On Mon, 2011-10-31 at 15:26 -0400, Bill Speirs wrote:
> I'm having an issue with the NIO Reactor. I'm getting the following exception:
>
> org.apache.http.nio.reactor.IOReactorException: Failure accepting connection
> at
> org.apache.http.impl.nio.reactor.DefaultListeningIOReactor.processEvent(DefaultListeningIOReactor.java:169)
> at
> org.apache.http.impl.nio.reactor.DefaultListeningIOReactor.processEvents(DefaultListeningIOReactor.java:149)
> at
> org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:370)
> at my code where I call execute()
> at java.lang.Thread.run(Thread.java:662)
> Caused by: java.io.IOException: Too many open files
> at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
> at
> sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:152)
> at
> org.apache.http.impl.nio.reactor.DefaultListeningIOReactor.processEvent(DefaultListeningIOReactor.java:165)
> ... 4 more
>
Bill
The NIO reactor is not necessarily the culprit. Connection descriptors
may be leaking elsewhere.
> This code does some complex things including opening two connection
> (via HTTP Client) to other services. I believe that I'm correctly
> cleaning up those connections by getting the entity in the response to
> both, and calling close on the stream.
>
> // first connection to another service
> InputStream is = response.getEntity().getContent();
>
> // do stuff with is
>
> is.close();
>
>
> // second connection to another service
>
> HttpEntity entity = response.getEntity();
>
> if(entity != null) {
> // close this to release the connection
> entity.getContent().close();
> }
>
>
> That is all I need to do, correct? There isn't anything else to
> release the socket is there?
>
You should probably be releasing connection resources from a try-finally
clause. This would ensure that resources get correctly released in case
of an abnormal situation: non 2xx response, runtime exception, etc
HttpResponse response = httpclient.execute(httpget, context);
try {
// process response
} finally {
EntityUtils.consume(response.getEntity());
}
Oleg
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
