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Information for Database Error Code ORA-28544: connect to agent failed, probable Net8 administration error
Oracle® Database Error ORA-285441333/18

ORA-28544: connect to agent failed, probable Net8 administration error

Cause: Net8 reported a failure to make a RSLV connection or a protocol mode error when the Oracle server attempted to establish communication with a Heterogeneous Services agent or an external procedure agent. This usually is due to an administration error in setting up Net8 service definitions in TNSNAMES.ORA or LISTENER.ORA: A basic network connection is opened, but it connects to a program which does not use the appropriate protocol. This often is a sign that the connection goes to the wrong program.

Action: Check Net8 administration in the following ways: -- When using TNSNAMES.ORA or an Oracle Names server, make sure that the connection from the ORACLE server uses the correct service name or SID. -- Check LISTENER.ORA on the agent''s host machine to assure that the service name or SID refers to the correct agent executable in its (PROGRAM=...) clause. -- Confirm in TNSNAMES.ORA or the equivalent service definition that sevice ''extproc_connection_data'' does NOT contain (HS=), or that the service definition used by a Heterogeneous Services database link DOES contain (HS=).

Error Type: ORA

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