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  1. Documentation
  2. DOCS-9315

Comment on: "manual/tutorial/transparent-huge-pages.txt"

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    • Icon: Bug Bug
    • Resolution: Won't Fix
    • Icon: Major - P3 Major - P3
    • 01112017-cleanup
    • None
    • None

    Description

      Using the init.d script "disable-transparent-hugepages" on Ubuntu 14.04 LTS, having it enabled via "sudo update-rc.d disable-transparent-hugepages defaults" won't start in the correct order.

      mongoDB's log:

      2016-11-14T14:14:37.954+0000 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
      2016-11-14T14:14:37.954+0000 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
      2016-11-14T14:14:37.954+0000 I CONTROL  [initandlisten] 
      2016-11-14T14:14:37.954+0000 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
      2016-11-14T14:14:37.954+0000 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
      2016-11-14T14:14:37.954+0000 I CONTROL  [initandlisten] 
      

      But when I check "/sys/kernel/mm/transparent_hugepage/enabled", it's set to "never":

      root@xxx:/root# cat /sys/kernel/mm/transparent_hugepage/enabled
      always madvise [never]
      

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            andrew.aldridge@mongodb.com Andrew Aldridge
            xgen-internal-docs Docs Collector User (Inactive)
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            Dates

              Created:
              Updated:
              Resolved:
              7 years, 13 weeks, 2 days ago