Refreshable PDB and ORA-17627: ORA-12578: TNS:wallet open failed Mustafa, 2023-11-14 Hi, Here is a quick note about refreshable pdbs. I have 19c (19.20) refreshable pdb. Source PDB and refreshable PDB are on different servers and this system is working for quite some time. Today, suddenly I started to get errors on pdb refresh: Oracle PL/SQL Error report - ORA-17627: ORA-12578: TNS:wallet open failed ORA-17629: Cannot connect to the remote database server 17627. 00000 - "%s" *Cause: An error returned by OCI while sending/receiving message from remote instance *Action: Look at error message and take appropriate action or contact Oracle Support Services for further assistance 12345678 Error report -ORA-17627: ORA-12578: TNS:wallet open failedORA-17629: Cannot connect to the remote database server17627. 00000 - "%s"*Cause: An error returned by OCI while sending/receiving message from remote instance*Action: Look at error message and take appropriate action or contact Oracle Support Services for further assistance it is interesting because there is… Continue Reading