Understanding Monitoring Messages

The format of the load balancer plug-in log messages is as follows.

• The start of an HTTP request contains the following information:

  RequestStart Sticky(New) <req-id> <time-stamp> <URL>

  The timestamp value is the number of milliseconds from January 1, 1970. For example:

  RequestStart New 123456 602983 http://austen.sun.com/Webapps-simple/servlet/Example1

• The end of an HTTP request contains the RequestExit message, as follows:

  RequestExit Sticky(New) <req-id> <time-stamp> <URL> <listener-id> <response-time> Failure-<reason for error>(incase of a failure)

  For example:

  RequestExit New 123456 603001 http://austen.sun.com/Webapps-simple/servlet/Example1 http://austen:2222 18

  ---

  Note –

  In the RequestExit message, response-time indicates the total request turnaround time in milliseconds, from the perspective of the load balancer plug-in.

  ---

• The list of unhealthy instances, as follows:

  UnhealthyInstances <cluster-id> <time-stamp> <listener-id>, <listener-id>...

  For example:

  UnhealthyInstances cluster1 701923 http://austen:2210, http://austen:3010

• A list of failed-over requests, as follows:

  FailedoverRequest <req-id> <time-stamp> <URL> <session-id> <failed-over-listener-id> <unhealthy-listener-id>

  For example:

  FailedoverRequest 239496 705623 http://austen.sun.com/Apps/servlet/SessionTest 16dfdac3c7e80a40 http://austen:4044 http://austen:4045