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From Qian Su <...@linkedin.com>
Subject Re: retry without using Failover Transport
Date Tue, 11 Mar 2008 05:24:04 GMT

Hi,

Yes indeed, the initialReconnectDelay doesn't seem to have effect at all,
the producer is reconnecting immediately regardless of the value specified. 
Do you happen to know why?

Thanks,
Qian
 

Adrian Co wrote:
> 
> Hi,
> 
> The initialReconnectDelay is the delay for the first attempt only. Is it 
> reconnecting immediately on the first try?
> 
> Use the maxReconnectDelay to specify the delay for succeeding attempts.
> http://activemq.apache.org/failover-transport-reference.html
> 
> Regards,
> Adrian Co
> 
> Qian Su wrote:
>> Hi,
>>
>> Thanks for the reply. I do see retry attempts from FailoverTransport in
>> the
>> stacktrace now, however the initialReconnectDelay param doesn't seem to
>> have
>> effect.
>>
>> I applied the following producer URL to broker and it seems that the 2
>> retries are attempted immediately.
>>  
>> failover://(tcp://localhost:61616)?maxReconnectAttempts=2&amp;initialReconnectDelay=10000
>>
>> Is this the correct way to set initial reconnect delay?
>> Thanks,
>> Qian
>>
>> On 29/02/2008, Qian Su <qsu@linkedin.com> wrote:
>>   
>>>  Hi,
>>>
>>>  We are using Activemq version 4.1.1, tcp transport and we'd like the
>>>  producer to retry at least once in case of connection timeout to a
>>> broker.
>>>  The brokers are configured behind a load balancer.
>>>
>>>  Does Activemq support retries on the producer end?
>>>     
>>
>> Yes -using failover transport
>>
>>   
>>>  I am aware of the FailoverTransport and knows it provides configuration
>>> for
>>>  maxReconnectAttempts, initialReconnectDelay, etc, but am not sure if
>>> this
>>> is
>>>  the best approach or if it is applicable for our situation since the
>>> load
>>>  balancer is the only one point of entry to talk to a broker in our
>>> case.
>>>     
>>
>> It is. You can define how many times you want the client to attempt to
>> reconnect - irrespective of how host names are mapped to physical real
>> IP addresses.
>>
>> e.g. use failover with a single logical hostname/IP adress.
>>
>>
>>   
>>>  Is it correct to configure a producer connection URL to the load
>>> balancer
>>>  something like this:
>>>
>>>
>>> failover://(tcp://host:61616)?maxReconnectAttempts=1&initialReconnectDelay=200
>>>
>>>  By the way, I tried the above URL and id doesn't seem to work.
>>>     
>>
>>
>> Does increasing the maxReconnectAttempts help?
>>
>>   
> 
> 
> 

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