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Foglight for Infrastructure 7.3.0 - User Guide

Using Foglight for Infrastructure Monitoring log files with Foglight Log Monitor Monitoring IBM PowerVM environments
Before you begin Managing PowerVM HMC agents Monitoring your PowerVM environment
Advanced system configuration and troubleshooting Reference
Foglight for Infrastructure views Foglight Log Monitor views Rules Metrics
Appendix: Building regular expressions in Foglight

Monitoring log files with Foglight Log Monitor

Foglight for Infrastructure relies on the File Log Monitor and Windows Event Log Monitor agents to collect data. These agents collect desired information from selected logs. A log file consists of one or more entries, or log records. Depending on the format of a monitored log file a log record can span multiple lines. The collected information is visualized on the Log Monitor dashboard.

Start by ensuring that Foglight for Infrastructure is installed on the Management Server, and that the agent package is deployed. For installation instructions, see the Foglight for Infrastructure Release Notes.

Next, configure the File Log Monitor and Windows Event Log Monitor agents for data collection. For more information, see Configuring monitoring agents, Configuring agent properties, and Configuring connections to remote Windows platforms.

When your monitoring agent instances are configured and are collecting data, navigate to the Log Monitor dashboard. This dashboard allows you to look at individual log records, and observe their growth rate over the selected time range. For more information, see Investigating log records.

Configuring monitoring agents

Foglight for Infrastructure uses Quest File Log Monitor Agent and Quest Windows Log Monitor Agent instances to collect information from monitored hosts. When Foglight for Infrastructure is installed on the Management Server and the Host Agents package is deployed to a desired FoglightAgent Manager host, you can create these agents and configure them for data collection.

While the Quest File Log Monitor Agent collects information from selected text files, Quest Windows Event Log Monitor Agent collects information from Windows Event Log files. Both agents can look for the text patterns you specify in the monitored logs.

To create an agent instance, activate it, and start its data collection, use the appropriate wizard (Create FileLogMonitorAgent or Create WindowsEventLogMonitorAgent), accessible from the Log Monitor dashboard.

To create a monitoring agent instance, activate it, and start its data collection:
1
Log in to the Foglight browser interface.
2
On the navigation panel, under Dashboards, click Log Monitor.
•
To create a Quest File Log Monitor Agent instance, on the Log Monitor dashboard, in the top-right corner, click File Log Monitor to launch the Create FileLogMonitorAgent wizard.
•
To create a Quest Windows Event Log Monitor Agent instance, on the Log Monitor dashboard, in the top-right corner, click Windows Event Log Monitor to launch the Create WindowsEventLogMonitorAgent wizard.
3
Select the host where you want to run the agent instance, and specify the agent name.
a
On the Agent Manager and Agent Name page in the wizard, click Agent Manager, and from the list that appears, select a host running an Agent Manager instance that you want to use to manage the agent instance that you are about to create.
b
Specify the name you want to assign to this agent instance. In the Agent Name box, type the agent name. Optionally, select the Generate Name check box to have the wizard generate the name automatically.
c
Click Next.
Quest File Log Monitor and Windows Event Log Monitor agents each come with a different set of agent properties, so the contents of this page are different, reflecting the type of the agent instance that you are creating.
File Log Monitor Agent properties
Windows Event Log Monitor Agent properties
4
Configure the agent properties, as required.
For more information about specific agent properties, see the following:
 
File Log Monitor Agent properties
•
Monitored Hosts
•
File Formats
•
Log Files
•
Data Collection Scheduler
Windows Event Log Monitor Agent properties
•
Monitored Hosts
•
Event Logs
•
Data Collection Scheduler
a
To view or edit a property, click View on the right of the list property name.
In the dialog box that appears, click Edit, and make changes to the existing entries, or add new ones, as required.
b
Some columns support regular expressions. To test a regular expression, click RegEx Tester.
 
* 
TIP: The agent supports PCRE (Perl Compatible Regular Expressions). For details about the PCRE syntax, visit http://perldoc.perl.org/perlre.html.
The Regular Expression Tester Dialog box allows you to write a regular expression, and test it against a text sample. Simply type a regular expression in the Test Regular Expression box, copy the text sample to the Test Source area, and click Match. The Test Result area displays the result of your regular expression.
To close the Regular Expression Tester Dialog box, click Cancel.
c
To save your changes to the list, in the list dialog box, click Save. Click Cancel to close it.
d
On the Agent Properties page, click Next.
The wizard checks whether the selected Agent Manager has any credentials configured for the hosts whose files you want to monitor. If it finds the credentials that grant the Agent Manager permissions to access the monitored hosts, this is indicated on the Credential Verification page.
5
Review the information on the Credential Verification page, and make any changes, if required.
•
If the page indicates that you have a valid set of credentials in place, you do not need to make any changes. This is typically the case if the hosts whose files you are about to start monitoring are already monitored by other Foglight for Infrastructure agents (a WindowsAgent or a UnixAgent).
•
If the page indicates that the Agent Manager does not have the credentials needed to access the monitored hosts, click Manage Credentials, and create a new credential, as required. For more information, see “Controlling System Access with Credentials” in the Administration and Configuration Help.
Click Next.
The Summary page reflects the newly configured settings, including agent properties. Because File Log Monitor and Windows Event Log Monitor agents each come with a different set of agent properties, the contents of this page are different, reflecting the type of the agent instance that you are creating.
6
Review the information on the Summary page, and click Finish to start collecting data.

Investigating log records

The Log Monitor dashboard displays the amount of log records over the monitored time range, lists the monitored log records, along with individual record details, such as its source, message, and severity, among others. Use this dashboard on a daily basis to review the monitored log records and identify potential signs that can lead to performance bottlenecks. For example, a significant increase in the number of log records can help you predict and prevent potential system-level issues.

To access this dashboard, from the navigation panel, choose Dashboards > Log Monitor.

Start by choosing the host containing the log files whose records you want to review, using the File Selector view. From here, for file logs, you can select the directory and the log file name.

For Windows Event Logs, select Event Log Files, and choose the name of the Windows Event Log (for example, Application).

 
* 
NOTE: Log names are specified in the Windows Event Log Monitor agent properties. For more information, see Event Logs.

For complete information about the data appearing in these views, see Foglight Log Monitor views.

Configuring agent properties

The File Log Monitor and Windows Event Log Monitor agents collect data from log files and send it to the Management Server.

The monitoring agents look for specific records given a text pattern in the monitored log files. They support regular expressions, which allows you to search for desired text patterns. The agents support PCRE (Perl Compatible Regular Expressions). For details about the PCRE syntax, visit http://perldoc.perl.org/perlre.html.

To monitor log records on a host, an agent establishes an SSH connection to Unix hosts, or a WMI or WinRM connection to Windows® hosts. Once this connection is in place, an agent executable is uploaded to the remote host (into %TEMP% on Windows and /tmp on UNIX®). The name of the executable name is unique to the agent instance. The executable then starts locating the monitored log files on the host and extracts the desired records, as specified in the agent properties. The agent sends back the extracted records to the agent for processing. The agent keeps track of the current location in all of the scanned log files so that the same information is only scanned once.

The monitoring agents use the same set of credentials as the other Foglight for Infrastructure agents, and the same credential purposes. For more information, see the Using Foglight for Infrastructure.

When an agent connects to Foglight, it is provided with sets of properties that it uses to configure its correct running state. The File Log Monitor and Windows Event Log Monitor agents are provided with list properties. List properties can be shared amongst multiple agent instances. Any changes you make to a list property affects all agent instances that are associated with that list.

Default versions of these properties are installed with Foglight for Infrastructure, and configured for your agent instances when you run the configuration wizards. If you need to make changes to any list properties after configuring your monitoring agents, you can do so (see Configuring File Log Monitor agent properties and Configuring Windows Event Log Monitor agent properties). However, keep in mind that any changes you make to a list property can affect other agent instances. For more information about LogMonitor remote monitoring, see Configuring connections to remote Windows platforms.

For complete information about working with agent properties, see the Administration and Configuration Help.

To configure agent properties:
1
Log in to the Foglight browser interface.
2
Ensure that the navigation panel is open.
To open the navigation panel, click the right-facing arrow on the left.
3
Open the Agent Status dashboard and navigate to the agent properties.
a
On the navigation panel, under Dashboards, select Administration > Agents > Agent Status.
 
* 
IMPORTANT: Another way of editing agent properties is through the Agent Properties dashboard. The properties you specify on this dashboard apply to all instances of the selected agent type, excluding any of the existing agents. To be certain that you are editing the properties of a particular agent instance and prevent overwriting of properties of another agent instance, use the Agent Status dashboard instead of the Agent Properties dashboard.
b
On the Agent Status dashboard, select the instance of the File Log Monitor or Windows Event Log Monitor agent whose properties you want to modify and click Edit Properties.
c
Indicate that you want to edit the properties of the selected agent instance.
A list of agent properties appears in the display area.
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