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
Errata: this bug occurs specifically for memcached cache, not for any two caches.
adding <module name="org.infinispan.cachestore.leveldb" optional="true"/> to modules/org/infinispan/server/endpoint/main/module.xml helps here
Upstream PR: https://github.com/infinispan/infinispan/pull/1911
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
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
This product has been discontinued or is no longer tracked in Red Hat Bugzilla.