[jboss-user] [JBossCache] - FetchInMemoryState && InitialStateRetrievalTimeout

Sancheski do-not-reply at jboss.com
Mon Mar 10 08:01:35 EDT 2008


Hi guys

I am facing a problem when trying to get the state from cache in a 2-clustered cache enviroment. What a I get from the node which is starting and trying to get the state from another node in the cluster is:

2008-03-10 11:01:20,630 WARN  [org.jboss.system.ServiceController] Problem starting service jboss.cache:service=ServicesDataCache
  | org.jboss.cache.CacheException: Initial state transfer failed: Channel.getState() returned false

As I saw in http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossCacheTroubleshooting  I increased the InitialStateRetrievalTimeout parameter in the cache configuration file and everything worked fine. 
Then, I wanted to test setting the parameter FetchInMemoryState to false so I could test a different solution (in my case, I do not care using a cold loading cache) What I got from this test is that some cache attributes (around 55000) were transferred to the cache that is starting (there are around 90000 attributes in the other node)
Perhaps, I am missing some configuration parameter. I am using Jboss Cache 1.4.1.SP8 and JbossAS 4.2.2.GA. Here is my  cache config file: 


  | <?xml version="1.0" encoding="UTF-8"?>
  | 
  | <!-- ===================================================================== -->
  | <!--                                                                       -->
  | <!--  ServicesCache Service Configuration                		               -->
  | <!--                                                                       -->
  | <!-- ===================================================================== -->
  | 
  | <server>
  | 
  | 	<classpath codebase="./lib" archives="jboss-cache.jar, jgroups.jar" />
  | 
  | 
  | 	<!-- ==================================================================== -->
  | 	<!-- Defines TreeCache configuration                                      -->
  | 	<!-- ==================================================================== -->
  | 
  | 
  | 	<mbean code="org.jboss.cache.TreeCache"
  | 		name="jboss.cache:service=ServicesDataCache">
  | 
  | 		<depends>jboss:service=Naming</depends>
  | 		<depends>jboss:service=TransactionManager</depends>
  | 
  | 		<attribute name="TransactionManagerLookupClass">
  | 			org.jboss.cache.JBossTransactionManagerLookup
  | 		</attribute>
  | 
  | 		<!--
  | 			Isolation level : SERIALIZABLE
  | 			REPEATABLE_READ (default)
  | 			READ_COMMITTED
  | 			READ_UNCOMMITTED
  | 			NONE
  | 		-->
  | 		<attribute name="IsolationLevel">NONE</attribute>
  | 
  | 		<!--
  | 			Valid modes are LOCAL
  | 			REPL_ASYNC
  | 			REPL_SYNC
  | 			INVALIDATION_ASYNC
  | 			INVALIDATION_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">
  | 			SOMServicesCache-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">
  | 			<config>
  | 				<!-- 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="${jboss.cache.ServicesCache.addr:228.1.2.3}"
  | 					mcast_port="${jboss.cache.ServicesCache.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" />
  | 				<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" 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" />
  | 			</config>
  | 		</attribute>
  | 
  | 
  | 		<!--
  | 			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.
  | 		-->
  | 		<attribute name="FetchInMemoryState">false</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">15000</attribute>
  | 
  | 		<!--
  | 			Number of milliseconds to wait until all responses for a
  | 			synchronous call have been received.
  | 		-->
  | 		<attribute name="SyncReplTimeout">15000</attribute>
  | 
  | 		<!-- Max number of milliseconds to wait for a lock acquisition -->
  | 		<attribute name="LockAcquisitionTimeout">10000</attribute>
  | 
  | 		<!-- Name of the eviction policy class. -->
  | 		<attribute name="EvictionPolicyClass">
  | 			org.jboss.cache.eviction.LRUPolicy
  | 		</attribute>
  | 		
  | 		<!-- Specific eviction policy configurations. This is LRU -->
  | 		<attribute name="EvictionPolicyConfig">
  | 			<config>
  | 				<!--  This attribute will be share by all eviction policies -->
  | 				<attribute name="wakeUpIntervalSeconds">30</attribute>	
  | 				<!-- Cache wide default 86400-->
  | 	            <region name="/_default_">
  | 	                  <attribute name="maxNodes">100000</attribute>
  | 	                  <attribute name="timeToLiveSeconds">86400</attribute>
  | 	            </region>			
  | 			</config>
  | 		</attribute>
  | 
  | 
  | 		<!--
  | 			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".
  | 		-->
  | 
  | 		<attribute name="UseRegionBasedMarshalling">true</attribute>
  | 		<attribute name="InactiveOnStartup">false</attribute>
  | 
  | 		<attribute name="CacheLoaderConfiguration">
  | 			<config>
  | 				<passivation>false</passivation>
  | 				<preload>/</preload>
  | 				<shared>true</shared>
  | 
  | 				<cacheloader>
  | 					<class>
  | 						org.jboss.cache.loader.ClusteredCacheLoader
  | 					</class>
  | 					<properties>timeout=1000</properties>
  | 					<async>true</async>
  | 					<fetchPersistentState>false</fetchPersistentState>
  | 					<ignoreModifications>false</ignoreModifications>
  | 
  | 				</cacheloader>
  | 
  | 			</config>
  | 		</attribute>
  | 
  | 
  | 	</mbean>
  | 
  | 
  | 	<!--  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>-->
  | 
  | 
  | </server>
  | 
  | 


Hope you could help me. 
Thanks in advance



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