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https://issues.apache.org/jira/browse/FLUME-1491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13457828#comment-13457828
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Christopher Nagy commented on FLUME-1491:
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Hi Danny,
Do you mean that the whole properties string would be stored as a node value in
ZooKeeper? If so, the ZooKeeperConfigurationProvider's reload method could be
changed to read the value and call Properties#load (and remove the
ZooKeeperConfigurationProvider#loadProperties method).
I'm not sure that putting the ZooKeeperConfigurationProvider under
AbstractFileConfigurationProvider is a good idea. The only functionality that
AbstractFileConfigurationProvider provides (in the patch) is monitoring a local
file for changes, while ZooKeeperConfigurationProvider needs to monitor a node
(or nodes).
I guess it also comes down to how you want to specify which configuration
provider to use. In the patch, it would be a new option (and a System property
to specify the connection string). Maybe we could specify the connection string
in the conf parameter (as a uri or something similar) and use a factory to
decide which configuration provider.
> Dynamic configuration from Zookeeper watcher
> --------------------------------------------
>
> Key: FLUME-1491
> URL: https://issues.apache.org/jira/browse/FLUME-1491
> Project: Flume
> Issue Type: Improvement
> Components: Configuration
> Affects Versions: v1.2.0
> Reporter: Denny Ye
> Assignee: Denny Ye
> Labels: Zookeeper
> Fix For: v1.3.0
>
> Attachments: FLUME-1491-2.patch
>
>
> Currently, Flume only support file-level dynamic configuration. Another
> frequent usage in practical environment, we would like to manage
> configuration with Zookeeper, and modify configuration from Web UI to stored
> file in Zookeeper.
> Flume should support this method with Zookeeper watcher.
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