There was an issue with the virtual machine on which i am running a 12.2.0.1.0 database.
Now after the virtual machine is restored, While starting the instance getting below error.
SQL> startup nomount;
ORA-03113: end-of-file on communication channel
SP2-0642: SQL*Plus internal error state 2133, context 3114:0:0
Unsafe to proceed
ORA-03114: not connected to ORACLE
In the alert log file have the below messages,
I already checked the time on the server and is in sync.
VKTM running at (1)millisec precision with DBRM quantum (100)ms
2019-09-01T15:20:59.967953+04:00
Warning: VKTM detected a time stall.
Time drifts can result in unexpected behavior such as time-outs.
Please see the VKTM trace file for more details:
2019-09-01T15:21:00.006494+04:00
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-01T15:21:25.615928+04:00
GEN0 started with pid=6, OS id=4446
2019-09-01T17:27:45.439074+04:00
Warning: VKTM detected a time stall.
Time drifts can result in unexpected behavior such as time-outs.
Please see the VKTM trace file for more details:
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-01T19:01:04.291726+04:00
Warning: VKTM detected a time stall.
Time drifts can result in unexpected behavior such as time-outs.
Please see the VKTM trace file for more details:
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-01T20:09:34.371816+04:00
Warning: VKTM detected a forward time drift.
Please see the VKTM trace file for more details:
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-02T00:04:50.874210+04:00
Warning: VKTM detected a forward time drift.
Please see the VKTM trace file for more details:
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-02T02:06:17.247479+04:00
Warning: VKTM detected a time stall.
Time drifts can result in unexpected behavior such as time-outs.
Please see the VKTM trace file for more details:
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-02T03:13:59.659107+04:00
Warning: VKTM detected a time stall.
Time drifts can result in unexpected behavior such as time-outs.
Please see the VKTM trace file for more details:
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-02T04:42:48.288284+04:00
Warning: VKTM detected a time stall.
Time drifts can result in unexpected behavior such as time-outs.
Please see the VKTM trace file for more details:
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-02T05:44:53.295722+04:00
Warning: VKTM detected a time stall.
Time drifts can result in unexpected behavior such as time-outs.
Please see the VKTM trace file for more details:
2019-09-02T05:44:54.368304+04:00
/u01/oracle/diag/rdbms/sprtst/sprtst/trace/sprtst_vktm_4441.trc
2019-09-02T07:34:57.292450+04:00
alter database open
ORA-1507 signalled during: alter database open ...
2019-09-02T07:35:07.200378+04:00
alter database mount
ORA-1034 signalled during: alter database mount ...
2019-09-02T07:36:58.932818+04:00
alter database mount
ORA-1034 signalled during: alter database mount...