oracle9i版本的ERP数据库无法正常关闭。

场景描述:oracle9i数据库正常关闭的时候，hang住在一个地方无法正常关闭。

解决思路:查看alert日志，分析问题。

[oraprod@erpdb1 ~]$ ./stopdb.sh 

You are running addlnctl.sh version 115.3

Shutting down listener process PROD ...

addlnctl.sh: exiting with status 0

You are running addbctl.sh version 115.7

Shutting down database PROD ...

hang住在此，不能继续正常关闭。

1)查看alert日志。看到如下语句 ：

[oraprod@erpdb1 bdump]$ tail -f alert_PROD.log

Completed checkpoint up to RBA [0x210fb.2.10], SCN: 0x094a.f71170bc

Mon Aug  6 10:25:19 2018

Shutting down instance: further logons disabled

Shutting down instance (immediate)

License high water mark = 90

Mon Aug  6 10:30:33 2018

Active call for process 22809 user 'oraprod' program 'oracle@erpdb1.arp.cn (TNS V1-V3)'

Active call for process 31347 user 'oraprod' program 'oracle@erpdb1.arp.cn (TNS V1-V3)'

Active call for process 437 user 'oraprod' program 'oracle@erpdb1.arp.cn (TNS V1-V3)'

SHUTDOWN: waiting for active calls to complete.

发现有三个用户保持连接导致，数据库无法正常关闭。先直接杀掉进程。

kill -9 22809

kill -9 31347

kill -9 437

数据库正常关闭。