Bug 975361

Summary:	Configuring LevelDB as cachestore for memcached cache causes ClassNotFoundException
Product:	[JBoss] JBoss Data Grid 6	Reporter:	Radim Vansa <rvansa>
Component:	Server	Assignee:	Tristan Tarrant <ttarrant>
Status:	VERIFIED ---	QA Contact:	Martin Gencur <mgencur>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	jawilson, jdg-bugs, nobody
Target Milestone:	DR4
Target Release:	6.2.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	975081

Description Radim Vansa 2013-06-18 08:54:05 UTC

Description of problem:
If multiple caches should use LevelDB as cachestore, the server start fails with exception

10:53:03,874 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-8) MSC000001: Failed to start service jboss.datagrid.memcached.memcached-connector: org.jboss.msc.service.StartException in service jboss.datagrid.memcached.memcached-connector: JDGS010004: Failed to start MemcachedServer
	at org.infinispan.server.endpoint.subsystem.ProtocolServerService.start(ProtocolServerService.java:99)
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA-redhat-2.jar:1.0.2.GA-redhat-2]
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA-redhat-2.jar:1.0.2.GA-redhat-2]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_09-icedtea]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_09-icedtea]
	at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_09-icedtea]
Caused by: org.infinispan.CacheConfigurationException: Unable to instantiate class org.infinispan.loaders.leveldb.LevelDBCacheStore
	at org.infinispan.util.Util.loadClass(Util.java:101)
	at org.infinispan.util.Util.getInstance(Util.java:222)
	at org.infinispan.configuration.cache.LegacyConfigurationAdaptor.adapt(LegacyConfigurationAdaptor.java:513)
	at org.infinispan.configuration.cache.LegacyConfigurationAdaptor.adapt(LegacyConfigurationAdaptor.java:435)
	at org.infinispan.manager.DefaultCacheManager.defineConfiguration(DefaultCacheManager.java:462)
	at org.infinispan.manager.DefaultCacheManager.defineConfiguration(DefaultCacheManager.java:431)
	at org.jboss.as.clustering.infinispan.DefaultEmbeddedCacheManager.defineConfiguration(DefaultEmbeddedCacheManager.java:65)
	at org.infinispan.server.memcached.MemcachedServer.start(MemcachedServer.scala:48)
	at org.infinispan.server.endpoint.subsystem.ProtocolServerService.startProtocolServer(ProtocolServerService.java:132)
	at org.infinispan.server.endpoint.subsystem.ProtocolServerService.start(ProtocolServerService.java:90)
	... 5 more
Caused by: java.lang.ClassNotFoundException: org.infinispan.loaders.leveldb.LevelDBCacheStore
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366) [rt.jar:1.7.0_09-icedtea]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355) [rt.jar:1.7.0_09-icedtea]
	at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.7.0_09-icedtea]
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354) [rt.jar:1.7.0_09-icedtea]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423) [rt.jar:1.7.0_09-icedtea]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) [rt.jar:1.7.0_09-icedtea]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356) [rt.jar:1.7.0_09-icedtea]
	at java.lang.Class.forName0(Native Method) [rt.jar:1.7.0_09-icedtea]
	at java.lang.Class.forName(Class.java:266) [rt.jar:1.7.0_09-icedtea]
	at org.infinispan.util.Util.loadClassStrict(Util.java:138)
	at org.infinispan.util.Util.loadClass(Util.java:99)
	... 14 more

Version-Release number of selected component (if applicable):
JDG 6.1.0-redhat-2

Comment 1 Radim Vansa 2013-06-19 06:39:35 UTC

Errata: this bug occurs specifically for memcached cache, not for any two caches.

Comment 2 Michal Linhard 2013-06-19 11:21:46 UTC

adding 
<module name="org.infinispan.cachestore.leveldb" optional="true"/>
to 
modules/org/infinispan/server/endpoint/main/module.xml
helps here

Comment 3 Jimmy Wilson 2013-06-20 15:26:11 UTC

Upstream PR: https://github.com/infinispan/infinispan/pull/1911

Comment 4 Tristan Tarrant 2013-06-20 15:31:03 UTC

The fix is included in https://brewweb.devel.redhat.com/taskinfo?taskID=5930617

and in particular: http://download.devel.redhat.com/brewroot/work/tasks/617/5930617/org/infinispan/infinispan-server-memcached/5.2.4.Final-redhat-3/infinispan-server-memcached-5.2.4.Final-redhat-3.jar

Comment 6 Michal Linhard 2013-09-18 11:27:11 UTC

Verified for 6.2.0.DR4

Core tests were run with LevelDB configs (Local, DIST, REPL) modes, JNI/JAVA implementations, these tests also test memcached interface and no ClassNotFoundException was observed