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From "Valentin Kulichenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-534) Implement IgniteJmsStreamer to stream data from a JMS broker like ActiveMQ
Date Thu, 13 Aug 2015 01:36:45 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14694530#comment-14694530
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Valentin Kulichenko commented on IGNITE-534:
--------------------------------------------

I also have couple of comments not regarding code guidelines:
# I'm not sure why we need {{setBatched()}} configuration property. In my understanding, we
can just have default batch size of {{1}} which automatically means disabled batching. If
user sets to any value greater than {{1}}, batching is enabled. BTW, we have pretty similar
configuration API in {{ContinuousQuery}}, you can take a look to see what I mean.
# The same goes for {{setTransacted()}}. It looks like it's always enabled together with batching.
And if I understand correctly, if there is no batching, setting transacted to {{true}} does
not change anything. This makes me feel that there is no reason for two separate properties.
Correct me if I'm wrong.

> Implement IgniteJmsStreamer to stream data from a JMS broker like ActiveMQ
> --------------------------------------------------------------------------
>
>                 Key: IGNITE-534
>                 URL: https://issues.apache.org/jira/browse/IGNITE-534
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: streaming
>            Reporter: Dmitriy Setrakyan
>            Assignee: Valentin Kulichenko
>
> We have {{IgniteDataStreamer}} which is used to load data into Ignite under high load.
It was previously named {{IgniteDataLoader}}, see ticket IGNITE-394.
> We should create {{IgniteJmsStreamer}} which will consume messages from a given queue
or topic of a JMS broker and stream them into Ignite caches.
> Even though we'll use AMQ for testing, this streamer should be implementation-agnostic
and only use JMS constructs where possible.
> See [Apache ActiveMQ|http://activemq.apache.org/] for more information.
> More details to follow, but to the least we should be able to:
> * Convert a JMS message to Ignite data using an optional pluggable converter. If not
provided, we should have some default mechanism.
> * Specify the cache name for the Ignite cache to load data into.
> * Specify other flags available on {{IgniteDataStreamer}} class.



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