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  1. Core Server
  2. SERVER-32075

Load sharding metadata from disk on mongod startup

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major - P3
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: Backlog
    • Component/s: Sharding
    • Labels:
      None
    • Operating System:
      ALL

      Description

      Starting in 3.6, when a shard mongod loads the chunk metadata for a sharded collection, it records that metadata durably. If the mongod restarts, however, the in-memory cache of that information is lost and isn't loaded until a metadata refresh is triggered via a request from a mongos. Shard mongods should load the routing information from its persistent local copy into memory at startup.

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                Dates

                • Created:
                  Updated: