Solution : https://service.sap.com/sap/support/notes/1270808 (SAP Service marketplace login required)
Key words :
component bc-eim-esh, icm connection test failed, trexdaemon trace file, sap application server, call transaction sm59, icm connection test, call transaction sicf, trex admin tools, trex abap customizing, core file exists
Related Notes :
1501222 | TREX 7.00 & 7.10: ICM_HTTP_CONNECTION_FAILED |
1249465 | TREX 7.1: Installing TREX for Embedded Search |
1164979 | SAP NetWeaver 7.0 Embedded Search: Central Note |