Tuesday, July 26, 2011

OSB Read Timeout and Connection Timeout, stuck threads

This morning the server was hanging (even sbconsole was not responding) and the automated tests were stuck since little after midnight. Maybe something has happened around midnight on that box.

Since I would much rather have a request fail than hanging forever, I have reviewed all the timeouts associated with my Business Services.

There are 2 parameters:

HTTP Transport Configuration:

Read Timeout (30s default)
"Enter the read timeout interval in seconds.
A zero (0) value indicates no timeout."


Connection Timeout (0=disabled by default)
"Enter the connection timeout interval in seconds. If the timeout expires before the connection can be established, Oracle Service Bus raises a connection error."


see here the Oracle OSB doc.

My threads were stuck waiting for a Response from a Web Service... I wonder why the "Read Timeout" didn't trigger a fault.

This was the complete stacktrace for the stuck thread:
(I see a similar problem reported here)

"[STUCK] ExecuteThread: '30' for queue: 'weblogic.kernel.Default (self-tuning)'" - Thread t@141
   java.lang.Thread.State: WAITING
 at java.lang.Object.wait(Native Method)
 - waiting on <6f34d9fb> (a java.lang.Object)
 at java.lang.Object.wait(Object.java:485)
 at com.bea.wli.sb.pipeline.PipelineContextImpl$SynchronousListener.waitForResponse(PipelineContextImpl.java:1569)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.dispatchSync(PipelineContextImpl.java:553)
 at stages.transform.runtime.WsCalloutRuntimeStep$WsCalloutDispatcher.dispatch(WsCalloutRuntimeStep.java:1391)
 at stages.transform.runtime.WsCalloutRuntimeStep.processMessage(WsCalloutRuntimeStep.java:236)
 at com.bea.wli.sb.pipeline.StatisticUpdaterRuntimeStep.processMessage(StatisticUpdaterRuntimeStep.java:41)
 at com.bea.wli.sb.stages.StageMetadataImpl$WrapperRuntimeStep.processMessage(StageMetadataImpl.java:346)
 at com.bea.wli.sb.pipeline.PipelineStage.processMessage(PipelineStage.java:84)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.execute(PipelineContextImpl.java:1055)
 at com.bea.wli.sb.pipeline.Pipeline.processMessage(Pipeline.java:141)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.execute(PipelineContextImpl.java:1055)
 at com.bea.wli.sb.pipeline.PipelineNode.doRequest(PipelineNode.java:55)
 at com.bea.wli.sb.pipeline.Node.processMessage(Node.java:67)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.execute(PipelineContextImpl.java:1055)
 at com.bea.wli.sb.pipeline.Router.processMessage(Router.java:214)
 at com.bea.wli.sb.pipeline.MessageProcessor.processRequest(MessageProcessor.java:96)
 at com.bea.wli.sb.pipeline.RouterManager$1.run(RouterManager.java:593)
 at com.bea.wli.sb.pipeline.RouterManager$1.run(RouterManager.java:591)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
 at com.bea.wli.sb.security.WLSSecurityContextService.runAs(WLSSecurityContextService.java:55)
 at com.bea.wli.sb.pipeline.RouterManager.processMessage(RouterManager.java:590)
 at com.bea.wli.sb.transports.TransportManagerImpl.receiveMessage(TransportManagerImpl.java:375)
 at com.bea.wli.sb.transports.local.LocalMessageContext$1.run(LocalMessageContext.java:179)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
 at weblogic.security.Security.runAs(Security.java:61)
 at com.bea.wli.sb.transports.local.LocalMessageContext.send(LocalMessageContext.java:174)
 at com.bea.wli.sb.transports.local.LocalTransportProvider.sendMessageAsync(LocalTransportProvider.java:322)
 at sun.reflect.GeneratedMethodAccessor655.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at com.bea.wli.sb.transports.Util$1.invoke(Util.java:83)
 at $Proxy106.sendMessageAsync(Unknown Source)
 at com.bea.wli.sb.transports.LoadBalanceFailoverListener.sendMessageAsync(LoadBalanceFailoverListener.java:148)
 at com.bea.wli.sb.transports.LoadBalanceFailoverListener.sendMessageToServiceAsync(LoadBalanceFailoverListener.java:603)
 at com.bea.wli.sb.transports.LoadBalanceFailoverListener.sendMessageToService(LoadBalanceFailoverListener.java:538)
 at com.bea.wli.sb.transports.TransportManagerImpl.sendMessageToService(TransportManagerImpl.java:558)
 at com.bea.wli.sb.transports.TransportManagerImpl.sendMessageAsync(TransportManagerImpl.java:426)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.doDispatch(PipelineContextImpl.java:670)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.dispatch(PipelineContextImpl.java:585)
 at stages.routing.runtime.DynamicRouteRuntimeStep.processMessage(DynamicRouteRuntimeStep.java:161)
 at com.bea.wli.sb.stages.StageMetadataImpl$WrapperRuntimeStep.processMessage(StageMetadataImpl.java:346)
 at com.bea.wli.sb.pipeline.RouteNode.doRequest(RouteNode.java:106)
 at com.bea.wli.sb.pipeline.Node.processMessage(Node.java:67)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.execute(PipelineContextImpl.java:1055)
 at com.bea.wli.sb.pipeline.Router.processMessage(Router.java:214)
 at com.bea.wli.sb.pipeline.MessageProcessor.processRequest(MessageProcessor.java:96)
 at com.bea.wli.sb.pipeline.RouterManager$1.run(RouterManager.java:593)
 at com.bea.wli.sb.pipeline.RouterManager$1.run(RouterManager.java:591)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
 at com.bea.wli.sb.security.WLSSecurityContextService.runAs(WLSSecurityContextService.java:55)
 at com.bea.wli.sb.pipeline.RouterManager.processMessage(RouterManager.java:590)
 at com.bea.wli.sb.transports.TransportManagerImpl.receiveMessage(TransportManagerImpl.java:375)
 at com.bea.wli.sb.transports.local.LocalMessageContext$1.run(LocalMessageContext.java:179)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
 at weblogic.security.Security.runAs(Security.java:61)
 at com.bea.wli.sb.transports.local.LocalMessageContext.send(LocalMessageContext.java:174)
 at com.bea.wli.sb.transports.local.LocalTransportProvider.sendMessageAsync(LocalTransportProvider.java:322)
 at sun.reflect.GeneratedMethodAccessor655.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at com.bea.wli.sb.transports.Util$1.invoke(Util.java:83)
 at $Proxy106.sendMessageAsync(Unknown Source)
 at com.bea.wli.sb.transports.LoadBalanceFailoverListener.sendMessageAsync(LoadBalanceFailoverListener.java:148)
 at com.bea.wli.sb.transports.LoadBalanceFailoverListener.sendMessageToServiceAsync(LoadBalanceFailoverListener.java:603)
 at com.bea.wli.sb.transports.LoadBalanceFailoverListener.sendMessageToService(LoadBalanceFailoverListener.java:538)
 at com.bea.wli.sb.transports.TransportManagerImpl.sendMessageToService(TransportManagerImpl.java:558)
 at com.bea.wli.sb.transports.TransportManagerImpl.sendMessageAsync(TransportManagerImpl.java:426)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.doDispatch(PipelineContextImpl.java:670)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.dispatch(PipelineContextImpl.java:585)
 at stages.routing.runtime.RouteRuntimeStep.processMessage(RouteRuntimeStep.java:128)
 at com.bea.wli.sb.stages.StageMetadataImpl$WrapperRuntimeStep.processMessage(StageMetadataImpl.java:346)
 at com.bea.wli.sb.pipeline.RouteNode.doRequest(RouteNode.java:106)
 at com.bea.wli.sb.pipeline.Node.processMessage(Node.java:67)
 at com.bea.wli.sb.pipeline.PipelineContextImpl.execute(PipelineContextImpl.java:1055)
 at com.bea.wli.sb.pipeline.Router.processMessage(Router.java:214)
 at com.bea.wli.sb.pipeline.MessageProcessor.processRequest(MessageProcessor.java:96)
 at com.bea.wli.sb.pipeline.RouterManager$1.run(RouterManager.java:593)
 at com.bea.wli.sb.pipeline.RouterManager$1.run(RouterManager.java:591)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
 at com.bea.wli.sb.security.WLSSecurityContextService.runAs(WLSSecurityContextService.java:55)
 at com.bea.wli.sb.pipeline.RouterManager.processMessage(RouterManager.java:590)
 at com.bea.wli.sb.transports.TransportManagerImpl.receiveMessage(TransportManagerImpl.java:375)
 at com.bea.wli.sb.transports.http.generic.RequestHelperBase.invokePipeline(RequestHelperBase.java:179)
 at com.bea.wli.sb.transports.http.wls.HttpTransportServlet$RequestHelperWLS.invokePipeline(HttpTransportServlet.java:227)
 at com.bea.wli.sb.transports.http.generic.RequestHelperBase$1.run(RequestHelperBase.java:154)
 at com.bea.wli.sb.transports.http.generic.RequestHelperBase$1.run(RequestHelperBase.java:152)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
 at com.bea.wli.sb.transports.http.generic.RequestHelperBase.securedInvoke(RequestHelperBase.java:151)
 at com.bea.wli.sb.transports.http.generic.RequestHelperBase.service(RequestHelperBase.java:107)
 at com.bea.wli.sb.transports.http.wls.HttpTransportServlet.service(HttpTransportServlet.java:129)
 at weblogic.servlet.FutureResponseServlet.service(FutureResponseServlet.java:24)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
 at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
 at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
 at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
 at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:183)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3717)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
 at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
 at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
 at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
 at weblogic.work.ExecuteThread.execute(ExecuteThread.java:207)
 at weblogic.work.ExecuteThread.run(ExecuteThread.java:176)



4 comments:

LeoLuz said...

Hi!

Any news about this issue?

We are facing a similar problem in our environment.

tks!
LeoLuz

Pierluigi Vernetto said...

not really, so far it has not happened again.... will keep my eyes open anyway! I think setting timeouts on Sockets would definitely help!

Subhashish Mishra said...

Hi,
We are facing the same issue. Did you guys find a solution for this issue.

Pierluigi Vernetto said...

nope... actually we had recently another stuck thread hung on a network I/O call, but there doesn't seem to be an easy way to set a socket timeout for all sockets open in a JVM.... much needed feature....