title: Apache httpd connection refused during stress test using jmeter
body: <p>Now, I do stress test using jemter in windows(jmeter.bat). </p>
  
  <pre><code>Number of Threads = 100
  Ramp-up period = 0 
  Loop count = 1000
  </code></pre>
  
  <p>But raise connection refused error in jmeter, after 20~30 seconds. 
  I can not find connection refused error in /usr/local/apache/logs/error.log or /usr/local/apache/logs/access.log. </p>
  
  <p>Test is HTTP GET, index.html("It's works")
  Apache MPM is worker and setting below:</p>
  
  <pre><code>&lt;IfModule mpm_worker_module&gt;
  StartServers            8
  MinSpareThreads         64
  MaxSpareThreads        1024 
  ThreadsPerChild         64
  MaxRequestWorkers       512
  MaxConnectionsPerChild   0
  </code></pre>
  
  <p></p>
  
  <p>jmeter problem? any apache setting problem?</p>
  
  <p>jmeter exception below:</p>
  
  <pre><code>org.apache.http.conn.HttpHostConnectException: Connection to https://checkout.teledit.com refused
  at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
  at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:294)
  at org.apache.jmeter.protocol.http.sampler.MeasuringConnectionManager$MeasuredConnection.open(MeasuringConnectionManager.java:107)
  at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:643)
  at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
  at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.executeRequest(HTTPHC4Impl.java:517)
  at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sample(HTTPHC4Impl.java:331)
  at org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:74)
  at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1146)
  at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1135)
  at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:434)
  at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:261)
  at java.lang.Thread.run(Unknown Source)
  
  Caused by: java.net.ConnectException: Connection timed out: connect
  at java.net.DualStackPlainSocketImpl.connect0(Native Method)
  at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
  at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
  at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
  at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
  at java.net.PlainSocketImpl.connect(Unknown Source)
  at java.net.SocksSocketImpl.connect(Unknown Source)
  at java.net.Socket.connect(Unknown Source)
  at sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
  at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:414)
  at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
  ... 14 more
  </code></pre>