Thanks. The code I'm developing will support both Node and Transport
clients. The selection will be configuration driven.
There must be a way to determine if a CRUD operation succeeded. For
example, see the following code taken from the Logstash Ruby client based
plugin. Is there any Java client equivalent?
def template_exists?(name)
@client.indices.get_template(:name => name)
return true
rescue Elasticsearch::Transport::Transport::Errors::NotFound
return false
end # def template_exists?
In addition, for transport client do you recommend checking
client.connectedNodes().size() > 0 ?
On Thursday, June 5, 2014 3:44:25 PM UTC+3, Jörg Prante wrote:
>
> Do you use TransportClient or NodeClient?
>
> On NodeClient, you are tied to the cluster, as the node is being a part of
> it, on TransportClient, you can count the connected nodes.
>
> The discovery mechanism behind the scenes sends "ping" actions each few
> seconds for you. If an action fails, you will see exceptions there. No need
> to ask explicitly the cluster for a state or something (your code also just
> asks for the local state copy which has nothing to do with testing
> connections)
>
> Jörg
>
>
> On Thu, Jun 5, 2014 at 1:29 PM, Nir Dothan <[email protected]
> <javascript:>> wrote:
>
>> I'm not sure how to handle errors when using the java client. How do I
>> grammatically know if my connection was successful, or if indexing of a
>> document succeeded?
>> In Rest we have the http result code, but in java, I did not see a
>> documented way to catch checked exceptions or anything like that.
>> For connection assurance I use:
>> return 0< client.admin().cluster().prepareState().get().getState().
>> getVersion();
>> Is that correct? is it effective?
>> Can anyone please refer my to any documentation or relevant source code?
>>
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