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2681259 - Open Client multithread app fails with The maximum number of connections have already been opened - SDK for SAP ASE


CT-Library multithread application fail on the 26th open connection:
Thread_26:Open Client Message:
Thread_26:Message number: LAYER = (1) ORIGIN = (1) SEVERITY = (1) NUMBER = (6)
Thread_26:Message String: ct_connect(): user api layer: external error: The maximum number of connections have already been opened.
Thread_26:ERROR: ct_connect failed



  • SAP Sybase Software Developer Kit (SDK) 15.7
  • SAP Adaptive Server Enterprise (ASE) Software Developer Kit (SDK) 16.0
  • Open Client Client-Library
  • ctlibrary


SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0 ; SAP Adaptive Server Enterprise SDK 16.0 ; Sybase Software Developer Kit 15.7


KBA , BC-SYB-SDK , SDK , Problem

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