[Design of JBoss jBPM] - Re: jPDL 4 early feedback
by heiko.braun＠jboss.com
Stock versus custom activities
IMO stock activities like "email" shouldn't be treated different then activities that users supply. I would prefer one way of defining activities in jpdl4 and not begin with a set of special cases. Simplicity is something that I always hear in this forum, but IMO defining extra tags for "some" activities and a different schema for others makes it more complex and not any more simple.
I think the question is where to draw the line?
The way I see it, there is control flow activities and use case activities. The later would be "email somebody" or "forward the message to an ESB" type of extensions. To me it looks like being implemented as an activity is more like an implementation detail to the control flow ones and can easily be hidden behind a custom xml dialect, but the use case activities should be treated equally, regardless if they are prebuild ones, or extensions that users supply.
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16 years, 6 months
[Design of JBoss Profiler] - profiler install
by gebuh
hi all, I'm trying to do a profiler install on 32bit linux to profile a remote 64bit linux 4.05 jboss
Excuse my ignorance, but I've got half a gazillion questions.
I tried to install the 2.0 profiler first, I found the documentation fragmented and confusing, some of it could be my lack of experience, I searched the forum and couldn't find similar problems. It was only after I did the install and got the online README that I saw 2.0 wasn't tested against a 4.0x jboss.
Does this work server to server? If I want to profile a remote jboss, do I need to install it on my server AND the remote server? What's the difference between what gets installed on which server?
I couldn't get past an invoker exception, so I went back and tried the 1.0CR, the ant build.xml needed a couple of directories created that weren't in the docs. The readme says to build the java and then do the native library installs, but the pdf doesn't mention the java-do I need it?
One of the java classes references a gnu.trove import that I don't have.
So I skipped the ant build.
I made the ld-library_path changes, deployed the war and sarAOP, editted both run.conf's started it up, the only thing I'm getting is I don't have profilerConsole.jar in my classpath, I added it to my path, still same thing. Where's this thing supposed to be?
How do I add classes to profile? I need to profile all the server side code for our app, do I need to add them a class at a time? Do all the options need to be in my local run.conf?
sorry for the length, I'd appreciate any help.
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16 years, 6 months
[Design of JBossCache] - Marshalling problem w/ 2.2.0.CR5
by bstansberry＠jboss.com
Well, maybe not CR5, since I haven't tested this. But, as briefly discussed on the dev list I'm seeing a failure in a AS testsuite test w/ a snapshot built earlier in the week against the head of 2.2.X branch. I assume it's still there in CR5
Problem is remote call comes in to delete a node that's previously been passivated to disk. As part of handling that call the node is read from disk; this fails due to not using the correct classloader. Region-based marshalling is used, buddy replication, FileCacheLoader.
Following is some analysis; not complete but as far as I can go for now. To reproduce, checkout the head of the AS, change the JBC version in component-matrix/pom.xml to CR5, build AS and testsuite, and from testsuite dir
./build.sh tests-clustering-field-br
OK, what I' seeing. First the failure:
| 2008-06-27 12:53:50,846 TRACE [org.jboss.cache.interceptors.ActivationInterceptor] (Incoming-1,192.168.1.145:43241) loadNode /_BUDDY_BACKUP_/127.0.0.1_43238/JSESSION/localhost/http-field-pass/giGN4tImzJAMCoFaHg-gZw__/__JBossInternal__/ATTRIBUTE/TEST_DESER/_ID_/5c4o141-i7090w-fhz2z6jb-1-fhz323cn-2k
| 2008-06-27 12:53:50,846 TRACE [org.jboss.cache.RegionManager] (Incoming-1,192.168.1.145:43241) Contents of RegionsRegistry: {/_BUDDY_BACKUP_/127.0.0.1_43238=RegionImpl{fqn=/_BUDDY_BACKUP_/127.0.0.1_43238; classloader=null; status=INACTIVE; eviction=true; timerThreadRegistered=true}, /=RegionImpl{fqn=/; classloader=null; status=INACTIVE; eviction=true; timerThreadRegistered=true}, /JSESSION/localhost/http-field-pass=RegionImpl{fqn=/JSESSION/localhost/http-field-pass; classloader=org.jboss.web.tomcat.service.WebCtxLoader$ENCLoader@41fc8c; status=ACTIVE; eviction=false; timerThreadRegistered=false}}
| 2008-06-27 12:53:50,847 TRACE [org.jboss.cache.RegionManager] (Incoming-1,192.168.1.145:43241) Trying next region /_BUDDY_BACKUP_/127.0.0.1_43238 and got RegionImpl{fqn=/_BUDDY_BACKUP_/127.0.0.1_43238; classloader=null; status=INACTIVE; eviction=true; timerThreadRegistered=true}
| 2008-06-27 12:53:50,847 TRACE [org.jboss.cache.RegionManager] (Incoming-1,192.168.1.145:43241) Trying next region / and got RegionImpl{fqn=/; classloader=null; status=INACTIVE; eviction=true; timerThreadRegistered=true}
| 2008-06-27 12:53:50,847 TRACE [org.jboss.cache.marshall.CacheMarshaller210] (Incoming-1,192.168.1.145:43241) Unmarshalled region as null. Not using a context class loader to unmarshall.
| 2008-06-27 12:53:50,847 TRACE [org.jboss.cache.marshall.CacheMarshaller210] (Incoming-1,192.168.1.145:43241) Unmarshalled regionFqn null from stream
| 2008-06-27 12:53:50,847 DEBUG [org.jboss.cache.marshall.CacheMarshaller210] (Incoming-1,192.168.1.145:43241) Region does not exist for Fqn null - not using a context classloader.
| 2008-06-27 12:53:50,851 ERROR [org.jboss.cache.interceptors.TxInterceptor] (Incoming-1,192.168.1.145:43241) prepare failed!
| java.lang.ClassNotFoundException: org.jboss.test.cluster.web.DeserializationSensor
| at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
| at java.security.AccessController.doPrivileged(Native Method)
| at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
| at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
| at java.lang.Class.forName0(Native Method)
| at java.lang.Class.forName(Class.java:242)
| at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:207)
| at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:1009)
| at org.jboss.classloader.spi.base.BaseClassLoader.loadClassFromDomain(BaseClassLoader.java:728)
| at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:372)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
| at java.lang.Class.forName0(Native Method)
| at java.lang.Class.forName(Class.java:242)
| at org.jboss.util.stream.MarshalledValueInputStream.resolveClass(MarshalledValueInputStream.java:62)
| at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1544)
| at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)
| at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699)
| at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
| at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
| at org.jboss.cache.marshall.CacheMarshaller200.unmarshallObject(CacheMarshaller200.java:540)
| at org.jboss.cache.marshall.CacheMarshaller200.populateFromStream(CacheMarshaller200.java:750)
| at org.jboss.cache.marshall.CacheMarshaller200.unmarshallHashMap(CacheMarshaller200.java:713)
| at org.jboss.cache.marshall.CacheMarshaller200.unmarshallObject(CacheMarshaller200.java:571)
| at org.jboss.cache.marshall.CacheMarshaller200.unmarshallObject(CacheMarshaller200.java:513)
| at org.jboss.cache.marshall.CacheMarshaller200.objectFromObjectStreamRegionBased(CacheMarshaller200.java:202)
| at org.jboss.cache.marshall.CacheMarshaller200.objectFromObjectStream(CacheMarshaller200.java:126)
| at org.jboss.cache.marshall.VersionAwareMarshaller.objectFromObjectStream(VersionAwareMarshaller.java:326)
| at org.jboss.cache.loader.FileCacheLoader.doUnmarshall(FileCacheLoader.java:481)
| at org.jboss.cache.loader.AbstractCacheLoader.regionAwareUnmarshall(AbstractCacheLoader.java:214)
| at org.jboss.cache.loader.FileCacheLoader.loadAttributes(FileCacheLoader.java:434)
| at org.jboss.cache.loader.FileCacheLoader.get(FileCacheLoader.java:201)
| at org.jboss.cache.interceptors.CacheLoaderInterceptor.loadData(CacheLoaderInterceptor.java:564)
| at org.jboss.cache.interceptors.CacheLoaderInterceptor.loadNode(CacheLoaderInterceptor.java:491)
| at org.jboss.cache.interceptors.CacheLoaderInterceptor.loadIfNeeded(CacheLoaderInterceptor.java:305)
| at org.jboss.cache.interceptors.CacheLoaderInterceptor.visitPutKeyValueCommand(CacheLoaderInterceptor.java:106)
| at org.jboss.cache.interceptors.ActivationInterceptor.visitPutKeyValueCommand(ActivationInterceptor.java:135)
| at org.jboss.cache.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:92)
| at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:142)
| at org.jboss.cache.interceptors.PessimisticLockInterceptor.handlePutCommand(PessimisticLockInterceptor.java:118)
| at org.jboss.cache.interceptors.PessimisticLockInterceptor.handlePutKeyValueCommand(PessimisticLockInterceptor.java:86)
| at org.jboss.cache.interceptors.base.PostProcessingCommandInterceptor.visitPutKeyValueCommand(PostProcessingCommandInterceptor.java:56)
| at org.jboss.cache.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:92)
| at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:142)
| at org.jboss.cache.interceptors.ReplicationInterceptor.handleCrudMethod(ReplicationInterceptor.java:129)
| at org.jboss.cache.interceptors.ReplicationInterceptor.visitPutKeyValueCommand(ReplicationInterceptor.java:86)
| at org.jboss.cache.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:92)
| at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:142)
| at org.jboss.cache.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:157)
| at org.jboss.cache.commands.AbstractVisitor.visitPutKeyValueCommand(AbstractVisitor.java:35)
| at org.jboss.cache.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:92)
| at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:142)
| at org.jboss.cache.interceptors.TxInterceptor.replayModifications(TxInterceptor.java:502)
| at org.jboss.cache.interceptors.TxInterceptor.handleRemotePrepare(TxInterceptor.java:382)
| at org.jboss.cache.interceptors.TxInterceptor.visitPrepareCommand(TxInterceptor.java:105)
| at org.jboss.cache.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:46)
| at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:142)
| at org.jboss.cache.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:157)
| at org.jboss.cache.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:110)
| at org.jboss.cache.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:46)
| at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:142)
| at org.jboss.cache.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:158)
| at org.jboss.cache.interceptors.InvocationContextInterceptor.visitPrepareCommand(InvocationContextInterceptor.java:84)
| at org.jboss.cache.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:46)
| at org.jboss.cache.interceptors.InterceptorChain.invokeRemote(InterceptorChain.java:239)
| at org.jboss.cache.commands.remote.ReplicateCommand.processSingleCommand(ReplicateCommand.java:116)
| at org.jboss.cache.commands.remote.ReplicateCommand.perform(ReplicateCommand.java:92)
| at org.jboss.cache.marshall.CommandAwareRpcDispatcher.executeCommand(CommandAwareRpcDispatcher.java:173)
| at org.jboss.cache.marshall.InactiveRegionAwareRpcDispatcher.handle(InactiveRegionAwareRpcDispatcher.java:73)
| at org.jgroups.blocks.RequestCorrelator.handleRequest(RequestCorrelator.java:624)
| at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:533)
| at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:365)
| at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:764)
| at org.jgroups.JChannel.up(JChannel.java:1265)
| at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:441)
| at org.jgroups.protocols.pbcast.FLUSH.up(FLUSH.java:373)
| at org.jgroups.protocols.pbcast.STATE_TRANSFER.up(STATE_TRANSFER.java:144)
| at org.jgroups.protocols.FRAG2.up(FRAG2.java:205)
| at org.jgroups.protocols.FC.up(FC.java:411)
| at org.jgroups.protocols.pbcast.GMS.up(GMS.java:772)
| at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:233)
| at org.jgroups.protocols.UNICAST.handleDataReceived(UNICAST.java:627)
| at org.jgroups.protocols.UNICAST.up(UNICAST.java:286)
| at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:729)
| at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:167)
| at org.jgroups.protocols.FD.up(FD.java:284)
| at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:309)
| at org.jgroups.protocols.MERGE2.up(MERGE2.java:144)
| at org.jgroups.protocols.Discovery.up(Discovery.java:244)
| at org.jgroups.protocols.TP$ProtocolAdapter.up(TP.java:2191)
| at org.jgroups.protocols.TP.passMessageUp(TP.java:1235)
| at org.jgroups.protocols.TP.access$100(TP.java:49)
| at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1802)
| at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1776)
| at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
| at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
| at java.lang.Thread.run(Thread.java:595)
|
The earlier logging from RegionManager is due to calls from AbstractCacheLoader.regionAwareUnmarshall(), which is trying to find an appropriate classloader to set and fails. I think this comes down to a problem in AbstractCacheLoader.regionAwareMarshall() and regionAwareUnmarshall():
Region r = regionManager == null ? null : regionManager.getRegion(fqn, Region.Type.MARSHALLING, false);
That call won't convert from a BR FQN to a main tree FQN, so it doesn't find the region. Better would be to call a method that does that, a la AbstractMarshaller.getRegion(Fqn):
| protected Region getRegion(Fqn fqn)
| {
| if (fqn == null) return null;
| if (buddyFqnTransformer.isBackupFqn(fqn))
| {
| // Strip out the buddy group portion
| fqn = buddyFqnTransformer.getActualFqn(fqn);
| }
| return regionManager.getRegion(fqn, Region.Type.MARSHALLING, false);
| }
|
That should wrap it up, yes? Problem is I look at the code in 2.1.1.GA and it looks the same, so I don't understand why the test is failing now and not w/ 2.1.1.GA. So I'm missing something important.
Could it be that 2.1.1.GA wouldn't try to load the node from disk when doing the remove, i.e. the problem's been there all along but a behavior change has exposed it?
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16 years, 6 months