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• Only one MPS History Server is active at any time
• To start a new server, you must login as laci on lcls-daemon2

  Code Block
  /etc/rc3.d/S99st.mpshist start

• To stop a production server, type

  Code Block
  /etc/rc3.d/S99st.mpshist stop

  • Wait 10 seconds!

Troubleshoot

• The clearest sign of problems is an empty table in the HistoryViewer tab on the MPS GUI
• Every few months, there seem to be weird socket exceptions that don't halt the server (to be investigated)

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• To test whether the server is working, use POSI:EP02:400:MTLM_LGC_BYPV, e.g.

  Code Block
  caput POSI:EP02:400:MTLM_LGC_BYPV 1

  wait 10 seconds!

  Code Block
  caput POSI:EP02:400:MTLM_LGC_BYPV 0

  Verify that there is a message in the MPS GUI (not in cmlog).

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