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From "Lokesh (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPASYNC-3) I/O reactor has been shut down (Example code is attached)
Date Fri, 22 Apr 2011 22:22:06 GMT
I/O reactor has been shut down (Example code is attached)
---------------------------------------------------------

                 Key: HTTPASYNC-3
                 URL: https://issues.apache.org/jira/browse/HTTPASYNC-3
             Project: HttpComponents HttpAsyncClient
          Issue Type: Bug
    Affects Versions: 4.0-alpha1
            Reporter: Lokesh
            Priority: Critical
             Fix For: 4.0-alpha2


here is an example code to use the HTTP AsyncClient and seeing an exception. Please also let
me know how to deal with this issue,


/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package httpanalysis.apache;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.http.HttpHost;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.nio.client.DefaultHttpAsyncClient;
import org.apache.http.impl.nio.conn.PoolingClientConnectionManager;
import org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor;
import org.apache.http.nio.client.HttpAsyncClient;
import org.apache.http.nio.conn.scheme.Scheme;
import org.apache.http.nio.conn.scheme.SchemeRegistry;
import org.apache.http.nio.reactor.ConnectingIOReactor;
import org.apache.http.nio.reactor.IOReactorException;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.CoreConnectionPNames;

/**
 *
 * @author lokesh
 */
public class HttpAnalysis {

    PoolingClientConnectionManager poolManager;
    HttpAsyncClient httpclient = null;
    private PoolingClientConnectionManager sessionManager;

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        HttpAnalysis analysis = new HttpAnalysis();
        analysis.process();
    }

    public HttpAnalysis() {
        try {
            BasicHttpParams basicHttpParams = new BasicHttpParams();
            basicHttpParams.setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 1);
            basicHttpParams.setParameter(CoreConnectionPNames.SO_TIMEOUT, 2);
            basicHttpParams.setParameter(CoreConnectionPNames.SOCKET_BUFFER_SIZE, 2 * 1024);
            basicHttpParams.setParameter(CoreConnectionPNames.STALE_CONNECTION_CHECK, false);
            basicHttpParams.setParameter(CoreConnectionPNames.SO_REUSEADDR, false);
            
            
            
            
            ConnectingIOReactor ioReactor = new DefaultConnectingIOReactor(2, basicHttpParams);
            SchemeRegistry schemeRegistry = new SchemeRegistry();
            schemeRegistry.register(new Scheme("http", 80, null));
            this.sessionManager = new PoolingClientConnectionManager(ioReactor, schemeRegistry,
5, TimeUnit.MINUTES);
            sessionManager.setTotalMax(50);
            sessionManager.setDefaultMaxPerHost(25);
            
            this.httpclient = new DefaultHttpAsyncClient(ioReactor, sessionManager,basicHttpParams);
        } catch (IOReactorException ex) {
            Logger.getLogger(HttpAnalysis.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    private void process() {        
        try {
            int numRequests = 10000;
            httpclient.start();
            long startTime = System.currentTimeMillis();
            final CountDownLatch countDownLatch = new CountDownLatch(numRequests);
            for (int i = 0; i < numRequests; i++) {
                HttpGet request = new HttpGet("http://hc.apache.org/");
                Future<HttpResponse> future = httpclient.execute(request, new HttpCallback(this,
countDownLatch));
                if(future == null){
                    countDownLatch.countDown();
                }
                System.out.println("Request number = " + i);      
                //sessionManager.closeExpiredConnections();
            }
            countDownLatch.await();
            System.out.println((System.currentTimeMillis() - startTime));
            System.exit(1);
        } catch (Exception ex) {
            Logger.getLogger(HttpAnalysis.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}


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