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https://issues.apache.org/jira/browse/CASSANDRA-21816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18133569#comment-18133569
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Bernardo Botella Corbi commented on CASSANDRA-21816:
----------------------------------------------------
CI:
https://app.circleci.com/pipelines/gh/instaclustr/cassandra/6879/details?useNewPipelines=true&workflowId=22ffcad2-3772-4b5a-8726-8ff13b77f986#step-103-
> nodetool profile start rejects a comma-separated list of events
> ---------------------------------------------------------------
>
> Key: CASSANDRA-21816
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21816
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Tool/nodetool
> Reporter: Arvind Kandpal
> Assignee: Arvind Kandpal
> Priority: Normal
> Time Spent: 20m
> Remaining Estimate: 0h
>
> The help for nodetool profile start -e says events are "delimited by comma",
> but a comma-separated list is rejected:
> {noformat}
> $ nodetool profile start -e cpu,alloc -f jfr
> nodetool: Invalid value for option '--event' (<event>): expected one of [cpu,
> alloc, lock, wall, nativemem, cache_misses] (case-sensitive) but was
> 'cpu,alloc'
> {noformat}
> Only the repeated form -e cpu -e alloc works today.
> Cause: the -e/--event option in AsyncProfileCommandGroup is a list without
> split = ",", so picocli tries to convert the whole string "cpu,alloc" into
> one value. The server side already accepts a comma-separated list.
> Fix: add split = "," to the option, so both -e cpu,alloc and -e cpu -e alloc
> work. The default help output is unchanged. A new unit test covers both
> forms. Multiple events still need JFR output (-f jfr), as before.
> Found while working on CASSANDRA-21732.
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