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From Baskar Sikkayan <baskar....@gmail.com>
Subject Re: Apache Ignite - Distibuted Queue and Executors
Date Tue, 31 Jan 2017 14:03:40 GMT
Hi,

ClusterGroup cg = cluster.forOldest();

Is this the way to find the oldest node?

I would like to check if the localNode is the oldest node in the topology to execute my code.

Thanks


> On Jan 31, 2017, at 5:49 AM, Baskar Sikkayan <baskar.sks@gmail.com> wrote:
> 
> Hi,
> 
>  I will be running ignite along with my Spring boot web application. It won’t be a
separate application and hence i can not have a client application.
> 
> But, yes node is oldest topology will work out.
> 
> Let me try.
> 
> 
> 
> 
> 
> 
>> On Jan 31, 2017, at 3:03 AM, Andrey Gura <agura@apache.org> wrote:
>> 
>> HI,
>> 
>> Just don't start all nodes with the same code. For example you can
>> start 3 server nodes and then start client node that will create and
>> fill queue.
>> 
>> Another way, run your code only if your server node is oldest in topology.
>> 
>> On Tue, Jan 31, 2017 at 7:35 AM, udayabaski <baskar.sks@gmail.com> wrote:
>>> I am planning to use Apache Ignite Distributed Queue.
>>> 
>>> I am using Ignite with a spring boot application. So, on bootup, I will be
>>> adding 20 names in a queue. But, since there are 3 servers in a cluster, the
>>> same 20 names gets added 3 times. But, i want to add them only once in the
>>> queue.
>>> 
>>> /Ignite ignite = Ignition.ignite();
>>> 
>>> IgniteQueue<String> queue = ignite.queue(
>>>   "queueName", // Queue name.
>>>   0,          // Queue capacity. 0 for unbounded queue.
>>>   null         // Collection configuration.
>>> );
>>> /
>>> Distributed executors, will be able to poll from the queue and run the task.
>>> Here, the executor is expected to poll, run the task and then add the same
>>> name to the queue. Trying to achieve round robin here. Only one executor
>>> should be running the same task at any point of time, though there are
>>> multiple servers in a cluster.
>>> 
>>> Any suggestion for this.
>>> 
>>> 
>>> 
>>> 
>>> 
>>> --
>>> View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Apache-Ignite-Distibuted-Queue-and-Executors-tp10326.html
>>> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
> 


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