Solution : https://service.sap.com/sap/support/notes/1134934 (SAP Service marketplace login required)
Key words :
><html><head><title>400 bad request</title></head><body><h1>400 bad request</h1><, [0x51fdad]/lib64/tls/libpthread, 0[0x2a95cc8650]/lib64/tls/libc, [0x44c199]/lib64/tls/libpthread, </body></html>, https request, 0 400 bad requestdate, doctype html public, -//ietf//dtd html 2, required field ~server_protocol
Related Notes :
| 1122356 | Message server: Error with large HTTP POST requests |