2 Replies Latest reply on Jun 6, 2005 11:37 AM by kbisla

    JBossCache running on windows & linux

    kbisla Newbie

      I'm running one jboss cache node on a linux and the other on windows and for some reason they don't seem to see each other. Here's how the set up looks
      the cache-service.xml is using multicast, repl_sync.
      I have checked that the multicast is working.
      using :
      java org.jgroups.test.McastReceiverTest -mcast_addr -port
      java org.jgroups.test.McastSenderTest -mcast_addr -port
      multicast seems to work. the same cache-service.xml is on windows as well as linux (that would take care of incorrect culter name in the xml).
      Now if i start an extra node each of the os the node in the same os can see each other and form a group.
      So the next thing i did was to run just the McastReceiverTest on the started the cache node on linux and win, here's something i found interesting McastReceiverTest shows constant messages being received from linux cache but absolutely nothing from the windows cache node.
      Also on windows the UDP tag's loopback attribute is set to true in the cache config.
      Is there something i'm missing here.

      Any pointers would be helpful.

      <?xml version="1.0" encoding="UTF-8"?>
      <!-- ===================================================================== -->
      <!-- -->
      <!-- Sample TreeCache Service Configuration -->
      <!-- -->
      <!-- ===================================================================== -->
       <classpath codebase="./lib" archives="jboss-cache.jar, jgroups.jar"/>
       <!-- ==================================================================== -->
       <!-- Defines TreeCache configuration -->
       <!-- ==================================================================== -->
       <mbean code="org.jboss.cache.TreeCache"
       Configure the TransactionManager
       <attribute name="TransactionManagerLookupClass">org.jboss.cache.DummyTransactionManagerLookup</attribute>
       Isolation level : SERIALIZABLE
       REPEATABLE_READ (default)
       <attribute name="IsolationLevel">REPEATABLE_READ</attribute>
       Valid modes are LOCAL, REPL_ASYNC and REPL_SYNC
       <attribute name="CacheMode">REPL_SYNC</attribute>
       Just used for async repl: use a replication queue
       <attribute name="UseReplQueue">false</attribute>
       Replication interval for replication queue (in ms)
       <attribute name="ReplQueueInterval">0</attribute>
       Max number of elements which trigger replication
       <attribute name="ReplQueueMaxElements">0</attribute>
       <!-- Name of cluster. Needs to be the same for all clusters, in order
       to find each other
       <attribute name="ClusterName">TreeCache-Cluster</attribute>
       <!-- JGroups protocol stack properties. Can also be a URL,
       e.g. file:/home/bela/default.xml
       <attribute name="ClusterProperties"></attribute>
       <attribute name="ClusterConfig">
       <!-- UDP: if you have a multihomed machine,
       set the bind_addr attribute to the appropriate NIC IP address, e.g bind_addr=""
       <!-- 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="" mcast_port="45566"
       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"
       <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" />-->
       <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"
       <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
       <attribute name="FetchStateOnStartup">true</attribute>
       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
       <attribute name="InitialStateRetrievalTimeout">5000</attribute>
       Number of milliseconds to wait until all responses for a
       synchronous call have been received.
       <attribute name="SyncReplTimeout">10000</attribute>
       <!-- Max number of milliseconds to wait for a lock acquisition -->
       <attribute name="LockAcquisitionTimeout">15000</attribute>
       <!-- Name of the eviction policy class. Not supported now. -->
       <attribute name="EvictionPolicyClass"></attribute>
       <attribute name="CacheLoaderClass">org.jboss.cache.loader.bdbje.BdbjeCacheLoader</attribute>
       <attribute name="CacheLoaderConfig">c:\tmp\bdbje</attribute>
       <attribute name="CacheLoaderShared">true</attribute>
       <attribute name="CacheLoaderPreload">/</attribute>
       <attribute name="CacheLoaderClass">org.jboss.cache.loader.FileCacheLoader</attribute>
       <attribute name="CacheLoaderConfig">c:\tmp</attribute>
       <attribute name="CacheLoaderShared">true</attribute>
       <attribute name="CacheLoaderPreload">/</attribute>
       <!-- Uncomment to get a graphical view of the TreeCache MBean above -->
       <!-- <mbean code="org.jboss.cache.TreeCacheView" name="jboss.cache:service=TreeCacheView">-->
       <!-- <depends>jboss.cache:service=TreeCache</depends>-->
       <!-- <attribute name="CacheService">jboss.cache:service=TreeCache</attribute>-->
       <!-- </mbean>-->

        • 1. Re: JBossCache running on windows & linux
          Bela Ban Master

          Why don't you try with a simple JGroups demo first, e.g.
          with ViewDemo ?
          Do you have the firewall on Linux disabled ?

          • 2. Re: JBossCache running on windows & linux
            kbisla Newbie

            I tried the McastReceiverTest and McastSenderTest
            which seem to work between windows & linux.
            I would think the running of Mcast*Test proves the plumbing is fine, so doing ViewDemo is just doing the same thing, right ?

            Also i think linux firewall isn't the issue here cause as i said in the original post, after starting both the cache nodes, i start the McastReceiverTest on windows, the McastReceiverTest reports calls to the mutlicast address only from linux cache node.

            Which brings up a question as to why the cache node in windows not sending cache message to the multicast address ?