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2917868 - ENQU, ENSA 2.0: Lock Table Overflow

Symptom

  • You're getting error "System error during lock operation. Execute diagnostics in SM12".
     
  • System has Standalone Enqueue Server (ASCS), with ENSA 2.0 configuration (Standalone Enqueue Server 2).
    See on this page Comparison of Old and New Profile Parameters
     
  • On transaction SM12, menu Extras -> Statistics, you find that "Maximum Fill level" reached the "Maximum Number...":
       Maximum Number of Lock Entries 250000
       Maximum Fill level   250000
     
  • Amount of locks can also be seen on SMENQ transaction:
       Current Number of Locks        250000
       Peak Number of Locks            250000
       Configured Number of Locks   250000
     
  • You have identified you are getting lock table overflow; see more details on Knowledge Base Article 1565578 - Lock Table Overflow


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Environment

System runs with ENSA 2.0, you'll find following parameters from DEFAULT.PFL 
  enq/enable = TRUE
  enque/process_location = REMOTESA
  enq/serverhost = <enqueue server 2 host>
  enq/serverinst = <instance number>

Product

SAP S/4HANA 1809

Keywords

ASCS, SCS, enque ,ENQ_OVERFLOW, EnquServerException, enque/table_size, overflow,
ENSA2, Standalone Enqueue Server 2, enq/enable, enq/server/schema, enq/server/schema_0, Schema0 , KBA , BC-CST-EQ , Enqueue , Problem

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