1. While creating a cluster database, dbca error out with TNS-04404, TNS-04414 & TNS-04612 errors.
2. Similar problem is faced, when netca is used to add new services
Utility tnsping does not report this problem.
Probable cause of these errors is an entry in tnsnames.ora file. Due to manual editing of tnsnames.ora, some special characters are added, which are causing file-parsing issues.
1. Remove tnsnames.ora file & recreate using netca
2. Remove the specific entry, which is reported as part of ‘null RHS’ error