WebLogic 5.x Application Server Monitor

The SiteScope WebLogic 5.x Application Server Monitor allows you to monitor the statistics of a WebLogic Servers (versions 5.x) using SNMP. The error and warning thresholds for the monitor can be set on as many as ten WebLogic server statistics.

Usage Guidelines

Use the WebLogic 5.x Application Server Monitor to monitor the content of event logs and other data from WebLogic 5.x Server servers. You can monitor multiple parameters or counters with a single monitor instance. This allows you to watch server loading for performance, availability, and capacity planning. Create a separate WebLogic 5.x Application Server Monitor instance for each WebLogic 5.x Server server in your environment.

The following are several key requirements for using the WebLogic 5.x Application Server Monitor:

The WebLogic Server SNMP Agent must be running (StartSNMP.cmd) together with the WebLogic 5.x servers. The Weblogic server must NOT have any other vendor's implementation of SNMP installed.
Note: It is not possible to use any other SNMP agent; it must be the one provided with the Weblogic 5 server software. Consult the BEA WebLogic Web site for information about running the SNMP agent.

The following is an example command syntax used to start the SNMP agent. This example assumes that the WebLogic server and the SNMP agent are running on the same machine.

Note: This command must be entered as a single command line. The string is divided here to fit this page:

java -cp \weblogic\lib\weblogicaux.jar;\weblogic\classes weblogic.SNMPAgent -password password -serverURLs http://hostname
If the customer is running the Weblogic SNMP agent on a port other than the default port, you will need to know the port number and specify that port number as part of the Host Name entry below.
You need to know the index of the OID corresponding to the object you want to monitor. Several utilities are available to interact with the WebLogic SNMP agent. One is the snmpwalk utility. The following is an example command syntax to run snmpwalk
Note: This command must be entered as a single command line. The string is divided here to fit the page

java -cp \weblogic\lib\weblogicaux.jar;\weblogic\classes snmpwalk server_name .1.3.6.1.4.1.140.600.20

The snmp utility will return a listing of Object ID's that are accessible using the index you entered on the command line (in this example the index is .1.3.6.1.4.1.140.600.20. The listings would have the following format :

Object ID: .1.3.6.1.4.1.140.600.20.1.5.10.115.116.97.110.100.97.108.111.110.101.8.109.121.115.101.114.118.101.114

The default run schedule for this monitor is every 10 minutes, but you can change it to run more or less often using the Update every setting.

Completing the WebLogic 5.x Application Server Monitor Form

To display the WebLogic 5.x Application Server Monitor Form, either click the Edit link for an existing WebLogic 5.x Application Server Monitor in a monitor table, or click the add a Monitor link on a group's detail page and click the Add WebLogic 5.x Application Server Monitor link.

Complete the items on the WebLogic 5.x Application Server Monitor Form as follows. When the required items are complete, click the Add Monitor button.

Counters

Select the server performance parameters or counters you want to check with this monitor. The table list to the right of this item displays those currently selected for this monitor. Use the choose counters link to bring up the counters selection screen. Check or clear the check boxes on the choose counters screen to select between one to ten counters to monitor on this server. The performance parameters or counters available for the WebLogic 5.x Application Server Monitor include:

ServerState
ServerLoginEnable
ServerMaxHeapSpace
ServerHeapUsedPct
ServerQueueLength
ServerQueueThroughput
ServerNumEJBDeployment
ServerNumEJBBeansDeployed
ServerState
ServerHeapUsedPct
ServerQueueLength
ServerQueueThroughput
ListenPort
ListenAdminOK
ListenState
CPType
CPIndex

Host Name

Enter the host name or IP address of the WebLogic 5.x Server Server server you want to monitor. If the WebLogic SNMP agent is configured to answer on a port number other than the default port, include the port number as part of the host name entered here. For example, 123.45.67.250:700.

Index

Enter the index of the SNMP object you want to check with this monitor. For WebLogic 5.x Servers, the index value can NOT be zero. The following explains more about working with WebLogic SNMP OIDs.

The WebLogic snmpwalk utility can be used to display a listing of OIDs available on a Web Logic 5.x server. This listing can be used to determine the index of the objects you want to monitor. An example of the command line used to run the utility (on the server where the WebLogic application is running) is as follows:

java -cp \weblogic\lib\weblogicaux.jar;\weblogic\classes snmpwalk <hostname> .1.3.6.1.4.1.140.600.20

The snmpwalk utility will output a list of OIDs. The OIDs generally have the format of those in the following examples:

Object ID: .1.3.6.1.4.1.140.600.20.1.5.10.115.116.97.110.100.97.108.111.110.101.8.109.121.115.101.114.118.101.114 STRING: standalone Object ID: .1.3.6.1.4.1.140.600.20.1.10.10.115.116.97.110.100.97.108.111.110.101.8.109.121.115.101.114.118.101.114 STRING: myserver Object ID: .1.3.6.1.4.1.140.600.20.1.15.10.115.116.97.110.100.97.108.111.110.101.8.109.121.115.101.114.118.101.114 STRING: hostname ...

The OID of the counters available for monitoring with the SiteScope WebLogic 5.x Monitor corresponds to the 1.3.6.1.4.1.140.600.20.1.nn portion of the OID. The remaining portion of the OID (10.115.116.97.110.100.97.108.111.110.101.8.109.121.115.101.114.118.101.114 in this example) is considered the index and must be entered in the Index box.

Note: The index for different WebLogic 5.x counters may be different from one OID to another. Be sure the index you enter for the monitor you are creating is the index for the object or objects you want to monitor. Multiple counters can be selected with this monitor, but you must insure that all selected counters use the same index.

Community

Enter the community name of the WebLogic 5.x Server Server you want to monitor. The public community is the default. You may need to consult with your network administrators about what community names are active in your network environment

Update every

Select how often the monitor should read the server statistics. The default interval is to run or update the monitor once every 10 minutes. Use the drop-down list to the right of the text box to specify another update interval in increments of seconds, minutes, hours, or days. The update interval must be 15 seconds or longer.

Title

Enter a title text for this monitor. This text is displayed in the group detail page, in report titles, and other places in the SiteScope interface. If you do not enter a title text, SiteScope will create a title based on the host, server, or URL being monitored.

Advanced Options

The Advanced Options section presents a number of ways to customize monitor behavior and display. Use this section to customize error and warning thresholds, disable the monitor, set monitor-to-monitor dependencies, customize display options, and enter other monitor specific settings required for special infrastructure environments. The options for this monitor type are described below. Complete the entries as needed and click the Add or Update button to save the settings.

Disable

Check this box to temporarily disable this monitor and any associated alerts. To enable the monitor again, clear the box.

Retry Delay

Enter the time, in seconds, that SiteScope should wait before retrying a request.

Timeout

Enter the total time, in seconds, that SiteScope should wait for a successful reply from the Weblogic server. If a reply is not received in the time indicated, the monitor returns a timeout error.

Verify Error

Check this box if you want SiteScope to automatically run this monitor again if it detects an error. When an error is detected, the monitor will immediately be scheduled to run again once.

Note: In order to change the run frequency of this monitor when an error is detected, use the Update every (on errors) option below.

Note: The status returned by the Verify Error run of the monitor will replace the status of the originally scheduled run that detected an error. This may cause the loss of important performance data if the data from the verify run is different than the initial error status.

Warning: Use of this option across many monitor instances may result in significant monitoring delays in the case that multiple monitors are rescheduled to verify errors at the same time.

Update Every (on error)

You use this option to set a new monitoring interval for monitors that have registered an error condition. For example, you may want SiteScope to monitor this item every 10 minutes normally, but as often as every 2 minutes if an error has been detected. Note that this increased scheduling will also affect the number of alerts generated by this monitor.

Schedule

By default, SiteScope monitors are enabled every day of the week. You may, however, schedule your monitors to run only on certain days or on a fixed schedule. Click the Edit schedule link to create or edit a monitor schedule. For more information about working with monitor schedules, see the section on Schedule Preferences for Monitoring.

Monitor Description

Enter additional information about this monitor. The Monitor Description can include HTML tags such as the <BR> <HR>, and <B> tags to control display format and style. The description will appear on the Monitor Detail page.

Report Description

Enter an optional description for this monitor that will make it easier to understand what the monitor does. For example, network traffic or main server response time. This description will be displayed on with each bar chart and graph in Management Reports and appended to the tool-tip displayed when you pass the mouse cursor over the status icon for this monitor on the monitor detail page.

Depends On

To make the running of this monitor dependent on the status of another monitor or monitor group, use the drop-down list to select the monitor on which this monitor is dependent. Select None to remove any dependency.

Depends Condition

If you choose to make the running of this monitor dependent on the status of another monitor, select the status condition that the other monitor or monitor group should have in order for the current monitor to run normally. The current monitor will be run normally as long as the monitor on which it depends reports the condition selected in this option.

List Order

By default, new monitors are listed last on the Monitor Detail page. You may use this drop-down list to choose a different placement for this monitor.

Setting Monitor Status Thresholds

SiteScope Application Monitors allow you to set multiple threshold conditions to determine the status reported by each monitor. The individual conditions are combined as logical OR relationships so that when one or more of the conditions (for example any of the conditions for Error if) are met the monitor status is set to the applicable condition. If multiple conditions are met for more than one status condition (such as conditions for both error and for warning), the status for the monitor is set to the highest valued condition. Thus a match of an error condition and a warning condition would be reported as an error status, error being the highest value, warning the next highest and good the lowest value.

Error if: Use one or more of the selection boxes in this item to define one or more error conditions for this monitor. Use the drop-down lists in these items to change error threshold(s) relative to the counters you have selected to check with this monitor. After choosing a counter or parameter, use the comparison operator drop-down list to specify an error threshold such as: >= (greater than or equal to), != (not equal to), or < (less than) and enter a comparison value in the box provided. Comparison values should be entered as whole numbers.
Warning if: Use one or more of the selection boxes in this item to define one or more warning conditions for this monitor. Use the drop-down lists in these items to change warning threshold(s) relative to the counters you have selected to check with this monitor. Set these values relative to those you set for the error threshold in the Error if item.
Good if: You can set this monitor to return a good status for certain conditions. You may define those conditions here. Complete this item as you would for the Error if and Warning if items.