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https://issues.apache.org/jira/browse/CASSANDRA-18555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17732589#comment-17732589
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Jaydeepkumar Chovatia edited comment on CASSANDRA-18555 at 6/14/23 3:35 PM:
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[~smiklosovic] [~brandon.williams]
If you look at the original Pull request, then it does not persist in any state
and provides a JMX endpoint. It has been tested and working in my production
environment for more than a year now without any issues. Please look at this
and let us know your comments: [https://github.com/apache/cassandra/pull/2374]
was (Author: chovatia.jayd...@gmail.com):
[~smiklosovic] [~brandon.williams]
If you look at the original Pull request, then it does exactly what you have
just proposed. It does not persist in any state and provides a JMX endpoint. It
has been tested and working in my production environment for more than a year
now without any issues. Please look at this and let us know your comments:
[https://github.com/apache/cassandra/pull/2374]
> A new nodetool/JMX command that tells whether node's decommission failed or
> not
> -------------------------------------------------------------------------------
>
> Key: CASSANDRA-18555
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18555
> Project: Cassandra
> Issue Type: Task
> Components: Observability/JMX
> Reporter: Jaydeepkumar Chovatia
> Assignee: Stefan Miklosovic
> Priority: Normal
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> Currently, when a node is being decommissioned and if any failure happens,
> then an exception is thrown back to the caller.
> But Cassandra's decommission takes considerable time ranging from minutes to
> hours to days. There are various scenarios in that the caller may need to
> probe the status again:
> * The caller times out
> * It is not possible to keep the caller hanging for such a long time
> And If the caller does not know what happened internally, then it cannot
> retry, etc., leading to other issues.
> So, in this ticket, I am going to add a new nodetool/JMX command that can be
> invoked by the caller anytime, and it will return the correct status.
> It might look like a smaller change, but when we need to operate Cassandra at
> scale in a large-scale fleet, then this becomes a bottleneck and require
> constant operator intervention.
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