[SERVER-15395] Remove "last 100 write lock%" & "write locked now" from HTTP console Created: 25/Sep/14  Updated: 28/Sep/16  Resolved: 03/Apr/15

Status: Closed
Project: Core Server
Component/s: HTTP Console, Performance, Usability
Affects Version/s: 2.7.6
Fix Version/s: 3.1.1

Type: Improvement Priority: Major - P3
Reporter: James Wahlin Assignee: James Wahlin
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Documented
is documented by DOCS-8993 Remove "last 100 write lock%" & "writ... Closed
Related
related to SERVER-14978 Statistics Changes for Document-level... Closed
is related to SERVER-16342 Top stats lock is hot Closed
Backwards Compatibility: Minor Change
Sprint: Quint Iteration 3.1.1
Participants:

 Description   

The HTTP console has a section that displays:

  1. Last 100 write lock %
  2. A "write locked now" boolean

The first displays all zeros as the metric that captures is commented out.

The second was arguably useful prior to database locks but less so once document level locking is in place.

Removing these statistics will allow for reduction in the volume of statistics we gather and a lower memory footprint. Especially for mongod instances with a large # of collections, as we store stat snapshots at the collection level.



 Comments   
Comment by Githook User [ 03/Apr/15 ]

Author:

{u'name': u'James Wahlin', u'email': u'james.wahlin@10gen.com'}

Message: SERVER-15395 Remove lock stats from web interface
Branch: master
https://github.com/mongodb/mongo/commit/998cf155edc16019758d163e8f844c0986996bcf

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