It means that the driver was unable to scrape an Event ID from the HomePage which itself suggests that the HomePage wasn't rendered correctly. What version of Ruby? What version of Rails? What OS? Is there anything in the logs? If not and you are running in production you might want to run in development mode and run a smaill test and observe what happens when EventDetail fails.

We still only support Ruby 1.8.7 and Rails 2.3.5



On Wed, Dec 22, 2010 at 4:19 AM, Sahan Gamage <> wrote:
Hi all,

I configured faban/olio to run a performance test with Ruby version of Olio.

When I run the performance test I get this warning (and the
IOException) in the faban Run Log:

UIDriverAgent[0].1.doEventDetail: In event detail and select event is null


org.apache.olio.workload.driver.UIDriver        doEventDetail   656
sun.reflect.GeneratedMethodAccessor6    invoke
sun.reflect.DelegatingMethodAccessorImpl        invoke  25
java.lang.reflect.Method        invoke  597
com.sun.faban.driver.engine.TimeThread  doRun   169
com.sun.faban.driver.engine.AgentThread run     202

Once the test is completed I see that lot of (39 out of 91)
"EventDetail" operations are failed  (this is a small test run - so
the numbers are small)

What might be the cause of this problem ?
How does this affect the results, in the sense of throughput and response time ?

Thanks in advance