wolverine my a écrit :
Hi!
When I test the ApacheDS with JMeter (simulating 1000 users), there
are some exceptions as shown below:
1169011310793,0,Thread Bind,800,javax.naming.CommunicationException:
localhost:10389 [Root exception is java.net.ConnectException:
Connection refused: connect],Thread Group 1-455,text,false,
What could be the possible cause of this exception?
Could it because of the it exceeded the maximum session?
Well, you migth exhaust the server capacity at this point. It depends on
how is your test designe d:
- do you have 1000 simltunaous users
- do they requests again as soon as they get the previous response
- are your jmeter clients on other machines
- which kind of requests do you use
Considering all those parameters, and considering that we dedicate a
limited number of thread to handle incoming requests, yes, you may have
reached this limit. However, this is something quite usual for a server
: http server might also reject connexion under very heavy load (ok, it
won't be with 1000 clients, but it also depends on what you are running
behind).
There is a maxThreads parameter in the server.xml file, you might want
to change its value to increase the number of threads handling the
incomming requests.
<beans>
...
<bean id="configuration"
class="org.apache.directory.server.configuration.MutableServerStartupConfiguration">
<property name="workingDirectory" value="example.com"/>
<property name="maxThreads" value="8"/> <------ change this value
if needed.
...
Emmanuel
