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Posted to apps-dev@avalon.apache.org by Greg Steuck <gr...@nest.cx> on 2002/11/14 03:36:51 UTC
Re: socket connection disappears
>>>>> "Ed" == Ed Coughlin <ec...@gollaborate.com> writes:
Ed> I cannot find any deliberate code in the client or server app
Ed> that deliberately closes the socket and all ioexceptions are
Ed> caught and logged as far as i can tell.
org.apache.avalon.cornerstone.services.connection.ConnectionHandler
as of revision 1.6 documents:
/**
* Processes connections as they occur. The handler should not
* close the <tt>connection</tt>, the caller will do that.
*
* @param connection the connection
* @exception IOException if an error reading from socket occurs
* @exception ProtocolException if an error handling connection occurs
*/
void handleConnection( Socket connection )
throws IOException, ProtocolException;
Could that be the reason your connections are getting closed?
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Re: socket connection disappears
Posted by Greg Steuck <gr...@nest.cx>.
>>>>> "Ed" == Ed Coughlin <ec...@gollaborate.com> writes:
Ed> Well, glad you asked that question. I went looking for a recent
Ed> download of cornestone and couldn't locate anything at
I doubt there exists a recent release of cornerstone. I usually check
out the source tree (generic instructions should be on jakarta
site). Then I build it with ant.
Ed> The AutoPublisher came into the picture when I studied the
Ed> altrmidemo assembly.xml and noted that it was using the
Ed> AutoPublisher as the class for the application listener. I
Ed> relied on the demo as the reference implementation of the new
Ed> version of avalon/pheonix. Perhaps that was not a good idea but
Ed> I wasn't able to find a good example of a connection and thread
Ed> manager implementation elsewhere.
Cursory look over jabaserver doesn't reveal why it needs AutoPublisher
at all. I would try to remove the listener completely. But it isn't
relevant to your problems AFACT.
Ed> I'll let you know how that test works and again I appreciate
Ed> your assistance. If I can obtain a copy of the code I'll be
Ed> better able to understand how things are working under the hood.
http://jakarta.apache.org/site/cvsindex.html should get you started.
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Re: manual jakarta-avalon-cornerstone build available (was: Re:
socket connection disappears)
Posted by Leo Simons <le...@apache.org>.
following up on myself...silly me :)
The nightlies are being moved to a different machine. atm you can get
most stuff from
http://cvs.apache.org/builds/jakarta-avalon/nightly
cheers,
- Leo
On Fri, 2002-11-15 at 14:34, Leo Simons wrote:
> Hi Ed, others,
>
> until we get our nightly build system working again, it is a bit
> cumbersome to get avalon binaries for some of our stuff. I've manually
> built a cornerstone distribution based on current (15/11) cvs code. It
> is available at
>
> http://cvs.apache.org/~leosimons/cornerstone/
>
> note this is not an official or supported release.
>
> hope this helps,
>
> - Leo Simons
>
> On Fri, 2002-11-15 at 01:38, Ed Coughlin wrote:
> <snip/>
> > Well, glad you asked that question. I went looking for a recent download of
> > cornestone and couldn't locate anything at
> > http://jakarta.apache.org/avalon/cornerstone/ . But I downloaded the demo
> > .07 version from the application area under avalon and noticed a
> > cornerstone.jar with class files date stamped 10/5/2002 which looked pretty
> > recent :). Not the way i like to do things. Do you have a cvs command
> > string for downloading a recent version? I'd love to get it.
> <snip/>
>
>
>
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manual jakarta-avalon-cornerstone build available (was: Re: socket
connection disappears)
Posted by Leo Simons <le...@apache.org>.
Hi Ed, others,
until we get our nightly build system working again, it is a bit
cumbersome to get avalon binaries for some of our stuff. I've manually
built a cornerstone distribution based on current (15/11) cvs code. It
is available at
http://cvs.apache.org/~leosimons/cornerstone/
note this is not an official or supported release.
hope this helps,
- Leo Simons
On Fri, 2002-11-15 at 01:38, Ed Coughlin wrote:
<snip/>
> Well, glad you asked that question. I went looking for a recent download of
> cornestone and couldn't locate anything at
> http://jakarta.apache.org/avalon/cornerstone/ . But I downloaded the demo
> .07 version from the application area under avalon and noticed a
> cornerstone.jar with class files date stamped 10/5/2002 which looked pretty
> recent :). Not the way i like to do things. Do you have a cvs command
> string for downloading a recent version? I'd love to get it.
<snip/>
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Re: socket connection disappears
Posted by Ed Coughlin <ec...@gollaborate.com>.
Hi,
> Is that the Jabaserver from http://sourceforge.net/projects/jabaserver/
> we are discussing here?
>
Yes, it is the jabaserver from sourceforge.
> Check out the cornerstone version your are using. I don't see how this
> can be possible with current code in CVS.
>
Well, glad you asked that question. I went looking for a recent download of
cornestone and couldn't locate anything at
http://jakarta.apache.org/avalon/cornerstone/ . But I downloaded the demo
.07 version from the application area under avalon and noticed a
cornerstone.jar with class files date stamped 10/5/2002 which looked pretty
recent :). Not the way i like to do things. Do you have a cvs command
string for downloading a recent version? I'd love to get it.
> Ed> Does anyone have suggestions on how I need to regulate
> Ed> the AutoPublisher so that it does not pre-maturely release the
> Ed> connection handler?
>
> I must be missing something, could you explain how publishing is
> pertinent to the problem you are seeing? I don't see any connection
> between DefaultConnectionManager and AutoPublisher.
>
The AutoPublisher came into the picture when I studied the altrmidemo
assembly.xml and noted that it was using the AutoPublisher as the class for
the application listener. I relied on the demo as the reference
implementation of the new version of avalon/pheonix. Perhaps that was not a
good idea but I wasn't able to find a good example of a connection and
thread manager implementation elsewhere. I believe I attempted to swap the
AutoPublisher class with the actual reference to the jabaserver application
listener class without obtaining different results. But I will try again.
Also, I embedded the actual assembly.xml and config.xml in the last email if
you have a chance to review it. It sounds like I might have made some
obvious mistakes that you would pick up on.
I'll let you know how that test works and again I appreciate your
assistance. If I can obtain a copy of the code I'll be better able to
understand how things are working under the hood.
Thanks
Ed
> Thanks
> Greg
>
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Re: socket connection disappears
Posted by Greg Steuck <gr...@nest.cx>.
Is that the Jabaserver from http://sourceforge.net/projects/jabaserver/
we are discussing here?
>>>>> "Ed" == Ed Coughlin <ec...@gollaborate.com> writes:
Ed> Greg, Thanks for the suggestion. My implementation of the
Ed> ConnectionHandler does not perform a disconnect or socket
Ed> close(). I understood you to be saying that it should not.
This is correct.
org.apache.avalon.cornerstone.blocks.connection.ConnectionRunner will
close the socket for you after your ConnectionHandler.handleConnection()
exited.
Ed> Your suggestion did cause me to look into the application
Ed> listener that i needed to implement as part of the port to the
Ed> newer Avalon since it is being called by the FW to instantiate
Ed> the ConnectionHandler. I discovered that the FW is calling the
Ed> ReleaseConnectionHandler method implemented by the application
Ed> listener.
Ed> What I don't understand is why it is doing so when the handler
Ed> is in the middle of parsing and emitting xml messages over the
Ed> socket.
Check out the cornerstone version your are using. I don't see how this
can be possible with current code in CVS.
Ed> Does anyone have suggestions on how I need to regulate
Ed> the AutoPublisher so that it does not pre-maturely release the
Ed> connection handler?
I must be missing something, could you explain how publishing is
pertinent to the problem you are seeing? I don't see any connection
between DefaultConnectionManager and AutoPublisher.
Thanks
Greg
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Re: socket connection disappears
Posted by Ed Coughlin <ec...@gollaborate.com>.
Greg,
Thanks for the suggestion. My implementation of the ConnectionHandler does
not perform a disconnect or socket close(). I understood you to be saying
that it should not.
Your suggestion did cause me to look into the application listener that i
needed to implement as part of the port to the newer Avalon since it is
being called by the FW to instantiate the ConnectionHandler. I discovered
that the FW is calling the ReleaseConnectionHandler method implemented by
the application listener.
What I don't understand is why it is doing so when the handler is in the
middle of parsing and emitting xml messages over the socket. Does anyone
have suggestions on how I need to regulate the AutoPublisher so that it does
not pre-maturely release the connection handler?
I've included my assembly.xml and config.xml files in case there is a
glaring mistake in them.
Thanks Greg and if there are any more suggestions I will appreciate hearing
them.
Ed
Assembly.xml
<?xml version="1.0" ?>
- <assembly>
<listener
class="org.apache.avalon.cornerstone.blocks.transport.autopublishing.AutoPub
lisher" name="jaba-listener" />
- <!--
The Storage block
-->
<block
class="org.apache.avalon.cornerstone.blocks.masterstore.RepositoryManager"
name="objectstorage" />
- <!--
The Packet Manager block
-->
- <block
class="org.apache.avalon.cornerstone.blocks.packet.DefaultPacketManager"
name="packet-manager">
<provide name="thread-manager"
role="org.apache.avalon.cornerstone.services.threads.ThreadManager" />
</block>
- <!--
The ThreadManager block
-->
<block
class="org.apache.avalon.cornerstone.blocks.threads.DefaultThreadManager"
name="thread-manager" />
- <!--
The Connection Manager block
-->
- <block
class="org.apache.avalon.cornerstone.blocks.connection.DefaultConnectionMana
ger" name="connections">
<provide name="thread-manager"
role="org.apache.avalon.cornerstone.services.threads.ThreadManager" />
</block>
- <!--
The Socket Manager block
-->
<block
class="org.apache.avalon.cornerstone.blocks.sockets.DefaultSocketManager"
name="sockets" />
- <!--
The TimeScheduler block
-->
<block
class="org.apache.avalon.cornerstone.blocks.transport.authentication.Default
Authenticator" name="altrmi-authenticator" />
- <block
class="org.apache.avalon.cornerstone.blocks.scheduler.DefaultTimeScheduler"
name="scheduler">
<provide name="thread-manager"
role="org.apache.avalon.cornerstone.services.threads.ThreadManager" />
</block>
- <block
class="org.apache.avalon.cornerstone.blocks.transport.publishing.SocketStrea
mPublisher" name="jaba-publisher">
<provide name="sockets"
role="org.apache.avalon.cornerstone.services.sockets.SocketManager" />
<provide name="connections"
role="org.apache.avalon.cornerstone.services.connection.ConnectionManager"
/>
<provide name="altrmi-authenticator"
role="org.apache.excalibur.altrmi.server.AltrmiAuthenticator" />
</block>
- <!--
Below this section are the jabaserver
-->
- <block class="org.novadeck.jabaserver.core.Server" name="jaba-server">
- <!--
The names here must match the names specified for a Block in some conf.xml
file.
The role should be the interface mentioned in the BlockInfo (.xinfo)
files
-->
<provide name="sockets"
role="org.apache.avalon.cornerstone.services.sockets.SocketManager" />
<provide name="connections"
role="org.apache.avalon.cornerstone.services.connection.ConnectionManager"
/>
</block>
</assembly>
Config.xml
- <config>
- <thread-manager>
- <thread-group>
<name>default</name>
- <!--
normal priority == 5, max-priority = 10
-->
<priority>5</priority>
- <!--
are threads deamon threads ?
-->
<is-daemon>false</is-daemon>
<max-threads>40</max-threads>
- <!--
these are ignored at the moment but will be fixed in later revisions
-->
<min-threads>20</min-threads>
<min-spare-threads>20</min-spare-threads>
</thread-group>
</thread-manager>
- <!--
The Storage block
-->
- <objectstorage>
- <repositories>
- <repository
class="org.apache.avalon.cornerstone.blocks.masterstore.File_Persistent_Obje
ct_Repository">
- <protocols>
<protocol>file</protocol>
</protocols>
- <types>
<type>OBJECT</type>
</types>
- <models>
<model>SYNCHRONOUS</model>
<model>ASYNCHRONOUS</model>
<model>CACHE</model>
</models>
</repository>
- <repository
class="org.apache.avalon.cornerstone.blocks.masterstore.File_Persistent_Stre
am_Repository">
- <protocols>
<protocol>file</protocol>
</protocols>
- <types>
<type>STREAM</type>
</types>
- <models>
<model>SYNCHRONOUS</model>
<model>ASYNCHRONOUS</model>
<model>CACHE</model>
</models>
</repository>
</repositories>
</objectstorage>
- <sockets>
- <server-sockets>
<factory name="plain"
class="org.apache.avalon.cornerstone.blocks.sockets.DefaultServerSocketFacto
ry" />
</server-sockets>
- <client-sockets>
<factory name="plain"
class="org.apache.avalon.cornerstone.blocks.sockets.DefaultSocketFactory" />
</client-sockets>
</sockets>
<altrmi-authenticator />
- <jaba-server>
<port>5222</port>
<bind>192.168.0.2</bind>
- <Jabahandler>
<connectiontimeout>360000</connectiontimeout>
</Jabahandler>
- <user-home-factory>
<implementation-class>org.novadeck.jabaserver.users.UserHomeDB</implementati
on-class>
</user-home-factory>
----- Original Message -----
From: "Greg Steuck" <gr...@nest.cx>
To: "Avalon Applications Developers List"
<av...@jakarta.apache.org>
Sent: Wednesday, November 13, 2002 6:36 PM
Subject: Re: socket connection disappears
> >>>>> "Ed" == Ed Coughlin <ec...@gollaborate.com> writes:
>
> Ed> I cannot find any deliberate code in the client or server app
> Ed> that deliberately closes the socket and all ioexceptions are
> Ed> caught and logged as far as i can tell.
>
> org.apache.avalon.cornerstone.services.connection.ConnectionHandler
> as of revision 1.6 documents:
>
> /**
> * Processes connections as they occur. The handler should not
> * close the <tt>connection</tt>, the caller will do that.
> *
> * @param connection the connection
> * @exception IOException if an error reading from socket occurs
> * @exception ProtocolException if an error handling connection occurs
> */
> void handleConnection( Socket connection )
> throws IOException, ProtocolException;
>
> Could that be the reason your connections are getting closed?
>
> --
> To unsubscribe, e-mail:
<ma...@jakarta.apache.org>
> For additional commands, e-mail:
<ma...@jakarta.apache.org>
>
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