[jetty-users] Jetty with LDAP : Error: Too many open files

[<sushil.singh@xxxxxxxxxx>]

Hey Guys 

I am using jetty 6.1.22 to run web application on Unix server , which does
LDAP authentication for the users.
I am getting this exception when there are more than 5-6 users logged in :

javax.security.auth.login.LoginException: java.lang.RuntimeException:
Unable to establish root con
text
        at
org.mortbay.jetty.plus.jaas.ldap.LdapLoginModule.initialize(LdapLoginModule.java:562)
        at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at javax.security.auth.login.LoginContext.invoke(LoginContext.java:756)
        at
javax.security.auth.login.LoginContext.access$000(LoginContext.java:186)
        at javax.security.auth.login.LoginContext$4.run(LoginContext.java:683)
        at java.security.AccessController.doPrivileged(Native Method)
        at
javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
        at javax.security.auth.login.LoginContext.login(LoginContext.java:579)
        at
org.mortbay.jetty.plus.jaas.JAASUserRealm.authenticate(JAASUserRealm.java:231)
        at
org.mortbay.jetty.security.BasicAuthenticator.authenticate(BasicAuthenticator.java:62)
        at org.mortbay.jetty.Request.getUserPrincipal(Request.java:1270)
        at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:224)
        at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
        at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
        at
org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
        at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
        at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
        at
org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
        at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
        at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: javax.naming.CommunicationException: ldap.mine.com:389 [Root
exception is java.net.SocketException: Too many open files]
        at com.sun.jndi.ldap.Connection.<init>(Connection.java:207)
        at com.sun.jndi.ldap.LdapClient.<init>(LdapClient.java:118)
        at com.sun.jndi.ldap.LdapClient.getInstance(LdapClient.java:1580)
        at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2616)
        at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:287)
        at
com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:175)
        at
com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:193)
        at
com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:136)
        at
com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:66)
        at
javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
        at
javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
        at javax.naming.InitialContext.init(InitialContext.java:223)
        at javax.naming.InitialContext.<init>(InitialContext.java:197)
        at
javax.naming.directory.InitialDirContext.<init>(InitialDirContext.java:82)
        at
org.mortbay.jetty.plus.jaas.ldap.LdapLoginModule.initialize(LdapLoginModule.java:558)
        ... 25 more
Caused by: java.net.SocketException: Too many open files
        at java.net.Socket.createImpl(Socket.java:388)
        at java.net.Socket.<init>(Socket.java:362)
        at java.net.Socket.<init>(Socket.java:180)
        at com.sun.jndi.ldap.Connection.createSocket(Connection.java:349)
        at com.sun.jndi.ldap.Connection.<init>(Connection.java:184)
        ... 39 more

Could you please advice ?

I get few suggestions on google :

1). Increase "noFile" value at \root of Unix server.
2). It might be because of many socket connections being opened up but not
being closed , how do I verify that ?

3). Some other version of jasper is required , not sure which one ?

Please advise 

Many Thanks in advance.

Regards
Sushil Singh

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