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https://issues.apache.org/jira/browse/NIFI-2267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15379322#comment-15379322
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ASF GitHub Bot commented on NIFI-2267:
--------------------------------------
GitHub user ijokarumawak opened a pull request:
https://github.com/apache/nifi/pull/657
NIFI-2267: A way for Processor to know node type
- Added NodeTypeProvider to expose flowController's isClustered and
isPrimaryNode so that processor can know if it's running on a cluster
and if it's a primary node.
- Added mechanism to simulate clustered or not, and primary or not, for
testing
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ijokarumawak/nifi nifi-2267
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/nifi/pull/657.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #657
----
commit 2895159caabc1a28688208268173e6fcadc7d4bf
Author: Koji Kawamura <ijokaruma...@gmail.com>
Date: 2016-07-15T12:16:54Z
NIFI-2267: A way for Processor to know node type
- Added NodeTypeProvider to expose flowController's isClustered and
isPrimaryNode so that processor can know if it's running on a cluster
and if it's a primary node.
- Added mechanism to simulate clustered or not, and primary or not, for
testing
----
> Provide a way for Processor to determine running NiFi node type -
> standalone/clustered, primary/node
> ----------------------------------------------------------------------------------------------------
>
> Key: NIFI-2267
> URL: https://issues.apache.org/jira/browse/NIFI-2267
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 1.0.0
> Reporter: Koji Kawamura
> Assignee: Koji Kawamura
> Fix For: 1.0.0
>
>
> Currently, there's no way for processor to understand if it's running on:
> - Standalone or Cluster?
> - If in a cluster, is it a Primary node or not?
> There're processors that need this information to provide more cluster
> friendly behavior, such as MonitorActivity.
> @OnPrimaryNodeStateChange annotation is already available. However, it's
> notified only when a primary node has been changed. So, If a processor is
> added to an existing NiFi cluster, which has already one node elected as a
> primary node, the processor is not notified, thus it won't be able to know
> it's a primary node.
> This ticket is meant for tracking the effort of adding such capability to
> provide node type information.
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