Analyzing TADDM log files with the Log Analyzer

Using the Log Analyzer, you can correlate multiple TADDM log files into a single view.

The TADDM log files can be combined in a single view, ordered by time stamp, to correlate the operation of the TADDM components. There are two ways to correlate log files:

  1. Simple - To correlate all imported log file, complete the following steps:
    1. In the Log Analyzer navigation tree view, right-click Logs.
    2. Click View All Logs.
  2. Advanced - To correlate a set of log files by creating a custom correlation, complete the following steps:
    1. In the Log Analzyer navigation tree view, right-click Correlations.
    2. Click New > Log Correlation.
    3. In the window that is displayed, type the name for the correlation.
    4. Add the log files that you want to include for the correlation.
    5. Click Finish.
    6. Refresh the navigation tree view.
    7. In the navigation tree view, right-click the correlation name you typed and click Open With > Log View.
After you create a view of the logs, you can organize the log data to isolate problems. The following list identifies some of the ways that you can organize the data:
  • Sort log records: For example, you can sort by time, component, and server name.
  • Highlight log records: For example, you can highlight all error events in red or show all events from a specific component in blue. Highlighting is similar to filtering, but instead of eliminating data from a view, you can highlight the relevant information within the full list of events.
  • Filtering log records: You can narrow the scope of a problem and the data shown based on filter criteria. Examples of filter criteria include time stamps, severity, component, and server.
  • Finding log records: You can search for specific information in a log file. For example, you can search to see events related to interaction with a specific server or user.

For more information about how to organize the data, in the Log Analyzer online help, search for the Analyzing log files topic. Filtering, Sorting, Finding, and Highlighting is a subheading in this topic.

In addition, there are some other topics in the online help that you might find useful:
  • When trying to correlate log files from multiple servers, the time clocks on those servers can be out-of-sync. This synchronization problem could be something simple, like different time zones, or more subtle, such as a clock being a few milliseconds off from another server's clock. The Log Analyzer imbeds a function to synchronize the time between multiple log files by allowing you to adjust the time stamps in a log file. For more information, refer to the topic titled Synchronizing time of log records for distributed applications in the Log Analyzer online help.
  • You can use symptom catalogs to quickly recognize known problems. The Log Analyzer provides a log analysis capability that allows it to recognize known problems that are defined in a knowledge database, called the 'symptom catalog'. IBM® provides a symptom catalog for known problems with several products, including TADDM. It also provides a way for you to capture and define your own symptom information. For more information, refer to the topic titled Synchronizing time of log records for distributed applications in the Log Analyzer online help.