Shulou(Shulou.com)06/01 Report--

It was found that the oracle database was down this morning, and it was normal to restart the database. After querying the alter log, it was found that in the

23:00 PMON (ospid: 2853): terminating the instance due to error 471 causes the database to stop

Log screenshot alter log log

Wed Mar 08 23:36:02 2017

System state dump requested by (instance=1, osid=2853 (PMON)), summary= [abnormal instance termination].

System State dumped to trace file / app/oracle/diag/rdbms/oracle11/oracle11/trace/oracle11_diag_2871.trc

Wed Mar 08 23:36:02 2017

2. Check the / var/log/message system log

It was found to be hypermemory.

3. Find the reason, and then check the memory usage.

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