[JIRA] [jenkins-tracker] (JENKINS-27645) High memory usage by Jenkins ver. 1.580.1 & slave error

[narayanpradhan7...@gmail.com (JIRA)]

NARAYAN PRADHAN created JENKINS-27645 High memory usage by Jenkins ver. 1.580.1 & slave error Issue Type: Bug Assignee: Unassigned Components: jenkins-tracker Created: 27/Mar/15 9:48 AM Description: Hello, We are facing two issue with our Jenkins setups 1> Jenkins memory usage is very hight. We are running quite few jobs around 15-20 and observing heap memory usage increase gradually and reach upto 4 to 4.5 GB and. is this generic behavior or we have to upgrade to new version of Jenkins LTS. 2> we are facing below pasted error with downstream jobs --------------------------------------------------------------- FATAL: Remote call on Rhel6.3-2014-supbl603 failed java.io.IOException: Remote call on Rhel6.3-2014-supbl603 failed at hudson.remoting.Channel.call(Channel.java:760) at hudson.Launcher$RemoteLauncher.kill(Launcher.java:941) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:556) at hudson.model.Run.execute(Run.java:1745) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) at hudson.model.ResourceController.execute(ResourceController.java:89) at hudson.model.Executor.run(Executor.java:240) Caused by: java.lang.ClassFormatError: Failed to load javax.servlet.ServletException at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:325) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:237) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) at hudson.util.ProcessTree.getKillers(ProcessTree.java:151) at hudson.util.ProcessTree$OSProcess.killByKiller(ProcessTree.java:212) at hudson.util.ProcessTree$UnixProcess.kill(ProcessTree.java:557) at hudson.util.ProcessTree$UnixProcess.killRecursively(ProcessTree.java:564) at hudson.util.ProcessTree$Unix.killAll(ProcessTree.java:488) at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:953) at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:944) at hudson.remoting.UserRequest.perform(UserRequest.java:121) at hudson.remoting.UserRequest.perform(UserRequest.java:49) at hudson.remoting.Request$2.run(Request.java:324) at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:679) at ......remote call to Rhel6.3-2014-supbl603(Native Method) at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1356) at hudson.remoting.UserResponse.retrieve(UserRequest.java:221) at hudson.remoting.Channel.call(Channel.java:752) ... 6 more Caused by: java.lang.UnsupportedClassVersionError: javax/servlet/ServletException : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:634) at java.lang.ClassLoader.defineClass(ClassLoader.java:480) at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:323) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:237) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) at hudson.util.ProcessTree.getKillers(ProcessTree.java:151) at hudson.util.ProcessTree$OSProcess.killByKiller(ProcessTree.java:212) at hudson.util.ProcessTree$UnixProcess.kill(ProcessTree.java:557) at hudson.util.ProcessTree$UnixProcess.killRecursively(ProcessTree.java:564) at hudson.util.ProcessTree$Unix.killAll(ProcessTree.java:488) at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:953) at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:944) at hudson.remoting.UserRequest.perform(UserRequest.java:121) at hudson.remoting.UserRequest.perform(UserRequest.java:49) at hudson.remoting.Request$2.run(Request.java:324) at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:679) ------------------------------------- Please do let-us know if more symptom is required Environment: OS:RHEL5.4 ; x86_64 GNU/Linux java version "1.7.0_80-ea" Server version: Apache Tomcat/8.0.15 Server built: Nov 2 2014 19:25:20 UTC Server number: 8.0.15.0 OS Name: Linux OS Version: 2.6.18-164.el5 Architecture: amd64 JVM Version: 1.7.0_80-ea-b03 JVM Vendor: Oracle Corporation ================================ Browser : Chrome ===================== Jenkins ver. 1.580.1 ====================== Jenkins Plugins ===================== Project: Jenkins Priority: Major Reporter: NARAYAN PRADHAN

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