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From Jean-Baptiste Onofré (JIRA) <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8574) Enable starting hadoop services from inside OSGi
Date Fri, 06 Jul 2012 19:55:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408260#comment-13408260

Jean-Baptiste Onofré commented on HADOOP-8574:

Yep, I take the OSGi metadata and merge back the Karaf feature descriptor. It will be done
over the week end.
> Enable starting hadoop services from inside OSGi
> ------------------------------------------------
>                 Key: HADOOP-8574
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8574
>             Project: Hadoop Common
>          Issue Type: New Feature
>            Reporter: Guillaume Nodet
> This JIRA captures the needed things in order to start hadoop services in OSGi.
> The main idea I used so far consists in:
>   * using the OSGi ConfigAdmin to store the hadoop configuration
>   * in that configuration, use a few boolean properties to determine which services should
be started (nameNode, dataNode ...)
>   * expose a configured url handler so that the whole OSGi runtime can use urls in hdfs:/xxx
>   * the use of an OSGi ManagedService means that when the configuration changes, the
services will be stopped and restarted with the new configuration

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