Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-17362

ClientCursor::staticYield can't unlock b/c of recursive lock ns

    XMLWordPrintable

Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Incomplete
    • 2.6.6
    • None
    • Querying
    • None
    • SSD drives
      CentOS 6.5
    • Linux
    • Hide

      it's intermittent and I can't replicate it. It's not even specific to times of heavy load.

      Show
      it's intermittent and I can't replicate it. It's not even specific to times of heavy load.

    Description

      Intermittently my logs fill with "ClientCursor::staticYield can't unlock b/c of recursive lock ns ..."[millions of entries] . It happens on a lot of different collections but always on a findAndModify. When it's at it's worse - the lock lasts 6-7 seconds but the entire database is unresponsive during this time.
      I've read that it may may be related to insufficient indexing but I've checked that with a .explain and the cursor is BtreeCursor.
      The issue is similar to this SERVER-15583
      but an upgrade to 2.6.6 solved his whereas I'm already on 2.6.6.

      Attachments

        Issue Links

          Activity

            People

              ramon.fernandez@mongodb.com Ramon Fernandez Marina
              ricei Ian Rice
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: