All these messages are type messages. ( For case refer delete eoio messages from queue). In that cases OPEN DATASET returns with sy-subrc 8 (0) Using multi server for SAP systems bring with many problems that is hard to find.ICMHTTPCONNECTIONFAILED was one of these errors whose reason is directly dependent with server name.
Hello,
The ICM_HTTP_CONNECTION_FAILED indicates that the SAP was acting as the HTTP client, and that the ICM could not connect to the target server.
The settings mentioned in this blog could be the root cause, but they are not the only possible root case.
Checking the entries written to the dev_icm trace file right after performing a connection test can reveal the other possible root causes.
For example:
1) “hostname unknown” -> DNS issue;
2) “connection refused” -> network issue; something at the network blocking the connection (firewall?); details of the target server are incorrect (hostname, port).
Regards,
Isaías