Hi,
For quite some time I've had the problem that whenever I try to
benchmark the server's performance with ApacheBench with the new,
internal connector of Restlet 2.1 (currently testing with 2.1-RC2) I
get a timeout. Here is a minimal program I used for testing:
import org.restlet.Component;
import org.restlet.data.MediaType;
import org.restlet.data.Protocol;
import org.restlet.representation.Representation;
import org.restlet.representation.StringRepresentation;
import org.restlet.resource.Get;
import org.restlet.resource.ServerResource;
public class Main
{
public static void main(String... args) throws Exception {
Component comp = new Component();
comp.getServers().add(Protocol.HTTP, 8182);
comp.getDefaultHost().attach("/test", TestResource.class);
comp.start();
}
public static class TestResource extends ServerResource
{
@Get
public Representation getText() {
return new StringRepresentation("test\n", MediaType.TEXT_PLAIN);
}
}
}
Calling "curl http://192.168.100.97:8182/test"; gives me the
expected result, but "ab -n 1 http://192.168.100.97:8182/test";
freezes for some time and finally gives up with the following error
message:
Benchmarking 192.168.100.97 (be patient)...apr_poll: The timeout specified has
expired (70007)
However, the request does show up in Restlet's log:
2012-01-26 11:25:15 192.168.100.170 - - 8182 GET
/test - 200 5 0 1 http://192.168.100.97:8182
curl/7.21.0 (x86_64-pc-linux-gnu) libcurl/7.21.0 OpenSSL/0.9.8o zlib/1.2.3.4
libidn/1.15 libssh2/1.2.6 -
2012-01-26 11:25:20 192.168.100.170 - - 8182 GET
/test - 200 5 0 2 http://192.168.100.97:8182
ApacheBench/2.3 -
I'm using Windows 7 x64. When I suspend the program during the
freeze in Eclipse, it shows the following stack trace of Restlet's
thread:
Thread [Restlet-2004273875] (Suspended)
WindowsSelectorImpl$SubSelector.poll0(long, int, int[], int[], int[],
long) line: not available [native method]
WindowsSelectorImpl$SubSelector.poll() line: not available
WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl$SubSelector)
line: not available
WindowsSelectorImpl.doSelect(long) line: not available
WindowsSelectorImpl(SelectorImpl).lockAndDoSelect(long) line: not
available
WindowsSelectorImpl(SelectorImpl).select(long) line: not available
ServerConnectionController(ConnectionController).selectKeys(long) line:
259
ServerConnectionController(ConnectionController).doRun(long) line: 150
ServerConnectionController(Controller).run() line: 155
Executors$RunnableAdapter<T>.call() line: not available
FutureTask$Sync.innerRun() line: not available
FutureTask<V>.run() line: not available
ThreadPoolExecutor$Worker.runTask(Runnable) line: not available
ThreadPoolExecutor$Worker.run() line: not available
Thread.run() line: not available
Sebastian
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