Solution : https://service.sap.com/sap/support/notes/773830 (SAP Service marketplace login required)
Summary :
The SAP Note addresses ambiguity in determining the fully qualified host name (FQHN) usage by the Internet Communication Manager (ICM). The configuration can be set via three parameters: SAPLOCALHOST, SAPLOCALHOSTFULL, and icm/host_name_full, with a specific hierarchy for which parameter the ICM utilizes. SAPLOCALHOSTFULL is prioritized if set in the SAP profile, ideal for high availability (HA) setups. If not configured, icm/host_name_full, and subsequently the FQHN of the OS, are used. It is advised to ensure these parameters align with actual or virtual host names to prevent configuration errors. This configuration is effective from specified patch levels for SAP systems and J2EE services.
Key words :
saplocalhost saplocalhostfull icm/host_name_full solution, internet communication manager, high availability configurations, fully qualified host, operating system level, icm/host_name_full, parameter saplocalhost, fully qualified, operating system, ha configurations
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