[rabbitmq-discuss] RabbitMQ Clustering

Wed May 19 13:07:02 BST 2010

Hi Radha,

It looks like the version of erlang running on the two hosts are 
different - can you confirm what version of erlang you are using, and 
whether the problem occurs if the versions match? Does the logfile 
contain any relevant information around the time when you execute these 
commands?

-Emile

Radha Krishnan D wrote:
>  
> 
> Hi,
> 
> Am trying to cluster two rabbitmq servers running on two independent nodes,
> 
>  
> 
> Node 1 terminal
> 
> --------------------
> 
>  
> 
> [root at morungole sbin]# rabbitmqctl status
> 
> ./..
> 
> Status of node rabbit at morungole ...
> 
> [{running_applications,[{rabbit,"RabbitMQ","1.7.2"},
> 
>                         {mnesia,"MNESIA  CXC 138 12","4.4.7"},
> 
>                         {os_mon,"CPO  CXC 138 46","2.1.8"},
> 
>                         {sasl,"SASL  CXC 138 11","2.1.5.4"},
> 
>                         {stdlib,"ERTS  CXC 138 10","1.15.5"},
> 
>                         {kernel,"ERTS  CXC 138 10","2.12.5"}]},
> 
>  {nodes,[rabbit at morungole]},
> 
>  {running_nodes,[rabbit at morungole]}]
> 
> ...done.
> 
>  
> 
>  
> 
> Node 2  terminal
> 
> --------------------------
> 
>  
> 
> [root at mocovir2 sbin]# rabbitmqctl -n MocovirRabbit at mocovir2 status
> 
> Status of node 'MocovirRabbit at mocovir2' ...
> 
> [{running_applications,[{rabbit,"RabbitMQ","1.7.2"},
> 
>                         {mnesia,"MNESIA  CXC 138 12","4.4.12"},
> 
>                         {os_mon,"CPO  CXC 138 46","2.2.4"},
> 
>                         {sasl,"SASL  CXC 138 11","2.1.8"},
> 
>                         {stdlib,"ERTS  CXC 138 10","1.16.4"},
> 
>                         {kernel,"ERTS  CXC 138 10","2.13.4"}]},
> 
>  {nodes,['MocovirRabbit at mocovir2']},
> 
>  {running_nodes,['MocovirRabbit at mocovir2']}]
> 
> ...done.
> 
>  
> 
> [root at mocovir2 sbin]# rabbitmqctl -n MocovirRabbit at mocovir2 
> stop_app      Stopping node 'MocovirRabbit at mocovir2' ...
> 
> ...done.
> 
>  
> 
> [root at mocovir2 sbin]# rabbitmqctl -n MocovirRabbit at mocovir2 
> reset         Resetting node 'MocovirRabbit at mocovir2' ...
> 
> ...done.
> 
>  
> 
> [root at mocovir2 sbin]# rabbitmqctl -n MocovirRabbit at mocovir2 cluster 
> rabbit at morungole
> 
> Clustering node 'MocovirRabbit at mocovir2' with [rabbit at morungole] ...
> 
> ...done.
> 
>  
> 
> [root at mocovir2 sbin]# rabbitmqctl -n MocovirRabbit at mocovir2 start_app
> 
> Starting node 'MocovirRabbit at mocovir2' ...
> 
> ...done.
> 
>  
> 
> [root at mocovir2 sbin]# rabbitmqctl -n MocovirRabbit at mocovir2 status
> 
> Status of node 'MocovirRabbit at mocovir2' ...
> 
> [{running_applications,[{rabbit,"RabbitMQ","1.7.2"},
> 
>                         {mnesia,"MNESIA  CXC 138 12","4.4.12"},
> 
>                         {os_mon,"CPO  CXC 138 46","2.2.4"},
> 
>                         {sasl,"SASL  CXC 138 11","2.1.8"},
> 
>                         {stdlib,"ERTS  CXC 138 10","1.16.4"},
> 
>                         {kernel,"ERTS  CXC 138 10","2.13.4"}]},
> 
>  {nodes,['MocovirRabbit at mocovir2']},
> 
>  {running_nodes,['MocovirRabbit at mocovir2']}]
> 
> ...done.
> 
>  
> 
>  
> 
> Even though it is telling Clustering is done. Both the rabbitmq nodes 
> are not able to recognize each other. 
> 
> Can you please tell me where am going wrong ?\
> 
> The .erlang.cookie  in $HOME was not same at the beginning . Then i 
> copied the .erlang.cookie content from Node 1 (rabbit at morungole) to Node 
> 2 ( MocovirRabbit at mocovir2 )
> 
>  
> 
> **Thanks and Regards,**
> 
> **D.Radhakrishnan**
> Trainee Engineer-Architecture
> 
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