ORA-08103 during execute of job "SYS"."ORA$AT_SA_SPC_SY_66620"
Oracle 12.1.0.2 SE-2
Oracle ASM 12.1.0.2, standalone, no RAC no clustering of any kind
Oracle Linux 6
Received this in the alert log:
Sun Feb 04 18:08:16 2018Errors in file /u01/app/oracle/diag/rdbms/dwprd/dwprd/trace/dwprd_j001_11511.trc:ORA-12012: error on auto execute of job "SYS"."ORA$AT_SA_SPC_SY_66620"ORA-08103: object no longer existsORA-06512: at "SYS.DBMS_SPACE", line 2598Sun Feb 04 18:10:09 2018
Very occasionally I get something like this - 3 times in the last year. Usually it's due to trying to gather stats on an external table, and I have created a job to lock stats on all external table to prevent that. But this time the timing didn't look right so decided to dig deeper.