March 2007 - jboss-jira - Jboss List Archives

[JBoss JIRA] Created: (JBCACHE-853) CacheJmxWrapper should implement NotificationBroadcaster

by Brian Stansberry (JIRA)

CacheJmxWrapper should implement NotificationBroadcaster -------------------------------------------------------- Key: JBCACHE-853 URL: http://jira.jboss.com/jira/browse/JBCACHE-853 Project: JBoss Cache Issue Type: Sub-task Security Level: Public (Everyone can see) Reporter: Brian Stansberry Assigned To: Brian Stansberry Fix For: 2.0.0.GA We need to clarify responsibility for this between the top level JMX wrapper beans and CacheMgmtInterceptor. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-710) CacheLoader passivation/activation produces recursive exception when loader.remove fails

by Ben Wang (JIRA)

CacheLoader passivation/activation produces recursive exception when loader.remove fails ---------------------------------------------------------------------------------------- Key: JBCACHE-710 URL: http://jira.jboss.com/jira/browse/JBCACHE-710 Project: JBoss Cache Issue Type: Bug Security Level: Public (Everyone can see) Components: Cache loaders Affects Versions: 1.4.0 Reporter: Ben Wang Assigned To: Manik Surtani Priority: Critical Fix For: 2.0.0 I have encountered this problem during ejb3 sfsb port of JBC1.4. This is what happened: In ActivationInterceptor.java, we have: if (n != null && !n.containsKey(TreeCache.UNINITIALIZED)) { if (n.hasChildren()) { if (allInitialized(n)) { log.debug("children all initialized"); remove(fqn); } } else if (loaderNoChildren(fqn)) { log.debug("no children " + n); remove(fqn); } } } } return retval; } private void remove(Fqn fqn) throws Exception { loader.remove(fqn); cache.notifyNodeActivate(fqn, false); if (cache.getUseInterceptorMbeans()&& statsEnabled) m_activations++; } problem arises when loader.remove(fqn) fails (can be a file lock there, e.g.), then if I have a Cache listener to receive nodeActivate event, and in there, I will have to retrieve the node value, e.g., cache.get(fqn, key) to process some logic, then get(fqn, key) will come back to ActivationInterceptor and attempt another .remove() and therefore the recursion. A proposed fix is we should throw exception when removing the node fails in CacheLoader (I am using FileCacheLoader), e.g., DataNotRemovedException. That way, ActivationInterceptor can catch it here and skip event notification (since it won't be valid anyway). -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-723) Proper collection rollback

by Ben Wang (JIRA)

Proper collection rollback -------------------------- Key: JBCACHE-723 URL: http://jira.jboss.com/jira/browse/JBCACHE-723 Project: JBoss Cache Issue Type: Sub-task Security Level: Public (Everyone can see) Components: PojoCache Reporter: Ben Wang Assigned To: Ben Wang Fix For: 2.0.0 It is not properly yet via the undointerceptor -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-839) PojoCache to add an option to replicate final field

by Ben Wang (JIRA)

PojoCache to add an option to replicate final field --------------------------------------------------- Key: JBCACHE-839 URL: http://jira.jboss.com/jira/browse/JBCACHE-839 Project: JBoss Cache Issue Type: Feature Request Security Level: Public (Everyone can see) Components: PojoCache Reporter: Ben Wang Assigned To: Ben Wang Fix For: 2.0.0.GA We should add a flag to enable replication of final field in PojoCache. This can be done via pojocache-aop.xml, where:  <interceptor name="Start" class="org.jboss.cache.pojo.interceptors.PojoBeginInterceptor" scope="PER_INSTANCE">  <attribute name="ReplicateFinalField">true</attribute> </interceptor> -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-696) Look into JDBMCacheLoader details and potentially promote as a 'recommended' cache loader?

by Manik Surtani (JIRA)

Look into JDBMCacheLoader details and potentially promote as a 'recommended' cache loader? ------------------------------------------------------------------------------------------ Key: JBCACHE-696 URL: http://jira.jboss.com/jira/browse/JBCACHE-696 Project: JBoss Cache Issue Type: Task Security Level: Public (Everyone can see) Components: Cache loaders Affects Versions: 1.4.0, 1.3.0 Reporter: Manik Surtani Assigned To: Manik Surtani Fix For: 2.0.0 -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-708) EOF exception in TcpCacheLoader

by Manik Surtani (JIRA)

EOF exception in TcpCacheLoader ------------------------------- Key: JBCACHE-708 URL: http://jira.jboss.com/jira/browse/JBCACHE-708 Project: JBoss Cache Issue Type: Bug Security Level: Public (Everyone can see) Components: Cache loaders Affects Versions: 1.4.0 Reporter: Manik Surtani Assigned To: Manik Surtani Fix For: 2.0.0 Happens when a node in the cluster dies. See last few postings in forum thread for details. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-833) Redundant lock in cache loader

by Ben Wang (JIRA)

Redundant lock in cache loader ------------------------------ Key: JBCACHE-833 URL: http://jira.jboss.com/jira/browse/JBCACHE-833 Project: JBoss Cache Issue Type: Bug Security Level: Public (Everyone can see) Components: Cache loaders Affects Versions: 1.4.0.SP1, 1.4.0.GA Reporter: Ben Wang Assigned To: Manik Surtani Priority: Minor Fix For: 2.0.0.GA Currently in CacheLoader, it calls "lock" from loadIfNeeded method. The "lock" method in turns invokes TreeCache.java public void _lock(Fqn fqn, DataNode.LockType lock_type, boolean recursive) throws TimeoutException, LockingException { log.warn("method _lock() should not be invoked on TreeCache"); } I think the LockInterceptor should take care of the locking properly. So this call should be deprecated. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-995) Test failure - org.jboss.cache.multiplexer.BuddyGroupAssignmentTest

by Rajesh Rajasekaran (JIRA)

Test failure - org.jboss.cache.multiplexer.BuddyGroupAssignmentTest ------------------------------------------------------------------- Key: JBCACHE-995 URL: http://jira.jboss.com/jira/browse/JBCACHE-995 Project: JBoss Cache Issue Type: Bug Security Level: Public (Everyone can see) Reporter: Rajesh Rajasekaran Assigned To: Manik Surtani Fix For: 2.0.0.BETA1 org.jboss.cache.multiplexer.BuddyGroupAssignmentTest fails on the release distribution. To reproduce: run ./build.sh dist. Unzip JBossCache-all-2.0.0.BETA1.zip Run ant one.test -Dtest=org.jboss.cache.multiplexer.BuddyGroupAssignmentTest <testcase classname="org.jboss.cache.multiplexer.BuddyGroupAssignmentTest" name="testRemovalFromCluster2Buddies" time="24.523"> <failure message="10.16.7.254:60612 should be a buddy to 10.16.7.254:60606" type="junit.framework.AssertionFailedError">junit.framework.AssertionFailedError: 10.16.7.254:60612 should be a buddy to 10.16.7.254:60606 at org.jboss.cache.buddyreplication.BuddyReplicationTestsBase.assertIsBuddy(BuddyReplicationTestsBase.java:285) at org.jboss.cache.buddyreplication.BuddyGroupAssignmentTest.testRemovalFromCluster2Buddies(BuddyGroupAssignmentTest.java:131) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) </failure> -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-882) Migrating JBC 1.x java serialized data to 2.x VAM format

by Galder Zamarreno (JIRA)

Migrating JBC 1.x java serialized data to 2.x VAM format -------------------------------------------------------- Key: JBCACHE-882 URL: http://jira.jboss.com/jira/browse/JBCACHE-882 Project: JBoss Cache Issue Type: Sub-task Security Level: Public (Everyone can see) Affects Versions: 2.0.0.ALPHA1 Reporter: Galder Zamarreno Assigned To: Galder Zamarreno Fix For: 2.0.0.GA Write an FAQ entry in which to explain how to transform data stored in 1.x format into the VAM format. Explanation will focus on: "Write a 'bridge' app, which starts 2 instances of JBC (old and new - can these even run in the same VM together?) and yanks data out of one and into the other?" -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

18 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-740) Optimistic Locking Scheme: Occasional IllegalStateExceptions on commit

by Carsten Krebs (JIRA)

Optimistic Locking Scheme: Occasional IllegalStateExceptions on commit ---------------------------------------------------------------------- Key: JBCACHE-740 URL: http://jira.jboss.com/jira/browse/JBCACHE-740 Project: JBoss Cache Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 1.4.0 Environment: Linux 2.6.15-26-686 #1 SMP PREEMPT Thu Aug 3 03:13:28 UTC 2006 i686 GNU/Linux java version "1.5.0_06" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05) Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing) JOTM 2.0.10 JUnit 3.8.1 Reporter: Carsten Krebs Assigned To: Manik Surtani Fix For: 2.0.0 The unit test below reproduces "occasional" IllegalStateExceptions (s.b.) on commiting a transaction. This test tries to modify the same node at the same time by different threads in different transactions using the optimistic locking scheme. java.lang.IllegalStateException: there is already a writer holding the lock: GlobalTransaction:<null>:43 at org.jboss.cache.lock.LockMap.setWriterIfNotNull(LockMap.java:96) at org.jboss.cache.lock.IdentityLock.acquireWriteLock(IdentityLock.java:204) at org.jboss.cache.Node.acquireWriteLock(Node.java:431) at org.jboss.cache.Node.acquire(Node.java:386) at org.jboss.cache.interceptors.OptimisticLockingInterceptor.lockNodes(OptimisticLockingInterceptor.java:149) at org.jboss.cache.interceptors.OptimisticLockingInterceptor.invoke(OptimisticLockingInterceptor.java:76) at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:68) at org.jboss.cache.interceptors.TxInterceptor.runPreparePhase(TxInterceptor.java:804) at org.jboss.cache.interceptors.TxInterceptor$LocalSynchronizationHandler.beforeCompletion(TxInterceptor.java:1069) at org.jboss.cache.interceptors.OrderedSynchronizationHandler.beforeCompletion(OrderedSynchronizationHandler.java:75) at org.objectweb.jotm.SubCoordinator.doBeforeCompletion(SubCoordinator.java:1487) at org.objectweb.jotm.SubCoordinator.commit_one_phase(SubCoordinator.java:416) at org.objectweb.jotm.TransactionImpl.commit(TransactionImpl.java:239) at OptimisticLockingTest$Worker.run(OptimisticLockingTest.java:135) The Cache Config: ------------------------- <?xml version="1.0" encoding="UTF-8"?> <server> <mbean code="org.jboss.cache.TreeCache" name="jboss.cache:service=TreeCache"> <attribute name="NodeLockingScheme">OPTIMISTIC</attribute> <attribute name="CacheMode">LOCAL</attribute> </mbean> </server> The Unit Test: ------------------- import javax.transaction.Transaction; import javax.transaction.TransactionManager; import junit.framework.TestCase; import org.jboss.cache.CacheException; import org.jboss.cache.PropertyConfigurator; import org.jboss.cache.TransactionManagerLookup; import org.jboss.cache.TreeCache; import org.objectweb.jotm.Current; import EDU.oswego.cs.dl.util.concurrent.CyclicBarrier; /** * OptimisticLockingTest */ public class OptimisticLockingTest extends TestCase { private static final String NODE_PATH = "/path/node"; private static final String KEY = "key"; private static final Current jotm = new Current(); private TreeCache cache; protected void setUp() throws Exception { super.setUp(); cache = new TreeCache(); final PropertyConfigurator config = new PropertyConfigurator(); cache.setTransactionManagerLookup(new TransactionManagerLookup() { public TransactionManager getTransactionManager() throws Exception { return Current.getTransactionManager(); } }); config.configure(cache, this.getClass().getResourceAsStream( "/cache-config.xml")); cache.startService(); } public void testSimultanWrite() throws Exception { for (int i = 2; i < 20; i++) { System.out.println(">> testing simultaneous writes with " + i + " threads..."); testSimultanWrite(i); } } public void testSimultanWrite(final int _numThreads) throws Exception { final CyclicBarrier barrier = new CyclicBarrier(_numThreads); Worker[] workers = new Worker[_numThreads]; for (int i = 0; i < workers.length; i++) { workers[i] = new Worker(); workers[i].barrier = barrier; workers[i].value = "worker" + i; if (i == 0) { workers[i].isMaster = true; } workers[i].start(); } for (int i = 0; i < workers.length; i++) { workers[i].join(); } assertNull(workers[0].exception); for (int i = 0; i < workers.length; i++) { assertNull("rollback failed", workers[i].rollbackException); } for (int i = 1; i < workers.length; i++) { assertNotNull("missing exception", workers[i].exception); assertTrue("exception is not of type CacheException", workers[i].exception.getCause() instanceof CacheException); } assertEquals("worker0", cache.get(NODE_PATH, KEY)); cache.getTransactionManager().begin(); cache.remove(NODE_PATH); cache.getTransactionManager().commit(); } private class Worker extends Thread { private CyclicBarrier barrier; private Exception exception; private Exception rollbackException; private String value; private boolean isMaster; /** * @see java.lang.Thread#run() */ public void run() { final TransactionManager txManager = cache.getTransactionManager(); Transaction tx = null; try { // wait for all threads started barrier.barrier(); if (isMaster) { txManager.begin(); cache.put(NODE_PATH, KEY, value); // lets the other threads start writing barrier.barrier(); // wait for other threads to their modification barrier.barrier(); // commit first tx = txManager.getTransaction(); tx.commit(); // lets the other threads commit barrier.barrier(); } else { // wait for master to start transaction barrier.barrier(); txManager.begin(); cache.put(NODE_PATH, KEY, value); // signal modification barrier.barrier(); // wait for master to commit transaction barrier.barrier(); tx = txManager.getTransaction(); tx.commit(); } } catch (Exception e) { exception = e; try { tx.rollback(); } catch (Exception e1) { rollbackException = e1; } } } } } -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

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jboss-jira March 2007