1934023 - Application server startup fail with an ICM connection error | SAP Knowledge Base Article

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1934023 - Application server startup fail with an ICM connection error

Symptom

The SAP application server is no able to startup with no more work processes.

Dispatcher trace file (dev_disp):

*** DP_FATAL_ERROR => DpWPCheck: no more work processes
*** DISPATCHER EMERGENCY SHUTDOWN ***

The work process trace file (dev_w*):

M *** ERROR => ThPlgConnectToIcm: IcmReadAck failed (-8, ni_rc=-6) 
M in_ThErrHandle: 1
M *** ERROR => ThStart: connect to icman (step 1, th_errno 2, action 3, level 1) 

[...]

M call ThrShutDown (1)...
M ***LOG Q02=> wp_halt, WPStop (Workp. 0 XXX ) 


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Environment

  • Two SAP systems running in the same server;
  • This issue was initially identified in Windows systems;
  • Usually this occurs with a specific startup order, for example, starting the system A with the system B already UP and running. If the systems are started the other way round, there is no issue.

Keywords

SMICM, startsap, host IPv6, IPv4, icman, Internet Communication Manager, bind, listen , KBA , BC-CST-IC , Internet Communication Manager , BC-CST-STS , Startup Service , Problem

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