[SERVER-14102] Implement explain command for mongos Created: 30/May/14  Updated: 02/Aug/18  Resolved: 01/Oct/14

Status: Closed
Project: Core Server
Component/s: Querying, Sharding
Affects Version/s: None
Fix Version/s: 2.7.8

Type: Task Priority: Major - P3
Reporter: Ian Whalen (Inactive) Assignee: David Storch
Resolution: Done Votes: 1
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Duplicate
is duplicated by SERVER-14103 Sharded Explain for Count, Distinct, ... Closed
is duplicated by SERVER-14104 Sharded Explain for Write Commands Closed
Related
related to SERVER-15502 Implement Strategy::commandOpWrite Closed
Participants:

 Description   
Implementation strategy
  • Should do targeting analysis and then forward to the appropriate shards. Need to talk with Greg about how to take advantage of existing targeting.
  • Results get chopped up and reformatted by mongos in order to comply with the sharded explain format in the spec.


 Comments   
Comment by Githook User [ 01/Oct/14 ]

Author:

{u'username': u'dstorch', u'name': u'David Storch', u'email': u'david.storch@10gen.com'}

Message: SERVER-14102 implement the explain command on mongos
Branch: master
https://github.com/mongodb/mongo/commit/2481ccd2e79008bece816a585a9748a6f359784c

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