[jboss-jira] [JBoss JIRA] (WFCORE-2077) OutOfMemoryError: Metaspace after several client calls

OutOfMemoryError: Metaspace after several client calls ------------------------------------------------------ Key: WFCORE-2077 URL: https://issues.jboss.org/browse/WFCORE-2077 Project: WildFly Core Issue Type: Bug Components: Domain Management Affects Versions: 3.0.0.Alpha13 Reporter: Petr Kremensky Assignee: Tomaz Cerar Priority: Blocker Fix For: 3.0.0.Beta5 I saw some java.lang.OutOfMemoryError: Metaspace in our AS-Testsuite runs. Here is a really simple (and clumsy) reproducer for the leak. *repreduce* {noformat} # lower the metaspace size in jboss-eap-7.1/bin/standalone.conf to # -XX:MaxMetaspaceSize=64m # start standalone ./jboss-eap-7.1/bin/standalone.sh # run the following loop (any other mgmt operation should serve the same) for i in `seq 1 1000` ; do ./jboss-eap-7.1/bin/jboss-cli.sh -c :read-resource ; done # wait for OOM {noformat} {noformat} 14:24:29,629 WARN [org.jboss.modules] (MSC service thread 1-3) Failed to define class io.undertow.security.impl.SimpleNonceManager in Module "io.undertow.core:main" from local module loader @629f0666 (finder: local module finder @1bc6a36e (roots: /home/pkremens/workspace/jboss-eap-7.1/modules,/home/pkremens/workspace/jboss-eap-7.1/modules/system/layers/base)): java.lang.OutOfMemoryError: Metaspace at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:359) at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:438) at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:275) at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:79) at org.jboss.modules.Module.loadModuleClass(Module.java:612) at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:377) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:365) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:94) at org.jboss.as.domain.http.server.security.LogoutHandler.<init>(LogoutHandler.java:76) at org.jboss.as.domain.http.server.ManagementHttpServer.addLogoutHandler(ManagementHttpServer.java:316) at org.jboss.as.domain.http.server.ManagementHttpServer.setupOpenListener(ManagementHttpServer.java:395) at org.jboss.as.domain.http.server.ManagementHttpServer.create(ManagementHttpServer.java:271) at org.jboss.as.domain.http.server.ManagementHttpServer.access$2400(ManagementHttpServer.java:107) at org.jboss.as.domain.http.server.ManagementHttpServer$Builder.build(ManagementHttpServer.java:589) at org.jboss.as.server.mgmt.UndertowHttpManagementService.start(UndertowHttpManagementService.java:292) at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1963) at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1896) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) {noformat}