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From Raster3 <crs...@yahoo.co.in>
Subject Re: Dead Letter Queue
Date Mon, 01 Feb 2010 10:24:47 GMT

That sounds good.
I would like to try out this. Will get back soon on this.
Thanks.

Claus Ibsen-2 wrote:
> 
> On Mon, Feb 1, 2010 at 9:58 AM, Raster3 <crscca@yahoo.co.in> wrote:
>>
>> Thanks.
>> For monitoring the dead letter queues we have a application.
>> My motivation here is to learn camel and I am trying to get my
>> perspective
>> correct.
>> So far I have set up the sample camel examples and understood some of
>> them.
>>
> 
>> Rearding what you mentioned- Does camel have anything to offer for
>> monitoring the dead letter queues?
>>
> 
> Camel is a integration kit. You need monitoring tooling for such thing.
> Your organization may very well already use some sort of monitoring
> tooling which can be configured to keep an eye on DLQs in Camel or as
> it may already do in your WebLogic JMS.
> 
> Camel offers notifications (EventNotifier) which can be configured to
> fire when a message is moved into DLQ.
> 
> And you can always do some custom processing when a message is moved
> to DLQ to alert or whatever that a message was moved to the DLQ.
> 
> 
>>
>>
>> Claus Ibsen-2 wrote:
>>>
>>> On Mon, Feb 1, 2010 at 4:33 AM, Raster3 <crscca@yahoo.co.in> wrote:
>>>>
>>>> Thanks.
>>>> I am just trying to understand.
>>>> If my dead letter queue is just a jms queue and i dont use the camel
>>>> error
>>>> handler does camel give any other value add?
>>>>
>>>
>>> The DL queue in the JMS broker is for *JMS only* where as Camel DL is
>>> for all kind of messages.
>>> For example you can use it for file based messages as well.
>>>
>>> If all you need is JMS then I suggest to stick to what the JMS broker
>>> offers for error handling. You are already familiar with that and how
>>> to use it.
>>> And I assume you have procedures for how to monitor it and handle
>>> those failed messages when something goes wrong.
>>>
>>>
>>>
>>>> R
>>>>
>>>>
>>>>
>>>> willem.jiang wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> First Camel dead letter channel is a generate channel. You can not
>>>>> only
>>>>> store the message into a  dead letter queue, but also any other Camel
>>>>> endpoints(such as sead, direct or file).
>>>>>
>>>>> Second, Camel dead letter channel has some advance features which are
>>>>> inherited from error handler[1], you can user the try... catch and
>>>>> onwhen, onException to deal with different error message.
>>>>>
>>>>> [1]http://camel.apache.org/error-handler.html
>>>>>
>>>>> Willem
>>>>>
>>>>>
>>>>> Raster3 wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I was looking at this
>>>>>> http://camel.apache.org/dead-letter-channel.html
>>>>>> Previously I have worked with JMS dead letter / error queues using
>>>>>> weblogic.
>>>>>>
>>>>>> In Weblogic an error queue is something one configures and associates
>>>>>> with a
>>>>>> queue using the weblogic console or using JMX . Depending on the
>>>>>> configuration after a time period or number of retries the message
is
>>>>>> moved
>>>>>> to the dead letter queue.
>>>>>>
>>>>>> Can you please elaborate on what exactly is the value add of camel
in
>>>>>> this
>>>>>> context.
>>>>>>
>>>>>> R
>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> View this message in context:
>>>> http://old.nabble.com/Dead-Letter-Queue-tp27393562p27399328.html
>>>> Sent from the Camel - Users mailing list archive at Nabble.com.
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Claus Ibsen
>>> Apache Camel Committer
>>>
>>> Author of Camel in Action: http://www.manning.com/ibsen/
>>> Open Source Integration: http://fusesource.com
>>> Blog: http://davsclaus.blogspot.com/
>>> Twitter: http://twitter.com/davsclaus
>>>
>>>
>>
>> --
>> View this message in context:
>> http://old.nabble.com/Dead-Letter-Queue-tp27393562p27401261.html
>> Sent from the Camel - Users mailing list archive at Nabble.com.
>>
>>
> 
> 
> 
> -- 
> Claus Ibsen
> Apache Camel Committer
> 
> Author of Camel in Action: http://www.manning.com/ibsen/
> Open Source Integration: http://fusesource.com
> Blog: http://davsclaus.blogspot.com/
> Twitter: http://twitter.com/davsclaus
> 
> 

-- 
View this message in context: http://old.nabble.com/Dead-Letter-Queue-tp27393562p27402035.html
Sent from the Camel - Users mailing list archive at Nabble.com.


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