Here is the lookup code:
|
| properties.put("jnp.partitionName",
getSystemConfig().getBackendPartition());
| properties.put("jnp.discoveryGroup",
getSystemConfig().getBackendUdpGroup());
| try {
| this.backEndCtx = new InitialContext(properties);
| this.backEndCtx.lookup(jndiName);
| ......
|
Exception
javax.naming.CommunicationException: Receive timed out [Root exception is
java.net.SocketTimeoutException: Receive timed out]
....
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:437)
at
org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:381)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:451)
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.naming.CommunicationException: Receive timed out [Root
exception is java.net.SocketTimeoutException: Receive timed out]
at
org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1319)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1436)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:596)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:589)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at
com.intuit.engine.efp.efe.util.ServiceLocator.lookupBackEndJndi(ServiceLocator.java:469)
... 24 more
Caused by: java.net.SocketTimeoutException: Receive timed out
at java.net.PlainDatagramSocketImpl.receive0(Native Method)
at
java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136)
at java.net.DatagramSocket.receive(DatagramSocket.java:712)
at
org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1289)
... 29 more
We have a backend cluster and frontend cluster. So when request comes in
frontend cluster does above lookup on one of the beans. When backend cluster
comes back up and is completely operational, and at that point if I do a lookup
I get below exception. However, on next retry it succeeds. It happens
consistently. I don't understand why that should occur because I try to lookup
after backend is completely up and has starting processing requests.
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