java.io.IOException: Too many open files in system

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java.io.IOException: Too many open files in system

VinodN
Hello Erman,

Hit this error while running adcfgclone appsTier dualfs.. I checked unlimit value. It looks good:

[root@erpfinuat ~]# ulimit -n
65536

This is the error message:

####<Jun 6, 2024 11:39:39 PM IST> <Notice> <WebLogicServer> <erpfinuat.synechron.com> <forms_server1> <main> <<WLS Kernel>> <> <> <1717697379115> <BEA-000365> <Server state changed to STANDBY>
####<Jun 6, 2024 11:39:39 PM IST> <Error> <NodeManager> <erpfinuat.synechron.com> <forms_server1> <main> <<WLS Kernel>> <> <> <1717697379122> <BEA-300040> <I/O error while writing node manager status change message.
java.io.IOException: Too many open files in system
        at java.io.UnixFileSystem.createFileExclusively(Native Method)
        at java.io.File.createTempFile(File.java:2001)
        at weblogic.nodemanager.util.ConcurrentUnixFile.write(ConcurrentUnixFile.java:38)
        at weblogic.nodemanager.common.StateInfoWriter.writeStateInfo(StateInfoWriter.java:45)
        at weblogic.nodemanager.common.StateInfo.save(StateInfo.java:152)
        at weblogic.nodemanager.NMService.writeStateInfo(NMService.java:238)
        at weblogic.nodemanager.NMService.propertyChange(NMService.java:224)
        at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
        at weblogic.management.runtime.RuntimeMBeanDelegate._postSet(RuntimeMBeanDelegate.java:381)
        at weblogic.t3.srvr.ServerRuntime.updateRunState(ServerRuntime.java:411)
        at weblogic.t3.srvr.T3Srvr.setState(T3Srvr.java:207)
        at weblogic.t3.srvr.T3Srvr.initializeAdmin(T3Srvr.java:921)
        at weblogic.t3.srvr.T3Srvr.startup(T3Srvr.java:599)
        at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:473)
        at weblogic.Server.main(Server.java:71)
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Re: java.io.IOException: Too many open files in system

ErmanArslansOracleBlog
Administrator
"[root@erpfinuat ~]# ulimit -n" --> this is for root..

You got to check the APPS OS owner and its limits and configure them to higher values if necessary.
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Re: java.io.IOException: Too many open files in system

VinodN
Thanks Erman.