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https://issues.apache.org/jira/browse/CASSANDRA-18555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17729592#comment-17729592
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Maxwell Guo edited comment on CASSANDRA-18555 at 6/6/23 5:37 AM:
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Hi [[email protected]] I have left some comments on your pr , can you
take a look at them ? And I think we need some CI .
Besides, I suggest changing the status of the output from a simple boolean
value to some status value string, such as: INIT, PROCESSING, FAILED,SUCCESS.
The states that can be expressed may be a little more than simple Boolean, and
it is more general.
[~Bereng]WDYT?
was (Author: maxwellguo):
Hi [[email protected]] I have left some comments on your pr , can you
take a look at them ? And I think we need some CI .
Besides, I suggest changing the status of the output from a simple boolean
value to some status value string, such as: INIT, PROCESSING, FAILED,SUCCESS.
The states that can be expressed may be a little more than simple Boolean, and
it is more general.
> 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: Jaydeepkumar Chovatia
> Priority: Normal
>
> 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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