Re: [Ejbca-develop] Stress testing for ejbca

[Tomas G. <to...@pr...>]

Hi,

We use this class in performance tests. We have not seen any issues with 
it so far.

Cheers,
Tomas

On 08/24/2013 01:43 AM, Jing Xu wrote:
> Hi everyone,
>
> I am developing a software testing tool to detect thread stress
> vulnerability of server application. And our tool detects the
> vulnerability on ejbca in following function in
> java.org.ejbca.util.PerformanceTest.TestInstance:
>
> public void run(){
>
> PerformanceTest.this.log.info
> <http://performancetest.this.log.info/>("Thread nr " + this.nr
> <http://this.nr/> + " started.");
>
>    while (true) {
>
>      try {
>
>        final long startTime=new Date().getTime();
>
>        Command failingCommand=null;
>
>        for (int i=0; failingCommand == null && i < this.commands.length;
> i++) {
>
>          if (this.maxWaitTime > 0) {
>
>            final int waitTime=(int)(this.maxWaitTime *
> PerformanceTest.this.random.nextFloat());
>
>            if (waitTime > 0) {
>
> synchronized (this) {
>
>                wait(waitTime);
>
>              }
>
>              this.statistic.addTime("Time waiting between jobs",waitTime);
>
>            }
>
>          }
>
>          final Command command=this.commands[i];
>
>          final JobRunner jobRunner=new JobRunner(command);
>
>          if (!jobRunner.execute()) {
>
>            failingCommand=command;
>
>          }
>
>
> this.statistic.addTime(command.getJobTimeDescription(),jobRunner.getTimeConsumed());
>
>        }
>
>        String sResult="Test in thread " + this.nr <http://this.nr/> + "
> completed ";
>
>        if (failingCommand == null) {
>
>          this.statistic.taskFinished();
>
>          sResult+="successfully";
>
>        }
>
>   else {
>
>          this.statistic.taskFailed();
>
>          sResult+="but failed when the command '" +
> failingCommand.getClass().getCanonicalName() + "' was executed";
>
>        }
>
>        sResult+=". The time it took was " + (new Date().getTime() -
> startTime) + " ms.";
>
>        if (failingCommand == null) {
>
> PerformanceTest.this.log.info
> <http://performancetest.this.log.info/>(sResult);
>
>        }
>
>   else {
>
>          PerformanceTest.this.log.error(sResult);
>
>        }
>
>      }
>
>   catch (    Throwable t) {
>
>        this.statistic.taskFailed();
>
>        PerformanceTest.this.log.error("Exeption in thread " + this.nr
> <http://this.nr/> + ".",t);
>
>      }
>
>    }
>
> }
>
> Is it possible that jobRunner.execute() will create unbounded number of
> threads? Thanks advanced for your help.
>
> Best,
> Jing
>
>
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