[SERVER-45085] Check Config Replication condition on reconfig Created: 12/Dec/19  Updated: 29/Oct/23  Resolved: 28/Feb/20

Status: Closed
Project: Core Server
Component/s: Replication
Affects Version/s: None
Fix Version/s: 4.3.4

Type: Task Priority: Major - P3
Reporter: Siyuan Zhou Assignee: Pavithra Vetriselvan
Resolution: Fixed Votes: 0
Labels: safe-reconfig-cmd
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
is depended on by SERVER-45091 Support arbiters on safe reconfig and... Closed
Documented
is documented by DOCS-13600 Investigate changes in SERVER-45085: ... Closed
Related
is related to SERVER-45093 Wait for the config document to be du... Closed
Backwards Compatibility: Fully Compatible
Sprint: Repl 2020-01-27, Repl 2020-02-10, Repl 2020-02-24, Repl 2020-03-09
Participants:

 Description   

Config Replication condition checks the config C_i is replicated to a majority of data-bearing voting nodes in C_i in the primary’s term.

Config Replication condition check in reconfig step 1 checks the config terms and version received via heartbeats in memberData. Waiting for _Config Replication in step 4 can either run Config Replication condition check with a ScatterGatherRunner in a loop or let replication coordinator signal it on receiving heartbeat responses.



 Comments   
Comment by Githook User [ 27/Feb/20 ]

Author:

{'name': 'Pavithra Vetriselvan', 'username': 'pvselvan', 'email': 'pavithra.vetriselvan@mongodb.com'}

Message: SERVER-45085 add config term and version to error message
Branch: master
https://github.com/mongodb/mongo/commit/20c346467124fe768acab1c319c9096d7aea637f

Comment by Githook User [ 27/Feb/20 ]

Author:

{'username': 'pvselvan', 'name': 'Pavithra Vetriselvan', 'email': 'pavithra.vetriselvan@mongodb.com'}

Message: SERVER-45085 re-enable config quorum checker
Branch: master
https://github.com/mongodb/mongo/commit/9286617bbc5f9087f3774fc7d4dd4d366c584ae2

Comment by Pavithra Vetriselvan [ 27/Feb/20 ]

Code review url: https://mongodbcr.appspot.com/579930001/

Comment by Githook User [ 25/Feb/20 ]

Author:

{'name': 'Pavithra Vetriselvan', 'username': 'pvselvan', 'email': 'pavithra.vetriselvan@mongodb.com'}

Message: SERVER-45085 check config replication condition on reconfig
Branch: master
https://github.com/mongodb/mongo/commit/d68c538f0d1dadbe1f65bb503ebae21ef74cf58d

Comment by Githook User [ 24/Feb/20 ]

Author:

{'name': 'Pavithra Vetriselvan', 'username': 'pvselvan', 'email': 'pavithra.vetriselvan@mongodb.com'}

Message: SERVER-45085 gate configTerm addition from topCoord with FCV
Branch: master
https://github.com/mongodb/mongo/commit/1cb6ac41648ab8bcc926a1dae6345a01c735ee52

Comment by Siyuan Zhou [ 16/Dec/19 ]

As daniel.hatcher suggested, we need to return the detailed reasons when a safe reconfig fails.

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