State Replication option..

Is there some way of specifying whether the state replication should happen synchronously or asynchronously.
          Also, is there some way that the state replication decision can be made custom driven. By this i mean user writing the code which decides whether the state has changed and needs to be communicated. This could be useful in a Stateful session bean where one might like to decide when to replicate (i.e. on change of which all atrributes should the replication occur).
          JBoss has a mechanism by which we can specify a mehtod isModified which should return boolean, which is called before replicating the state. THis helps in achieving fine-grained replcation.

For stateful sessoin EJBs the container automatically determines whether you've modified anything and sends the minimal diff across the wire. There's no need to write an isModified method (which I would consider a little error-prone and cumbersome).
          The replication is always done synchronously. There is no option currently to make it async but other people have asked for it.
          -- Rob
          WLS Blog http://dev2dev.bea.com/blog/rwoollen/

Similar Messages

  • RE: (forte-users) Changing replication options in Fscript? -Tric k

    There was one attribute of a service object you couldn't change in fscript..
    I think it was whether the service was replicated at all or not (not the
    same as setting rep count to 1!).
    As Clint would say, "improvise.."
    We exported the project containing the service object and snipped out the
    part pertaining to the service object in to a little export file.
    Then in an fscript script you can branch/checkout the service object and
    import the snipped out export file to change the replicated yes/no flag.
    Then do whatever other fscript commands make sense.. We tended to leave the
    system baseline with the "true" replication flags and let developers run
    this little script (only branching the services) to de-replicate all the
    replicated services prior to trying to run from their workspace, etc.
    Worked like a charm.
    -Greg
    -----Original Message-----
    From: Taras Katkov
    To: [email protected]
    Sent: 12/1/99 2:57 PM
    Subject: Re: (forte-users) Changing replication options in Fscript?
    "setappcompcompiled", "setPARTrepcount" can be used in fscript during
    application build.
    I mean PERIOD!
    Taras Katkov
    f.e.
    FindAppComp AppNAme_PartXX
    SetAppCompCompiled MyNode 1
    SetPartRepCount MyNode YY
    SetPartArgs MyNode \"Whatever\"
    SetPartThreadPkg MyNode DCE
    commit
    [email protected] wrote:
    >
    Yes through escript one can achieve changing the properties but onecannot
    do it when one is partitioning the app where the router gets createdand
    assigned ( which is fscript) and the single threadedness of thepartition
    takes effect ( for loadbalancing ) except from the partitioningworkshop
    (GUI) itself.
    -----Original Message-----
    From: [email protected] [mailto:[email protected]]
    Sent: Wednesday, December 01, 1999 3:39 PM
    To: [email protected]; [email protected];
    [email protected]
    Subject: RE: (forte-users) Changing replication options in Fscript?
    Yes you can do it, but you actually do it in EScript not FScript lookfor
    the following types of command "assignappcomp", "unassignappcomp",
    "setappcompcompiled", "setrepcount", "findagent", "findsubagent",
    "findparent" etc.. So start with your EScript manual.
    Happy scripting.
    -----Original Message-----
    From: [email protected] [mailto:[email protected]]
    Sent: Wednesday, December 01, 1999 1:36 PM
    To: [email protected]; [email protected]
    Subject: RE: (forte-users) Changing replication options in Fscript?
    no it is not. One can compiling properties but not replicationproperties
    through Fscript.
    -----Original Message-----
    From: [email protected] [mailto:[email protected]]
    Sent: Wednesday, December 01, 1999 3:24 PM
    To: [email protected]
    Subject: (forte-users) Changing replication options in Fscript?
    Before making a distribution, we modify replication options on some ofour
    service objects from within the Partition Workshop (to get rid of the
    router partition on some of our applications). Does anyone know ifit is
    possible to do this in Fscript? Thanks for your help.
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in anew
    email the word: 'Unsubscribe' to: [email protected]
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in anew
    email the word: 'Unsubscribe' to: [email protected]
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in anew
    email the word: 'Unsubscribe' to: [email protected]
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in a
    new
    email the word: 'Unsubscribe' to: [email protected]

    You can set the the number of replicas through fscript BUT the service
    object in that partition has to be marked for LOADBALANCE. I didn't find a
    fscript command to do that (that was what mnasser was trying to tell you).
    But you can get around it by exporting the plan that has the service object
    and look for the string LoadBalance = FALSE, then change it to LoadBalance =
    TRUE. Import back the plan and you should be fine.
    Norocel Popa
    -----Original Message-----
    From: [email protected] [mailto:[email protected]]
    Sent: Wednesday, December 01, 1999 8:28 PM
    To: [email protected]; [email protected]
    Subject: RE: (forte-users) Changing replication options in Fscript? -
    Tric k
    There was one attribute of a service object you couldn't change in fscript..
    I think it was whether the service was replicated at all or not (not the
    same as setting rep count to 1!).
    As Clint would say, "improvise.."
    We exported the project containing the service object and snipped out the
    part pertaining to the service object in to a little export file.
    Then in an fscript script you can branch/checkout the service object and
    import the snipped out export file to change the replicated yes/no flag.
    Then do whatever other fscript commands make sense.. We tended to leave the
    system baseline with the "true" replication flags and let developers run
    this little script (only branching the services) to de-replicate all the
    replicated services prior to trying to run from their workspace, etc.
    Worked like a charm.
    -Greg
    -----Original Message-----
    From: Taras Katkov
    To: [email protected]
    Sent: 12/1/99 2:57 PM
    Subject: Re: (forte-users) Changing replication options in Fscript?
    "setappcompcompiled", "setPARTrepcount" can be used in fscript during
    application build.
    I mean PERIOD!
    Taras Katkov
    f.e.
    FindAppComp AppNAme_PartXX
    SetAppCompCompiled MyNode 1
    SetPartRepCount MyNode YY
    SetPartArgs MyNode \"Whatever\"
    SetPartThreadPkg MyNode DCE
    commit
    [email protected] wrote:
    >
    Yes through escript one can achieve changing the properties but onecannot
    do it when one is partitioning the app where the router gets createdand
    assigned ( which is fscript) and the single threadedness of thepartition
    takes effect ( for loadbalancing ) except from the partitioningworkshop
    (GUI) itself.
    -----Original Message-----
    From: [email protected] [mailto:[email protected]]
    Sent: Wednesday, December 01, 1999 3:39 PM
    To: [email protected]; [email protected];
    [email protected]
    Subject: RE: (forte-users) Changing replication options in Fscript?
    Yes you can do it, but you actually do it in EScript not FScript lookfor
    the following types of command "assignappcomp", "unassignappcomp",
    "setappcompcompiled", "setrepcount", "findagent", "findsubagent",
    "findparent" etc.. So start with your EScript manual.
    Happy scripting.
    -----Original Message-----
    From: [email protected] [mailto:[email protected]]
    Sent: Wednesday, December 01, 1999 1:36 PM
    To: [email protected]; [email protected]
    Subject: RE: (forte-users) Changing replication options in Fscript?
    no it is not. One can compiling properties but not replicationproperties
    through Fscript.
    -----Original Message-----
    From: [email protected] [mailto:[email protected]]
    Sent: Wednesday, December 01, 1999 3:24 PM
    To: [email protected]
    Subject: (forte-users) Changing replication options in Fscript?
    Before making a distribution, we modify replication options on some ofour
    service objects from within the Partition Workshop (to get rid of the
    router partition on some of our applications). Does anyone know ifit is
    possible to do this in Fscript? Thanks for your help.
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in anew
    email the word: 'Unsubscribe' to: [email protected]
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in anew
    email the word: 'Unsubscribe' to: [email protected]
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in anew
    email the word: 'Unsubscribe' to: [email protected]
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in a
    new
    email the word: 'Unsubscribe' to: [email protected]
    For the archives, go to: http://lists.sageit.com/forte-users and use
    the login: forte and the password: archive. To unsubscribe, send in a new
    email the word: 'Unsubscribe' to: [email protected]

  • Session State Replication of Referenced Objects

    Here is question on Clustering and Session state replication:
              Scenario:
              Consider two Session Objects A and B.
              Object A has-a reference to object B.
              So whatever changes done to Object B is reflected in Object A.
              In-memory Session replication happens on every HttpSession.setAttribute() call.
              The question is will the two session objects(A and B) be replicated to the other cluster and will still maintain the reference relationship or will they be two separate objects with same data (in different memory locations).
              regards,
              Jaiganesh

    Ok, I have been meaning to dig into session replication in a bit more detail and your question is a good excuse to do it!
              First stop the docs:
              Bea Docs
              The bits that jump out are under:
              Programming Considerations for Clustered Servlets and JSPs
              1) Session Data Must Be Serializable, so both your objects are serializable.
              2) Use setAttribute to Change Session State In an HTTP servlet that implements javax.servlet.http.HttpSession, use HttpSession.setAttribute (which replaces the deprecated putValue) to change attributes in a session object. If you set attributes in a session object with setAttribute, the object and its attributes are replicated in a cluster using in-memory replication. If you use other set methods to change objects within a session, WebLogic Server does not replicate those changes. Every time a change is made to an object that is in the session, setAttribute() should be called to update that object across the cluster.
              Likewise, use removeAttribute (which, in turn, replaces the deprecated removeValue) to remove an attribute from a session object.
              >Will the reference as shown in the step 3 will be >maintained after replication on the other cluster ?? I >guess not!!
              I don't understand "on the other cluster" There is normally one cluster made up of a few servers. The session state is maintained on one primary server and a secondary server. So you have aObj.a2 = bObj, from the docs I would understand that at the momment you called session.setAttribute the aObj and all its fields provided they are seriliazable will be replicated in Mememory.
              >There the aObj and bObj stored in the two different >session objects will not have a reference relationship >in other words if i change bObj on the other cluster >will the reference a2 of aObj be able see it ??
              This is testing the limits of my understanding, but would have thought if the objects are in different sessions they should not be able to reference each other in the manner I think you are suggesting, so if I access aObj.a2 (an instance of bObj) and changed it in one session it should not affet any other bObj unless bObj is a singleton....I think!
              What say you?

  • Issue with : Stateful BSP Applications: New State Management Option

    Reference:weblog by Thomas Jung -  /people/thomas.jung3/blog/2004/11/09/updated-stateful-bsp-applications-new-state-management-option
    I see a comment by one user to send the complete code... I am not sure what else can be sent   - try it out rather than getting spoon-fed. - getting offline - sorry...
    I had two issues with this ITSM way of session handling.
    First - if you are using an SP42 environment, check CL_BSP_RUNTIME=>ON_SESSION_CMD() to see if CANCEL is defined as an option. If not make sure that you use &sap-sessioncmd=CLOSE" instead of the &sap-sessioncmd=CANCEL" . If CANCEL is not defined , it will give you shortdumps...
    Second - when I closed the window, the session was not terminated. I used onbeforeUnLoad="exitBSPApplication(); instead of onUnLoad="exitBSPApplication(); and it worked fine. Not sure if it has any other issues.
    But now I am facing a new issue... all but one application is not ending... I have no clue on why this is happening.. I am still checking..
    Thanks Thomas, you are the best, as always...

    Thanks for checking the code in your system.
    After some investigation, I found the behavior as explained below.
    If the actual url has any fields passed as parameters, e.g.. /default.htm?var1=a&var2=2 ...
    - if I use CANCEL as the option, a shortdump is created and the session is not closed. if I use CLOSE, Session is terminated and no shortdump happens.
    If the actual url does not have any parameters, e.g.. /default.htm ...
    - CANCEL does the work, but CLOSE does not exit the session.
    In my applications I used request->get_form_fields to see if there are any parameters, and if there are, then I use CLOSE as the option and else, I use CANCEL. So now, the session
    management works beautifully...
    There is a good chance that I am doing something wrong here too.

  • Post install problem. Changes to the state or options of DB SUSDB can't be made at this time. DB Is in single-user mode.

    Hi,
    Have you ever come across this problem before.
    Changes to the state or options of DB SUSDB can't be made at this time. DB Is in single-user mode and a user is currently connected to it.
    It's preventing the post WSUS installation task from completing.
    I opted to use the WID Database option and it created the SUSDB.
    How can I resolve it?
    Thanks  

    this sounds similar to some issues that occurred when KB2720211 was first release (the update does put the DB into single-user mode, to perform some tasks, then switches it back into multi-user mode. sometimes, that switch-back was not performed, and the
    DB was left in single-user mode).
    You can refer to this thread, the steps are buried in there.
    http://social.technet.microsoft.com/Forums/windowsserver/en-US/531d576b-eeaf-40dc-9057-b3adbde6186f/kb2720211-debacle-is-this-acceptable-microsoft-quality?forum=winserverwsus
    Don
    (Please take a moment to "Vote as Helpful" and/or "Mark as Answer", where applicable.
    This helps the community, keeps the forums tidy, and recognises useful contributions. Thanks!)

  • State replication on weblogic

    I am building a chat server using weblogic. Our environment is such
              that it has 2 servers (call them A & B) in a clustered weblogic
              environment. There is a load balancer sitting on top of the 2 servers
              so that every HTTP request can be load balanced over the 2 servers.
              When a user logs in to the chat server, the user is put in a queue.
              When another user logs in, this second user should be able to see all
              the logged in users. If there had been only one server, that state
              could have been easily maintained. But, since there are 2 servers,
              there is a need to constantly synchronize the state across the 2
              servers since the first users login request might go to server A and
              the second users request to server B. Using the database is one option
              but it is very slow for chat server purposes.
              Is there is a way to use EJB or HTTP persistence/replication in this
              scenario?
              Thanks,
              Akash.
              

    Coherence provides the only coherent replicated cache for Java:
              http://www.tangosol.com/coherence.jsp
              (BTW - Coherence 2.0 goes GA today!)
              Peace,
              Cameron Purdy
              Tangosol, Inc.
              http://www.tangosol.com/coherence.jsp
              Tangosol Coherence: Clustered Replicated Cache for Weblogic
              "Akash Jain" <[email protected]> wrote in message
              news:[email protected]..
              > I am building a chat server using weblogic. Our environment is such
              > that it has 2 servers (call them A & B) in a clustered weblogic
              > environment. There is a load balancer sitting on top of the 2 servers
              > so that every HTTP request can be load balanced over the 2 servers.
              >
              > When a user logs in to the chat server, the user is put in a queue.
              > When another user logs in, this second user should be able to see all
              > the logged in users. If there had been only one server, that state
              > could have been easily maintained. But, since there are 2 servers,
              > there is a need to constantly synchronize the state across the 2
              > servers since the first users login request might go to server A and
              > the second users request to server B. Using the database is one option
              > but it is very slow for chat server purposes.
              >
              > Is there is a way to use EJB or HTTP persistence/replication in this
              > scenario?
              >
              > Thanks,
              > Akash.
              

  • Help to sum up insert/update/delete statements audit options in 9.2 .

    Hi,
    I'm considering what audit options Oracle 9.2.0.8 Enterprice Edition got for dml statements.
    So far I know:
    - there is no dml text stored except for sysdba/sysoper users via audit_sys_operations
    -audit insert , delete,update gets only who/when no acctual sql_text available
    -FGA is only usable for SELECTS but with CBO enabled or false possitives possible
    only solution is:
    -create trigger on every application table which will do audit via autonomous transaction and some homegrown code
    -create after logon trigger which makes trace like 10046
    -sniff network traffic between DB and hosts and use intelligent software to extract sql statements
    Did I miss something obvious here ?
    Regards.
    Greg

    LogMiner...
    Though you don't want to run that on continuous basis.
    Sybrand Bakker
    Senior Oracle DBA

  • Session state replication

    Hi.
    Has anyone got the session replication in OC4J to work
    on Windows 2000?
    We're running a 9.0.2 infrastructure and two clustered
    9.0.3 9iAS application servers, that are supposed to
    replicate HTTPServletSession state.
    We are using the default_island on a separate OC4J
    instance that are configured via Enterprice Manager to
    use multicast IP 230.0.0.1 and port 9127 (default).
    The tag <cluster-config/> is present in the file
    orion-web.xml and the <distributable/> tag is present in
    the web.xml in the WAR-file.
    No EJBs are used - only JSPs and servlets.
    Any suggestions?
    Thanks!
    Jesper

    Hi,
    This is the expected behavior. Please take a look at this document: WebLogic Server - Session Replication/Failover Scenario When Only One Server In Cluster is RUNNING (Doc ID 1292033.1)
    In a WebLogic Server domain, with a Cluster of 2 Managed Servers and a web application deployed on this Cluster, you have only one managed server running and then you make a request through a proxy server to access the application.
    The default cookie which is JSESSIONID will be created something like
    <SessionID>!<PrimaryJVMID>!NONE
    Here, you see the secondary server as NONE as there is only one server in cluster running.
    Now, you leave HTTP session idle, meaning there will be no activity and requests in it.
    Now, you bring up the second managed server instance in the cluster. The JSESSIONID for the earlier created HTTPSession will be unchanged: still
    <SessionID>!<PrimaryJVMID>!NONE
    unless there are any requests made or activity in it.
    At this point of time, if there is a failure of the Managed server, the idle in-flight HTTP Sessions which were created earlier when this managed server was RUNNING, will be dropped and there will be no failover. Only active HTTP Sessions which have a secondary JVM ID will be failed over to the secondary managed server.
    At any point, if subsequent requests are made and if any activity is made to the Idle HTTP sessions which were earlier created, the JSESSIONID gets updated with the secondary JVMID and sessions gets replicated and failed over in case of server crash.

  • Oracle XE Replication Options

    I have an Oracle XE database which I would like to replicate on a secondary server for failover purposes. I have done some research into this and it appears that Oracle basic materialized view replication is the only option available to me.
    Are there other alternatives out there that are suitable for creating an Oracle XE failover environment?
    Werner

    Yes you need to have Oracle 10g Enterprise edition for using other mechanisms like streams for replication.

  • How to enable multi-statement replication like select into in SAP Replication server

    Hi All,
    Currently I am worling on replication of non logged operation using SAP Replication Server.My source and target databases both are Sybase ASE 15.7. I created a normal stored procedure having non logged operation like :
    create procedure proc1
    as
    select * into tab2 from tab1
    I have created database replication definition using following command :
    create database replication definition def1
    with primary at dewdfgwp01694.src
    replicate DDL
    replicate functions
    replicate transactions
    replicate tables
    and created subscription as well
    After marking the procedure using sp_setrepproc proc1,'function', I started the repagent (sp_start_rep_agent src)
    But after marking the procedure I am unable to execute the procedure and having the error :
    SELECT INTO command not allowed within multi statement transactions
    Sybase error code=226
    Can anyone please guide me in this situation
    FYI : I have executed all three commands in primary database :
    sp_dboption src,'select into/bulkcopy/pllsort',true;
    sp_dboption src,'ddl in tran',true;
    sp_dboption src,'full logging for all',true

    I am getting the error in primary database(Sybase ASE console) as well as in repserver .
    This error is occurring after the marking of the procedure in the primary database for replicating.
    And after getting this error i am unable to replicate any other table or procedure(seems the DSI thread is going down in repserver)
    the error in repserver is given below :
    T. 2014/09/20 16:58:03. (27): Last command(s) to 'server_name.trg':
    T. 2014/09/20 16:58:03. (27): 'begin transaction  [0a] exec proc1  '
    E. 2014/09/20 16:58:03. ERROR #1028 DSI EXEC(103(1) 'server_name.trg) - dsiqmint.c(4710)
    Message from server: Message: 226, State 1, Severity 16 -- 'SELECT INTO command not allowed within multi-statement transaction.
    H. 2014/09/20 16:58:03. THREAD FATAL ERROR #5049 DSI EXEC(103(1) server_name.trg) - dsiqmint.c(4723)
    The DSI thread for database 'server_name.trg' is being shutdown. DSI received data server error #226 which is mapped to STOP_REPLICATION. See logged data server errors for more information. The data server error was caused by output command #0 mapped from input command #0 of the failed transaction.
    I. 2014/09/20 16:58:03. The DSI thread for database 'server_name.trg' is shutdown.
    I. 2014/09/20 18:07:48. Replication Agent for server_name.src connected in passthru mode.

  • Add a military address/state "AP" option to Shopping Cart state dropdown

    I need to add "AP" to the "Select a State" dropdown in the shopping cart, and BC Support said it can be done using Javascript. Just wondering if anyone out there has already done something like this and could share their javascript code? I asusme the code is fairly simple, but I unfortunately don't know javascript.
    Thanks!

    Hi Joel,
    All the Destination States in the shipping options dropdown are Tax codes in admin, under eCommerce> Tax Codes.
    Add AP there and specify the tax percentage and AP will appear as one of the states inside the shopping cart.
    Cheers,
    -mario

  • State replication in weblogic 5.1

              Hi All,
              I am using weblogic 5.1 in a clustered environment
              I am developing a web based application which displays an HTML form which contains
              several pre-filled combo box.
              The data of these combos will come from several Master tables of the database.
              I intend to provide this data in the form of a collection to my presentation layer,
              which then formats it for display in the combo's. This collection is returned
              as a result of a method call (e.g. getCompanyData()) on an entity ejb deployed
              on WLS. This entity ejb is not mapped to any particular table. It contains several
              member variables which are collections of the master data I need for the combos.
              Now I also have another HTML form which adds/modifies these collections in the
              entity ejb and inserts/updates the same in the master table in the database.
              Since I have a clustered environment for every above operation that is performed
              I need to replicate the state of the entity ejb of whose member variable is modified
              to all instances of the WLS in the cluster.
              Any suggestions ?
              thanks a lot in advance
              Devdatt
              

    Since I have a clustered environment for every above operation that          > is performed I need to replicate the state of the entity ejb of whose
              > member variable is modified to all instances of the WLS in the cluster.
              If you want to replicate the state without having to always go to the
              database, use our Coherence product.
              Peace,
              Cameron Purdy
              Tangosol, Inc.
              http://www.tangosol.com/coherence.jsp
              Tangosol Coherence: Clustered Replicated Cache for Weblogic
              "Devdatt" <[email protected]> wrote in message
              news:3e6326c1$[email protected]..
              >
              

  • Bank Statement Import option

    Hai,
      I am using SAP B1 2005 B PL :27
      I have received a statement from bank in XLS format. Please let me know how can i import to SAP B1 for reconcilation purpose.
    regards
    Suresh S

    Hello,
    You could use payment engine addon, it is free and included in the product CD. The latest PL can be downloaded is PL 75.. Another way out is developing the UI/DI addon.
    Actually there is a template to import process bank external statement that received from bank but some of the columns there can't be used. The template name is bankpages.you can also use that.
    Rgds,

  • Clustered session state replication

              We are new to WebLogic, vrs 8.1 server, and are trying to get session states to
              replicate within a cluster. We believe everything is set up per the Bea docs but
              in the end "the state" on the secondary does not seem to exist, or we do not know
              how to see it.
              Our environment:
              A domain with one admin server and four managed servers on a Sun server. Three
              of the managed servers are in a cluster, the fourth is the proxy server dispatching
              to the cluster using WebLogic HttpCluteredServlet. The app deployed to the cluster
              has the weblogic.xml session parameter for PersistentStoreType set to replciated.
              Everything runs fine till the end: A call to the app is received at the ProxyServer
              and is routed to a server in the cluster. The servlet creates a session object
              for the user. When the user executes the servlet a second time the session object
              is updated and a count is displayed to the user for each subsequent hit to the
              servlet. The session object (a java object) is serialized. Then we kill the primary
              server that is used to comunicate with the user requests. The proxyServer then
              directs the user to a different server within the cluster as it should, but the
              session object from the primary server (now killed) does not appear to be on the
              new server since a new session object gets created.
              Any ideas?
              

    Warren Anderson wrote:
              > We are new to WebLogic, vrs 8.1 server, and are trying to get session states to
              > replicate within a cluster. We believe everything is set up per the Bea docs but
              > in the end "the state" on the secondary does not seem to exist, or we do not know
              > how to see it.
              >
              > Our environment:
              >
              > A domain with one admin server and four managed servers on a Sun server. Three
              > of the managed servers are in a cluster, the fourth is the proxy server dispatching
              > to the cluster using WebLogic HttpCluteredServlet. The app deployed to the cluster
              > has the weblogic.xml session parameter for PersistentStoreType set to replciated.
              >
              > Everything runs fine till the end: A call to the app is received at the ProxyServer
              > and is routed to a server in the cluster. The servlet creates a session object
              > for the user. When the user executes the servlet a second time the session object
              > is updated and a count is displayed to the user for each subsequent hit to the
              > servlet. The session object (a java object) is serialized. Then we kill the primary
              > server that is used to comunicate with the user requests. The proxyServer then
              > directs the user to a different server within the cluster as it should, but the
              > session object from the primary server (now killed) does not appear to be on the
              > new server since a new session object gets created.
              >
              > Any ideas?
              Did you make sure everything in the session is serializable or remote?
              -- Prasad
              

  • 10 G Replication Options

    The Oracle 10G Standard Edition does not offer Streams. What would one suggest to use for replicating data from one Database to another if we purchased 10G Standard Edition?
    We currently have Streams between 2 Databases on Oracle 9i Enterprise Edition but if we migrate to 10G Standard Edition, streams is no longer.

    Ok forgive my ignorance. I thought Materialized views were schedulted to run at lets asy evrery 4 hours however I wasn't aware that it could offer realtime replication.
    Are you saying that If I create a Materialized View and and specify the clause REFRESH FAST ON COMMIT will offer a form of real time replication?
    This is for reporting purposes that I'm trying to achieve!

Maybe you are looking for

  • Como usar o compo de inf. adicionais do projeto acbr (infAdFisco e infCpl)?

    Como usar o compo de informações adicionais do projeto acbr (infAdFisco e infCpl) ? A estrutura é simples. O problema é que esse campo não veio no arquivo de demonstração, aí, não dá pra usar. E aí???

  • How do I turn off background music in a project?

    Good afternoon again.  I was given an old project done in Captivate 2.0 that needed revisions .  The individual who did this project added music to it; however, the participants who have already done this training have found it annoying and do not li

  • I want to install Skype on my iPhone.

    I have got an iPhone. I want to install Skype on my iPhone. When installing it throught iTunes, it is showing that Skype is a free application but when I continue to download and install it, it asks for payment through credit cards!? So what is the m

  • My imported swf files have lost their streaming sound. What can I do?

    I am trying to import a swf I made that contains streaming sound. When I place it on the time line and press cntr enter my animation plays but with no audio. I see the symbols from the swf and the swf inside my library. When I open the swf file insid

  • NoClassDefFound org/omg/CORBA/UserException

    I am attempting to install IFS 1.0.8 for a new instance on a Unix server 2.7 that already has an existing IFS 1.0.8 install against another database. Following the creation of the second ORACLE_HOME, second instance, and the installing IFS, I attempt