1. 环境描述
操作系统版本：SUSE Linux Enterprise Server 10 sp2 (x86_64)
数据库版本：Oracle 11.1.0.7.16
VCS版本：5.1
blog地址：http://blog.csdn.net/hw_libo/article/details/41171561
2. 问题现象及分析
凌晨3:46左右，手机短信收到数据库异常告警。
（1）查看数据库alert日志
Sun Nov 16 03:46:51 2014 Stopping background process SMCO Stopping background process FBDA Shutting down instance: further logons disabled Sun Nov 16 03:46:54 2014 kkjcre1p: unable to spawn jobq slave process, slot 0, error 1089 Stopping background process CJQ0 Stopping background process QMNC Stopping background process MMNL Stopping background process MMON Sun Nov 16 03:47:03 2014 Shutting down instance (immediate) License high water mark = 366 Sun Nov 16 03:51:52 2014 License high water mark = 366 USER (ospid: 8654): terminating the instance Sun Nov 16 03:51:52 2014 ORA-1092 : opiodr aborting process unknown ospid (28656_47367034883680) Sun Nov 16 03:51:52 2014 LGWR waiting for instance termination
并未发现较为明显的异常原因。
同时也查看了那个时间段的报告，发现数据库压力不大，也没有什么异常的SQL存在。
（2）检查OS资源使用
系统资源使用正常，IO也不高。
（3）查看messages日志
Nov 16 03:42:46 boscodb AgentFramework[10894]: VCS ERROR V-16-2-13027 Thread(4149214112) Resource(ora_vg) - monitor procedure did not complete within the expected time. Nov 16 03:42:46 boscodb Had[10258]: VCS ERROR V-16-2-13027 (boscodb) Resource(ora_vg) - monitor procedure did not complete within the expected time. Nov 16 03:43:01 boscodb su: (to root) root on none …… Nov 16 03:45:39 boscodb su: (to oracle) root on none Nov 16 03:45:47 boscodb AgentFramework[10894]: VCS ERROR V-16-2-13210 Thread(4154813344) Agent is calling clean for resource(ora_vg) because 4 successive invocations of the monitor procedure did not complete within the expected time. Nov 16 03:45:47 boscodb Had[10258]: VCS ERROR V-16-2-13210 (boscodb) Agent is calling clean for resource(ora_vg) because 4 successive invocations of the monitor procedure did not complete within the expected time. …… Nov 16 03:46:48 boscodb AgentFramework[10894]: VCS ERROR V-16-2-13006 Thread(4153760672) Resource(ora_vg): clean procedure did not complete within the expected time. Nov 16 03:46:48 boscodb Had[10258]: VCS ERROR V-16-2-13006 (boscodb) Resource(ora_vg): clean procedure did not complete within the expected time. Nov 16 03:46:49 boscodb AgentFramework[10899]: VCS ERROR V-16-2-13067 Thread(4155194272) Agent is calling clean for resource(ora_archive) because the resource became OFFLINE unexpectedly, on its own. Nov 16 03:46:50 boscodb Had[10258]: VCS ERROR V-16-2-13067 (boscodb) Agent is calling clean for resource(ora_archive) because the resource became OFFLINE unexpectedly, on its own. Nov 16 03:46:51 boscodb AgentFramework[10899]: VCS ERROR V-16-2-13068 Thread(4155194272) Resource(ora_archive) - clean completed successfully.
原来是VCS出现了错误，监控vg超时了，这些错误信息在VCS的日志中也有记录。
3. 解决办法
检查了监控vg的moniter脚本，发现也没有异常，而且脚本在其他库，压力都比较大的都不曾出问题。
当前的配置为：
Application ora_vg (
StartProgram = "/opt/BOSCO_ora/bin/vg_start.sh"
StopProgram = "/opt/BOSCO_ora/bin/vg_stop.sh"
CleanProgram = "/opt/BOSCO_ora/bin/vg_clean.sh"
MonitorProgram = "/opt/BOSCO_ora/bin/vg_monitor.sh"
MonitorInterval = 30
MonitorTimeout = 30
)
决定暂时将监控时长加大到90s，可以使用两种方法：
（1）可以修改main.cf，但需要重启VCS，无操作时间窗口
（2）命令动态修改
haconf -makerw
hares -modify ora_vg MonitorTimeout 90 ## 调整监控时长为90s，默认是60s
haconf -dump
blog地址：http://blog.csdn.net/hw_libo/article/details/41171561
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