Logging Overview

GridServer uses the java.util.logging package for its internal logging, to provide diagnostic messages to the console and to file. This section covers how to access these logs, and how to interface with the loggers.

The logger uses the following log levels, in order:

Level	Description
Severe	Indicates serious failures
Warning	Indicates potential problems
Info	Displays informational messages
Config	Displays static configuration messages
Fine	Provides tracing information
Finer	Indicates a fairly detailed tracing message
Finest	Indicates a highly detailed tracing message

Typically, the Info level is sufficient for most purposes and is best to use on a busy grid. In some cases, you might need to log at Fine level to diagnose certain issues. For example, you must set the log level to at least Fine to log JMX statistics.

Finer or Finest levels must not be used unless you are debugging a detailed issue and you are directed to do so by TIBCO support, as they might degrade performance and introduce unnecessary logging that can make it more difficult for diagnosing problems. If you must use Finest or Finer on the Manager, consider only increasing the component level.

The log format is: {timestamp} {level}: [{component}] {message}

Only messages that are at or above the current log level are logged.

Note	It’s considered unsafe to set all logging at a level below Info.

An example of a log message:

09/20/13 19:19:10.423 Info: [BrokerServicePlugin] Broker:Total:1