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SAP Knowledge Base Article - PreviewSymptom
Sap Web dispatcher is unable to reach the backend message server, in the dev_wdisp trace you can see the following:
IcmWatchDogThread: watchdog started
*** ERROR => IcrIHandleHTTPClientRequest: IctHttpOpenMessage() failed (rc=29) for request (example.sap.com), headerLen (0), contenLen (-1), buffer used (7) [icrxxutil.c 430]
*** ERROR => Read info from XXX message server example.sap.com failed: Internal ICM error(-1), see also SAP note 1528396 [icrxx.c 4318]
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Environment
SAP Web Dispatcher
Product
SAP Web Dispatcher all versions
Keywords
sap web dispatcher, ms/server_port, HTTPS, HTTP, Read info from message server, Internal ICM error(-1) , KBA , BC-CST-WDP , Web Dispatcher , Problem
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