SAP Knowledge Base Article - Preview

1943904 - High CPU usage after Java clients migrates to jConnect 7 - SAP ASE

Symptom

  • After migrating Java client applications to use jConnect 7.0 from jConnect 6.0 or earlier, ASE may experience high CPU usage.
     
  •  This would happen together with the following conditions :
    • Java application uses a lot of preparedStatement objects
    • Java application has long running connections to ASE (like application server using jConnect as cached connections to ASE)
    • Java application does not close preparedStatement objects which are created earlier

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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7
  • SAP Sybase Software Developer Kit (SDK) 15.7
  • jConnect for JDBC 7.0

Product

SAP Adaptive Server Enterprise 15.7 ; Sybase SDK 15.7

Keywords

DYNAMIC_PREPARE, monCacheProcedure, monCachedProcedure, monCacheProcedures, spinlock, contention, upgrade, migration, LWP, "light weight procedure",  compilation , KBA , BC-SYB-SDK , SDK , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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