Nabble - stomp - user

PHP Stomp client moved

2009-11-05T04:40:37Z

Hi,

just to let you all know (with a small delay) that PHP Stomp Client, previously hosted on Google code and documented here has been moved to FUSEForge (http://stomp.fusesource.org/documentation/php/index.html). Incidentally, I released the 1.0.0 version with some bug fixes, so fi you're interested give it a spin.

I updated php page to reflect this move http://stomp.codehaus.org/php and also added a Zend framework's Zend_Queue to the list of available clients

Cheers
--
Dejan Bosanac - http://twitter.com/dejanb

Open Source Integration - http://fusesource.com/
ActiveMQ in Action - http://www.manning.com/snyder/
Blog - http://www.nighttale.net

Dejan Bosanac

Open Source Integration - http://fusesource.com/
ActiveMQ in Action - http://www.manning.com/snyder/
Blog - http://www.nighttale.net

Re: How to bind StompConnect on all network interfaces

2009-10-10T02:41:43Z

The solution is pretty much simpler...
Code like

StompConnect connect = new StompConnect();
connect.setUri("tcp://0.0.0.0:61616");

is all what I needed to bind port 61616 to all interfaces.

How to bind StompConnect on all network interfaces

2009-10-07T03:36:39Z

Hello,

It seems that StompConnect API does not allow binding on all network interfaces (just like JBoss could with option -b 0.0.0.0)
See API at http://stomp.codehaus.org/maven/apidocs/org/codehaus/stomp/jms/StompConnect.html
- it has only setUri/setLocation methods which take the host name string.

Being provided, the host name is used in stompConnect source code to build InetAddress from it and further create server socket.

Does it mean that if I need to bind to all interfaces then I have to iterate over them and bind to each corresponding InetAddress?

This is my current solution by the way.

Thanks,
Alex.

Re: JBOSS messaging and stompConnect

2009-08-09T04:05:21Z

Hi,

Alexander L. wrote:

I am also confused about these settings: -Djava.naming.security.principal=guest and -Djava.naming.security.credentials=guest.

I'm still confused here - no progress was done

Alexander L. wrote:

But main thing I want to know is what should be the name of topic/queue on JBoss?
And what user and password have you added in cpp code?

the topic/queue in JBOSS should be the one you sent to in the C++, if you'll notice in the main.cpp in the vs2005-activemq-example there is the HelloWorldConsumer and in the run method you can see the line destination = session->createQueue( "TEST.FOO" ); change "TEST.FOO" to be the queue name in JBOSS.

now about the change in the code, i assumed that it will use the

Alexander L. wrote:

-Djava.naming.security.principal=guest and -Djava.naming.security.credentials=guest.

but it didn't, so what i did was to change the code of ActiveMQConnectionFactory so the constructor with this signature looks like this.

cms::ConnectionFactory* cms::ConnectionFactory::createCMSConnectionFactory( const std::string& brokerURI )
throw ( cms::CMSException ) {

return new ActiveMQConnectionFactory( brokerURI , "guest", "guest");
}

my addition is in bold.

hope this helps you get a start

Re: StompConnect can not deliver messages to Jboss if name of destination contains / (slash)

2009-08-03T09:01:59Z

Alexander L. wrote:

Hello all,

Can anybody explain such a strange behaviour?

This is a bug of JBoss Messaging 1.x.
Workaround is to have destination names without slashes at all.

StompConnect can not deliver messages to Jboss if name of destination contains / (slash)

2009-07-31T09:19:29Z

Hello all,

Configuration is:
- C++ client (ActiveMQ CMS over Stomp) is sender
- JBoss 5.0 with MQ and MDB is receiver. StompConnect's thread is working inside JBoss

When the name of the JMS topic is laconic "SERVER", c++ client sends message to topic "SERVER", and MDB listening for messages from topic "SERVER", everything is transmitted well.

But when the name of the JMS topic is "SERVER/TOP" (there is slash in the name), c++ client sends message to topic "SERVER/TOP", and MDB listening for messages from topic "SERVER/TOP", an exception is thrown on JBoss side. Full stack of exception is at the end of this message.

However, at the same time when the name of the JMS topic is "SERVER/TOP", but c++ client sends message to topic "SERVER", and MDB still listening for messages from topic "SERVER/TOP", message is received properly. That case is detected accidentally.

Can anybody explain such a strange behaviour?

Exception:
11:42:21,562 ERROR [ExceptionUtil] SessionEndpoint[7b-y2923txf-1-zooy2txf-2p9g2a-w30b3a] createTopic [8b-y2923txf-1-zooy2txf-2p9g2a-w30b3a]
javax.jms.JMSException: There is no administratively defined topic with name:SERVER/TOP
at org.jboss.jms.server.endpoint.ServerSessionEndpoint.createTopic(ServerSessionEndpoint.java:321)
at org.jboss.jms.server.endpoint.advised.SessionAdvised.org$jboss$jms$server$endpoint$advised$SessionAdvised$createTopic$aop(SessionAdvised.java:110)
at org.jboss.jms.server.endpoint.advised.SessionAdvised$createTopic_N1144803973659535745.invokeTarget(SessionAdvised$createTopic_N1144803973659535745.java)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)
at org.jboss.jms.server.container.ServerLogInterceptor.invoke(ServerLogInterceptor.java:105)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.jms.server.endpoint.advised.SessionAdvised.createTopic(SessionAdvised.java)
at org.jboss.jms.wireformat.SessionCreateTopicRequest.serverInvoke(SessionCreateTopicRequest.java:74)
at org.jboss.jms.server.remoting.JMSServerInvocationHandler.invoke(JMSServerInvocationHandler.java:143)
at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:908)
at org.jboss.remoting.transport.local.LocalClientInvoker.invoke(LocalClientInvoker.java:106)
at org.jboss.remoting.Client.invoke(Client.java:1708)
at org.jboss.remoting.Client.invoke(Client.java:612)
at org.jboss.remoting.Client.invoke(Client.java:600)
at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(DelegateSupport.java:189)
at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(DelegateSupport.java:160)
at org.jboss.jms.client.delegate.ClientSessionDelegate.org$jboss$jms$client$delegate$ClientSessionDelegate$createTopic$aop(ClientSessionDelegate.java:353)
at org.jboss.jms.client.delegate.ClientSessionDelegate$createTopic_N1144803973659535745.invokeTarget(ClientSessionDelegate$createTopic_N1144803973659535745.java)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)
at org.jboss.jms.client.container.FailoverValveInterceptor.invoke(FailoverValveInterceptor.java:92)
at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:170)
at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.jms.client.delegate.ClientSessionDelegate.createTopic(ClientSessionDelegate.java)
at org.jboss.jms.client.JBossSession.createTopic(JBossSession.java:260)
at org.codehaus.stomp.jms.StompSession.convertDestination(StompSession.java:96)
at org.codehaus.stomp.jms.StompSession.sendToJms(StompSession.java:71)
at org.codehaus.stomp.jms.ProtocolConverter.onStompSend(ProtocolConverter.java:260)
at org.codehaus.stomp.jms.ProtocolConverter.onStompFrame(ProtocolConverter.java:132)
at org.codehaus.stomp.tcp.TcpTransport.run(TcpTransport.java:131)
at java.lang.Thread.run(Thread.java:619)

Re: JBOSS messaging and stompConnect

2009-07-30T11:08:43Z

Hello NewWay,

Could you share you success a little bit more please?
I am trying to make the same - receive messages on JBoss side (messages sent from C++ client).
I am also confused about these settings: -Djava.naming.security.principal=guest and -Djava.naming.security.credentials=guest.
But main thing I want to know is what should be the name of topic/queue on JBoss?
And what user and password have you added in cpp code?

NewWay wrote:

I got it working
what I needed to do is in the cpp code to add the user and password.

But still, i don't understand the purpose of those lines in the script

rem set properties=%properties% -Djava.naming.security.principal=guest
rem set properties=%properties% -Djava.naming.security.credentials=guest

does stompconnect work with OpenMQ in Glassfish?

2009-07-23T09:44:35Z

I'm having problems getting durable subscriptions to work properly. I'm
running Glassfish v2.1 and the built in OpenMQ (4.3 i think) in it.

stompconnect binds properly and I can connect - here's the STOMP wire data -
I'm properly getting the ClientID from glassfish as the session header on
CONNECT.

If I send messages while my client is down though, I don't get the pending
messages when the stomp client restarts.

Am I doing something really dumb? I've tried setting the
durable-subscriber-name to the same as the session header value in the
CONNECT and I still get nothing.

vic

====================
Sending bytes:
CONNECT
x-client:167.26.39.34

None
====================
Got:
CONNECTED
session:durable_client_id

====================
Sending bytes:
SUBSCRIBE
x-client:167.26.39.34
durable-subscriber-name:mysubname
destination:/topic/MyFirstTopic

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Re: Stomp Problem with receiving topic

2009-07-07T00:56:54Z

Hi,

what you need is durable subscriber for the topic.

Unfortunately, the best description is here

http://www.nabble.com/stomp-durable-subscriber-td19446909.html

should write a doc for it.

Cheers
--
Dejan Bosanac

Open Source Integration - http://fusesource.com/
ActiveMQ in Action - http://www.manning.com/snyder/
Blog - http://www.nighttale.net

On Sat, Jun 27, 2009 at 7:58 AM, Plew <plew@...> wrote:

Thank you Roger

the problem is, that I have more describer for one topic, and they want to
get all unread messages when they "log in" at the server....

Roger Hoover wrote:
>
> I think that's the way topics are supposed to work. As far as I know, you
> have to be subscribed to the topic in order to get messages that were
> published to it. You would need to implement a PHP daemon that remains
> subscribed to the topic.
>
> If you want to pick up messages periodically and you only have one
> consumer
> for each message, you can use a queue.
>
> HTH,
>
> Roger
>
> On Fri, Jun 26, 2009 at 9:29 AM, Plew <plew@...> wrote:
>
>>
>> Hi
>>
>> i've got a problem with Stomp+PHP 5+ActiveMQ 5.2, I'm new to MQ and JMS,
>> hope you can help me.
>>
>> I want to output all messages from a subscribed topic with PHP. The
>> problem
>> is, only the last message wich was sent by an client to the topic is
>> shown
>> by the subscriber, but I want to receive also the old messages from the
>> topic and not only the last one. Also the PHP-Script is not working, when
>> the topic stores old messages, nothing is shown - it's only working when
>> it's listening and the client send something new to the topic???
>>
>> I tried this sheet of code for the Subscriber (for sending i used the
>> ApacheMQ-Bin Webfrontend).
>>
>> <?php
>> require_once("Stomp.php");
>> $con = new Stomp("tcp://192.0.0.101:61613");
>> $con->connect();
>> $con->subscribe("/topic/test");
>> $msg = $con->readFrame();
>> echo $msg->body."\n";
>> $con->ack($msg);
>> $con->disconnect();
>> ?>
>>
>>
>> So what should i do, to get all the unreceived messages from the topic,
>> which where send between last subscription an now, without polling all
>> the
>> time with one script and a neverending loop, i want to poll cyclic with
>> a
>> script, to get one or more messages from the topic???
>>
>> greetings
>> Stefan
>> --
>> View this message in context:
>> http://www.nabble.com/Stomp-Problem-with-receiving-topic-tp24223394p24223394.html
>> Sent from the stomp - user mailing list archive at Nabble.com.
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe from this list, please visit:
>>
>> http://xircles.codehaus.org/manage_email
>>
>>
>>
>
>

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Dejan Bosanac

Open Source Integration - http://fusesource.com/
ActiveMQ in Action - http://www.manning.com/snyder/
Blog - http://www.nighttale.net

Re: Stomp Problem with receiving topic

2009-06-29T23:10:25Z

Based on your description of the problem, it sounds to me like a messaging product is not a good fit for your requirements. Some kind of RSS or Atom server would be well suited. Producers can publish to the Atom/RSS feed and consumers can get new items for them every time they "log in".

On Fri, Jun 26, 2009 at 10:58 PM, Plew <plew@...> wrote:

Thank you Roger

the problem is, that I have more describer for one topic, and they want to
get all unread messages when they "log in" at the server....

Roger Hoover wrote:
>
> I think that's the way topics are supposed to work. As far as I know, you
> have to be subscribed to the topic in order to get messages that were
> published to it. You would need to implement a PHP daemon that remains
> subscribed to the topic.
>
> If you want to pick up messages periodically and you only have one
> consumer
> for each message, you can use a queue.
>
> HTH,
>
> Roger
>
> On Fri, Jun 26, 2009 at 9:29 AM, Plew <plew@...> wrote:
>
>>
>> Hi
>>
>> i've got a problem with Stomp+PHP 5+ActiveMQ 5.2, I'm new to MQ and JMS,
>> hope you can help me.
>>
>> I want to output all messages from a subscribed topic with PHP. The
>> problem
>> is, only the last message wich was sent by an client to the topic is
>> shown
>> by the subscriber, but I want to receive also the old messages from the
>> topic and not only the last one. Also the PHP-Script is not working, when
>> the topic stores old messages, nothing is shown - it's only working when
>> it's listening and the client send something new to the topic???
>>
>> I tried this sheet of code for the Subscriber (for sending i used the
>> ApacheMQ-Bin Webfrontend).
>>
>> <?php
>> require_once("Stomp.php");
>> $con = new Stomp("tcp://192.0.0.101:61613");
>> $con->connect();
>> $con->subscribe("/topic/test");
>> $msg = $con->readFrame();
>> echo $msg->body."\n";
>> $con->ack($msg);
>> $con->disconnect();
>> ?>
>>
>>
>> So what should i do, to get all the unreceived messages from the topic,
>> which where send between last subscription an now, without polling all
>> the
>> time with one script and a neverending loop, i want to poll cyclic with
>> a
>> script, to get one or more messages from the topic???
>>
>> greetings
>> Stefan
>> --
>> View this message in context:
>> http://www.nabble.com/Stomp-Problem-with-receiving-topic-tp24223394p24223394.html
>> Sent from the stomp - user mailing list archive at Nabble.com.
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe from this list, please visit:
>>
>> http://xircles.codehaus.org/manage_email
>>
>>
>>
>
>

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Re: Stomp Problem with receiving topic

2009-06-26T22:58:20Z

Thank you Roger

the problem is, that I have more describer for one topic, and they want to get all unread messages when they "log in" at the server....

Roger Hoover wrote:

I think that's the way topics are supposed to work. As far as I know, you
have to be subscribed to the topic in order to get messages that were
published to it. You would need to implement a PHP daemon that remains
subscribed to the topic.

If you want to pick up messages periodically and you only have one consumer
for each message, you can use a queue.

HTH,

Roger

On Fri, Jun 26, 2009 at 9:29 AM, Plew <plew@gmx.de> wrote:

>
> Hi
>
> i've got a problem with Stomp+PHP 5+ActiveMQ 5.2, I'm new to MQ and JMS,
> hope you can help me.
>
> I want to output all messages from a subscribed topic with PHP. The problem
> is, only the last message wich was sent by an client to the topic is shown
> by the subscriber, but I want to receive also the old messages from the
> topic and not only the last one. Also the PHP-Script is not working, when
> the topic stores old messages, nothing is shown - it's only working when
> it's listening and the client send something new to the topic???
>
> I tried this sheet of code for the Subscriber (for sending i used the
> ApacheMQ-Bin Webfrontend).
>
> <?php
> require_once("Stomp.php");
> $con = new Stomp("tcp://192.0.0.101:61613");
> $con->connect();
> $con->subscribe("/topic/test");
> $msg = $con->readFrame();
> echo $msg->body."\n";
> $con->ack($msg);
> $con->disconnect();
> ?>
>
>
> So what should i do, to get all the unreceived messages from the topic,
> which where send between last subscription an now, without polling all the
> time with one script and a neverending loop, i want to poll cyclic with a
> script, to get one or more messages from the topic???
>
> greetings
> Stefan
> --
> View this message in context:
> http://www.nabble.com/Stomp-Problem-with-receiving-topic-tp24223394p24223394.html
> Sent from the stomp - user mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe from this list, please visit:
>
> http://xircles.codehaus.org/manage_email
>
>
>

Re: Stomp Problem with receiving topic

2009-06-26T10:37:39Z

I think that's the way topics are supposed to work. As far as I know, you have to be subscribed to the topic in order to get messages that were published to it. You would need to implement a PHP daemon that remains subscribed to the topic.

If you want to pick up messages periodically and you only have one consumer for each message, you can use a queue.

HTH,

Roger

On Fri, Jun 26, 2009 at 9:29 AM, Plew <plew@...> wrote:

Hi

i've got a problem with Stomp+PHP 5+ActiveMQ 5.2, I'm new to MQ and JMS,
hope you can help me.

I want to output all messages from a subscribed topic with PHP. The problem
is, only the last message wich was sent by an client to the topic is shown
by the subscriber, but I want to receive also the old messages from the
topic and not only the last one. Also the PHP-Script is not working, when
the topic stores old messages, nothing is shown - it's only working when
it's listening and the client send something new to the topic???

I tried this sheet of code for the Subscriber (for sending i used the
ApacheMQ-Bin Webfrontend).

<?php
require_once("Stomp.php");
$con = new Stomp("tcp://192.0.0.101:61613");
$con->connect();
$con->subscribe("/topic/test");
$msg = $con->readFrame();
echo $msg->body."\n";
$con->ack($msg);
$con->disconnect();
?>

So what should i do, to get all the unreceived messages from the topic,
which where send between last subscription an now, without polling all the
time with one script and a neverending loop, i want to poll cyclic with a
script, to get one or more messages from the topic???

greetings
Stefan
--
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Stomp Problem with receiving topic

2009-06-26T09:29:08Z

Hi

i've got a problem with Stomp+PHP 5+ActiveMQ 5.2, I'm new to MQ and JMS, hope you can help me.

I want to output all messages from a subscribed topic with PHP. The problem is, only the last message wich was sent by an client to the topic is shown by the subscriber, but I want to receive also the old messages from the topic and not only the last one. Also the PHP-Script is not working, when the topic stores old messages, nothing is shown - it's only working when it's listening and the client send something new to the topic???

I tried this sheet of code for the Subscriber (for sending i used the ApacheMQ-Bin Webfrontend).

<?php
require_once("Stomp.php");
$con = new Stomp("tcp://192.0.0.101:61613");
$con->connect();
$con->subscribe("/topic/test");
$msg = $con->readFrame();
echo $msg->body."\n";
$con->ack($msg);
$con->disconnect();
?>

So what should i do, to get all the unreceived messages from the topic, which where send between last subscription an now, without polling all the time with one script and a neverending loop, i want to poll cyclic with a script, to get one or more messages from the topic???

greetings
Stefan

Re: Socket error disconnect resource leak

2009-06-23T13:49:08Z

How do we get this incorporated into a StompConnect release? I'm experiencing an issue related to this.

In the process of testing a STOMP connector, I wrote an application that connects via STOMP, sends a batch of messages, receives those same messages, and then attempts to compare the checksum on the original message and the received message.

During testing, I noticed that about 50% of the time, when I would run the application it would miss the first 3-6 messages and thought maybe the issue was with my client. However, in the log, I was getting exceptions like this:

Failed to process message due to: java.net.SocketException: Software caused connection abort: socket write error. Message: 

java.net.SocketException: Software caused connection abort: socket write error
	at java.net.SocketOutputStream.socketWrite0(Native Method)
	at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
	at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
	at org.codehaus.stomp.tcp.TcpBufferedOutputStream.flush(TcpBufferedOutputStream.java:106)
	at java.io.DataOutputStream.flush(DataOutputStream.java:106)
	at org.codehaus.stomp.tcp.TcpTransport.onStompFrame(TcpTransport.java:105)
	at org.codehaus.stomp.jms.ProtocolConverter.sendToStomp(ProtocolConverter.java:467)
	at org.codehaus.stomp.jms.StompSession.sendToStomp(StompSession.java:83)
	at org.codehaus.stomp.jms.StompSubscription.onMessage(StompSubscription.java:92)
	at com.ibm.mq.jms.MQMessageConsumer.receiveAsync(MQMessageConsumer.java:3020)
	at com.ibm.mq.jms.SessionAsyncHelper.run(SessionAsyncHelper.java:412)
	at java.lang.Thread.run(Thread.java:619)

This was very confusing because they were happening during the sending phase of the app, not during the receiving phase, yet the exceptions seem to be happening while StompConnect is attempting to send a message through a socket.

What appears to be happening is that, when I run the client the first time, StompConnect registers a subscription for the queue and starts sending messages out the connected socket to the client. But, when the client exits, StompConnect doesn't close and clean up the socket. So, the next time I run the client and send more messages to the queue, StompConnect pulls the first few messages off the queue and attempts to send them out the old, disconnected socket, which fails, hence the "socket write error".

Unfortunately, those failed messages are disappearing from the queue permanently, so never get delivered to the second instance of the client. After a few messages, StompConnect figures out that the old socket is defunct and starts delivering messages to the new subscription.

bwarren wrote:

We've got a scenario where our STOMP clients are on a (very bad) cellular connection and they disconnect and reconnect a lot. StompConnect is built around the assumption that client connections are basically permanent until the service is stopped.

I've found a memory leak in the StompConnect code when a network interruption happens. In the run() method on TcpTransport if it gets an error it calls the stop() method. That's all fine, but the thread and socket are never nulled out and the TcpTransportServer is never notified that the transport object choked so the server object keeps it in the transport collection, and that collection never removes anything unless you call stop() on the server object.

I was able to fix the problem by adding a callback to the server object when the transport catches the exception to tell the server object to remove that transport from the collection.

Re: JBOSS messaging and stompConnect

2009-06-15T08:28:41Z

I got it working
what I needed to do is in the cpp code to add the user and password.

But still, i don't understand the purpose of those lines in the script

rem set properties=%properties% -Djava.naming.security.principal=guest
rem set properties=%properties% -Djava.naming.security.credentials=guest

JBOSS messaging and stompConnect

2009-06-15T07:21:26Z

Hello all,

I'm trying to create a C++ client for JBOSS messaging using stompConnect.

I'm using:

JBOSS 4.2.3.GA

JBOSS-messaging-1.4.2.GA-SP1

stompConnect-1.0

activemq-cpp-library-3.0

in the activemq I'm trying to run the example program, where the only thing I did was to set the brokerURI to
"tcp://127.0.0.1:61613"
"?wireFormat=stomp"
I used the script from the stomp site to set up stomp with JBOSS

And here is my problem
I keep getting from the JBOSS side an exception saying that User is NOT authenticated

I noticed that in the message, between user and is there are two spaces and not one, which means that the user parameter arrives empty

Did I miss something out in the connection chain?
isn't the user name taken from the property -Djava.naming.security.principal

You're help would be greatly appreciated.

Re: Socket error disconnect resource leak

2009-05-18T13:50:27Z

It may be useful to post this to the Apache ActiveMQ mailing list: users@...

On Mon, May 18, 2009 at 12:30 PM, bwarren <brad.warren@...> wrote:

We've got a scenario where our STOMP clients are on a (very bad) cellular
connection and they disconnect and reconnect a lot. StompConnect is built
around the assumption that client connections are basically permanent until
the service is stopped.

I've found a memory leak in the StompConnect code when a network
interruption happens. In the run() method on TcpTransport if it gets an
error it calls the stop() method. That's all fine, but the thread and
socket are never nulled out and the TcpTransportServer is never notified
that the transport object choked so the server object keeps it in the
transport collection, and that collection never removes anything unless you
call stop() on the server object.

I was able to fix the problem by adding a callback to the server object when
the transport catches the exception to tell the server object to remove that
transport from the collection.
--
View this message in context: http://www.nabble.com/Socket-error-disconnect-resource-leak-tp23603883p23603883.html
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Socket error disconnect resource leak

2009-05-18T12:30:57Z

We've got a scenario where our STOMP clients are on a (very bad) cellular connection and they disconnect and reconnect a lot. StompConnect is built around the assumption that client connections are basically permanent until the service is stopped.

I've found a memory leak in the StompConnect code when a network interruption happens. In the run() method on TcpTransport if it gets an error it calls the stop() method. That's all fine, but the thread and socket are never nulled out and the TcpTransportServer is never notified that the transport object choked so the server object keeps it in the transport collection, and that collection never removes anything unless you call stop() on the server object.

I was able to fix the problem by adding a callback to the server object when the transport catches the exception to tell the server object to remove that transport from the collection.

Is Support ActionScript 2

2009-04-02T00:15:46Z

Hello,

I have use as3-stomp in flash project and it works well.
However the target player can only run actionscript 2 (such as flash lite, swfcodec and others),
this is the reason why I need a stomp library for actionsctip 2.

I have try to browsing as-stomp project page but no artifacts supported as2 there.
Someone can help me or any suggestions?

Rubyforge

2009-02-28T17:41:45Z

I recently added Johan Sørensen and Pete Hodgson as admins on the
rubyforge project (where the gem is published to).

Hopefully I will no longer be an obstacle to releases!

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Re: stomp rollback

2009-02-19T06:47:16Z

Hi,

it seems that acking a message before a commit still creates this problem. I just reopened the original issue for this https://issues.apache.org/activemq/browse/AMQ-1807.

Until it's fixed, try removing an ack of the message you want to abort and it should be working fine.

Cheers
--
Dejan Bosanac

Open Source Integration - http://fusesource.com/
ActiveMQ in Action - http://www.manning.com/snyder/
Blog - http://www.nighttale.net

On Tue, Feb 17, 2009 at 9:15 PM, jzhang1 <jian.zhang@...> wrote:

upload again. file sub.c

jzhang1 wrote:
>
> i uploaded the sample code. It is using stomp calls from
> https://svn.codehaus.org/stomp/trunk/c/. but could not receive pending
> aborted messages unless re-connect.
>
>
>
> Brian McCallister wrote:
>>
>> On Sun, Feb 15, 2009 at 12:13 PM, jzhang1 <jian.zhang@...> wrote:
>>> http://www.nabble.com/file/p22065197/sub sub
>>> I am using apache-activemq-5.2.0.
>>
>> Certainly should be fixed there. I'd ask on the dev@...
>> list
>>
>> -Brian
>>
>>>
>>>
>>>
>>> Brian McCallister wrote:
>>>>
>>>> On Thu, Feb 12, 2009 at 7:20 PM, jzhang1 <jian.zhang@...> wrote:
>>>>>
>>>>> stomp guru,
>>>>>
>>>>> I use stomp to connect ActiveMQ. I am curious whether stomp provide
>>>>> backout.
>>>>>
>>>>> all enqueue and dequeue functions calls that have occurred since the
>>>>> last
>>>>> syncpoint are to be backed out. Messages put as part of a unit of work
>>>>> are
>>>>> deleted; messages retrieved as part of a unit of work are reinstated
>>>>> on
>>>>> the
>>>>> queue.
>>>>>
>>>>> I call stomp "abort", sleep seconds, then call receive. But i can not
>>>>> receive the backout messages unless I restart stomp connection.
>>>>
>>>> IIRC this is an old bug in ActiveMQ --- which version are you using?
>>>>
>>>>>
>>>>> Thanks
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>> http://www.nabble.com/stomp-rollback-tp21989462p21989462.html
>>>>> Sent from the stomp - user mailing list archive at Nabble.com.
>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe from this list, please visit:
>>>>>
>>>>> http://xircles.codehaus.org/manage_email
>>>>>
>>>>>
>>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe from this list, please visit:
>>>>
>>>> http://xircles.codehaus.org/manage_email
>>>>
>>>>
>>>>
>>>>
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/stomp-rollback-tp21989462p22026926.html
>>> Sent from the stomp - user mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe from this list, please visit:
>>>
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>>>
>>>
>>>
>>
>> ---------------------------------------------------------------------
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>>
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>>
>>
>>
>>
>
>

http://www.nabble.com/file/p22065418/sub.c sub.c
--
View this message in context: http://www.nabble.com/stomp-rollback-tp21989462p22065418.html

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Blog - http://www.nighttale.net

Re: stomp rollback

2009-02-17T12:15:22Z

upload again. file sub.c

i uploaded the sample code. It is using stomp calls from https://svn.codehaus.org/stomp/trunk/c/. but could not receive pending aborted messages unless re-connect.

Brian McCallister wrote:

On Sun, Feb 15, 2009 at 12:13 PM, jzhang1 <jian.zhang@etrade.com> wrote:
>sub
> I am using apache-activemq-5.2.0.

Certainly should be fixed there. I'd ask on the dev@activemq.apache.org list

-Brian

>
>
>
> Brian McCallister wrote:
>>
>> On Thu, Feb 12, 2009 at 7:20 PM, jzhang1 <jian.zhang@etrade.com> wrote:
>>>
>>> stomp guru,
>>>
>>> I use stomp to connect ActiveMQ. I am curious whether stomp provide
>>> backout.
>>>
>>> all enqueue and dequeue functions calls that have occurred since the last
>>> syncpoint are to be backed out. Messages put as part of a unit of work
>>> are
>>> deleted; messages retrieved as part of a unit of work are reinstated on
>>> the
>>> queue.
>>>
>>> I call stomp "abort", sleep seconds, then call receive. But i can not
>>> receive the backout messages unless I restart stomp connection.
>>
>> IIRC this is an old bug in ActiveMQ --- which version are you using?
>>
>>>
>>> Thanks
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/stomp-rollback-tp21989462p21989462.html
>>> Sent from the stomp - user mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe from this list, please visit:
>>>
>>> http://xircles.codehaus.org/manage_email
>>>
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe from this list, please visit:
>>
>> http://xircles.codehaus.org/manage_email
>>
>>
>>
>>
>
> --
> View this message in context: http://www.nabble.com/stomp-rollback-tp21989462p22026926.html
> Sent from the stomp - user mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
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sub.c

Re: stomp rollback

2009-02-17T12:03:14Z

i uploaded the sample code. It is using stomp calls from https://svn.codehaus.org/stomp/trunk/c/. but could not receive pending aborted messages unless re-connect.

Brian McCallister wrote:

On Sun, Feb 15, 2009 at 12:13 PM, jzhang1 <jian.zhang@etrade.com> wrote:
>sub
> I am using apache-activemq-5.2.0.

Certainly should be fixed there. I'd ask on the dev@activemq.apache.org list

-Brian

>
>
>
> Brian McCallister wrote:
>>
>> On Thu, Feb 12, 2009 at 7:20 PM, jzhang1 <jian.zhang@etrade.com> wrote:
>>>
>>> stomp guru,
>>>
>>> I use stomp to connect ActiveMQ. I am curious whether stomp provide
>>> backout.
>>>
>>> all enqueue and dequeue functions calls that have occurred since the last
>>> syncpoint are to be backed out. Messages put as part of a unit of work
>>> are
>>> deleted; messages retrieved as part of a unit of work are reinstated on
>>> the
>>> queue.
>>>
>>> I call stomp "abort", sleep seconds, then call receive. But i can not
>>> receive the backout messages unless I restart stomp connection.
>>
>> IIRC this is an old bug in ActiveMQ --- which version are you using?
>>
>>>
>>> Thanks
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/stomp-rollback-tp21989462p21989462.html
>>> Sent from the stomp - user mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe from this list, please visit:
>>>
>>> http://xircles.codehaus.org/manage_email
>>>
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe from this list, please visit:
>>
>> http://xircles.codehaus.org/manage_email
>>
>>
>>
>>
>
> --
> View this message in context: http://www.nabble.com/stomp-rollback-tp21989462p22026926.html
> Sent from the stomp - user mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
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Re: stomp rollback

2009-02-17T01:38:20Z

Hi,

there have been some fixes in this area (transaction aborting) for the 5.3, so may want to try 5.3-SNAPSHOT and see if it works for you

http://people.apache.org/repo/m2-snapshot-repository/org/apache/activemq/apache-activemq/5.3-SNAPSHOT/

I've also documented it a bit (with a working example), so take a look at

http://cwiki.apache.org/confluence/display/ACTIVEMQ/How+do+I+unack+the+message+with+Stomp

Cheers
--
Dejan Bosanac

Open Source Integration - http://fusesource.com/
ActiveMQ in Action - http://www.manning.com/snyder/
Blog - http://www.nighttale.net

On Sun, Feb 15, 2009 at 10:42 PM, Brian McCallister <brianm@...> wrote:

On Sun, Feb 15, 2009 at 12:13 PM, jzhang1 <jian.zhang@...> wrote:
>
> I am using apache-activemq-5.2.0.

Certainly should be fixed there. I'd ask on the dev@... list

-Brian

>
>
>
> Brian McCallister wrote:
>>
>> On Thu, Feb 12, 2009 at 7:20 PM, jzhang1 <jian.zhang@...> wrote:
>>>
>>> stomp guru,
>>>
>>> I use stomp to connect ActiveMQ. I am curious whether stomp provide
>>> backout.
>>>
>>> all enqueue and dequeue functions calls that have occurred since the last
>>> syncpoint are to be backed out. Messages put as part of a unit of work
>>> are
>>> deleted; messages retrieved as part of a unit of work are reinstated on
>>> the
>>> queue.
>>>
>>> I call stomp "abort", sleep seconds, then call receive. But i can not
>>> receive the backout messages unless I restart stomp connection.
>>
>> IIRC this is an old bug in ActiveMQ --- which version are you using?
>>
>>>
>>> Thanks
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/stomp-rollback-tp21989462p21989462.html
>>> Sent from the stomp - user mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe from this list, please visit:
>>>
>>> http://xircles.codehaus.org/manage_email
>>>
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe from this list, please visit:
>>
>> http://xircles.codehaus.org/manage_email
>>
>>
>>
>>
>
> --
> View this message in context: http://www.nabble.com/stomp-rollback-tp21989462p22026926.html
> Sent from the stomp - user mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
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>
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Blog - http://www.nighttale.net

Re: stomp rollback

2009-02-15T13:42:10Z

On Sun, Feb 15, 2009 at 12:13 PM, jzhang1 <jian.zhang@...> wrote:
>
> I am using apache-activemq-5.2.0.

Certainly should be fixed there. I'd ask on the dev@... list

-Brian

>
>
>
> Brian McCallister wrote:
>>
>> On Thu, Feb 12, 2009 at 7:20 PM, jzhang1 <jian.zhang@...> wrote:
>>>
>>> stomp guru,
>>>
>>> I use stomp to connect ActiveMQ. I am curious whether stomp provide
>>> backout.
>>>
>>> all enqueue and dequeue functions calls that have occurred since the last
>>> syncpoint are to be backed out. Messages put as part of a unit of work
>>> are
>>> deleted; messages retrieved as part of a unit of work are reinstated on
>>> the
>>> queue.
>>>
>>> I call stomp "abort", sleep seconds, then call receive. But i can not
>>> receive the backout messages unless I restart stomp connection.
>>
>> IIRC this is an old bug in ActiveMQ --- which version are you using?
>>
>>>
>>> Thanks
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/stomp-rollback-tp21989462p21989462.html
>>> Sent from the stomp - user mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe from this list, please visit:
>>>
>>> http://xircles.codehaus.org/manage_email
>>>
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe from this list, please visit:
>>
>> http://xircles.codehaus.org/manage_email
>>
>>
>>
>>
>
> --
> View this message in context: http://www.nabble.com/stomp-rollback-tp21989462p22026926.html
> Sent from the stomp - user mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
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>
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Re: stomp rollback

2009-02-15T12:12:56Z

I am using apache-activemq-5.2.0.

Brian McCallister wrote:

On Thu, Feb 12, 2009 at 7:20 PM, jzhang1 <jian.zhang@etrade.com> wrote:
>
> stomp guru,
>
> I use stomp to connect ActiveMQ. I am curious whether stomp provide backout.
>
> all enqueue and dequeue functions calls that have occurred since the last
> syncpoint are to be backed out. Messages put as part of a unit of work are
> deleted; messages retrieved as part of a unit of work are reinstated on the
> queue.
>
> I call stomp "abort", sleep seconds, then call receive. But i can not
> receive the backout messages unless I restart stomp connection.

IIRC this is an old bug in ActiveMQ --- which version are you using?

>
> Thanks
>
> --
> View this message in context: http://www.nabble.com/stomp-rollback-tp21989462p21989462.html
> Sent from the stomp - user mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe from this list, please visit:
>
> http://xircles.codehaus.org/manage_email
>
>
>

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Re: stomp rollback

2009-02-13T21:20:42Z

On Thu, Feb 12, 2009 at 7:20 PM, jzhang1 <jian.zhang@...> wrote:

>
> stomp guru,
>
> I use stomp to connect ActiveMQ. I am curious whether stomp provide backout.
>
> all enqueue and dequeue functions calls that have occurred since the last
> syncpoint are to be backed out. Messages put as part of a unit of work are
> deleted; messages retrieved as part of a unit of work are reinstated on the
> queue.
>
> I call stomp "abort", sleep seconds, then call receive. But i can not
> receive the backout messages unless I restart stomp connection.

IIRC this is an old bug in ActiveMQ --- which version are you using?

>
> Thanks
>
> --
> View this message in context: http://www.nabble.com/stomp-rollback-tp21989462p21989462.html
> Sent from the stomp - user mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe from this list, please visit:
>
> http://xircles.codehaus.org/manage_email
>
>
>

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stomp rollback

2009-02-12T19:20:41Z

stomp guru,

I use stomp to connect ActiveMQ. I am curious whether stomp provide backout.

all enqueue and dequeue functions calls that have occurred since the last syncpoint are to be backed out. Messages put as part of a unit of work are deleted; messages retrieved as part of a unit of work are reinstated on the queue.

I call stomp "abort", sleep seconds, then call receive. But i can not receive the backout messages unless I restart stomp connection.

Thanks

stomp client disconnects from the ActiveMQ

2008-12-23T23:24:30Z

Hi, guys,

I'm using stomp gem with ActiveMQ as the broker, recently I found my app doesn't work properly as usual.

I turned on debugging on the ActiveMQ, and I got this from the log:

2008-12-24 03:37:30,092 [127.0.0.1:39746] DEBUG Transport - Transport failed: java.io.EOFException
4815 java.io.EOFException
4816 at java.io.DataInputStream.readByte(DataInputStream.java:250)
4817 at org.apache.activemq.transport.stomp.StompWireFormat.readLine(StompWireFormat.java:186)
4818 at org.apache.activemq.transport.stomp.StompWireFormat.unmarshal(StompWireFormat.java:94)
4819 at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:210)
4820 at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:202)
4821 at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:185)
4822 at java.lang.Thread.run(Thread.java:619)

I googled around, and I found this: http://markmail.org/message/sqsbfpyj35pbxg5s , which is just the same problem with mine, it says it's because the client closed the socket, could someone please help to take a look into it? Thank you.

Regards,
Hao Liu

Re: load balancing

2008-11-21T16:37:51Z

On Nov 14, 2008, at 21:10, andrewk wrote:

> I too have complained of the missing NAK feature in these various
> forums -
> it comes up every few months now I would say.

I would like to thank everybody for their responses. Looks like I will
be switching to RabbitMQ from ActiveMQ and to AMQP from STOMP. AMQP
have NAK feature which will allow me to implement load-balancing
semantics
in more natural manner.

Sincerely,
Vadim

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Re: load balancing

2008-11-21T05:58:11Z

Hi,

ActiveMQ supports a Stomp SUBSCRIBE header called 'activemq.prefetchSize'. You might want to set this to 1 so that there is only one message pending for the consumer. This minimizes the number of unack'd messages at a time.

A solution I can think of to the NACK requirement is to wrap your ACK frame and SEND (for re-enqueue) under one transaction. This way, the message goes back to the queue. The drawback to this approach is that the message might get sent back to the same consumer.

To solve the problem of the above solution, you can extend it by implementing a routing mechanism:
1. all consumer subscribes from a main queue
2. each consumer is assigned to listen to its own queue
3. if a consumer decides to NACK a message (either from the main queue or its own), it should send the message to the next consumer.

This solution solves the problem where the same message goes to the same consumer who NACK'd the message in the first place. But it adds complexity to the solution where in each consumer is required to know the queue(s) of the other consumer(s).

Cheers!

Dex

--- On Sat, 11/15/08, Vadim Zaliva <krokodil@...> wrote:

> From: Vadim Zaliva <krokodil@...>
> Subject: [stomp-user] load balancing
> To: user@...
> Date: Saturday, November 15, 2008, 12:37 PM
> Hi!
>
> I am trying to use ActiveMQ and Stomp protocol to implement
> scenario where are multiple consumers are processing
> messages from single queue. I want to make sure that only
> one consumer will get the message, and he must acknowledge
> it, so the message will get back to queue if it has not
> acknowledged for some time.
>
> One of problems I see is that there is no NAK command in
> stomp. So, once I have received the message I could not send
> NAK to reject it back to the queue, so it will be delivered
> to another consumer.
>
> Another problem, or rather a question, is what happens to
> not ACK-ed messages. Are they delivered to other consumers
> and under what conditions?
>
> Perhaps I can use stomp transactions, but I am not sure how
> they apply to receiving messages.
>
> Sincerely,
> Vadim
>
> ---------------------------------------------------------------------
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>
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Re: load balancing

2008-11-14T21:10:21Z

Hello,

I too have complained of the missing NAK feature in these various forums - it comes up every few months now I would say.

In client ack mode, if you don't ack, then the message is retained on the server in some limbo, but not sent again (yet).

Once the connection is lost to the client that received the message, but did not ACK, the message is returned to the queue, and will then be sent again to a different connection/subscription.

Some have suggested before to use disconnect/reconnect/resubscribe as a poor man's NAK - as this has the effect of returning the un-ack'd message back to use. This does have the downside that the same message could keep getting resent again and again, although perhaps the message timeout settings in activemq would help. It has has the downside that unless you are using durable topics, it can result in missing messages.

Stomp transactions do no not help either, as you correctly point out, they only work with sending, not receiving, messages.

I wrote a workaround (that not everyone likes) for use in ActiveMessaging.

Rather than use the hack of severing the connection to simulate a NAK, I wrote my own logic to create a clone of the message (retaining a count of how many times it has been cloned, original message id and send time, etc. in custom headers), and then in a transaction ack the original message and put this cloned message on the queue. So in effect, it is like returning the original message, except because it is a clone, it loses its place in the queue, and some meta data like message id will differ.

Not a perfect solution, but I like it better than killing the connection and resubscribing for the reasons above, though I'll probably end up implementing that option too (there was a user offering to do it and send me a patch, but I don't think that ended up happening).

-Andrew Kuklewicz

Vadim Zaliva wrote:

Hi!

I am trying to use ActiveMQ and Stomp protocol to implement scenario
where are multiple consumers are processing messages from single
queue. I want to make sure that only one consumer will get the
message, and he must acknowledge it, so the message will get back to
queue if it has not acknowledged for some time.

One of problems I see is that there is no NAK command in stomp. So,
once I have received the message I could not send NAK to reject it
back to the queue, so it will be delivered to another consumer.

Another problem, or rather a question, is what happens to not ACK-ed
messages. Are they delivered to other consumers and under what
conditions?

Perhaps I can use stomp transactions, but I am not sure how they apply
to receiving messages.

Sincerely,
Vadim

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load balancing

2008-11-14T20:37:56Z

Hi!

I am trying to use ActiveMQ and Stomp protocol to implement scenario
where are multiple consumers are processing messages from single
queue. I want to make sure that only one consumer will get the
message, and he must acknowledge it, so the message will get back to
queue if it has not acknowledged for some time.

One of problems I see is that there is no NAK command in stomp. So,
once I have received the message I could not send NAK to reject it
back to the queue, so it will be delivered to another consumer.

Another problem, or rather a question, is what happens to not ACK-ed
messages. Are they delivered to other consumers and under what
conditions?

Perhaps I can use stomp transactions, but I am not sure how they apply
to receiving messages.

Sincerely,
Vadim

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No space left on device (28)

2008-11-01T06:24:52Z

Hi,

I managed to download the producer.c and consumer.c and compiled them. But when I tried to run it , I am getting:
[root@localhost producer]# make
g++ -c -D_REENTRANT -DSOLARIS -DHTREE -I/usr/include -I/usr/local/apr/include/apr-1 -L/usr/lib -L/usr/local/lib -L/usr/local/apr/lib main.c -o main.o
In file included from main.c:19:
stomp.h:54:24: warning: no newline at end of file
g++ -dy -L/usr/lib -L/usr/local/lib -L/usr/local/apr/lib -o jms_stomp main.o stomp.o -lapr-1 -lgcc_s
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
[root@localhost producer]# ./jms_stomp
Connecting......Could not connect: No space left on device (28)
[root@localhost producer]#

Does anyone know what this error means and how to fix it?

Thanks alot in advance for all your help.

Regards,
JB

Problem compiling libstomp under Centos

2008-11-01T05:59:51Z

Hi,

I searched google and found an instruction on how to compile libstomp under linux, but I am getting the following error:

root@localhost src]# ./compile.sh
In file included from stomp.c:22:
stomp.h:55:24: warning: no newline at end of file
stomp.c: In function 'stomp_read':
stomp.c:418: warning: passing argument 3 of 'apr_socket_recv' from incompatible pointer type
stomp.c:439:2: warning: no newline at end of file
/usr/bin/ld: cannot find -lapr-0
collect2: ld returned 1 exit status
In file included from main.c:19:
stomp.h:55:24: warning: no newline at end of file
/usr/bin/ld: cannot find -lstomp
collect2: ld returned 1 exit status
[root@localhost src]#

Here is my script:

#!/bin/bash
APACHE_HOME=/usr/src/httpd-2.2.10/srclib/apr
gcc stomp.c -shared -olibstomp.so -I. -I$APACHE_HOME/include -L$APACHE_HOME/lib -lapr-0 -fPIC
gcc main.c -ostomp -I. -I$APACHE_HOME/include -L. -lstomp

Does anyone know how to resolve this problem?

Thank you in advance for all your help.

Regards,
JB