Description of problem: In NETWORK test, 'ab -c 128 -k -n 256 $ipaddress/httptest.file' was used to exercise httpd on test machine. However, it will get time out and terminate NETWORK test in fast network. Tried test machine and server with such network condition. ie. above ab command got timeout. If during the execution of ab command, a ping flood command such as 'ping -c15000 -f -s65507' from test machine to server machine to increase network load caused the ab command finished normally without timeout. That proved the ab command used in NETWORK test was sensitive to network load, and probably was not suitable for certification purpose. Version-Release number of selected component (if applicable): rhr2-rhel4-1.0-10 How reproducible: Need network between test machine and test server lost no packet at least for 'ping -c1000 -f -s65507' to get above ab command timed out. Steps to Reproduce: 1.'dd if=/dev/zero of=/var/www/html/httptest.file bs=1M count=12' on the test machine 2. start httpd on test machine 3. on test server machine do 'ab -c 128 -k -n 256 $ipaddr/httptest.file' 4. above ab command will get timed out 5. repeat 3, and do 'ping -c15000 -f -s65507' from test machine to test server, ab command will finished normally without timeout Actual results: Expected results: Both 4 and 5 should all be finished without timeout. Additional info:
thanks. note that we've updated the ab parameters in the latest errata to avoid timeouts -- you can update over rhn.
Thanks. Couldn't fine related errata in rhn yet with serach of rhr2 and redhat-ready. Please advise.
It's on the hardware certification (final) subchannel of RHEL 4 RC.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2005-419.html