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https://issues.apache.org/jira/browse/IGNITE-8376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16528650#comment-16528650
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kcheng.mvp commented on IGNITE-8376:
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I found below entries to active/deactivate cluster.
1: rest api ->
org.apache.ignite.internal.processors.rest.handlers.cluster.GridChangeStateCommandHandle
2: command visitor -> VisorTopologyCommand.scala
3: direct api call -> org.apache.ignite.Ignite
> Add cluster (de)activation events
> ---------------------------------
>
> Key: IGNITE-8376
> URL: https://issues.apache.org/jira/browse/IGNITE-8376
> Project: Ignite
> Issue Type: Improvement
> Reporter: Alexey Goncharuk
> Assignee: kcheng.mvp
> Priority: Major
> Labels: newbie
> Fix For: 2.7
>
>
> Currently, we do not have any way to detect that a cluster got activated,
> which results in busy-loops polling {{cluster().active()}}.
> I suggest to add new events, {{EVT_CLUSTER_ACTIVATED}},
> {{EVT_CLUSTER_DEACTIVATED}}, {{EVT_CLUSTER_ACTIVATION_FAILED}} which will be
> fired when corresponding steps are completed. The event should contain, if
> possible, information about the activation source (public API or
> auto-activation), topology version on which activation was performed. The
> fail event should contain information about the cause of the failure. If
> needed, a new class for this event should be introduced.
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