Critical ops check connection problem
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Common suggestions: - Using default password
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4 ETW000 Connecting as on connection 0 (nls 0). C Starting user session: OCISessionBegin(con=0, usr='/', svc=153495E0, srv=15349F30, usr=15462590) C OCISessionBegin(OCI_DEFAULT) failed with SQL error 1017: C ORA-01017: invalid username/password logon denied C *** ERROR => CONNECT failed with sql error '1017'. you see in the work process trace: C Connecting as on connection 0 (nls 0). In general you can see that there is no explicit user name for the connection, only the / and the three letters connection string after the sign E.g. The work process trace or the trans.log contains the error ORA-01017, if it tries to connect with the SAP OS user (OPS$ user). In this case the name of the users are beginning with the domain: DOMAIN\adm or DOMAIN\SapService
CRITICAL OPS CHECK CONNECTION PROBLEM WINDOWS
In windows system it is also possible that the SAP users are domain users. In case of unix system this user is the adm user. In windows systems the ABAP AS is using the service logon user SAPService for the OS login.
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If there is a problem during start of the ABAP AS the errors are logged into the work process traces. The connection for the login user adm can be tested with the command R3trans -d In this case check the trans.log in the same directory, where the command is started. In case that the users are windows domain users, the domain name is included also to the user name (e.g. Usually the SAP OS user is the adm user or in Windows systems it can be also the service logon user SAPService. There is an error during the login of the SAP OS user (OPS$ user) into the Oracle database. It could be also a problem during reading the password of SAP schema user from the table SAPUSER. It could be a problem with login of the OPS$ user (this is the OS user used to the database connection) or with the login of the SAP schema owner user (e.g. An issue belongs to this topic, if there is a problem during the OPS$ process. The OPS$ mechanism is used for the connection from the ABAP Application Server to the Oracle database server. This documentation contains solutions for the OPS$ connection related issues.