[DOCS-4753] Update mongostat docs with WT changes Created: 02/Feb/15  Updated: 26/Feb/15  Resolved: 26/Feb/15

Status: Closed
Project: Documentation
Component/s: None
Affects Version/s: None
Fix Version/s: v1.3.18

Type: Task Priority: Major - P3
Reporter: Allison Reinheimer Moore Assignee: Allison Reinheimer Moore
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Participants:
Days since reply: 8 years, 50 weeks, 6 days ago

 Description   

From Mike O'Brien:

Different columns may be displayed depending on if you run mongostat against a node running wiredTiger, or mmapv1:

  • in wiredtiger, the "% dirty" and "% used" are new columns which indicate the percentage of the wiredtiger cache with dirty bytes written, and the percentage of the cache thats in use, respectively.
  • if using a 3.0 (or later) version of mmapv1, the "locked db %" column is now excluded (since we have documnet level locking, so there's no meaningful metric for this anymore).
  • some columns now only get displayed if using mmapv1: mapped, index miss %
  • if using wiredtiger, the "flushes" column refers to the number of wiredtiger checkpoints that have been triggered between each polling interval. if using mmapv1, the meaning of this column is the same (journal flushes)


 Comments   
Comment by Githook User [ 26/Feb/15 ]

Author:

{u'username': u'schmalliso', u'name': u'Allison Moore', u'email': u'allison.moore@10gen.com'}

Message: DOCS-4753: adds/updates mongostat columns for WT

Signed-off-by: kay <kay.kim@10gen.com>
Branch: master
https://github.com/mongodb/docs/commit/a1cd19995cc79286c2397c0f231feabf3139eeb7

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