Cisco Cisco Prime Unified Operations Manager 8.7 白皮書
Operations Manager Deployment Best Practices
All contents are Copyright © 1992–2006 Cisco Systems, Inc. All rights reserved.
Page 87 of 112
7.7.3 High Event Throughput Conditions
In high CPU conditions such as rediscovery, the dashboards can stop refreshing. This can
cause the screen to go blank, or it can bring up a browser message stating that a DNS
error has occurred. Press F5 and see if the screen refreshes.
If there is a high rate of incoming events on a particular set of devices or destinations and
the corresponding alert never gets a chance to go into the Cleared state, high memory
consumption can occur. This eventually leads to a build-up of events in the events
database, causing systematic degradation and eventual failure of critical services within
the Operations Manager server. To avoid this situation, you should manually clear long-
lived alerts from the system on a periodic basis.
If this situation occurs, new events will not be shown in the Service Level View, the
Service Quality Alert display, or the Alerts and Events display.
To clean the database, do the following:
cause the screen to go blank, or it can bring up a browser message stating that a DNS
error has occurred. Press F5 and see if the screen refreshes.
If there is a high rate of incoming events on a particular set of devices or destinations and
the corresponding alert never gets a chance to go into the Cleared state, high memory
consumption can occur. This eventually leads to a build-up of events in the events
database, causing systematic degradation and eventual failure of critical services within
the Operations Manager server. To avoid this situation, you should manually clear long-
lived alerts from the system on a periodic basis.
If this situation occurs, new events will not be shown in the Service Level View, the
Service Quality Alert display, or the Alerts and Events display.
To clean the database, do the following:
1. From the command prompt, stop the daemon manager (
net stop crmdmgtd
).
2. Go to the directory <Operations Manager install folder>/CSCOpx/bin on the
command line.
3. Execute the command
perl dbRestoreOrig.pl dsn=itemEpm dmprefix=EPM
.
4. Start the Daemon manager (
net start crmdmgtd
).
Alternatively, the dbclean utility mentioned in the Operations Manager FAQ takes care of
cleaning all of the Operations Manager databases. It prompts you for each database
before cleaning. You should be careful to choose yes only for itemEpm to clean the EPM
database.
To clean up data in the system, do the following:
cleaning all of the Operations Manager databases. It prompts you for each database
before cleaning. You should be careful to choose yes only for itemEpm to clean the EPM
database.
To clean up data in the system, do the following:
1. Open a command prompt.
2. Run
2. Run
perl dbclean.pl under \<NMSROOT>\objects\vhm\utilities\
.
For example:
C:\Program Files\CSCOpx\objects\vhm\utilities>perl dbclean.pl
The following is displayed:
dbclean Database cleanup utility.
Copyright (c) 2003 Cisco Systems Inc.
*************************** W A R N I N G ***************************
Running this utility will remove data inside ALL the databases in the
IP Telephony Monitor Application
Type YES if you still want to continue :(type YES)
The CW2000 Daemon Manager service is stopping........................
The CW2000 Daemon Manager service was stopped successfully.
Removing data from databases...StandardDbRegistration .
ama Database initialization is completed.
StandardDbRegistration .
itemInv Database initialization is completed.
StandardDbRegistration .
itemFh Database initialization is completed.
StandardDbRegistration .
itemEpm Database initialization is completed.
StandardDbRegistration .
cmf Database initialization is completed.
Copyright (c) 2003 Cisco Systems Inc.
*************************** W A R N I N G ***************************
Running this utility will remove data inside ALL the databases in the
IP Telephony Monitor Application
Type YES if you still want to continue :(type YES)
The CW2000 Daemon Manager service is stopping........................
The CW2000 Daemon Manager service was stopped successfully.
Removing data from databases...StandardDbRegistration .
ama Database initialization is completed.
StandardDbRegistration .
itemInv Database initialization is completed.
StandardDbRegistration .
itemFh Database initialization is completed.
StandardDbRegistration .
itemEpm Database initialization is completed.
StandardDbRegistration .
cmf Database initialization is completed.