Kewastunpackstats(): Bad Magic 1 (0x1108f7b87, 0) In Alert Logfile
现象
Alert告警日志报错:
Wed Aug 14 18:00:59 2013
kewastUnPackStats(): bad magic 1 (0x1109fe0c2, 0)
kewastUnPackStats(): bad magic 1 (0x1109fe0c2, 0)
环境:
Oracle 11.2.0.1 单实例环境
Aix 6.1
Asm
原因:
这是一个已知BUG导致的,主要是由于升级到11g后的一些变更导致的,
处理
文档提示,这是由于ASH信息读取出错导致的:
It is caused by the variable part of the Active Session History rows (the moduile, action program, etc. information) not being stored properly, causing any read-back of this data through views like (G)V$ACTIVE_SESSION_HISTORY to fail.
该BUG不会引起严重问题,在Oracle Database 12c或者11.2.0.2之后的补丁集中被修正。
参考文档:
Kewastunpackstats(): Bad Magic 1 (0x1108f7b87, 0) In Alert Logfile After Upgrading to 11.2.0.1 (Doc ID 1227524.1)
http://www.eygle.com/archives/2012/06/kewastunpackstats.html
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