0 Replies Latest reply on Jul 18, 2008 2:19 AM by Rama lakshmi

    Need a healp in configuring CacheLoders

    Rama lakshmi Newbie

      Hi,

      How can i configure both JDBCCacheLoader and TcpDelegatingCacheLoader.


      <?xml version="1.0" encoding="UTF-8"?>

      <!-- ===================================================================== -->
      <!-- -->
      <!-- Sample TreeCache Service Configuration -->
      <!-- -->
      <!-- ===================================================================== -->





      <!-- ==================================================================== -->
      <!-- Defines TreeCache configuration -->
      <!-- ==================================================================== -->

      <depends optional-attribute-name="Cache" proxy-type="attribute">jboss.cache:service=HttpCache
      jboss:service=Naming
      jboss:service=TransactionManager

      ${jboss.bind.address:15.76.223.144}
      7001

      <!--
      Configure the TransactionManager
      -->

      org.jboss.cache.GenericTransactionManagerLookup

      <!--
      Isolation level : SERIALIZABLE
      REPEATABLE_READ (default)
      READ_COMMITTED
      READ_UNCOMMITTED
      NONE
      -->
      READ_COMMITTED

      <!--
      Valid modes are LOCAL
      REPL_ASYNC
      REPL_SYNC
      INVALIDATION_ASYNC
      INVALIDATION_SYNC
      -->
      REPL_SYNC

      <!--
      Just used for async repl: use a replication queue
      -->
      false

      <!--
      Replication interval for replication queue (in ms)
      -->
      0

      <!--
      Max number of elements which trigger replication
      -->
      0

      <!-- Name of cluster. Needs to be the same for all clusters, in order
      to find each other
      -->
      cache_cluster

      <!-- JGroups protocol stack properties. Can also be a URL,
      e.g. file:/home/bela/default.xml

      -->



      <!-- UDP: if you have a multihomed machine,
      set the bind_addr attribute to the appropriate NIC IP address, e.g bind_addr="192.168.0.2"
      -->
      <!-- UDP: On Windows machines, because of the media sense feature
      being broken with multicast (even after disabling media sense)
      set the loopback attribute to true -->
      <UDP mcast_addr="228.4.5.6" mcast_port="48866"
      ip_ttl="64" ip_mcast="true"
      mcast_send_buf_size="150000" mcast_recv_buf_size="80000"
      ucast_send_buf_size="150000" ucast_recv_buf_size="80000"
      loopback="false" bind_addr="15.76.223.144" />
      <PING timeout="2000" num_initial_members="3"
      up_thread="false" down_thread="false"/>
      <MERGE2 min_interval="10000" max_interval="20000"/>
      <!-- <FD shun="true" up_thread="true" down_thread="true" />-->
      <FD_SOCK/>
      <VERIFY_SUSPECT timeout="1500"
      up_thread="false" down_thread="false"/>
      <pbcast.NAKACK gc_lag="50" retransmit_timeout="600,1200,2400,4800"
      max_xmit_size="8192" up_thread="false" down_thread="false"/>
      <UNICAST timeout="600,1200,2400" window_size="100" min_threshold="10"
      down_thread="false"/>
      <pbcast.STABLE desired_avg_gossip="20000"
      up_thread="false" down_thread="false"/>
      <FRAG frag_size="8192"
      down_thread="false" up_thread="false"/>
      <pbcast.GMS join_timeout="5000" join_retry_timeout="2000"
      shun="true" print_local_addr="true"/>
      <pbcast.STATE_TRANSFER up_thread="true" down_thread="true"/>




      <!--
      Whether or not to fetch state on joining a cluster
      NOTE this used to be called FetchStateOnStartup and has been renamed to be more descriptive.
      -->
      true

      <!--
      The max amount of time (in milliseconds) we wait until the
      initial state (ie. the contents of the cache) are retrieved from
      existing members in a clustered environment
      -->
      15000

      <!--
      Number of milliseconds to wait until all responses for a
      synchronous call have been received.
      -->
      15000

      <!-- Max number of milliseconds to wait for a lock acquisition -->
      10000

      <!-- TCPDelegatingCacheLoader -->





      <!--
      Indicate whether to use region based marshalling or not. Set this to true if you are running under a scoped
      class loader, e.g., inside an application server. Default is "false".
      -->


      <!-- if passivation is true, only the first cache loader is used; the rest are ignored -->
      false
      <!-- comma delimited FQNs to preload -->
      /
      <!-- are the cache loaders shared in a cluster? -->
      true

      <!-- we can now have multiple cache loaders, which get chained -->


      org.jboss.cache.loader.tcp.TcpDelegatingCacheLoader

      host=15.76.223.144
      port=7001


      <!-- the 'cacheloader' element may be repeated -->


      org.jboss.cache.loader.JDBCCacheLoader
      <!-- same as the old CacheLoaderConfig attribute -->

      cache.jdbc.table.name=JCACHE
      cache.jdbc.table.create=false
      cache.jdbc.table.drop=false
      cache.jdbc.fqn.column=fqn
      cache.jdbc.fqn.type=varchar(500)
      cache.jdbc.node.column=node
      cache.jdbc.node.type=blob
      cache.jdbc.parent.column=parent
      cache.jdbc.driver=oracle.jdbc.OracleDriver
      cache.jdbc.url=jdbc:oracle:thin:@sdp3pf1.india.hp.com:1521:TPFDB
      cache.jdbc.user=lakshmi
      cache.jdbc.password=lakshmi
      cache.jdbc.datasource=tpfDBDS

      <!-- whether the cache loader writes are asynchronous -->
      false
      <!-- only one cache loader in the chain may set fetchPersistentState to true.
      An exception is thrown if more than one cache loader sets this to true. -->
      true
      <!-- determines whether this cache loader ignores writes - defaults to false. -->
      false
      <!-- if set to true, purges the contents of this cache loader when the cache starts up.
      Defaults to false. -->
      false











      when I configure as above iam getting the following exception.


      java.io.EOFException
      at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream
      .java:2232)
      at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputS
      tream.java:2698)
      at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:750
      )
      at java.io.ObjectInputStream.(ObjectInputStream.java:268)
      at org.jboss.cache.loader.tcp.TcpDelegatingCacheLoader.init(TcpDelegatin
      gCacheLoader.java:109)
      at org.jboss.cache.loader.tcp.TcpDelegatingCacheLoader.start(TcpDelegati
      ngCacheLoader.java:86)
      at org.jboss.cache.loader.ChainingCacheLoader.start(ChainingCacheLoader.
      java:377)
      at org.jboss.cache.loader.CacheLoaderManager.startCacheLoader(CacheLoade
      rManager.java:353)
      at org.jboss.cache.TreeCache.startService(TreeCache.java:1535)
      at jsp_servlet.__jcache.createCache(__jcache.java:125)
      at jsp_servlet.__jcache._jspService(__jcache.java:480)
      at weblogic.servlet.jsp.JspBase.service(JspBase.java:34)
      at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run
      (StubSecurityHelper.java:223)
      at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecuri
      tyHelper.java:125)
      at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.jav
      a:283)
      at weblogic.servlet.internal.ServletStubImpl.onAddToMapException(Servlet
      StubImpl.java:391)
      at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.jav
      a:309)
      at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.jav
      a:175)

      plz healp me out how to configure both the CacheLoders.

      Thanks,
      Ramalakshmi