oracle12c的日志查看

查看GI日志：切换到grid用户

查看DB日志：切换到oracle的目录下

执行[oracle@swnode1 ~]$ adrci

[oracle@swnode1 ~]$ adrci

ADRCI: Release 12.2.0.1. - Production on Fri Jul  :: 

Copyright (c) , , Oracle and/or its affiliates.  All rights reserved.

ADR base = "/u01/app/oracle"
adrci> show homes
ADR Homes:
diag/clients/user_oracle/host_2908371209_107
diag/rdbms/orcl/gnnt1

alert日志就在上述位置

[oracle@swnode1 ~]$ tail -f /u01/app/oracle/diag/rdbms/orcl/gnnt1/alert/log.xml
 <txt>Please see the VKTM trace file for more details:
 </txt>
</msg>
<msg time='2018-07-05T09:12:34.163+08:00' org_id='oracle' comp_id='rdbms'
 type='UNKNOWN' level='16' host_id='swnode1'
 host_addr='::1' pid='23141' con_uid='1'
 con_id='1' con_name='CDB$ROOT'>
 <txt>/u01/app/oracle/diag/rdbms/orcl/gnnt1/trace/gnnt1_vktm_23141.trc
 </txt>
</msg>
^C