OnCommand Unified Manager 5.X WebGUI and CLI hung due to Sybase parallelism being enabled

Applies to

• OnCommand Unified Manager 5.0.x (DFM)
• OnCommand Unified Manager 5.1.x (DFM)
• OnCommand Unified Manager 5.2.1 (DFM)

Issue

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

• Any interactions with the WebGUI 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" file:

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
Knowledgebase
[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.