9:20 a.m.
Hi all!
I'm having problems with Jboss Cache 1.4 GA (running under JBoss 4.0.4GA with JGroups
2.2.9.3).
The cache is deployed as mbean in JBoss and then it's "fetched" in a
war-app. Beacuse of this we are using RegionBasedMarshalling.
The cache is also configured to use a ReplQueue and it looks like this combo is causing
trouble. If I disable the ReplQueue it works just fine, and if I disable the
RegionBasedMarshalling the ReplQueue works.
The error I get (when using ReplQueueMaxElements=2 and ReplQueueInterval=0) is:
| 15:42:25,814 ERROR [RpcDispatcher] exception=java.lang.IllegalArgumentException:
LegacyTreeCacheMarshaller.extractFqn(): Unknown method call name: _replicate
| 15:42:25,814 ERROR [ReplicationQueue] failed replicating 2 elements in replication
queue
| java.io.NotSerializableException: RpcDispatcher returned a null. This is most often
caused by args for _replicate([_replicate(_put(null, /status, 10.60.15.101:4629,
com.hm.website.core.cache.status.SystemStatus@10e0904, true)), _replicate(_put(null,
/objects/com/hm/website/domain/navigation/NavigationNode/OBJECTS, working,
com.hm.website.domain.navigation.ActionPageNavigationNode@1ba67ec, true))]) not being
serializable.
| at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4166)
| at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4113)
| at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4221)
| at org.jboss.cache.ReplicationQueue.flush(ReplicationQueue.java:149)
| at org.jboss.cache.ReplicationQueue.add(ReplicationQueue.java:131)
| at
org.jboss.cache.interceptors.BaseRpcInterceptor.putCallOnAsyncReplicationQueue(BaseRpcInterceptor.java:130)
| at
org.jboss.cache.interceptors.BaseRpcInterceptor.replicateCall(BaseRpcInterceptor.java:98)
| at
org.jboss.cache.interceptors.BaseRpcInterceptor.replicateCall(BaseRpcInterceptor.java:88)
| at
org.jboss.cache.interceptors.ReplicationInterceptor.handleReplicatedMethod(ReplicationInterceptor.java:114)
| at
org.jboss.cache.interceptors.ReplicationInterceptor.invoke(ReplicationInterceptor.java:83)
| at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68)
| at
org.jboss.cache.interceptors.TxInterceptor.handleNonTxMethod(TxInterceptor.java:345)
| at org.jboss.cache.interceptors.TxInterceptor.invoke(TxInterceptor.java:156)
| at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68)
| at
org.jboss.cache.interceptors.CacheMgmtInterceptor.invoke(CacheMgmtInterceptor.java:157)
| at org.jboss.cache.TreeCache.invokeMethod(TreeCache.java:5517)
| at org.jboss.cache.TreeCache.put(TreeCache.java:3677)
|
| .....
|
And this strange error occurs when I use ReplQueueInterval=1000
| 16:06:56,855 ERROR [RpcDispatcher] exception=java.lang.IndexOutOfBoundsException:
Index: 0, Size: 0
| 16:06:56,886 ERROR [ReplicationQueue] failed replicating 0 elements in replication
queue
| java.io.NotSerializableException: RpcDispatcher returned a null. This is most often
caused by args for _replicate([]) not being serializable.
| at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4166)
| at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4113)
| at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4221)
| at org.jboss.cache.ReplicationQueue.flush(ReplicationQueue.java:149)
| at org.jboss.cache.ReplicationQueue$MyTask.run(ReplicationQueue.java:158)
| at java.util.TimerThread.mainLoop(Timer.java:512)
| at java.util.TimerThread.run(Timer.java:462)
|
So, is there a known issue with this combo?
I tried debugging the cache (callRemoteMethods(List mbrs, MethodCall method_call, int
mode, boolean exclude_self, long timeout) in TreeCache.java) and it seems like the problem
is with the LegacyTreeCacheMarshaller. Should it even be used?
Thanks for any help!
BR, Carl
Here is my init-block in the war-app that connects to the cache in JBoss:
|
| ObjectName objectName;
| try {
| objectName = new ObjectName(CACHE_MBEAN_OBJECT_NAME);
| }
| catch (Throwable t) {
| throw new NetCacheException("Malformed TreeCache ObjectName");
| }
|
| TreeCacheMBean mbean;
| try {
| mbean = (TreeCacheMBean) MBeanProxyExt.create(TreeCacheMBean.class,
objectName);
| }
| catch (Throwable t) {
| log.error("Unable to locate TreeCache MBean under object name "
+ CACHE_MBEAN_OBJECT_NAME, t);
| throw new NetCacheException("Unable to locate TreeCache MBean under
object name " + CACHE_MBEAN_OBJECT_NAME);
| }
|
| cache = mbean;
| log.info("Successfully retrived TreeCache mbean from JBossAS");
| try {
| cache.registerClassLoader("/",
Thread.currentThread().getContextClassLoader());
| } catch (RegionNameConflictException e) {
| log.error("Could not register classloader!", e);
| throw new NetCacheException("Could not register classloader!",
e);
| }
| try {
| cache.activateRegion("/");
| } catch (RegionNameConflictException e) {
| log.error("Could not activateRegion / ", e);
| throw new NetCacheException("Could not activateRegion / ", e);
| } catch (CacheException e) {
| log.error("Could not activateRegion / ", e);
| throw new NetCacheException("Could not activateRegion / ", e);
| }
|
|
And here's my config for the cache:
| <?xml version="1.0" encoding="UTF-8"?>
|
| <!-- ===================================================================== -->
| <!-- -->
| <!-- Customized TreeCache Service Configuration for HM -->
| <!-- -->
| <!-- ===================================================================== -->
|
| <server>
|
| <!-- ====================================================================
-->
| <!-- Defines TreeCache configuration
-->
| <!-- ====================================================================
-->
|
| <mbean code="org.jboss.cache.TreeCache"
| name="com.hm.website.core.cache:service=HmTreeCache">
|
| <depends>jboss:service=Naming</depends>
| <depends>jboss:service=TransactionManager</depends>
|
| <!-- Configure the TransactionManager -->
| <attribute
name="TransactionManagerLookupClass">org.jboss.cache.JBossTransactionManagerLookup</attribute>
| <!-- <attribute
name="TransactionManagerLookupClass">org.jboss.cache.DummyTransactionManagerLookup</attribute>
-->
|
| <!--
| Isolation level : SERIALIZABLE
| REPEATABLE_READ (default)
| READ_COMMITTED
| READ_UNCOMMITTED
| NONE
| -->
| <attribute
name="IsolationLevel">REPEATABLE_READ</attribute>
|
| <!--
| Valid modes are LOCAL, REPL_ASYNC and REPL_SYNC
| -->
| <attribute name="CacheMode">REPL_ASYNC</attribute>
|
| <!--
| Just used for async repl: use a replication queue
| -->
| <attribute name="UseReplQueue">true</attribute>
|
| <!--
| Replication interval for replication queue (in ms)
| -->
| <attribute name="ReplQueueInterval">1000</attribute>
|
| <!--
| Max number of elements which trigger replication
| -->
| <attribute name="ReplQueueMaxElements">2</attribute>
|
|
| <!-- Name of cluster. Needs to be the same for all clusters, in order
| to find each other
| -->
| <attribute
name="ClusterName">hmtreecache-devg3</attribute>
|
| <!-- JGroups protocol stack properties. Can also be a URL,
| e.g. file:/home/bela/default.xml
| <attribute name="ClusterProperties"></attribute>
| -->
|
| <attribute name="ClusterConfig">
| <!--
| The default UDP stack:
| - If you have a multihomed machine, set the UDP protocol's bind_addr
attribute to the
| appropriate NIC IP address, e.g bind_addr="192.168.0.2".
| - On Windows machines, because of the media sense feature being broken
with multicast
| (even after disabling media sense) set the UDP protocol's loopback
attribute to true
| -->
| <config>
| <UDP mcast_addr="230.1.2.17"
| mcast_port="4557"
|
| ip_ttl="32"
| enable_bundling="true"
| max_bundle_size="64000" max_bundle_timeout="300"
| mcast_send_buf_size="10000000"
mcast_recv_buf_size="10000000"
| ucast_send_buf_size="10000000"
ucast_recv_buf_size="10000000"
| loopback="true"
| use_incoming_packet_handler="false"
| use_outgoing_packet_handler="true"
|
| />
| <PING timeout="2000" num_initial_members="3"
down_thread="false"/>
| <MERGE2 min_interval="5000" down_thread="false"
max_interval="10000"/>
| <FD_SOCK down_thread="false" />
| <VERIFY_SUSPECT timeout="1500" down_thread="false"/>
| <pbcast.NAKACK max_xmit_size="60000" down_thread="false"
| use_mcast_xmit="true" gc_lag="50"
| retransmit_timeout="300,600,1200,2400,4800"
discard_delivered_msgs="true" />
| <UNICAST timeout="300,600,1200,2400,3600"
down_thread="false"/>
| <pbcast.STABLE stability_delay="1000"
desired_avg_gossip="5000" down_thread="false"
max_bytes="250000"/>
| <pbcast.GMS print_local_addr="true" join_timeout="3000"
down_thread="false" join_retry_timeout="2000" shun="true"
/>
| <FC max_credits="1000000" down_thread="false"
min_threshold="0.10" />
| <FRAG frag_size="60000" down_thread="false"
up_thread="true" />
| <COMPRESS down_thread="false" min_size="500"
compression_level="3" up_thread="true" />
| <pbcast.STATE_TRANSFER down_thread="false"
up_thread="false" />
| </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">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">20000</attribute>
|
| <!--
| Number of milliseconds to wait until all responses for a
| synchronous call have been received.
| -->
| <attribute name="SyncReplTimeout">20000</attribute>
|
| <!-- Max number of milliseconds to wait for a lock acquisition -->
| <attribute name="LockAcquisitionTimeout">15000</attribute>
|
|
| <!--
| Indicate whether to use 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".
| -->
| <!-- Configure Marshalling -->
| <attribute
name="UseRegionBasedMarshalling">true</attribute>
| <attribute name="InactiveOnStartup">true</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>
| <attribute name="wakeUpIntervalSeconds">60</attribute>
| <!-- Cache wide default -->
| <region name="/_default_">
| <attribute name="maxNodes">0</attribute>
| <attribute name="timeToLiveSeconds">0</attribute>
| <attribute name="maxAgeSeconds">0</attribute>
| </region>
| <region name="/objects"
policyClass="org.jboss.cache.eviction.LRUPolicy">
| <attribute name="maxNodes">5000</attribute>
| <attribute name="maxAgeSeconds">21600</attribute>
| <attribute name="timeToLiveSeconds">21600</attribute>
| </region>
| <region name="/status"
policyClass="org.jboss.cache.eviction.LRUPolicy">
| <attribute name="maxNodes">0</attribute>
| <attribute name="timeToLiveSeconds">0</attribute>
| <attribute name="maxAgeSeconds">0</attribute>
| </region>
| </config>
| </attribute>
|
|
| </mbean>
| </server>
|
|
|
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