WebLogicSession and X-WebLogic-Cluster-Hash cookies

          Hello, apologies up front if this has been posted before, I haven't
          been able to
          find any reference to it yet. First, how do I decode the
          WebLogicSession cookie
          between the HttpClusterSerlvet and the HTTP client to extract the IPs of the
          primary/backup cluster servers that have replicated my HTTP session?
          Second,
          how is the translation done between the WebLogicSession cookie
          (proxy<->client)
          and the X-WebLogic-Cluster-Hash (proxy<->cluster)?
          Thanks in advance for any responses,
          -Steven Vaughan
          

I'm not exactly sure what you are asking. Are you trying to configure a
          hardware load balancer or something like that in front of the proxy?
          If you take a look at the cookie information (you can do so online by using
          safe cookies at anonymizer.com for example) you will see the IP addresses
          embedded in the cookie data. Do you need to know exactly what the
          information/offsets there are in that data? Could you explain what you are
          trying to accomplish?
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com
          +1.617.623.5782
          WebLogic Consulting Available
          "Steven Vaughan" <[email protected]> wrote in message
          news:[email protected]..
          >
          > Hello, apologies up front if this has been posted before, I haven't
          > been able to
          > find any reference to it yet. First, how do I decode the
          > WebLogicSession cookie
          > between the HttpClusterSerlvet and the HTTP client to extract the IPs of
          the
          > primary/backup cluster servers that have replicated my HTTP session?
          > Second,
          > how is the translation done between the WebLogicSession cookie
          > (proxy<->client)
          > and the X-WebLogic-Cluster-Hash (proxy<->cluster)?
          >
          > Thanks in advance for any responses,
          > -Steven Vaughan
          >
          

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    2007-11-07 10:12:37.508 Oracle Coherence GE 3.3.1/389p1 <Info> (thread=Cluster, member=n/a): Created a new cluster with Member(Id=1, Timestamp=2007-11-07 10:12:33.323, Address=10.5.176.86:8088, MachineId=48982, Edition=Grid Edition, Mode=Development, CpuCount=4, SocketCount=2) UID=0x0A05B056000001161AAB782BBF561F98
    2007-11-07 10:12:37.736 Oracle Coherence GE 3.3.1/389p1 <D5> (thread=Invocation:Management, member=1): Service Management joined the cluster with senior service member 1
    2007-11-07 10:12:38.168 Oracle Coherence GE 3.3.1/389p1 <D5> (thread=DistributedCache, member=1): Service DistributedCache joined the cluster with senior service member 1
    <Nov 7, 2007 10:12:38 AM EST> <Info> <HTTP> <BEA-101047> <[ServletContext(id=259640596,name=clusterqa,context-path=)] xslProcessor: init>
    But trying to start the second weblogic member server, the startup process is stucked after tangosol cache initialization and the second weblogic member server never up running. Please see following messages :
    <Nov 7, 2007 9:49:38 AM EST> <Info> <HTTP> <BEA-101047> <[ServletContext(id=153019550,name=clusterqa,context-path=)] initDSNames: init>
    <Nov 7, 2007 9:49:42 AM EST> <Info> <HTTP> <BEA-101047> <[ServletContext(id=153019550,name=clusterqa,context-path=)] initObjects: init>
    2007-11-07 09:49:43.156 Oracle Coherence 3.3.1/389p1 <Info> (thread=Main Thread, member=n/a): Loaded operational configuration from resource "zip:/home/server/clusterqa/wls81/DOCVIEW/docqa2/.wlnotdelete/extract/docqa2_DOC_clusterqa/jarfiles/WEB-INF/lib/coherence.jar!/tangosol-coherence.xml"
    2007-11-07 09:49:43.188 Oracle Coherence 3.3.1/389p1 <Info> (thread=Main Thread, member=n/a): Loaded operational overrides from file "/home/www/WEB-INF/lib/tangosol-coherence-override.xml"
    Oracle Coherence Version 3.3.1/389p1
    Grid Edition: Development mode
    Copyright (c) 2000-2007 Oracle. All rights reserved.
    2007-11-07 09:49:43.528 Oracle Coherence GE 3.3.1/389p1 <Info> (thread=Main Thread, member=n/a): Loaded cache configuration from file "/home/www/WEB-INF/lib/pub-search-cache-config.xml"
    2007-11-07 09:49:43.571 Oracle Coherence GE 3.3.1/389p1 <Info> (thread=Main Thread, member=n/a): sun.misc.AtomicLong is not supported on this JVM; using a synchronized counter. Though safe to ignore, you may upgrade to BEA's 1.5 JVM to fix this issue.
    2007-11-07 09:49:44.829 Oracle Coherence GE 3.3.1/389p1 <Warning> (thread=Main Thread, member=n/a): UnicastUdpSocket failed to set receive buffer size to 1428 packets (2096304 bytes); actual size is 89 packets (131071 bytes). Consult your OS documentation regarding increasing the maximum socket buffer size. Proceeding with the actual value may cause sub-optimal performance.
    2007-11-07 09:49:45.419 Oracle Coherence GE 3.3.1/389p1 <D5> (thread=Cluster, member=n/a): Service Cluster joined the cluster with senior service member n/a
    2007-11-07 09:49:45.555 Oracle Coherence GE 3.3.1/389p1 <Info> (thread=Cluster, member=n/a): Failed to satisfy the variance: allowed=16, actual=47
    2007-11-07 09:49:45.555 Oracle Coherence GE 3.3.1/389p1 <Info> (thread=Cluster, member=n/a): Increasing allowable variance to 19
    2007-11-07 09:49:46.040 Oracle Coherence GE 3.3.1/389p1 <Info> (thread=Cluster, member=n/a): This Member(Id=2, Timestamp=2007-11-07 09:49:45.69, Address=10.5.176.85:8088, MachineId=48981, Edition=Grid Edition, Mode=Development, CpuCount=4, SocketCount=2) joined cluster with senior Member(Id=1, Timestamp=2007-11-07 09:45:10.205, Address=10.5.176.86:8088, MachineId=48982, Edition=Grid Edition, Mode=Development, CpuCount=4, SocketCount=2)
    Could you please explain why it happens, and what should I do to resolve this issues ?
    Many Thanks,
    Bing

    Hi, Gene
    Thank you for the response. I will send you our full log files and thread dumps.
    I just want to give you more details about our cases :
    1. This only happened without starting cache servers (com.tangosol.net.DefaultCacheServer).
    2. And our application which are running on weblogic cluster will just call "CacheFactory.getCache("XXX")", and running as the Tangosol DataClient.
    3. All weblogic member servers will be up running successfully if our cache servers are up running.
    Also I tried to test another case :
    Suppose all weblogic instances and cache server instances are up running. Now I trying to restart (kill weblogic instance process and restart) one of the weblogic member, It will up running successfully only if add some sleep times after killing weblogic processes and restarting it. Looks like tangosol cluster need certain time to aware the member has left cluster, then the restart process will be successful.
    Questions :
    1. Should we start our weblogic cluster only after cache server cluster is up running ?
    2. How do we decide how many time we should wait before start new process to join the cache cluster ?
    Could you please help to explain this one for me and let us if there anyway we can do to avoid the problem.
    Many Thanks !!!
    Bing

  • No communication between the two nodes in weblogic cluster

    Hi All,
    We have installed weblogic cluster in our environment(LINUX 64-Redhat.5).On one node admin server ,managed server1,on second node we have managed server2.When we try to deploy application on one node it is not getting reflected in othe node.We have ran datagram test to check communication between 2 node.
    Here we observed that listener and pulisher are picking wrong IPs not the server Ips.
    can any one explain why and what is the problem.
    thanks,
    sudheer.

    Hi Sudheer,
    While performing the datagram test you mention the ports and ip so I am not sure how they are picking wrong ip and port. Follow the instructions to perform the test http://coherence.oracle.com/display/COH35UG/Performing+a+Datagram+Test+for+Network+Performance
    Re the deployments, you need to ensure that multicast is enabled in your environment and both your managed server are in the same subnet otherwise you need to specify WKA for unicast communication. I am assuming that you are building SOA infrastructure as it internally uses Coherence for deploying applications and you can follow the instructions http://download.oracle.com/docs/cd/E15523_01/core.1111/e12036/extend_soa.htm#CHDEAFJH else use the intructions as mentioned here http://download.oracle.com/docs/cd/E17904_01/web.1111/e13709/features.htm
    Hope this helps!
    Cheers,
    NJ

  • Timesten database driver is not supported in Weblogic cluster mode??

    Does anybody encounter this situation??
    I have 2 managed server in a Weblogic cluster domain and there is DataSource for them.
    In each managed server, I setup Timesten client correctly to connect to Timesten Oracle DB cache server.
    But when we start each of managed server, I will get exception:
    ####<Nov 22, 2010 6:03:24 PM CST> <Critical> <WebLogicServer> <Machine1> <Main Thread> <<WLS Kernel>> <1290420204498> <BEA-000386> <Server subsystem failed. Reason: java.lang.AssertionError:
    java.lang.AssertionError: Unsupported database driver
    at weblogic.cluster.singleton.QueryHelperImpl.getTimeFunction(QueryHelperImpl.java:88)
    at weblogic.cluster.singleton.QueryHelper.getLeaseOwnerQuery(QueryHelper.java:110)
    at weblogic.cluster.singleton.DatabaseLeasingBasis.pingDB(DatabaseLeasingBasis.java:411)
    at weblogic.cluster.singleton.DatabaseLeasingBasis.getJDBCConnection(DatabaseLeasingBasis.java:465)
    at weblogic.cluster.singleton.DatabaseLeasingBasis.getJDBCConnection(DatabaseLeasingBasis.java:507)
    at weblogic.cluster.singleton.DatabaseLeasingBasis.findOwner(DatabaseLeasingBasis.java:305)
    at weblogic.cluster.singleton.LeaseManager.findOwner(LeaseManager.java:218)
    at weblogic.cluster.singleton.MigratableServerService.findSingletonMaster(MigratableServerService.java:201)
    at weblogic.cluster.singleton.ReplicatedSingletonServicesStateManager.syncStateFromActiveStateManager(ReplicatedSingletonServicesStateManager.java:618)
    at weblogic.cluster.singleton.ReplicatedSingletonServicesStateManager.<init>(ReplicatedSingletonServicesStateManager.java:168)
    at weblogic.cluster.singleton.SingletonMonitor.<init>(SingletonMonitor.java:97)
    at weblogic.cluster.singleton.SingletonMaster.<init>(SingletonMaster.java:44)
    at weblogic.cluster.singleton.MigratableServerService.initialize(MigratableServerService.java:142)
    at weblogic.cluster.singleton.MigratableServerService.start(MigratableServerService.java:436)
    at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
    But if I create a standalone domain, still use the same datasource(still this timesten server), weblogic server can start successfully.
    BR,
    Peng
    Edited by: user8028210 on Nov 25, 2010 1:18 AM
    Edited by: user8028210 on Nov 25, 2010 1:19 AM

    Does anybody encounter this situation??
    I have 2 managed server in a Weblogic cluster domain and there is DataSource for them.
    In each managed server, I setup Timesten client correctly to connect to Timesten Oracle DB cache server.
    But when we start each of managed server, I will get exception:
    ####<Nov 22, 2010 6:03:24 PM CST> <Critical> <WebLogicServer> <Machine1> <Main Thread> <<WLS Kernel>> <1290420204498> <BEA-000386> <Server subsystem failed. Reason: java.lang.AssertionError:
    java.lang.AssertionError: Unsupported database driver
    at weblogic.cluster.singleton.QueryHelperImpl.getTimeFunction(QueryHelperImpl.java:88)
    at weblogic.cluster.singleton.QueryHelper.getLeaseOwnerQuery(QueryHelper.java:110)
    at weblogic.cluster.singleton.DatabaseLeasingBasis.pingDB(DatabaseLeasingBasis.java:411)
    at weblogic.cluster.singleton.DatabaseLeasingBasis.getJDBCConnection(DatabaseLeasingBasis.java:465)
    at weblogic.cluster.singleton.DatabaseLeasingBasis.getJDBCConnection(DatabaseLeasingBasis.java:507)
    at weblogic.cluster.singleton.DatabaseLeasingBasis.findOwner(DatabaseLeasingBasis.java:305)
    at weblogic.cluster.singleton.LeaseManager.findOwner(LeaseManager.java:218)
    at weblogic.cluster.singleton.MigratableServerService.findSingletonMaster(MigratableServerService.java:201)
    at weblogic.cluster.singleton.ReplicatedSingletonServicesStateManager.syncStateFromActiveStateManager(ReplicatedSingletonServicesStateManager.java:618)
    at weblogic.cluster.singleton.ReplicatedSingletonServicesStateManager.<init>(ReplicatedSingletonServicesStateManager.java:168)
    at weblogic.cluster.singleton.SingletonMonitor.<init>(SingletonMonitor.java:97)
    at weblogic.cluster.singleton.SingletonMaster.<init>(SingletonMaster.java:44)
    at weblogic.cluster.singleton.MigratableServerService.initialize(MigratableServerService.java:142)
    at weblogic.cluster.singleton.MigratableServerService.start(MigratableServerService.java:436)
    at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
    But if I create a standalone domain, still use the same datasource(still this timesten server), weblogic server can start successfully.
    BR,
    Peng
    Edited by: user8028210 on Nov 25, 2010 1:18 AM
    Edited by: user8028210 on Nov 25, 2010 1:19 AM

  • About weblogic proxy call weblogic cluster's servlet error

              I use weblogic server 5.1, configruation tow weblogic cluster server and a weblogic
              web server, through weblogic web server received browser's http request only,
              weblogic cluster server do with jsp and servlet, now html&jsp is ok but servlet
              can not do with, if through weblogic cluster server do with jsp and servlet direct,
              it's ok.
              this is my weblogic.properties section:
              weblogic.httpd.register.*.html=\
              weblogic.servlet.internal.HttpClusterServlet
              weblogic.httpd.initArgs.*.html=\
              defaultServers=132.147.35.221:7001|132.147.35.222:7001
              weblogic.httpd.register.*.jsp=\
              weblogic.servlet.internal.HttpClusterServlet
              weblogic.httpd.initArgs.*.jsp=\
              defaultServers=132.147.35.221:7001|132.147.35.222:7001
              weblogic.httpd.register.*.servlet=\
              weblogic.servlet.internal.HttpClusterServlet
              weblogic.httpd.initArgs.*.servlet=\
              defaultServers=132.147.35.221:7001|132.147.35.222:7001
              these are weblogic server as proxy webserver errors:
              &#26143;&#26399;&#19968; &#20843;&#26376; 20 17:42:38 GMT+08:00 2001:<I> <ServletContext-General>
              helloWorld: init
              &#26143;&#26399;&#19968; &#20843;&#26376; 20 17:42:38 GMT+08:00 2001:<E> <ServletContext-General>
              Servlet failed with Exception
              java.lang.NullPointerException
              at weblogic.servlet.internal.HttpClusterServlet.init(HttpClusterServlet.java:99)
              at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:499)
              at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java,
              Compiled Code)
              at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:442)
              at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:200)
              at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:115)
              at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:922)
              at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:886)
              at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:269)
              at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:380)
              at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:268)
              at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled Code)
              tell me a right configuration please ,thanks.
              

    ############### Cluster Proxy Configuration ########################
              weblogic.httpd.register.cluster=weblogic.servlet.internal.HttpClusterServlet
              weblogic.httpd.initArgs.cluster=defaultServers=132.147.35.221:7001|132.147.3
              5.222:7001
              weblogic.httpd.defaultServlet=cluster
              weblogic.allow.execute.weblogic.clustler=everyone
              "chris" <[email protected]> wrote in message
              news:[email protected]...
              >
              > I use weblogic server 5.1, configruation tow weblogic cluster server and
              a weblogic
              > web server, through weblogic web server received browser's http request
              only,
              > weblogic cluster server do with jsp and servlet, now html&jsp is ok but
              servlet
              > can not do with, if through weblogic cluster server do with jsp and
              servlet direct,
              > it's ok.
              >
              > this is my weblogic.properties section:
              > -----------------------------------------------------------------
              > weblogic.httpd.register.*.html=\
              > weblogic.servlet.internal.HttpClusterServlet
              > weblogic.httpd.initArgs.*.html=\
              > defaultServers=132.147.35.221:7001|132.147.35.222:7001
              > weblogic.httpd.register.*.jsp=\
              > weblogic.servlet.internal.HttpClusterServlet
              > weblogic.httpd.initArgs.*.jsp=\
              > defaultServers=132.147.35.221:7001|132.147.35.222:7001
              > weblogic.httpd.register.*.servlet=\
              > weblogic.servlet.internal.HttpClusterServlet
              > weblogic.httpd.initArgs.*.servlet=\
              > defaultServers=132.147.35.221:7001|132.147.35.222:7001
              > -----------------------------------------------------------------
              >
              >
              >
              > these are weblogic server as proxy webserver errors:
              > -----------------------------------------------------------------
              > &#26143;&#26399;&#19968; &#20843;&#26376; 20 17:42:38 GMT+08:00 2001:<I>
              <ServletContext-General>
              > helloWorld: init
              > &#26143;&#26399;&#19968; &#20843;&#26376; 20 17:42:38 GMT+08:00 2001:<E>
              <ServletContext-General>
              > Servlet failed with Exception
              > java.lang.NullPointerException
              > at
              weblogic.servlet.internal.HttpClusterServlet.init(HttpClusterServlet.java:99
              > at
              weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java
              :499)
              > at
              weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.ja
              va,
              > Compiled Code)
              > at
              weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.jav
              a:442)
              > at
              weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:20
              0)
              > at
              weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
              :115)
              > at
              weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
              l.java:922)
              > at
              weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
              l.java:886)
              > at
              weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
              Manager.java:269)
              > at
              weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:380)
              > at
              weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:268)
              > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled
              Code)
              > -----------------------------------------------------------------
              >
              > tell me a right configuration please ,thanks.
              

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