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https://issues.apache.org/jira/browse/STORM-3066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stig Rohde Døssing resolved STORM-3066.
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Fix Version/s: 2.2.0
Resolution: Fixed
Thanks [~epinto], merged to master
> Storm Flux variable substitution
> --------------------------------
>
> Key: STORM-3066
> URL: https://issues.apache.org/jira/browse/STORM-3066
> Project: Apache Storm
> Issue Type: Improvement
> Reporter: Calvin Chen
> Assignee: Eduardo Pinto
> Priority: Minor
> Labels: newbie, pull-request-available
> Fix For: 2.2.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> we are using flux to submit storm topology, for topology yml file, we need
> substitute variables, from
> [https://github.com/apache/storm/tree/master/flux], it says variable can be
> substituted in format of ${variable.name}, my question is, in my case,
> variable is a list, and I only want to get first element of the list, how can
> I do it?
> I try to use ${variable.0} and ${variable}[0], it doesn't work, after
> substitution, the result is element_name.0 or element_name[0], which is not I
> expected(expected one should be element_name), please let me know how to
> specify the first element of a list in flux.
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