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https://issues.apache.org/jira/browse/NIFI-14575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Samkit Jain Ksolves Nifi Expertise reassigned NIFI-14575:
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Assignee: Samkit Jain Ksolves Nifi Expertise
> awk in prop_add_or_replace in common.sh missing target file, causes script to
> hang
> ----------------------------------------------------------------------------------
>
> Key: NIFI-14575
> URL: https://issues.apache.org/jira/browse/NIFI-14575
> Project: Apache NiFi
> Issue Type: Bug
> Components: Configuration
> Reporter: jason
> Assignee: Samkit Jain Ksolves Nifi Expertise
> Priority: Minor
>
> In NiFi's {{{}start.sh{}}}, the {{prop_add_or_replace}} function uses {{awk}}
> to check if a property exists, but does not specify a target file. When the
> property is not found, {{awk}} waits for stdin, causing the script to hang.
> *Steps to Reproduce：*
> 1. Pick a property key that does *not exist* in your {{nifi.bootstrap.conf}}
> file, such as:
> export CUSTOM_JAVA_OPT="-Dcustom.option.enabled=true"
>
> 2. Add the following line to the end of start.sh or run it manually for
> testing:
> prop_add_or_replace 'java.arg.20' "${CUSTOM_JAVA_OPT}" ${nifi_bootstrap_file}
>
>
> 3. Execute {{{}start.sh{}}}.
> 4. The script will hang at this line because {{awk}} in
> {{prop_add_or_replace}} does not specify a target file, and the property
> {{java.arg.20}} does not exist yet.
> h3. *Suggested Fix:*
> Update the {{awk}} command to include the {{{}$target_file{}}}, like so:
> property_found=$(awk -v property="${1}" 'index($0, property) == 1'
> "$target_file")
>
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