[SERVER-25174] Stop sending epoch to mongod on spilt chunk operations Created: 20/Jul/16  Updated: 06/Dec/22  Resolved: 20/Jan/22

Status: Closed
Project: Core Server
Component/s: Sharding
Affects Version/s: None
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: Dianna Hohensee (Inactive) Assignee: [DO NOT USE] Backlog - Sharding EMEA
Resolution: Done Votes: 0
Labels: neweng, sharding-wfbf-day, shardingemea-qw
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
related to SERVER-20742 Stop sending epoch to mongod on move ... Closed
Assigned Teams:
Sharding EMEA
Participants:

 Description   

Now that we're sending the full chunk version, sending the epoch separately is redundant.



 Comments   
Comment by Kaloian Manassiev [ 20/Jan/22 ]

In 5.1 and later, the Balancer sends epoch with a an IGNORED shardVersion, so it is not possible to make the shard reliably extract the collection's epoch from the received shardVersion.

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