Hi,

I try to use the new spout added in the last version (2.1 snapshot) but I am 
not sure to understand the aim of this spout.

As far as I know, a storm topology runs forever but an elasticsearch request 
has a finite number of responses. If we use the storm spout EsSpout in a 
topology, this topology will continue to ask the spout for the next tuple even 
when there will be no more responses from elasticsearch.

So, I am wondering if this spout is useful only for one-shot topology (we push 
the topology with a request, all responses are processed and then we kill the 
topology manually) or if this spout can be used in a storm topology which runs 
forever ?

As I understand the code, this spout should be used for one-shot topology but 
maybe I miss something (and the documentation is not clear about that). I don't 
think we can change the request on the fly or replay it so, when all responses 
are processed, the spout becomes useless. Is that correct ?

Thanks,

Christophe

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