Cannot Run Program Error=24 Too Many Open Files
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Java.io.ioexception: Error=24, Too Many Open Files
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Jetty Java Io Ioexception Too Many Open Files
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a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up IOException: Too many open files up vote 19 down vote favorite 11 I'm trying to debug a file descriptor leak in a Java webapp running in Jetty 7.0.1 on Linux. The app org.eclipse.jetty.server.serverconnector java.io.ioexception: too many open files had been happily running for a month or so when requests started to fail due to too many open files, and Jetty had to be restarted. java.io.IOException: Cannot run program [external program]: java.io.IOException: error=24, Too many open files at java.lang.ProcessBuilder.start(ProcessBuilder.java:459) at java.lang.Runtime.exec(Runtime.java:593) at org.apache.commons.exec.launcher.Java13CommandLauncher.exec(Java13CommandLauncher.java:58) at org.apache.commons.exec.DefaultExecutor.launch(DefaultExecutor.java:246) At first I thought the issue was with the code that launches the external program, but it's using commons-exec and I don't see anything wrong with it: CommandLine command = new CommandLine("/path/to/command") .addArgument("..."); ByteArrayOutputStream errorBuffer = new ByteArrayOutputStream(); Executor executor = new DefaultExecutor(); executor.setWatchdog(new ExecuteWatchdog(PROCESS_TIMEOUT)); executor.setStreamHandler(new PumpStreamHandler(null, errorBuffer)); try { executor.execute(command); } catch (ExecuteException executeException) { if (executeException.getExitValue() == EXIT_CODE_TIMEOUT) { throw new MyCommandException("timeout"); } else { throw new MyCommandException(errorBuffer.toString("UTF-8")); } } Listing open files on the server I can see a high number of FIFOs: # lsof -u jetty ... java 524 jetty 218w FIFO 0,6 0t0 19404236 pipe java 524 jetty 219r FIFO 0,6 0t0 19404008 pipe java
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us kafka java.io.ioexception: too many open files Learn more about Stack Overflow the company Business Learn more about hiring developers too many open files websphere or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack java.io.ioexception: too many open files netty Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up java ioexception error=24 too many files open http://stackoverflow.com/questions/2044672/ioexception-too-many-open-files up vote 2 down vote favorite I'm writing a genetic algorithm that needs to read/write lots of files. The fitness test for the GA is invoking a program called gradif, which takes a file as input and produces a file as output. Everything is working except when I make the population size and/or the total number of generations of the genetic algorithm too large. Then, after so http://stackoverflow.com/questions/11337426/java-ioexception-error-24-too-many-files-open many generations, I start getting this: java.io.FileNotFoundException: testfiles/GradifOut29 (Too many open files). (I get it repeatedly for many different files, the index 29 was just the one that came up first last time I ran it). It's strange because I'm not getting the error after the first or second generation, but after a significant amount of generations, which would suggest that each generation opens up more files that it doesn't close. But as far as I can tell I'm closing all of the files. The way the code is set up is the main() function is in the Population class, and the Population class contains an array of Individuals. Here's my code: Initial creation of input files (they're random access so that I could reuse the same file across multiple generations) files = new RandomAccessFile[popSize]; for(int i=0; i Too many open files Looks like the iTest news checker leaks, https://forums.spirent.com/questions/3789/cannot-run-program-quotbinshquot-javaioioexception.html and eventually runs out of file handles, at least on linux, centrally installed. My workspace was fine yesterday. Haven’t done anything since then, http://jenkins-ci.361315.n4.nabble.com/Too-many-open-files-td379886.html but today, it is totally trashed. Can’t save files. Can’t get a license. It can’t even write to the log file. This is too many a “lose your data” problem, so it is serious! iTest 4.0, Version: 4.0.2, Build: 52893, linux I should note that this is the only workspace I’ve seen this in, and it is the only one that is centrally installed. Don't know if that's related too many open Here’s the first log entry: !ENTRY org.eclipse.core.net 4 0 2010-11-02 12:15:47.973 !MESSAGE Problem during accessing system variable: http_proxy !STACK 0 java.io.IOException: Cannot run program "/bin/sh": java.io.IOException: error=24, Too many open files at java.lang.ProcessBuilder.start(Unknown Source) at java.lang.Runtime.exec(Unknown Source) at java.lang.Runtime.exec(Unknown Source) at org.eclipse.core.internal.net.proxy.unix.UnixProxyProvider.getEnv(UnixProxyProvider.java:194) at org.eclipse.core.internal.net.proxy.unix.UnixProxyProvider.getSystemProxyInfo(UnixProxyProvider.java:135) at org.eclipse.core.internal.net.proxy.unix.UnixProxyProvider.getProxyData(UnixProxyProvider.java:58) at org.eclipse.core.internal.net.AbstractProxyProvider.select(AbstractProxyProvider.java:43) at org.eclipse.core.internal.net.ProxyManager.getProxyDataForHost(ProxyManager.java:365) at org.eclipse.core.internal.net.ProxyManager.select(ProxyManager.java:560) at com.fnfr.itest.news.NewsChecker.getHttpProxyData(NewsChecker.java:57) at com.fnfr.itest.news.NewsChecker.createReader(NewsChecker.java:24) at com.fnfr.itest.news.NewsChecker.retrieveFeed(NewsChecker.java:74) at com.fnfr.itest.news.NewsJob.run(NewsJob.java:78) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: java.io.IOException: error=24, Too many open files at java.lang.UNIXProcess. Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Too many open files... Hi, I have the problem that Hudson runs into "Too many open files" after some hours of working.... The log becomes really big (several hundred mega bytes) and is filled with messages like that: SEVERE: Failed to record SCM polling hudson.plugins.git.GitException: Error performing git show-ref -s --tags hudson-com.cedarsoft.open-22 at hudson.plugins.git.GitAPI.launchCommand(GitAPI.java:282) at hudson.plugins.git.GitAPI.showTag(GitAPI.java:172) at hudson.plugins.git.GitAPI.getHudsonTags(GitAPI.java:297) at hudson.plugins.git.GitSCM.branchesThatNeedBuilding(GitSCM.java:431) at hudson.plugins.git.GitSCM.access$100(GitSCM.java:44) at hudson.plugins.git.GitSCM$1.invoke(GitSCM.java:150) at hudson.plugins.git.GitSCM$1.invoke(GitSCM.java:129) at hudson.FilePath.act(FilePath.java:552) at hudson.plugins.git.GitSCM.pollChanges(GitSCM.java:129) at hudson.model.AbstractProject.pollSCMChanges(AbstractProject.java:858) at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:382) at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:417) at java.util.concurrent.Executors $RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor $Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor $Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Caused by: java.io.IOException: Cannot run program "git" (in directory "/home/hudson/jobs/com.cedarsoft.open/workspace"): java.io.IOException: error=24, Too many open files at java.lang.ProcessBuilder.start(ProcessBuilder.java:459) at hudson.Proc$LocalProc.