[DOCS-11185] db.copyDatabase() et al from 3.4 to 3.6 requires FCV at "3.4" on target Created: 11/Jan/18  Updated: 29/Oct/23  Resolved: 01/Feb/18

Status: Closed
Project: Documentation
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: Spencer Brown Assignee: Kay Kim (Inactive)
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Documented
Participants:
Days since reply: 6 years, 1 week, 6 days ago

 Description   

A 3.6 mongod with FeatureCompatibiityVersion set to "3.6" cannot connect as a client to a 3.4 mongod. A message about wire protocol mismatch is generated.

Server min and max wire version are incompatible (0,5) with client min wire version (6,6)

As a result, the db.copyDatabase(), db.cloneDatabase, and db.cloneCollection methods fail when run on a 3.6 server with FCV "3.6", and sourcing from a 3.4 server. We suggest adding documentation on this point, that these methods require that the target 3.6 server have FCV "3.4".



 Comments   
Comment by Githook User [ 01/Feb/18 ]

Author:

{'email': 'kay.kim@10gen.com', 'name': 'kay', 'username': 'kay-kim'}

Message: DOCS-11185: fcv and copy data operations
Branch: master
https://github.com/mongodb/docs/commit/c7b45dbfd289ed1f7e486dba566dda46a57ce01b

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