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OnCommand Unified Manager Core Package server hangs due to parallelism

Applies to

OnCommand Unified Manager Core Package 5.x (DFM)

Issue

A OnCommand Unified Manager Core Package (DFM) server can hang due to parallelism if the following analysis from the logs and symptoms are observed:

  • Any interactions with the User Interface (UI) or DFM command line interface (CLI) causes the application to hang.
  • The following message is observed some time before the hang in the sybase log:
Connection terminated abnormally
  • The 'processor thread' sequence hangs and is unable to contact the DBserver from the DFMMonitor.log file:
[dfmeventd:ERROR]: [23324:0x7f735b6f8700]: dfmscheduler has not been responding since 14 Jun 18:46.
[dfmeventd: INFO]: [23324:0x7f735fd59740]: waiting for repeater thread to finish
[dfmeventd: INFO]: [23324:0x7f735b7f9700]: repeater thread exiting
[dfmeventd: INFO]: [23324:0x7f735fd59740]: waiting for high priority processor thread to finish
[dfmeventd: INFO]: [23324:0x7f735bafc700]: processor thread cleaning up event queue
[dfmeventd: INFO]: [23324:0x7f735b8fa700]: processor thread cleaning up event queue
[dfmeventd: INFO]: [23324:0x7f735b9fb700]: processor thread cleaning up event queue
[dfmeventd: INFO]: [23324:0x7f735bafc700]: processor thread exiting
[dfmeventd: INFO]: [23324:0x7f735fd59740]: waiting for medium priority processor thread to finish
[dfmeventd: INFO]: [23324:0x7f735b8fa700]: processor thread exiting
[dfmeventd: INFO]: [23324:0x7f735b9fb700]: processor thread exiting
[dfmeventd: INFO]: [23324:0x7f735fd59740]: waiting for low priority processor thread to finish
[dfmeventd: INFO]: [3564:0x7fe0bcb5a740]: starting event service
[dfmeventd:ERROR]: [3564:0x7fe0bcb5a740]: Error connecting to the database: (-308) [Sybase][ODBC Driver][SQL Anywhere]Database server not found
[dfmeventd:ERROR]: [3564:0x7fe0bcb5a740]: Could not connect to database in eventd initialization.

 

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