[SERVER-16799] Add per-operation locking statistics summary to slow operation log output Created: 09/Jan/15  Updated: 18/Sep/15  Resolved: 11/Feb/15

Status: Closed
Project: Core Server
Component/s: Concurrency, Diagnostics
Affects Version/s: None
Fix Version/s: 3.0.0-rc9, 3.1.0

Type: Improvement Priority: Major - P3
Reporter: J Rassi Assignee: Kaloian Manassiev
Resolution: Done Votes: 5
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
Backwards Compatibility: Fully Compatible
Backport Completed:
Participants:

 Description   

We should restore locking summary statistics of some sort to the slow query log.

Example of 2.6 output (see "locks"):

2015-01-09T18:37:07.163-0500 [conn1] query test.foo planSummary: COLLSCAN ntoreturn:0 ntoskip:0 nscanned:1 nscannedObjects:1 keyUpdates:0 numYields:0 locks(micros) r:65 nreturned:1 reslen:42 0ms

Output as of ~2.8.0-rc5:

2015-01-09T18:40:26.683-0500 I QUERY    [conn1] query test.foo planSummary: COLLSCAN ntoreturn:0 ntoskip:0 nscanned:0 nscannedObjects:1 keyUpdates:0 writeConflicts:0 numYields:0 nreturned:1 reslen:42 0ms

Also need to reenable jstests/core/profile4.js.



 Comments   
Comment by Githook User [ 11/Feb/15 ]

Author:

{u'username': u'kaloianm', u'name': u'Kaloian Manassiev', u'email': u'kaloian.manassiev@mongodb.com'}

Message: SERVER-16799 Report locking stats in the slow query log

(cherry picked from commit a4ed524990f23821df57fbd4c8aafbcff574823e)
Branch: v3.0
https://github.com/mongodb/mongo/commit/dfccaaff651d1ba04d82c7c73f0e3157ea7be6a8

Comment by Githook User [ 11/Feb/15 ]

Author:

{u'username': u'kaloianm', u'name': u'Kaloian Manassiev', u'email': u'kaloian.manassiev@mongodb.com'}

Message: SERVER-16799 Report locking stats in the slow query log
Branch: master
https://github.com/mongodb/mongo/commit/a4ed524990f23821df57fbd4c8aafbcff574823e

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