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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDDS-195) Create generic CommandWatcher utility
Date Thu, 28 Jun 2018 07:03:00 GMT

    [ https://issues.apache.org/jira/browse/HDDS-195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16525999#comment-16525999

Hudson commented on HDDS-195:

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14494 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14494/])
HDDS-195. Create generic CommandWatcher utility. Contributed by Elek, (aengineer: rev 85627e2cba91a61d675d20cdb35e188c6c81e3f2)
* (add) hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/server/events/IdentifiableEventPayload.java
* (add) hadoop-hdds/framework/src/test/java/org/apache/hadoop/hdds/server/events/EventHandlerStub.java
* (add) hadoop-hdds/framework/src/test/java/org/apache/hadoop/hdds/server/events/TestEventWatcher.java
* (add) hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/server/events/EventWatcher.java

> Create generic CommandWatcher utility
> -------------------------------------
>                 Key: HDDS-195
>                 URL: https://issues.apache.org/jira/browse/HDDS-195
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Elek, Marton
>            Assignee: Elek, Marton
>            Priority: Major
>             Fix For: 0.2.1
>         Attachments: HDDS-195.001.patch, HDDS-195.002.patch, HDDS-195.003.patch, HDDS-195.004.patch
> In some cases we need a class which can track the status of the outgoing commands.
> The commands should be resent after a while except a status message is received about
command completion.
> On high level, we need a builder factory, which takes the following parameters:
> * (destination) event type and the payload of the command which should be repeated.
> * the ID of the command/event
> * The event/topic of the completion messages. If an IdentifiableEventPayload is received
on this topic, the specific event is done and don't need to resend it. 

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