ORA-1092: opitsk aborting process --- killed by oom killer, opitskaborting

ORA-1092: opitsk aborting process --- killed by oom killer, opitskaborting

Oracle version: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-64bit Production

OS version: Linux x86 64-bit
Oracle alert Log error:

opiodr aborting process unknown ospid (19506) as a result of ORA-1092Wed Jul 15 16:18:42 2015ORA-1092 : opitsk aborting processWed Jul 15 16:18:52 2015opiodr aborting process unknown ospid (19555) as a result of ORA-1092Wed Jul 15 16:18:52 2015ORA-1092 : opitsk aborting processWed Jul 15 16:18:52 2015opiodr aborting process unknown ospid (19504) as a result of ORA-1092Wed Jul 15 16:18:52 2015ORA-1092 : opitsk aborting processWed Jul 15 16:19:03 2015Instance terminated by PMON, pid = 2238

Operating System Error Log:

Jul 15 16:18:27 allwincredit kernel: Out of memory: Kill process 2258 (oracle) score 46 or sacrifice childJul 15 16:18:27 allwincredit kernel: Killed process 2258, UID 1101, (oracle) total-vm:7431020kB, anon-rss:9700kB, file-rss:1132084kBJul 15 16:18:27 allwincredit kernel: java invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0Jul 15 16:18:27 allwincredit kernel: java cpuset=/ mems_allowed=0-2Jul 15 16:18:27 allwincredit kernel: Pid: 4217, comm: java Not tainted 2.6.32-358.el6.x86_64 #1

In Linux, there is an Out Of Memory killer feature, which will jump Out when the system Memory is used up and selectively kill some processes to release some Memory.
Unfortunately, the oracle process was killed.

What is oom killer:
Http://www.360doc.com/content/11/1119/18/7492958_165786637.shtml
How to close oom killer: http://www.cnblogs.com/itfriend/archive/2011/12/14/2287160.html

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