Home » Fusion Middleware & Colab Suite » Weblogic & Application Server » Get "IOException in sending Request :: Connection refused" (OEM 10g, oracle 9.2.0.4.0, Linux red-hat Enterprise Linux ES release 3)
icon5.gif  Get "IOException in sending Request :: Connection refused" [message #292071] Mon, 07 January 2008 12:11 Go to next message
sputnick
Messages: 4
Registered: January 2008
Junior Member
Hi there. Smile

I have got some problems on going to "IAS web console" on :
http://host.com:1810 the output is :
"IOException in sending Request :: Connection refused".
Sometimes, that's working well, sometimes not.
I googled a couple of hours & I check this points :
- /etc/hosts seems to be ok
- nothing about "TZRegion" issue in the emdctl.trc log
- nothing about "server reached MaxClients setting, consider raising the MaxClients setting" issue in apache error_log

When I get this problem, if I execute the following command, "emctl start iasconsole" sometimes it works, sometimes not.

Any clue ? Confused
Re: Get "IOException in sending Request :: Connection refused" [message #292106 is a reply to message #292071] Mon, 07 January 2008 19:27 Go to previous messageGo to next message
ebrian
Messages: 2794
Registered: April 2006
Senior Member
Do you see any errors in the log/trace files in $ORACLE_HOME/sysman/log ?
Re: Get "IOException in sending Request :: Connection refused" [message #292318 is a reply to message #292106] Tue, 08 January 2008 09:26 Go to previous messageGo to next message
sputnick
Messages: 4
Registered: January 2008
Junior Member
Yes, I found in emias.log :
2008-01-08 16:08:43,304 [HttpRequestHandler-6208622] ERROR target.TargetsData getTargets.322 - Unable Get target list. Error: IOException in sending Request :: Connection refused
oracle.sysman.emSDK.emd.comm.CommException: IOException in sending Request :: Connection refused
        at oracle.sysman.emSDK.emd.comm.EMDClient.getResponseForRequest_(EMDClient.java:1162)
        at oracle.sysman.emSDK.emd.comm.EMDClient.getResponseForRequest(EMDClient.java:1074)
        at oracle.sysman.emSDK.emd.comm.EMDClient.getTargetInstances(EMDClient.java:366)
        at oracle.sysman.ias.target.TargetListObject.getSingleNodeModeTargets(TargetListObject.java:128)
        at oracle.sysman.ias.target.TargetListObject.<init>(TargetListObject.java:111)
        at oracle.sysman.ias.target.TargetsData.getTargets(TargetsData.java:170)
        at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at oracle.cabo.ui.data.provider.MethodDataProvider.getDataObject(Unknown Source)
        at oracle.cabo.ui.data.provider.TableDataProvider.getDataObject(Unknown Source)
        at oracle.cabo.ui.data.provider.CachingDataProvider.getDataObject(Unknown Source)
        at oracle.cabo.ui.data.provider.DataProviderStack.getDataObject(Unknown Source)
        at oracle.cabo.ui.LogicalNodeRenderingContext.getDataObject(Unknown Source)
        at oracle.cabo.ui.RootRenderingContext.getDataObject(Unknown Source)
        at oracle.cabo.ui.LogicalNodeRenderingContext.getDataObject(Unknown Source)
        at oracle.cabo.ui.RootRenderingContext.getDataObject(Unknown Source)
        at oracle.cabo.ui.data.DataBoundValue.getValue(Unknown Source)
        at oracle.cabo.ui.BaseUINode.getAttributeValueImpl(Unknown Source)
        at oracle.cabo.ui.BaseUINode.getAttributeValue(Unknown Source)
        at oracle.cabo.ui.laf.base.SwitcherRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.BorderLayoutRenderer.renderIndexedChildren(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.BorderLayoutRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.XhtmlLafRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.laf.base.DataScopeRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.UINodeProxy.render(Unknown Source)
        at oracle.cabo.servlet.ui.data.PageIncludeBoundValue$Node.render(Unknown Source)
        at oracle.cabo.ui.UINodeProxy.render(Unknown Source)
        at oracle.cabo.ui.UINodeProxy.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.laf.browser.HeaderRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.XhtmlLafRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.composite.ContextPoppingUINode$ContextPoppingRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.XhtmlLafRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.BorderLayoutRenderer.renderIndexedChildren(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.BorderLayoutRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.XhtmlLafRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.XhtmlLafRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.composite.UINodeRenderer.renderWithNode(Unknown Source)
        at oracle.cabo.ui.composite.UINodeRenderer.render(Unknown Source)
        at oracle.cabo.ui.laf.browser.PageLayoutRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.laf.base.DataScopeRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.BodyRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.DocumentRenderer.renderContent(Unknown Source)
        at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
        at oracle.cabo.ui.laf.xhtml.DocumentRenderer.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.ui.BaseUINode.render(Unknown Source)
        at oracle.cabo.servlet.ui.UINodePageRenderer.renderPage(Unknown Source)
        at oracle.cabo.servlet.AbstractPageBroker.renderPage(Unknown Source)
        at oracle.cabo.servlet.PageBrokerHandler.handleRequest(Unknown Source)
        at oracle.cabo.servlet.UIXServlet.doGet(Unknown Source)
        at oracle.sysman.emSDK.svlt.EMServlet.doGet(EMServlet.java:313)
        at oracle.sysman.eml.app.Console.doGet(Console.java:152)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:778)
        at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
        at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:790)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
        at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
        at java.lang.Thread.run(Thread.java:534)



I found a good web page talking about this problem : http://www.lifeaftercoffee.com/2006/01/24/resecuring-oracle-application-server-control/
seems that's a SSL certificate issue.
I regenerated those by :
 emctl stop iasconsole
 emctl secure em
 emctl start iasconsole

& after the OEM works properly. But after a while the problem comes again.

The browser display :
"An error was encountered while loading page. There was a communication problem contacting the agent. This may be a transient network problem. There was a communication problem fetching monitoring data. This may be a transient network problem"

Re: Get "IOException in sending Request :: Connection refused" [message #293240 is a reply to message #292071] Fri, 11 January 2008 05:44 Go to previous messageGo to next message
sputnick
Messages: 4
Registered: January 2008
Junior Member
Typing the followings commands :
 emctl stop iasconsole
 emctl secure em
 emctl start iasconsole


solve my problem, but I needed to do it twice.

See ya !
Re: Get "IOException in sending Request :: Connection refused" [message #293346 is a reply to message #293240] Fri, 11 January 2008 13:48 Go to previous messageGo to next message
ebrian
Messages: 2794
Registered: April 2006
Senior Member
Thanks for the update. This may help someone else in the future.
Re: Get "IOException in sending Request :: Connection refused" [message #293354 is a reply to message #293346] Fri, 11 January 2008 14:19 Go to previous message
sputnick
Messages: 4
Registered: January 2008
Junior Member
Surprised

yes; that's my goal.

++
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