katya Kamenieva
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              Updated: