Multiple types of database and fail over clustering

Hi,
I have a few questions here.
1) Can I have 2 types of databases (eg: OLTP and OLAP)run at the same time on a same machine?
2) Can I implement a cross fail over cluster in this situation? Meaning I have 2 machines with OLAP and OLTP database instances installed in them (replica of each other), 1st machine running OLTP and 2nd running OLAP. In the situation where one of machines fail, the passive instance on the other machine takes over (back to situation on question 1).
Thanks
Regards
Lai Ling

Dear All,
My problem is solved by disabling antivirus.
thanks for the support
Sunil
SUNIL PATEL SYSTEM ADMINISTRATOR

Similar Messages

  • WLS6.1sp1 stateful EJB problem =   load-balancing and fail over

              I have three problem
              1. I have 2 clustered server. my weblogic-ejb-jar.xml is here
              <?xml version="1.0"?>
              <!DOCTYPE weblogic-ejb-jar PUBLIC '-//BEA Systems, Inc.//DTD WebLogic 6.0.0 EJB//EN'
              'http://www.bea.com/servers/wls600/dtd/weblogic-ejb-jar.dtd'>
              <weblogic-ejb-jar>
              <weblogic-enterprise-bean>
                   <ejb-name>DBStatefulEJB</ejb-name>
                   <stateful-session-descriptor>
                   <stateful-session-cache>
                        <max-beans-in-cache>100</max-beans-in-cache>
                        <idle-timeout-seconds>120</idle-timeout-seconds>
                   </stateful-session-cache>
                   <stateful-session-clustering>
                        <home-is-clusterable>true</home-is-clusterable>
                        <home-load-algorithm>RoundRobin</home-load-algorithm>
                        <home-call-router-class-name>common.QARouter</home-call-router-class-name>
                        <replication-type>InMemory</replication-type>
                   </stateful-session-clustering>
                   </stateful-session-descriptor>
                   <jndi-name>com.daou.EJBS.solutions.DBStatefulBean</jndi-name>
              </weblogic-enterprise-bean>
              </weblogic-ejb-jar>
              when i use "<home-call-router-class-name>common.QARouter</home-call-router-class-name>"
              and deploy this ejb, exception cause
              <Warning> <Dispatcher> <RuntimeException thrown b
              y rmi server: 'weblogic.rmi.cluster.ReplicaAwareServerRef@9 - jvmid: '2903098842
              594628659S:203.231.15.167:[5001,5001,5002,5002,5001,5002,-1]:mydomain:cluster1',
              oid: '9', implementation: 'weblogic.jndi.internal.RootNamingNode@5f39bc''
              java.lang.IllegalArgumentException: Failed to instantiate weblogic.rmi.cluster.B
              asicReplicaHandler due to java.lang.reflect.InvocationTargetException
              at weblogic.rmi.cluster.ReplicaAwareInfo.instantiate(ReplicaAwareInfo.ja
              va:185)
              at weblogic.rmi.cluster.ReplicaAwareInfo.getReplicaHandler(ReplicaAwareI
              nfo.java:105)
              at weblogic.rmi.cluster.ReplicaAwareRemoteRef.initialize(ReplicaAwareRem
              oteRef.java:79)
              at weblogic.rmi.cluster.ClusterableRemoteRef.initialize(ClusterableRemot
              eRef.java:28)
              at weblogic.rmi.cluster.ClusterableRemoteObject.initializeRef(Clusterabl
              eRemoteObject.java:255)
              at weblogic.rmi.cluster.ClusterableRemoteObject.onBind(ClusterableRemote
              Object.java:149)
              at weblogic.jndi.internal.BasicNamingNode.rebindHere(BasicNamingNode.jav
              a:392)
              at weblogic.jndi.internal.ServerNamingNode.rebindHere(ServerNamingNode.j
              ava:142)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              2)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              9)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              9)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              9)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              9)
              at weblogic.jndi.internal.RootNamingNode_WLSkel.invoke(Unknown Source)
              at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:296)
              So do i must use it or not???
              2. When i don't use "<home-call-router-class-name>common.QARouter</home-call-router-class-name>"
              , there's no exception
              but load balancing does not happen. According to the document , there's must load
              balancing when i call home.create() method.
              my client program goes here
                   DBStateful the_ejb1 = (DBStateful) PortableRemoteObject.narrow(home.create(),
              DBStateful.class);
                   DBStateful the_ejb2 = (DBStateful) PortableRemoteObject.narrow(home.create(3),
              DBStateful.class);
              the result is like that
                   the_ejb1 = ClusterableRemoteRef(203.231.15.167 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@4695a6)/397
                   the_ejb2 = ClusterableRemoteRef(203.231.15.167 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@acf6e)/398
                   or
                   the_ejb1 = ClusterableRemoteRef(203.231.15.125 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@252fdf)/380
                   the_ejb2 = ClusterableRemoteRef(203.231.15.125 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@6a0252)/381
                   I think the result should be like under one... isn't it??
                   the_ejb1 = ClusterableRemoteRef(203.231.15.167 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@4695a6)/397
                   the_ejb2 = ClusterableRemoteRef(203.231.15.125 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@6a0252)/381
              In this case i think the_ejb1 and the_ejb2 must have instance in different cluster
              server
              but they go to one server .
              3. If i don't use      "<home-call-router-class-name>common.QARouter</home-call-router-class-name>",
              "<replication-type>InMemory</replication-type>" then load balancing happen but
              there's no fail-over
              So how can i get load-balancing and fail over together??
              

              I have three problem
              1. I have 2 clustered server. my weblogic-ejb-jar.xml is here
              <?xml version="1.0"?>
              <!DOCTYPE weblogic-ejb-jar PUBLIC '-//BEA Systems, Inc.//DTD WebLogic 6.0.0 EJB//EN'
              'http://www.bea.com/servers/wls600/dtd/weblogic-ejb-jar.dtd'>
              <weblogic-ejb-jar>
              <weblogic-enterprise-bean>
                   <ejb-name>DBStatefulEJB</ejb-name>
                   <stateful-session-descriptor>
                   <stateful-session-cache>
                        <max-beans-in-cache>100</max-beans-in-cache>
                        <idle-timeout-seconds>120</idle-timeout-seconds>
                   </stateful-session-cache>
                   <stateful-session-clustering>
                        <home-is-clusterable>true</home-is-clusterable>
                        <home-load-algorithm>RoundRobin</home-load-algorithm>
                        <home-call-router-class-name>common.QARouter</home-call-router-class-name>
                        <replication-type>InMemory</replication-type>
                   </stateful-session-clustering>
                   </stateful-session-descriptor>
                   <jndi-name>com.daou.EJBS.solutions.DBStatefulBean</jndi-name>
              </weblogic-enterprise-bean>
              </weblogic-ejb-jar>
              when i use "<home-call-router-class-name>common.QARouter</home-call-router-class-name>"
              and deploy this ejb, exception cause
              <Warning> <Dispatcher> <RuntimeException thrown b
              y rmi server: 'weblogic.rmi.cluster.ReplicaAwareServerRef@9 - jvmid: '2903098842
              594628659S:203.231.15.167:[5001,5001,5002,5002,5001,5002,-1]:mydomain:cluster1',
              oid: '9', implementation: 'weblogic.jndi.internal.RootNamingNode@5f39bc''
              java.lang.IllegalArgumentException: Failed to instantiate weblogic.rmi.cluster.B
              asicReplicaHandler due to java.lang.reflect.InvocationTargetException
              at weblogic.rmi.cluster.ReplicaAwareInfo.instantiate(ReplicaAwareInfo.ja
              va:185)
              at weblogic.rmi.cluster.ReplicaAwareInfo.getReplicaHandler(ReplicaAwareI
              nfo.java:105)
              at weblogic.rmi.cluster.ReplicaAwareRemoteRef.initialize(ReplicaAwareRem
              oteRef.java:79)
              at weblogic.rmi.cluster.ClusterableRemoteRef.initialize(ClusterableRemot
              eRef.java:28)
              at weblogic.rmi.cluster.ClusterableRemoteObject.initializeRef(Clusterabl
              eRemoteObject.java:255)
              at weblogic.rmi.cluster.ClusterableRemoteObject.onBind(ClusterableRemote
              Object.java:149)
              at weblogic.jndi.internal.BasicNamingNode.rebindHere(BasicNamingNode.jav
              a:392)
              at weblogic.jndi.internal.ServerNamingNode.rebindHere(ServerNamingNode.j
              ava:142)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              2)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              9)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              9)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              9)
              at weblogic.jndi.internal.BasicNamingNode.rebind(BasicNamingNode.java:36
              9)
              at weblogic.jndi.internal.RootNamingNode_WLSkel.invoke(Unknown Source)
              at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:296)
              So do i must use it or not???
              2. When i don't use "<home-call-router-class-name>common.QARouter</home-call-router-class-name>"
              , there's no exception
              but load balancing does not happen. According to the document , there's must load
              balancing when i call home.create() method.
              my client program goes here
                   DBStateful the_ejb1 = (DBStateful) PortableRemoteObject.narrow(home.create(),
              DBStateful.class);
                   DBStateful the_ejb2 = (DBStateful) PortableRemoteObject.narrow(home.create(3),
              DBStateful.class);
              the result is like that
                   the_ejb1 = ClusterableRemoteRef(203.231.15.167 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@4695a6)/397
                   the_ejb2 = ClusterableRemoteRef(203.231.15.167 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@acf6e)/398
                   or
                   the_ejb1 = ClusterableRemoteRef(203.231.15.125 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@252fdf)/380
                   the_ejb2 = ClusterableRemoteRef(203.231.15.125 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@6a0252)/381
                   I think the result should be like under one... isn't it??
                   the_ejb1 = ClusterableRemoteRef(203.231.15.167 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@4695a6)/397
                   the_ejb2 = ClusterableRemoteRef(203.231.15.125 weblogic.rmi.cluster.PrimarySecon
                   daryReplicaHandler@6a0252)/381
              In this case i think the_ejb1 and the_ejb2 must have instance in different cluster
              server
              but they go to one server .
              3. If i don't use      "<home-call-router-class-name>common.QARouter</home-call-router-class-name>",
              "<replication-type>InMemory</replication-type>" then load balancing happen but
              there's no fail-over
              So how can i get load-balancing and fail over together??
              

  • Is it possible to add hyper-V fail over clustering afterwards?

    Hi,
    We are testing Windows 2012R2 Hyper-V using only one stand alone host without fail over clustering now with few virtual machines. Is it possible to add fail over clustering afterwards and add second Hyper-V node and shared disk and move virtual
    machines there or do we have to install both nodes from scratch?
    ~ Jukka ~

    Hi Jukka,
    Inaddition, before you build hyper-v failover cluster please refer to these requirements within the article below :
    http://technet.microsoft.com/en-us/library/jj863389.aspx
    Best Regards
    Elton Ji
    We
    are trying to better understand customer views on social support experience, so your participation in this
    interview project would be greatly appreciated if you have time.
    Thanks for helping make community forums a great place.

  • After adding 2nd WiSM and failing over AP's some apps don't work

    We have a dual core made up of 2 6513's. In 6513#1 we have WiSM#1 which we have had for sometime now. We have added a 2nd WiSM in 6513#2 for redundancy purposes also we are going to be re-configuring the WiSM in 6513#1 to more match that of the new WiSM in 6513#2. We have installed the new WiSM and failed over the AP's from 6513#1 so we can re-configure it's WiSM. The failover went great and no issues, with the exception that a web application or two didn't function from wireless clients and users were having issues getting to some mapped drives. The only difference from the new WiSM config vs the old WiSM is that on the old WiSM the AP's were in the same VLAN as the controller management interfaces. Now with the new WiSM it's configuration has the controllers AP mgt interfaces ip addresses in a different VLAN from the AP's, we are doing this based on Cisco best practices. If we revert the AP's back to the original WiSM/controllers the PC's where they are on the same vlan/subnet the applications and shares that were having issues the other way work. We have placed a call with Cisco TAC and they say our configs look good and we even sent them some packet captures and they said everything looks normal. The wireless clients can ping and resolve the server hosting the application database just fine.
    Thanks

    We did create the mobility groups, and we are using DHCP opt 43. The AP's find the 2nd WiSM#2 just fine and associate to the controllers and all the WLAN's work just fine. The only issue is that after the AP's are on the new WiSM and controllers there is an application or 2 that is having trouble locating it's database server and that some share's are not working. Again the only difference in this new setup in that now the AP's are on a different subnet/vlan from the controller mgt addresses where as before they were in the same subnet/vlan and the application and shares worked fine. It's almost like it is a bit of a routing issue?
    Thanks

  • How do the application servers connect the new database after failing over from primary DB to standby DB

    How do the application servers connect the new database after failing over from primary DB to standby DB?
    We have setup a DR environment with a standalone Primary server and a standalone Physical Standby server on RHEL Linux 6.4. Now our application team would like to know:
    When the primary DB server is crashed, the standy DB server will takeover the role of primary DB through the DataGuard fast failover. As the applications are connected by the primary DB IP before,currently the physical DB is used as a different IP or listener. If this is happened, they need to stop their application servers and re-configure their connection so the they coonect the new DB server, they cannot tolerate these workaround. 
    Whether does oracle have the better solution for this so that the application can automatically know the role's transition and change to the new IP without re-confige any connection and shutdown their application?
    Oracle support provides us the answer as following:
    ==================================================================
    Applications connected to a primary database can transparently failover to the new primary database upon an Oracle Data Guard role transition. Integration with Fast Application Notification (FAN) provides fast failover for integrated clients.
    After a failover, the broker publishes Fast Application Notification (FAN) events. These FAN events can be used in the following ways:
    Applications can use FAN without programmatic changes if they use one of these Oracle integrated database clients: Oracle Database JDBC, Oracle Database Oracle Call Interface (OCI), and Oracle Data Provider for .NET ( ODP.NET). These clients can be configured for Fast Connection Failover (FCF) to automatically connect to a new primary database after a failover.
    JAVA applications can use FAN programmatically by using the JDBC FAN application programming interface to subscribe to FAN events and to execute event handling actions upon the receipt of an event.
    FAN server-side callouts can be configured on the database tier.
    FAN events are published using Oracle Notification Services (ONS) and Oracle Streams Advanced Queuing (AQ).
    =======================================================================================
    Who has the experience and the related documentation or other solutions? we don't have the concept of about FAN.
    Thank very much in advance.

    Hi mesbeg,
    Thanks alot.
    For example, there is an application JBOSS server connecting the DB, we just added another datasource and put the standby IP into the configuration file except adding a service on DB side like this following:
            <subsystem xmlns="urn:jboss:domain:datasources:1.0">
            <datasources>
                    <datasource jta="false" jndi-name="java:/jdbc/idserverDatasource" pool-name="IDServerDataSource" enabled="true" use-java-context="true">
                        <connection-url>jdbc:oracle:thin:@<primay DB IP>:1521:testdb</connection-url>
                        <connection-url>jdbc:oracle:thin:@<standby DB IP>:1521:testdb</connection-url>
                        <driver>oracle</driver>
                        <pool>
                            <min-pool-size>2</min-pool-size>
                            <max-pool-size>10</max-pool-size>
                            <prefill>true</prefill>
                        </pool>
                        <security>
                            <user-name>TEST_USER</user-name>
                            <password>Password1</password>
                        </security>
                        <validation>
                            <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleValidConnectionChecker"/>
                            <validate-on-match>false</validate-on-match>
                            <background-validation>false</background-validation>
                            <use-fast-fail>false</use-fast-fail>
                            <stale-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleStaleConnectionChecker"/>
                            <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleExceptionSorter"/>
                        </validation>
                    </datasource>
                    <drivers>
                        <driver name="oracle" module="com.oracle.jdbc">
                            <xa-datasource-class>oracle.jdbc.OracleDriver</xa-datasource-class>
                        </driver>
                    </drivers>
                </datasources>
            </subsystem>
    If the failover is occurred, the JBOSS will automatically be pointed to the standby DB. Additional actions are not needed.

  • Load-balancing and fail-over between web containers and EJB containers

    When web components and EJB components are run in different OC4J instances, can we achieve load-balancing and fail-over between web containers and EJB containers?
    null

    It looks like there is clustering, but not loadbalancing available for rmi
    from the rmi.xml configuration. The application will treat any ejbs on the
    cluster as one-to-one look-ups. Orion will go out and get the first ejb
    available on the cluster. See the docs on configuring rmi.xml (and also the
    note below).
    That is a kind-of failover, because if machine A goes down, and the
    myotherAejbs.jar are on machine B too, orion will go out and get the bean
    from machine B when it can't find machine A. But it doesn't go machine A
    then machine B for each remote instance of the bean. You could also specify
    the maximum number of instances of a bean, and as one machine gets "loaded",
    orion would go to the next available machine...but that's not really
    loadbalancing.
    That is, you can set up your web-apps with ejbs, but let all of the ejbs be
    remote="true" in the orion-application.xml file:
    <?xml version="1.0"?>
    <!DOCTYPE orion-application PUBLIC "-//Evermind//DTD J2EE Application
    runtime 1.2//EN" "http://www.orionserver.com/dtds/orion-application.dtd">
    <orion-application deployment-version="1.5.2">
    <ejb-module remote="true" path="myotherAejbs.jar" />
    <ejb-module remote="true" path="myotherBejbs.jar" />
    <ejb-module remote="true" path="myotherCejbs.jar" />
    &ltweb-module id="mysite" path="mysite.war" />
    ... other stuff ...
    </orion-application>In the rmi.xml you would define your clustering:
    <cluster host="230.0.0.1" id="123" password="123abc" port="9127"
    username="cluster-user" />
    Tag that is defined if the application is to be clustered. Used to set up
    a local multicast cluster. A username and password used for the servers to
    intercommunicate also needs to be specified.
    host - The multicast host/ip to transmit and receive cluster data on. The
    default is 230.0.0.1.
    id - The id (number) of this cluster node to identify itself with in the
    cluster. The default is based on local machine IP.
    password - The password configured for cluster access. Needs to match that
    of the other nodes in the cluster.
    port - The port to transmit and receive cluster data on. The default is
    9127.
    username - The username configured for cluster access. Needs to match that
    of the other nodes in the cluster.

  • Multiple j-sessions for IOP fail-over?

    Weblogic has the ability to support multiple j-sessions to allow fail-over of the connection.
    My understanding is that this is not currently supported in IOP.
    When will IOP support multiple j-sessions?
    Is it possible to get a patch for this in the current version 11 of IOP?
    Thank you.

    That is part of the product roadmap to support multiple j-sessions for IOP fail over using Weblogic. That way, if the primary IOP server fails, the user can be re-routed to the backup server in a high-availability fashion. However, that is not supported currently, but will be over the next couple of releases.

  • Support for fail over/clustering?

    Is there any support for fail over/clustering Oracle on a two-node Linux cluster? Is it even possible to run Oracle on a two-node Linux cluster?

    To add more, I'm unsure whether an HA product is even needed once Oracle Releases Parallel Server. Also, is it possible to run Oracle w/o Parallel Server on a cluster? If so, what does that buy you?

  • Configuring Fail Over Clustering

    I was assigned to configure the New DIA Line for our Data Center for Fail over (Back Up)
    My Existing Line is - ISP ==} Router 2811 ==} Juniper SSG320 ==} Cisco Core Switch 6500
    For Back Up We get additional line. 
    How can I configure the Fail Over Clustering the new DIA Lines?
    Please see attached my Network Diagram.
    Thank you,
    Michael  

    Dear All,
    My problem is solved by disabling antivirus.
    thanks for the support
    Sunil
    SUNIL PATEL SYSTEM ADMINISTRATOR

  • Sun Identity Manger 8.0 and fail over..

    We are setting up a fail/recovery site for our Sun Identity Manager solution, I had pictured a seem less fail over, but that looks near impossible to do with oracle database. I had pictured load balanced Appserver, with load balanced data bases, sort of a multi-master like LDAP allows..
    Curious what others are using for a fail over site / setup.
    Thanks

    We're using 7.0. For us failover is basically mulitple servers all using the same DB repository, with a "smart" loadbalancer in front of them (smart meaning, able to detect which back end servers are responsive).
    IdM doesn't use any inter-server temp-data synchronization, all the servers running off the same repository communicate by committing changes to the database.
    So if a specific IdM instance dies, on the next page load the user will be redirected to a new server. That server will redirect to the login page and ask the user to re-auth, with the desired page placed after login.jsp as a "nextPage" argument. After (re-)logging in, the user's returned to the page they were trying to get to. However, in-progress edits that had not been committed back to the database will be lost.
    We looked at high availability arrangements where valid sessions are shared across a new server, but fundamentally the limitation is that the app servers still don't sync in-progress edits, so the only difference between an HA environment and a more passive fail-over environment (like ours) is that in an HA environment the user doesn't have to re-login on a server failure; they still lose in-progress edits. So HA didn't seem like it added value to us.
    If you are literally talking about an off-site, completely standby, seamless failover site, I agree I don't see how you would do that. I'd expect that you'd need the offsite setup to be a cold-standby site; configured to use the replicated database, but with the apps powered down until you actually need them. Otherwise, I think you'd have problems with the standby site servers not wanting to "standby". You could ensure no users end up on the standby servers, but background processes are likely to be run across both the primary and the standby services; I don't think you can enforce an "idle but running" status for the standby servers.
    Edited by: etech on Feb 4, 2009 7:37 PM

  • 2960 and fail over

    I am going to hook a 2960 to a wireless antenna and have a backup T-1 to use for fail-over. Can a 2960 do this function?
    Shannon

    It could if any of the 2960 have a WAN interface such as T1 but it does not and since it's a switch.

  • Load Balance Network Cards and Fail over services

    Hi,
    Im looking at setting up 2 MAC server each with basic services (ie AFP, Open Driectory, software updates and DHCP)
    Both servers are less then 12 months old and are both attached with GB ports to the RAID where all the user data is stored.
    My questions is how to I setup the 2 network interface cards to act as one and load balance the traffic accross both interfaces?
    also I was wondering if it was possible to fail over AFP services, so if one server went down the other would pickup file services where it left off?
    I know how to fail over OD and the other services dont matter to much.
    Thanks in advance for your assistance

    My questions is how to I setup the 2 network interface cards to act as one and load balance the traffic accross both interfaces?
    This is simple link aggregation in System Preferences -> Network
    Click the + button at the bottom and choose new Link Aggregate. Choose the existing interfaces (presumably en0 and en1) and you're set.
    Note that this requires support in the switch the server is connected to (it needs to support LACP), and that you will bounce your network connection when you set this up (so don't do it when the server is actively servicing clients)
    also I was wondering if it was possible to fail over AFP services, so if one server went down the other would pickup file services where it left off?
    It's possible, but you need to be very careful with regards to data integrity. For example, typically each server is going to have a local directory (or directories) that are shared. If Server A fails and Server B takes over, how do you intend to ensure that Server B's data is up-to-date, especially with regard to files that might have been in use at the time?
    It's a tricky problem to solve without putting the data on a shared storage device using something like XSAN to manage arbitration, and now you could be talking serious $$$s.
    I'd recommend looking closely at your file serving needs and work out if it's necessary, or whether you could get by with dividing the load across servers (e.g. some sharepoints are on one server, other sharepoints on the other) so that only a subset of your users are impacted should one server fail.
    File synchronization/replication is a major issue (read $$$$$) for a lot of companies.

  • Forms load balancing and fail-over

    Using cisco context switches instead of metric server/metric client. Having trouble making forms fail-over when a 9ias server fails. Has anybody done this?
    If so, how?

    Using cisco context switches instead of metric server/metric client. Having trouble making forms fail-over when a 9ias server fails. Has anybody done this?
    If so, how?

  • BPEL, clustering and fail over

    How is failure of a BPEL PM node monitored so that in-flight processes can be automatically restarted on one of the surviving PM nodes?

    BPEL PM has a built-in retry mechanism and end-point load balancing:
    <partnerLinkBinding name="RatingService">
    <property name="wsdlLocation">
    http://localhost:8080/axis/services/RatingService1?wsdl
    http://localhost:8080/axis/services/RatingService2?wsdl
    </property>
    </partnerLinkBinding>
    <partnerLinkBinding name="FlakyService">
    <property name="wsdlLocation">http://localhost:8080/axis/services/FlakyService?wsdl</property>
    <property name="location">http://localhost:2222/axis/services/FlakyService</property>
    <property name="retryCount">2</property>
    <property name="retryInterval">60</property>
    </partnerLinkBinding>
    Please refer to the Resilient Flow Demo for more information, packaged in the product and documented on OTN, for more information:
    http://www.oracle.com/technology/products/ias/bpel/htdocs/orabpel_technotes.tn007.html

  • Re: Connected Environments and Fail/Over

    Hi,
    Yes, the SO in P1 is a session-duration, and I catch the
    DistributedAccessException
    and I retry the call in the exception handler, so that Forte directs me
    to the next
    available replicate. But I still get a DistributedAccessException on the
    retry from my
    P2 server partition, while the client partitions reconnect successfully.
    After further investigation, the difference between the P2 server
    partition and the client
    ones was that the clients had a -fns ServerA:5000;ServerB:5000 in their
    shortcut.
    After removing this option, the clients fail on the retry just like P2
    does, which
    proves that the -fns option is not used only on partition startup, but
    has a
    greater meaning behind the scenes
    The next step was thus to add the -fns option to the P2 server partition,
    but then,
    when retrying the call from the exception handler, the partition either
    hangs
    or terminates with the following error :
    WARNING: Task [6443A488-9C05-11D1-A703-A8262ADEAA77:0x1bc, 6] (cm.Recv)
    terminated while still holding mutex(es).
    Locks were cancelled - shared data may be corrupted.
    Cancelled mutex: do.NsClient (0x166fd38)
    FATAL ERROR: Internal mutex corrupted - terminating partition
    Any thoughts ?
    Vincent Figari
    You don't need to buy Internet access to use free Internet e-mail.
    Get completely free e-mail from Juno at http://www.juno.com
    Or call Juno at (800) 654-JUNO [654-5866]

    Hi,
    Yes, the SO in P1 is a session-duration, and I catch the
    DistributedAccessException
    and I retry the call in the exception handler, so that Forte directs me
    to the next
    available replicate. But I still get a DistributedAccessException on the
    retry from my
    P2 server partition, while the client partitions reconnect successfully.
    After further investigation, the difference between the P2 server
    partition and the client
    ones was that the clients had a -fns ServerA:5000;ServerB:5000 in their
    shortcut.
    After removing this option, the clients fail on the retry just like P2
    does, which
    proves that the -fns option is not used only on partition startup, but
    has a
    greater meaning behind the scenes
    The next step was thus to add the -fns option to the P2 server partition,
    but then,
    when retrying the call from the exception handler, the partition either
    hangs
    or terminates with the following error :
    WARNING: Task [6443A488-9C05-11D1-A703-A8262ADEAA77:0x1bc, 6] (cm.Recv)
    terminated while still holding mutex(es).
    Locks were cancelled - shared data may be corrupted.
    Cancelled mutex: do.NsClient (0x166fd38)
    FATAL ERROR: Internal mutex corrupted - terminating partition
    Any thoughts ?
    Vincent Figari
    You don't need to buy Internet access to use free Internet e-mail.
    Get completely free e-mail from Juno at http://www.juno.com
    Or call Juno at (800) 654-JUNO [654-5866]

Maybe you are looking for

  • Secure link to iTunes Store failed. tried many options, none have worked.

    Hey I just got the monitor for my computer back (its the same one, it was taken away for about a week or so) and when I go to the Music store, I basically cant do anything BUT browse around the store. I cant buy anything, and if I try to, it says unk

  • How can I transfer songs from my iPhone without wiping the iPhone?

    I have two computers. My original is a basic Dell that's really getting old and the other is a new one I custom built a year ago. My first computer, which I had all my iTunes stuff on, has started dying so I've decided to transfer all my music and iT

  • Few questions about UCM in workflow and migration

    1)For workflow is there a way to search for items not yet released, if not could someone maybe point me to a way customize the "Active Workflows" page to change the column. 2)While migrating some tables for drop down selection I noticed the table tra

  • Missing disk in Time Capsule

    Hi, everyone. This is my first post. I bought a 500G Time Capsule April 2008 and suddenly I cannot mount my disk when my Time Machine is doing a back up. I contact my local distributor and what they told me is that Apple would replace it with a new o

  • Urgent --report urgent

    Hallo very urgent   i would like to have the master data "relationsship" included in the BW report. It is important information for me when user plan production, as both preparation, processing and cleaning time as well as the "delay" between the sta