Article ID: 126895, created on Sep 14, 2015, last review on Sep 14, 2015

  • Applies to:
  • Operations Automation 5.4
  • Operations Automation 5.3

Symptoms

OA tasks fail with the error:

The last execution was "Destination host_id #43 : Internal error: Unknown unexpected exception raised."

Cause

Insufficient resources on OA Management Node.

Resolution

  1. Check memory usage on OA Management Node:

    # free -mtl
    total       used       free     shared    buffers     cached
    Mem:          4096       4066         29          0          0        321
    Low:          4096       4066         29
    High:            0          0          0
    -/+ buffers/cache:       3745        350
    Swap:         8192         77       8114
    Total:       12288       4144       8143
    
  2. If memory usage is high, restart pem service using the command:

    # service pem restart
    
  3. Increase memory allocated to OA MN to prevent such issues in future.

Search Words

failed task

task failure

Unknown unexpected exception raised

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