uxjobend / uxjobinit and uxioserv use a lot of cpu

Document ID : KB000103958
Last Modified Date : 02/07/2018
Show Technical Document Details
Issue:
Sometimes, due to unknown reasons, several uxjobend / uxjobinit processes remain in the system using a lot of CPU, the same as the IO Server (uxioserv).
Job Events display the affected jobs in status Running or Pending, so does the DQM - Queued Jobs.
At the same time, the RSY process may also appear stuck in the past, but Launcher seems not affected as the rest of the Jobs continue to be launched.

The typical error that appears in the universe.log is:
|ERROR|X|IO |pid=p.t| o_ord_cycle   | Last IO operation failed with error 3. End of cycle

 
Environment:
All OS affected
Cause:
Still under investigation but seems a deadlock in the u_fmsb60 data file.
Resolution:
Workaround:
1. Kill remaining uxjobend / uxjobinit processes

2. Stop Dollar Universe node via the command:
unistop force

3 Launch a reorganization offline:
unireorg

4. Start Dollar Universe:
unistart

 
Additional Information:
The issue cannot be reproduced at will.
In case the issue occurs on your environment, please open a case with CA Support.