[jboss-user] [JBoss Cache: Core Edition] - Re: ClusteredCacheLoader

lovelyliatroim do-not-reply at jboss.com
Mon May 19 05:11:14 EDT 2008


Config is like so


  | <server>
  | 
  | 
  | <!-- ==================================================================== -->
  |    <!-- NON PERSISTENT CACHE CONFIG                                     -->
  |    <!-- ==================================================================== -->
  | 
  |    <mbean code="org.jboss.cache.jmx.CacheJmxWrapper"
  |           name="jboss.cache:service=CMDSNonPersistentCache">
  | 
  |       <depends>jboss:service=Naming</depends>
  |       <depends>jboss:service=TransactionManager</depends>
  | 
  |       <!--
  |           Configure the TransactionManager
  |       
  |       <attribute name="TransactionManagerLookupClass">org.jboss.cache.transaction.GenericTransactionManagerLookup
  |       </attribute>
  | -->
  | 
  | 	  
  | 	   
  |  <!--
  |           Node locking level : SERIALIZABLE
  |                                REPEATABLE_READ (default)
  |                                READ_COMMITTED
  |                                READ_UNCOMMITTED
  |                                NONE
  |       -->     
  |       <attribute name="IsolationLevel">REPEATABLE_READ</attribute>
  | 
  |      <!--
  |            Valid modes are LOCAL
  |                            REPL_ASYNC
  |                            REPL_SYNC
  |                            INVALIDATION_ASYNC
  |                            INVALIDATION_SYNC
  |       -->
  | 	  <attribute name="CacheMode">REPL_ASYNC</attribute>
  | 
  |       <!-- Name of cluster. Needs to be the same for all clusters, in order
  |            to find each other
  |       -->
  |       <attribute name="ClusterName">CMDS-Cluster</attribute>
  | 
  |       <!-- JGroups protocol stack properties NOT NEEDED since CacheMode is LOCAL -->
  | 
  |       <!--
  |           The max amount of time (in milliseconds) we wait until the
  |           state (ie. the contents of the cache) are retrieved from
  |           existing members in a clustered environment
  |       -->
  |       <attribute name="StateRetrievalTimeout">20000</attribute>
  | 
  |       <!--
  |           Number of milliseconds to wait until all responses for a
  |           synchronous call have been received.
  |       -->
  |       <attribute name="SyncReplTimeout">20000</attribute>
  | 
  |       <attribute name="FetchInMemoryState">false</attribute>
  | 
  | 	    
  | 	   
  |       <!-- Max number of milliseconds to wait for a lock acquisition -->
  |       <attribute name="LockAcquisitionTimeout">15000</attribute>
  | 
  | 	   <attribute name="ClusterConfig">
  |          <config>
  |             <UDP mcast_addr="228.10.10.10"
  |                  mcast_port="45588"
  |                  tos="8"
  |                  ucast_recv_buf_size="20000000"
  |                  ucast_send_buf_size="640000"
  |                  mcast_recv_buf_size="25000000"
  |                  mcast_send_buf_size="640000"
  |                  loopback="false"
  |                  discard_incompatible_packets="true"
  |                  max_bundle_size="64000"
  |                  max_bundle_timeout="30"
  |                  use_incoming_packet_handler="true"
  |                  ip_ttl="2"
  |                  enable_bundling="false"
  |                  enable_diagnostics="true"
  | 
  |                  use_concurrent_stack="true"
  | 
  |                  thread_naming_pattern="pl"
  | 
  |                  thread_pool.enabled="true"
  |                  thread_pool.min_threads="1"
  |                  thread_pool.max_threads="25"
  |                  thread_pool.keep_alive_time="30000"
  |                  thread_pool.queue_enabled="true"
  |                  thread_pool.queue_max_size="10"
  |                  thread_pool.rejection_policy="Run"
  | 
  |                  oob_thread_pool.enabled="true"
  |                  oob_thread_pool.min_threads="1"
  |                  oob_thread_pool.max_threads="4"
  |                  oob_thread_pool.keep_alive_time="10000"
  |                  oob_thread_pool.queue_enabled="true"
  |                  oob_thread_pool.queue_max_size="10"
  |                  oob_thread_pool.rejection_policy="Run"/>
  | 
  |             <PING timeout="2000" num_initial_members="3"/>
  |             <MERGE2 max_interval="30000" min_interval="10000"/>
  |             <FD_SOCK/>
  |             <FD timeout="10000" max_tries="5" shun="true"/>
  |             <VERIFY_SUSPECT timeout="1500"/>
  |             <pbcast.NAKACK max_xmit_size="60000"
  |                            use_mcast_xmit="false" gc_lag="0"
  |                            retransmit_timeout="300,600,1200,2400,4800"
  |                            discard_delivered_msgs="true"/>
  |             <UNICAST timeout="300,600,1200,2400,3600"/>
  |             <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
  |                            max_bytes="400000"/>
  |             <pbcast.GMS print_local_addr="true" join_timeout="5000"
  |                         join_retry_timeout="2000" shun="false"
  |                         view_bundling="true" view_ack_collection_timeout="5000"/>
  |             <FRAG2 frag_size="60000"/>
  |             <pbcast.STREAMING_STATE_TRANSFER use_reading_thread="true"/>
  |             <!-- <pbcast.STATE_TRANSFER/> -->
  |             <pbcast.FLUSH timeout="0"/>
  |          </config>
  |       </attribute>
  | 	   
  | 	   	   <!-- Specific eviction policy configurations. This is LRU -->
  | 	   <attribute name="EvictionPolicyConfig">
  |          <config>
  |             <attribute name="wakeUpIntervalSeconds">5</attribute>
  |             <attribute name="eventQueueSize">200000</attribute>
  |             <attribute name="policyClass">org.jboss.cache.eviction.LRUPolicy</attribute>
  | 
  |             <region name="/_default_">
  |                <attribute name="maxNodes">500000</attribute>
  |                <attribute name="timeToLiveSeconds">900</attribute>
  |             </region>
  | 			 
  | 			<region name="/ricIds" policyClass="org.jboss.cache.eviction.ExpirationPolicy">
  |                   <attribute name="maxNodes">50000</attribute>
  |             </region>
  |  			<region name="/quotes" policyClass="org.jboss.cache.eviction.ExpirationPolicy">
  |                   <attribute name="maxNodes">50000</attribute>
  |             </region>
  |  			
  | 		<!--There are other regions configured but have removed them for simplicity -->	 			
  | 			 
  | 			  
  | 		  </config>
  |       </attribute>
  | 
  | 	   
  | 	   <attribute name="CacheLoaderConfig" replace="false">
  |          <config>
  | 			<cacheloader>
  | 				<class>org.jboss.cache.loader.ClusteredCacheLoader</class>
  | 					<properties>
  | 						timeout=15000
  | 					</properties>
  | 			</cacheloader>
  |          </config>
  | 	</attribute>
  | 
  |    </mbean>
  | 
  | </server>
  | 

/ricIds = /b/c/d/e (Given in example)
/quotes = /a/b.





anonymous wrote : 
  | 
  | Do you see this with other cache loaders as well (e.g., FileCacheLoader)? 
  | 
  | 
When i get the time i will try it out and let you know how it goes.


What i do see alot of entries on the log file is for this


anonymous wrote : 
  | 11:07:26 [EvictionTimer-0] WARN  eviction.ExpirationAlgorithm  - Unable to remove nodes to reduce region size below 50000.  Set expiration for nodes in this region
Now why would i get this warning when the cache is practically empty?? Might and mightnt be related!!


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