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Message-ID: <463EAFD5.5000707@ScheduleWorld.com>
Date: Mon, 07 May 2007 00:49:25 -0400
From: Mark Swanson <mark@ScheduleWorld.com>
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To: Apache Directory Developers List <dev@directory.apache.org>
Subject: Re: Bug/Feature request: SO_REUSEADDR
References: <463D6A66.5000202@ScheduleWorld.com> <463DA155.60300@apache.org>
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Emmanuel Lecharny wrote:
> Mark Swanson a écrit :
> 
>> Hello,
> 
> Hi Mark !
> 
>>
>> Please use SO_REUSEADDR when binding to TCP ports.
>> In production, when an ADS server is restarted it fails to start until 
>> all of the sockets that used to be connected exceed their FIN_WAIT1 
>> timeout.
> 
> This is already done :
> 
> ...
>        try
>        {
>            // Disable the disconnection of the clients on unbind
>            SocketAcceptorConfig acceptorCfg = new SocketAcceptorConfig();
>            acceptorCfg.setDisconnectOnUnbind( false );
>            acceptorCfg.setReuseAddress( true );
> ...
> 
> either in 1.0 or in 1.5.
> 
> There must be something different.

Well, just to be sure the line numbers match up so we're talking about 
the same code here is the Exception:

[00:38:48] ERROR [org.apache.directory.daemon.Bootstrapper] - Failed on 
org.apache.directory.server.Service.init(InstallationLayout, String[])
org.apache.directory.shared.ldap.exception.LdapConfigurationException: 
Failed to bind an LDAPservice (389) to the service registry. [Root 
exception is java.net.BindException: Address already in use]
     at 
org.apache.directory.server.jndi.ServerContextFactory.startLDAP0(ServerContextFactory.java:487)
     at 
org.apache.directory.server.jndi.ServerContextFactory.startLDAP(ServerContextFactory.java:401)
     at 
org.apache.directory.server.jndi.ServerContextFactory.afterStartup(ServerContextFactory.java:211)
     at 
org.apache.directory.server.core.DefaultDirectoryService.startup(DefaultDirectoryService.java:239)
     at 
org.apache.directory.server.core.jndi.AbstractContextFactory.getInitialContext(AbstractContextFactory.java:118)
     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.apache.directory.server.Service.init(Service.java:96)
     at 
org.apache.directory.daemon.Bootstrapper.callInit(Bootstrapper.java:151)
     at 
org.apache.directory.daemon.JsvcBootstrapper.init(JsvcBootstrapper.java:56)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at 
org.apache.commons.daemon.support.DaemonLoader.load(DaemonLoader.java:160)
Caused by: java.net.BindException: Address already in use
     at sun.nio.ch.Net.bind(Native Method)
     at 
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
     at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
     at 
org.apache.mina.transport.socket.nio.SocketAcceptor.registerNew(SocketAcceptor.java:429)
     at 
org.apache.mina.transport.socket.nio.SocketAcceptor.access$900(SocketAcceptor.java:52)
     at 
org.apache.mina.transport.socket.nio.SocketAcceptor$Worker.run(SocketAcceptor.java:258) 
    at 
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:43)
     at java.lang.Thread.run(Thread.java:619)

Once all of the existing connections leave FIN_WAIT1 this Exception does 
not happen and the server starts normally.

>>
>> I actually don't understand the resolution.
>> Shall I open a Jira issue for this?
> 
> Yes, I think you should. If the setReuseAddress(true) is not enough, 
> then we need to find something else.
> 
> Can you also add some vital information about the version, the JVM and 
> the system your are using ?

ADS 1.0.1
Linux CentOS 4.4, latest patches, java -version:

java version "1.6.0"
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java HotSpot(TM) 64-Bit Server VM (build 1.6.0-b105, mixed mode)

I will post this all to Jira tomorrow.

Cheers.


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