NetWorker RESTAPI kan ikke lastes inn med "Native Library /nsr/authc/webapps/nwrestapi/WEB-INF/lib/librestapi64.so already loaded in another classloader"

Summary: NetWorker RESTAPI kan ikke lastes inn: "java.lang.UnsatisfisfiedLinkError: Native Library /nsr/authc/webapps/nwrestapi/WEB-INF/lib/librestapi64.so already loaded in another classloader» ...

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Symptoms

  • NetWorker RESTAPI kan ikke lastes inn: "java.lang.UnsatisfisfiedLinkError: Native Library /nsr/authc/webapps/nwrestapi/WEB-INF/lib/librestapi64.so already loaded in another classloader»
HTTP Status 500 - Servlet.init() for servlet nwrestapi threw exception

type Exception report

message Servlet.init() for servlet nwrestapi threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet.init() for servlet nwrestapi threw exception
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
	org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)
	org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1775)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1734)
	java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Unknown Source)

root cause

java.lang.UnsatisfiedLinkError: Native Library /nsr/authc/webapps/nwrestapi/WEB-INF/lib/librestapi64.so already loaded in another classloader
	java.lang.ClassLoader.loadLibrary0(Unknown Source)
	java.lang.ClassLoader.loadLibrary(Unknown Source)
	java.lang.Runtime.load0(Unknown Source)
	java.lang.System.load(Unknown Source)
	com.emc.nw.webapi.WebApiServlet.loadDbSessionModules(WebApiServlet.java:75)
	com.emc.nw.webapi.WebApiServlet.init(WebApiServlet.java:55)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
	org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)
	org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1775)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1734)
	java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Unknown Source)
  • lsof-kommandoen viser biblioteket i deltilstand:
[root@nw_server ~]#  lsof | grep librestapi64
jsvc       4543 nsrtomcat  DEL       REG              253,2   14881546   67764661 /nsr/authc/webapps/nwrestapi/WEB-INF/lib/librestapi64.so

Cause

Biblioteket er i en DEL-tilstand (foreldet bibliotekfilbeskrivelse) som hindrer at det vanlige biblioteket lastes inn. dermed viser feilen «allerede lastet inn i en annen klasselaster».

Resolution

(1) Startet serveren på nytt for å tømme/laste inn minnet på nytt: NetWorker RESTAPI kan ikke lastes inn med "Native Library /nsr/authc/webapps/nwrestapi/WEB-INF/lib/librestapi64.so already loaded in another classloader"
(2) Importert emcauthctomcat.cer til Java cacerts-nøkkellager: NetWorker: NetWorker REST API emcauthctomcat-sertifikat fjernet fra cacerts-nøkkellageret

Affected Products

NetWorker

Products

NetWorker
Article Properties
Article Number: 000037878
Article Type: Solution
Last Modified: 13 May 2025
Version:  4
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