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Calvin Chen updated STORM-3066: ------------------------------- Priority: Critical (was: Major) Description: 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. Summary: Storm Flux variable substitution (was: a question to Storm Flux ) > Storm Flux variable substitution > -------------------------------- > > Key: STORM-3066 > URL: https://issues.apache.org/jira/browse/STORM-3066 > Project: Apache Storm > Issue Type: Bug > Reporter: Calvin Chen > Priority: Critical > > 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. -- This message was sent by Atlassian JIRA (v7.6.3#76005)