Error received during activation on a 3 node RAC:
"Error: Failed to find information about which instance is active. ORA-01405: fetched column value is NULL. [sp_tconf/12959]"
SQL> select thread#, status, groups, instance from gv$thread;
1 OPEN 4 HLPMTA
2 OPEN 4 HLPMTB
3 OPEN 4 HLPMTC
4 CLOSED 4
select instance_number, host_name from gv$instance;
1 HLPMTA
3 HLPMTC
2 HLPMTB
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