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https://issues.apache.org/jira/browse/STORM-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14993819#comment-14993819
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ASF GitHub Bot commented on STORM-1098:
---------------------------------------
Github user harshach commented on a diff in the pull request:
https://github.com/apache/storm/pull/862#discussion_r44148807
--- Diff: storm-core/src/clj/backtype/storm/daemon/nimbus.clj ---
@@ -124,6 +124,8 @@
:id->sched-status (atom {})
:cred-renewers (AuthUtils/GetCredentialRenewers conf)
:nimbus-autocred-plugins (AuthUtils/getNimbusAutoCredPlugins conf)
+ :nimbus-topology-action-notifier (when-not (clojure.string/blank?
(conf NIMBUS-TOPOLOGY-ACTION-NOTIFIER-PLUGIN))
+ (new-instance (conf
NIMBUS-TOPOLOGY-ACTION-NOTIFIER-PLUGIN)))
--- End diff --
we need call prepare and catch any errors so that we don't bring nimbus
down.
> Storm Nimbus Hook
> -----------------
>
> Key: STORM-1098
> URL: https://issues.apache.org/jira/browse/STORM-1098
> Project: Apache Storm
> Issue Type: New Feature
> Components: storm-core
> Reporter: Sriharsha Chintalapani
> Assignee: Parth Brahmbhatt
>
> Apache Atlas provides governance services and also lineage. It will be great
> if we can capture the topology changes as part of Apache Atlas so that user
> can see how the topology changed over the period of time.
> Storm has ITaskHook but this is for topology components like spout & bolt.
> Similar to ITaskHook we should provide a nimbus hook that will allow
> pluggable implementations to run and can nimbus will execute this on any
> topology operation like upload jar, download, activate, deactivate , kill
> etc..
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