Web Service request loop causes many TIME_WAIT Connections & "BindException:
Address already in use: connect"
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Key: AXIS2-2593
URL: https://issues.apache.org/jira/browse/AXIS2-2593
Project: Axis 2.0 (Axis2)
Issue Type: Bug
Affects Versions: 1.1.1, nightly
Environment: Windows XP, Tomcat, Axis2 nightly build (also encountered
in 1.1.1), JiBX 1.1.3, Microsoft Windows XP [Version 5.1.2600], 126 GB free
disk space, 1GB RAM.
Reporter: David Bueche
Priority: Critical
I am performing the following:
- Executing a tight loop calling a singel web service
- Using the same Stub over and over
- Creating the Stub with a custom ConfigurationContext (see below)
- Sending cleanup() to Stub after each message sent (although problem existed
even before cleanup() was added)
After approximately 4000 messages have been sent, an AxisFault is generated
caused by the following exception (see below for full stack trace):
java.net.BindException: Address already in use: connect
It appears that connections from the client to Axis on Tomcat sometimes (but
not always) remain in the TIME_WAIT state for several minutes. There are
1200-1500 TIME_WAIT connections open when the AxisFault is generated.
If I step through the web service messages in a debugger, the problem does not
appear to occur, as the system eventually releases the connections after a
minute or two.
Also, if I insert a System.gc() in the client code each time it sends a message
to the web service (the commented out line of code below), the AxisFault does
not occur. I have executed the loop over 60,000 times with the garbage
collection included without generating an AxisFault. There were only 400-700
connections in the TIME_WAIT state at a given time, but performance slowed down
to a crawl.
Here is the code I am using to create the Stub:
HttpConnectionManagerParams connectionManagerParams = new
HttpConnectionManagerParams();
connectionManagerParams.setTcpNoDelay(true);
connectionManagerParams.setStaleCheckingEnabled(true);
MultiThreadedHttpConnectionManager connectionManager = new
MultiThreadedHttpConnectionManager();
connectionManager.setParams(connectionManagerParams);
HttpClient httpClient = new HttpClient(connectionManager);
ConfigurationContext configurationContext =
ConfigurationContextFactory.createConfigurationContextFromFileSystem(null,
null);
configurationContext.setProperty(HTTPConstants.REUSE_HTTP_CLIENT,
Boolean.TRUE);
configurationContext.setProperty(HTTPConstants.CACHED_HTTP_CLIENT,
httpClient);
stub = new MyServiceStub(configurationContext, target);
boolean success = true;
while(success) {
success = stub.performService(records);
stub.cleanup();
// System.gc();
}
Here is the complete stack trace:
Exception in thread "main" org.apache.axis2.AxisFault: Address already
in use: connect
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:377)
at
org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:179)
at
org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:73)
at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:310)
at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:202)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:446)
at
org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:330)
at
org.apache.axis2.description.OutInAxisOperationClient.execute(OutInAxisOperation.java:294)
at
com.ws.service.MyServiceStub.performService(MyServiceStub.java:300)
at com.ws.client.MyClient.main(MyClient.java:88)
Caused by: java.net.BindException: Address already in use: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.commons.httpclient.protocol.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:139)
at
org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:124)
at
org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
at
org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
at
org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
at
org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:558)
at
org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:176)
... 8 more
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