7.3. Change Broker Logging Time Resolution


The time stamp resolution of logging can be changed while the broker is running.

Procedure 7.1. Change Resolution Logging on a Running Broker

  1. Edit the file /etc/qpid/qpidd.conf and add the following:
    log-time=1
    log-enable=info+
    log-to-file=/var/lib/qpidd/771830.log
  2. Launch qpid-tool.
  3. Now that you are running qpid-tool, issue the following command:
    list broker
    You might have to do this a few times before receiving an answer. It can take a while to get all the info from the broker.
  4. When you see a response similar to this:
    114  14:03:39  -          amqp-broker
    Use the number (in this example "114") to refer to the broker.
  5. Issue the following command, substituting the appropriate number for your broker:
    call 114 setLogHiresTimestamp 1
  6. Now look at the log file /var/lib/qpidd/771830.log and verify that it has started using highres time stamps. You might need to do something to get the broker to log a few more lines, for example start another qpid-tool.
  7. To return the logging to the normal resolution, issue the following command in qpid-tool:
    call 114 setLogHiresTimestamp 0
  8. Now look at the logfile again, and verify that it has stopped using highres.
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