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2832542 - SSL connection to ASE couldn't finish login process on 16.0 SP03 PLxx -- SAP ASE

Symptom

  • Parameter 'enable ssl' = 1 in ASE configuration file.
     
  • Some SSL connection couldn't complete login process:
    • The client used SSL port to connect to ASE
    • Related row from sp_who output or sysprocesses show 'Command: 0 MAINTENANCE TOKEN' for the specific server process having a spid (e.g. spid 123 which is stuck).
    • "dbcc pss(0,'123')" shows status bit in PSS (Process Status Structure)::   p2stat=0x40000 (P2_LOGIN_IN_PROGRESS)). This bit may be clear fast for normal connections after login process.
    • Output from 'dbcc stacktrace(123)' may include routine login() or ssl_handshake() on the stack.
    • One incident reported hanging client connections having 'pcpucur had been increasing in PSS and took much cpu time.
    • Some hanging connections with status bit P2_LOGIN_IN_PROGRESS may have no pcpucur change in two samples of 'dbcc pss(0,spid)' output after a long time.


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Environment

SAP Adaptive Server Enterprise (ASE) 16.0 SP03 (PL07, PL08, PL08 HF1).

Product

SAP Adaptive Server Enterprise 16.0

Keywords

SSL, handshake, 819937, CR819937, CR#819937, CCL, Crypto , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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