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2041235 - SM12 diagnosis shows "Error: Lock server exists, but is not addressed" or "Error: Local lock management process despite external lock management"

Symptom

While running  "transaction SM12 => Menu 'Extras' => Diagnosis", the following errors are shown:

Error: Local lock management process despite external lock management    
Error: Lock server exists, but is not addressed: <instance name>_<system_id>_<instance_number>   

The screenshots look like following:
    SM12.jpg


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Environment

SAP NetWeaver system

Product

SAP NetWeaver all versions

Keywords

SM12, enqueue, lock, entry, delete, rdisp/wp_no_enq, cannot be addressed, despite external lock management,central lock server , KBA , BC-CST-EQ , Enqueue , Problem

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