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  1. Core Server
  2. SERVER-32049

significant performance degradation on mongo server with ~140K collections

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical - P2
    • Resolution: Incomplete
    • Affects Version/s: 3.2.12
    • Fix Version/s: None
    • Component/s: None

      Description

      Hi,
      We have a mongo server with ~140K collections. After restart or new node sync all file descriptors of all collections stay open, which is normal, what is abnormal is that the app suffered from a severe performance degradation until those FDs where closed. Is there any limitation regarding number of collections.

      Another question: By default mongo closes FDs after 28hrs by default, except for the startup options `file_manager=(close_idle_time=300)` is there any "dynamic" parameter . we can use ?

      Or maximum number of open files is 265000

      Br

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            Assignee:
            backlog-server-triage Backlog - Triage Team
            Reporter:
            tapuhi Avraham Apelbaum
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              Updated:
              Resolved: