ORA_o00n Process High CPU Usage in 220.127.116.11
(Doc ID 1459376.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 to 22.214.171.124.0 [Release 11.2]
Information in this document applies to any platform.
126.96.36.199 database on ASM, the ora_o00n process consumes high CPU:
- top command output
2921 oracle 25 0 1715m 17m 15m R 99.5 0.1 658:32.91 ora_o001_trng
- Oracle process dump:
Current Wait Stack:
0: waiting for 'class slave wait'
slave id=0x0, =0x0, =0x0
wait_id=139 seq_num=140 snap_id=1
wait times: snap=358705 min 17 sec, exc=358705 min 17 sec, total=358705 min 17 sec
- OS truss/strace command shows the process is spinning on OS call gettimeofday
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