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Posted to commits@river.apache.org by "Tom Hobbs (JIRA)" <ji...@apache.org> on 2010/09/17 16:23:32 UTC

[jira] Created: (RIVER-350) Changing IP underneath Reggie causes changing IP underneath Reggie

Changing IP underneath Reggie causes changing IP underneath Reggie
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                 Key: RIVER-350
                 URL: https://issues.apache.org/jira/browse/RIVER-350
             Project: River
          Issue Type: Bug
          Components: com_sun_jini_reggie
            Reporter: Tom Hobbs


Reported by Chris Dolan on the users list
{quote}
I have a unusual case where Reggie was running on a machine with a
DHCP-assigned IP.  At some point a DHCP renewal changed the IP.  Reggie
successfully kept sending multicast announcements and clients
successfully invoked UnicastDiscoverTask.  However,
JoinManager.RegisterTask and
ServiceDiscoveryManager.LookupCacheImpl.RegisterListenerTask both fail
with UnknownHostException every 120 seconds (which is the Reggie
multicast announce interval).  When the DNS reverted back, then the
problem abruptly went away.

Has anyone seen anything like this before?  I suspect it's a client-side
DNS caching issue, but I'm not certain.  I was surprised that
UnicastDiscoveryTask appeared to work (at least I infer that it worked
because I would never get a registrar proxy for the JoinManager if it
hadn't) since that too is a TCP connection back to the Reggie instance
by hostname.

That particular Reggie was configured for JRMP with the client running
on a 1.5 Sun JVM, so example stacktraces are as follows (with redacted
hostnames):

java.rmi.UnknownHostException: Unknown host: xxxx.; nested exception is:

	java.net.UnknownHostException: xxxx.
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(572)
	at sun.rmi.transport.tcp.TCPChannel.createConnection(185)
	at sun.rmi.transport.tcp.TCPChannel.newConnection(171)
	at sun.rmi.server.UnicastRef.invoke(94)
	at com.sun.jini.reggie.RegistrarImpl_Stub.notify(Unknown Source)
	at com.sun.jini.reggie.RegistrarProxy.notify(159)
	at
net.jini.lookup.ServiceDiscoveryManager.registerListener(3847)
	at net.jini.lookup.ServiceDiscoveryManager.access$600(608)
	at
net.jini.lookup.ServiceDiscoveryManager$LookupCacheImpl$RegisterListener
Task.run(904)
	at com.sun.jini.thread.TaskManager$TaskThread.run(393)
Caused by: java.net.UnknownHostException: xxxx.
	at java.net.PlainSocketImpl.connect(177)
	at java.net.SocksSocketImpl.connect(366)
	at java.net.Socket.connect(519)
	at java.net.Socket.connect(469)
	at java.net.Socket.<init>(366)
	at java.net.Socket.<init>(179)
	at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(22)
	at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(128)
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(569)
	... 9 more

java.rmi.UnknownHostException: Unknown host: xxxx.; nested exception is:

	java.net.UnknownHostException: xxxx.
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(572)
	at sun.rmi.transport.tcp.TCPChannel.createConnection(185)
	at sun.rmi.transport.tcp.TCPChannel.newConnection(171)
	at sun.rmi.server.UnicastRef.invoke(94)
	at com.sun.jini.reggie.RegistrarImpl_Stub.register(Unknown
Source)
	at com.sun.jini.reggie.RegistrarProxy.register(120)
	at net.jini.lookup.JoinManager$ProxyReg.register(1271)
	at net.jini.lookup.JoinManager$RegisterTask.run(794)
	at net.jini.lookup.JoinManager$ProxyRegTask.tryOnce(618)
	at com.sun.jini.thread.RetryTask.run(131)
	at com.sun.jini.thread.TaskManager$TaskThread.run(393)
Caused by: java.net.UnknownHostException: xxxx.
	at java.net.PlainSocketImpl.connect(177)
	at java.net.SocksSocketImpl.connect(366)
	at java.net.Socket.connect(519)
	at java.net.Socket.connect(469)
	at java.net.Socket.<init>(366)
	at java.net.Socket.<init>(179)
	at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(22)
	at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(128)
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(569)
	... 10 more

Chris
{quote}

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[jira] Commented: (RIVER-350) Changing IP underneath Reggie causes changing IP underneath Reggie

Posted by "Tom Hobbs (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/RIVER-350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12910604#action_12910604 ] 

Tom Hobbs commented on RIVER-350:
---------------------------------

Link to the mail:  http://mail-archives.apache.org/mod_mbox/incubator-river-user/201009.mbox/%3c77F1E32F67C8D5479858C0C7E93EB4650271022E@WAL-MAIL.global.avidww.com%3e

> Changing IP underneath Reggie causes changing IP underneath Reggie
> ------------------------------------------------------------------
>
>                 Key: RIVER-350
>                 URL: https://issues.apache.org/jira/browse/RIVER-350
>             Project: River
>          Issue Type: Bug
>          Components: com_sun_jini_reggie
>            Reporter: Tom Hobbs
>
> Reported by Chris Dolan on the users list
> {quote}
> I have a unusual case where Reggie was running on a machine with a
> DHCP-assigned IP.  At some point a DHCP renewal changed the IP.  Reggie
> successfully kept sending multicast announcements and clients
> successfully invoked UnicastDiscoverTask.  However,
> JoinManager.RegisterTask and
> ServiceDiscoveryManager.LookupCacheImpl.RegisterListenerTask both fail
> with UnknownHostException every 120 seconds (which is the Reggie
> multicast announce interval).  When the DNS reverted back, then the
> problem abruptly went away.
> Has anyone seen anything like this before?  I suspect it's a client-side
> DNS caching issue, but I'm not certain.  I was surprised that
> UnicastDiscoveryTask appeared to work (at least I infer that it worked
> because I would never get a registrar proxy for the JoinManager if it
> hadn't) since that too is a TCP connection back to the Reggie instance
> by hostname.
> That particular Reggie was configured for JRMP with the client running
> on a 1.5 Sun JVM, so example stacktraces are as follows (with redacted
> hostnames):
> java.rmi.UnknownHostException: Unknown host: xxxx.; nested exception is:
> 	java.net.UnknownHostException: xxxx.
> 	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(572)
> 	at sun.rmi.transport.tcp.TCPChannel.createConnection(185)
> 	at sun.rmi.transport.tcp.TCPChannel.newConnection(171)
> 	at sun.rmi.server.UnicastRef.invoke(94)
> 	at com.sun.jini.reggie.RegistrarImpl_Stub.notify(Unknown Source)
> 	at com.sun.jini.reggie.RegistrarProxy.notify(159)
> 	at
> net.jini.lookup.ServiceDiscoveryManager.registerListener(3847)
> 	at net.jini.lookup.ServiceDiscoveryManager.access$600(608)
> 	at
> net.jini.lookup.ServiceDiscoveryManager$LookupCacheImpl$RegisterListener
> Task.run(904)
> 	at com.sun.jini.thread.TaskManager$TaskThread.run(393)
> Caused by: java.net.UnknownHostException: xxxx.
> 	at java.net.PlainSocketImpl.connect(177)
> 	at java.net.SocksSocketImpl.connect(366)
> 	at java.net.Socket.connect(519)
> 	at java.net.Socket.connect(469)
> 	at java.net.Socket.<init>(366)
> 	at java.net.Socket.<init>(179)
> 	at
> sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(22)
> 	at
> sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(128)
> 	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(569)
> 	... 9 more
> java.rmi.UnknownHostException: Unknown host: xxxx.; nested exception is:
> 	java.net.UnknownHostException: xxxx.
> 	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(572)
> 	at sun.rmi.transport.tcp.TCPChannel.createConnection(185)
> 	at sun.rmi.transport.tcp.TCPChannel.newConnection(171)
> 	at sun.rmi.server.UnicastRef.invoke(94)
> 	at com.sun.jini.reggie.RegistrarImpl_Stub.register(Unknown
> Source)
> 	at com.sun.jini.reggie.RegistrarProxy.register(120)
> 	at net.jini.lookup.JoinManager$ProxyReg.register(1271)
> 	at net.jini.lookup.JoinManager$RegisterTask.run(794)
> 	at net.jini.lookup.JoinManager$ProxyRegTask.tryOnce(618)
> 	at com.sun.jini.thread.RetryTask.run(131)
> 	at com.sun.jini.thread.TaskManager$TaskThread.run(393)
> Caused by: java.net.UnknownHostException: xxxx.
> 	at java.net.PlainSocketImpl.connect(177)
> 	at java.net.SocksSocketImpl.connect(366)
> 	at java.net.Socket.connect(519)
> 	at java.net.Socket.connect(469)
> 	at java.net.Socket.<init>(366)
> 	at java.net.Socket.<init>(179)
> 	at
> sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(22)
> 	at
> sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(128)
> 	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(569)
> 	... 10 more
> Chris
> {quote}

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