by, 04-27-2012 at 07:26 PM (613 Views)
JMeter reports warnings and errors to the jmeter.log file, as well as some information on the test run itself. Just occasionally there may be some errors that JMeter is unable to trap and log; these will appear on the command console. If a test is not behaving as you expect, please check the log file in case any errors have been reported (e.g. perhaps a syntax error in a function call).
Sampling errors (e.g. HTTP 404 - file not found) are not normally reported in the log file. Instead these are stored as attributes of the sample result. The status of a sample result can be seen in the various different Listeners.