To Use Log Files to Report Metrics Information

1. Configure the broker’s metrics generation capability:

   1. Confirm imq.metrics.enabled=true

      Generation of metrics for logging is turned on by default.

   2. Set the metrics generation interval to a convenient number of seconds.

      imq.metrics.interval=interval

      This value can be set in the config.properties file or using the -metrics interval command line option when starting up the broker.

2. Confirm that the Logger gathers metrics information:

   imq.log.level=INFO

   This is the default value. This value can be set in the config.properties file or using the -loglevel level command line option when starting up the broker.

3. Confirm that the Logger is set to write metrics information to the log file:

   imq.log.file.output=INFO

   This is the default value. It can be set in the config.properties file.

4. Start up the broker.

   The following shows sample broker metrics output to the log file:

   [21/Jul/2004:11:21:18 PDT] Connections: 0 JVM Heap: 8323072 bytes (7226576 free) Threads: 0 (14-1010) In: 0 msgs (0bytes) 0 pkts (0 bytes) Out: 0 msgs (0bytes) 0 pkts (0 bytes) Rate In: 0 msgs/sec (0 bytes/sec) 0 pkts/sec (0 bytes/sec) Rate Out: 0 msgs/sec (0 bytes/sec) 0 pkts/sec (0 bytes/sec)

   For reference information about metrics data, see Chapter 20, Metrics Information Reference