Urgent help required "java.lang.Exception: Connection reset"

Hi Everyone,
I am getting error message when I access cluster database from grid console.
Error      java.lang.Exception: Connection reset
I am unable to create jobs or do other admin stuff on the database, I have searched alot , restarted the repository database, restarted the emgc components, even the agents but of no use. The agent status showing OK as under.
Oracle Enterprise Manager 10g Release 3 Grid Control 10.2.0.3.0.
Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
Agent Version : 10.2.0.3.0
OMS Version : 10.2.0.3.0
Protocol Version : 10.2.0.2.0
Agent Home : /app/oracle/agent/agent10g/rac2.tawaf
Agent binaries : /app/oracle/agent/agent10g
Agent Process ID : 19646
Parent Process ID : 19629
Agent URL : https://rac2.tawaf:3872/emd/main
Repository URL : https://tawafapp.tawaf:1159/em/upload
Started at : 2009-04-02 11:26:10
Started by user : oracle
Last Reload : 2009-04-02 11:26:10
Last successful upload : 2009-04-02 12:27:42
Total Megabytes of XML files uploaded so far : 3.48
Number of XML files pending upload : 0
Size of XML files pending upload(MB) : 0.00
Available disk space on upload filesystem : 86.22%
Last successful heartbeat to OMS : 2009-04-02 12:30:20
Agent is Running and Ready
The error reported in emoms.log is as under.
2009-04-02 12:37:25,073 [MetricCollector:RACHOMETAB_THREAD600:60] ERROR rt.RacMetricCollectorTarget _getAllData.184 - oracle.sysman.emSDK.emd.comm.CommException: Connection reset
oracle.sysman.emSDK.emd.comm.CommException: Connection reset
at oracle.sysman.emSDK.emd.comm.EMDClient.getResponseForRequest(EMDClient.java:1543)
at oracle.sysman.emSDK.emd.comm.EMDClient.getMetrics(EMDClient.java:915)
at oracle.sysman.emo.rac.perform.metric.rt.RacHomeTab._getAllData(RacHomeTab.java:180)
at oracle.sysman.emo.rac.perform.metric.rt.RacHomeTab.getData(RacHomeTab.java:91)
at oracle.sysman.emo.perf.metric.eng.MetricCached.collectCachedData(MetricCached.java:404)
at oracle.sysman.emo.perf.metric.eng.MetricCollectorThread._collectCachedData(MetricCollectorThread.java:596)
at oracle.sysman.emo.perf.metric.eng.MetricCollectorThread.run(MetricCollectorThread.java:320)
at java.lang.Thread.run(Thread.java:534)
can anyone help me as its very urgent for me to clear this error.
thanks

this error is also reported against the cluster database.
     Thread: SeverityLoad https://rac2.tawaf:3872/emd/main java.sql.SQLException: ORA-20613: Severity for unknown target. (target guid = 1938FC9C72DDAC01E0C0F268FFC5F6AD) ORA-06512: at "SYSMAN.EM_VIOLATION_CHECKS", line 174 ORA-04088: error during execution of trigger 'SYSMAN.EM_VIOLATION_CHECKS' Error occured at line : 43, File name:Severity

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         at com.sapportals.wcm.repository.manager.cm.persistence.DBContentInputStream.<init>(DBContentInputStream.java:50)
         at com.sapportals.wcm.repository.manager.cm.persistence.BasicPersistenceDB.selectDocumentContent(BasicPersistenceDB.java:1627)
         at com.sapportals.wcm.repository.manager.cm.persistence.commonjdbc.DBContent.getInputStream(DBContent.java:114)
         at com.sapportals.wcm.repository.manager.cm.persistence.commonjdbc.DBContent.getInputStream(DBContent.java:95)
         at com.sapportals.wcm.repository.ContentImpl$ContentWithPrefetchedInputStream.<init>(ContentImpl.java:402)
         at com.sapportals.wcm.repository.ContentImpl.initContent(ContentImpl.java:360)
         at com.sapportals.wcm.repository.ContentImpl.getInputStream(ContentImpl.java:111)
         at com.sapportals.wcm.repository.ContentImpl.getInputStream(ContentImpl.java:132)
         at com.sap.nw.wpc.core.utils.Utils.getContentAsString(Utils.java:197)
         at com.sap.nw.wpc.core.utils.Utils.getContentAsString(Utils.java:133)
         at com.sap.nw.wpc.runtime.component.HtmlContainerComponent.doContent(HtmlContainerComponent.java:49)
         at com.sapportals.portal.prt.component.AbstractPortalComponent.serviceDeprecated(AbstractPortalComponent.java:209)
         at com.sapportals.portal.prt.component.AbstractPortalComponent.service(AbstractPortalComponent.java:114)
         at com.sap.nw.wpc.runtime.AbstractDisplayComponent.service(AbstractDisplayComponent.java:110)
         at com.sapportals.portal.prt.component.CachablePortalComponent.service(CachablePortalComponent.java:273)
         at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
         at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
         at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)
         at com.sapportals.portal.prt.core.async.AsyncPortalComponentResponse.include(AsyncPortalComponentResponse.java:355)
         at com.sapportals.portal.prt.core.async.AsyncPortalComponentResponse.include(AsyncPortalComponentResponse.java:310)
         at com.sap.nw.wpc.runtime.AbstractContainerComponent.doContent(AbstractContainerComponent.java:88)
         at com.sapportals.portal.prt.component.AbstractPortalComponent.serviceDeprecated(AbstractPortalComponent.java:209)
         at com.sapportals.portal.prt.component.AbstractPortalComponent.service(AbstractPortalComponent.java:114)
         at com.sap.nw.wpc.runtime.AbstractDisplayComponent.service(AbstractDisplayComponent.java:110)
         at com.sapportals.portal.prt.component.CachablePortalComponent.service(CachablePortalComponent.java:273)
         at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
         at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
         at com.sapportals.portal.prt.core.async.AsyncIncludeRunnable$1$DoDispatchRequest.run(AsyncIncludeRunnable.java:375)
         at java.security.AccessController.doPrivileged(AccessController.java:242)
         at com.sapportals.portal.prt.core.async.AsyncIncludeRunnable.run(AsyncIncludeRunnable.java:388)
         at com.sapportals.portal.prt.core.async.ThreadContextRunnable.run(ThreadContextRunnable.java:164)
         at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:729)
         at java.lang.Thread.run(Thread.java:761)
    Category :
    Application :
    Thread : Thread[Finalizer thread,5,system]
    Message ID : 001125C5799C002800000074000810EA000469663D842363
    Source Name : com.sapportals.wcm.util.jdbc.connectionpool.JDBCConnectionWrapper
    Argument Objs :
    Arguments :
    Dsr Component : n/a
    Dsr Transaction : 1288b8603b8611dea7f7001125c5799c
    Dsr User :
    Indent : 0
    Level : 0
    Message Code :
    Message Type : 0
    Relatives :
    Resource Bundlename :
    Session : 0
    Source : com.sapportals.wcm.util.jdbc.connectionpool.JDBCConnectionWrapper
    ThreadObject : Thread[Finalizer thread,5,system]
    Transaction :
    User : Guest
    regards
    chris

    Hi Christian,
    The background is a small bug in com.sap.nw.wpc.core.utils.Utils.getContentAsString where getInputStream is called on a KM resource (the correct forum for this question would have been portal-km), without closing the InputStream afterwards. Behind the scenes, getInputStream opens a JDBC connection which won't be closed afterwards.
    So, if this still happens, it would be the best to open an OSS message to report this bug to SAP so that this can be fixed in the web page composer implementation. But on the other hand, this is now more than one year old - maybe this is already fixed. I cannot check, as I don't use WPC at the moment.
    Best regards
    Detlev

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  • Java.lang.Exception: Received unexpected response text :EMDAEMON:HTTP/1.1

    Hi all,
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    The emoms.trc:
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    2007-06-12 06:57:36,522 [MetricCollector:HOMETAB_THREAD600:60] ERROR rt.DbMetricCollectorTarget _getAllData.328 - oracle.sysman.emSDK.emd.comm.CommException: Received unexpected response text :
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    at oracle.sysman.emSDK.emd.comm.EMDClient.getResponseForRequest_(EMDClient.java:1402)
    at oracle.sysman.emSDK.emd.comm.EMDClient.getResponseForRequest(EMDClient.java:1196)
    at oracle.sysman.emSDK.emd.comm.EMDClient.getMetrics(EMDClient.java:637)
    at oracle.sysman.emo.perf.metric.rt.DbHomeTab._getAllData(DbHomeTab.java:324)
    at oracle.sysman.emo.perf.metric.rt.DbHomeTab.getData(DbHomeTab.java:139)
    at oracle.sysman.emo.perf.metric.eng.MetricCached.collectCachedData(MetricCached.java:402)
    at oracle.sysman.emo.perf.metric.eng.MetricCollectorThread._collectCachedData(MetricCollectorThread.java:596)
    at oracle.sysman.emo.perf.metric.eng.MetricCollectorThread.run(MetricCollectorThread.java:320)
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    oracle.sysman.emSDK.emd.comm.CommException: IOException in sending Request :: Connection refused
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    at oracle.sysman.emSDK.emd.comm.EMDClient.getResponseForRequest(EMDClient.java:1212)
    at oracle.sysman.emSDK.emd.comm.EMDClient.getMetrics(EMDClient.java:637)
    at oracle.sysman.emo.perf.metric.rt.DbHomeTab._getAllData(DbHomeTab.java:324)
    at oracle.sysman.emo.perf.metric.rt.DbHomeTab.getData(DbHomeTab.java:139)
    at oracle.sysman.emo.perf.metric.eng.MetricCached.collectCachedData(MetricCached.java:402)
    at oracle.sysman.emo.perf.metric.eng.MetricCollectorThread._collectCachedData(MetricCollectorThread.java:596)
    at oracle.sysman.emo.perf.metric.eng.MetricCollectorThread.run(MetricCollectorThread.java:320)
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    <html><head><title>EMDAEMON</title></head><body text="#000000" bgcolor="#FFFFC0"><H1>EMDAEMON</H1><H2> HTTP/1.1 404 , Not Found<br></h2></body></html>
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    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:330)
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    <html><head><title>EMDAEMON</title></head><body text="#000000" bgcolor="#FFFFC0"><H1>EMDAEMON</H1><H2> HTTP/1.1 404 , Not Found<br></h2></body></html>
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    at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:793)
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