[SERVER-13385] relax merge chunk constraints Created: 27/Mar/14  Updated: 27/Sep/16  Resolved: 15/May/14

Status: Closed
Project: Core Server
Component/s: Sharding
Affects Version/s: None
Fix Version/s: 2.7.1

Type: Improvement Priority: Major - P3
Reporter: Greg Studer Assignee: Randolph Tan
Resolution: Done Votes: 0
Labels: cap-ticket-needed
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Duplicate
is duplicated by SERVER-15439 mergeChunk command fails if there isn... Closed
Related
related to DOCS-8877 Update mergeChunks tutorial Closed
is related to DOCS-4317 Update mergeChunks to reflect relaxed... Closed
Tested
Participants:

 Description   

To be paranoid, we limited chunk merging to empty chunks, and only two-at-a-time. We should probably revisit this once merging chunks have had some burn-in time to provide inverse functionality to split chunk (merge multiple).

In particular it's awkward and racy to try and validate that one of the merged chunks has no data.



 Comments   
Comment by Randolph Tan [ 10/Sep/14 ]

To docs: In addition, merging of more than 2 chunks is also now allowed.

Comment by Randolph Tan [ 15/May/14 ]

To docs: merging non empty chunks are now allowed.

Comment by Githook User [ 15/May/14 ]

Author:

{u'username': u'renctan', u'name': u'Randolph Tan', u'email': u'randolph@10gen.com'}

Message: SERVER-13385 relax merge chunk constraints
Branch: master
https://github.com/mongodb/mongo/commit/bc9db9c8183917ffbc743424fb97297e9fa75643

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