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Active IQ Unified Manager is losing connection to monitored clusters due to InnoDB open file limit

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Applies to

ActiveIQ Unified Manager (AIQUM) 9.7+

Issue

  • Active IQ Unified Manager services stop functioning.
  • A reboot temporary resolves the issue until AIQUM operation stops again.
  • The MySQL error.log contains errors:
    2020-09-01T18:24:01.174848Z 210 [Warning] [MY-012152] [InnoDB] Open files 5006 exceeds the limit 5000

 

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