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https://issues.apache.org/jira/browse/NIFI-4221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard reassigned NIFI-4221:
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Assignee: Pierre Villard
> Print app startup in human-readable time
> ----------------------------------------
>
> Key: NIFI-4221
> URL: https://issues.apache.org/jira/browse/NIFI-4221
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 1.3.0
> Reporter: Andy LoPresto
> Assignee: Pierre Villard
> Priority: Minor
> Labels: logs, time
>
> Currently the application startup time is printed in nanoseconds in the app
> log. While this is very precise, because of the scale of these values, it can
> require mental math to detect delays or variance from the standard/average
> timing. I think it would be helpful to print a "human-readable" (i.e. broken
> out into larger units) start time alongside the nanosecond precision time:
> {code}
> 2017-07-24 14:00:14,159 INFO [main] org.apache.nifi.NiFi Controller
> initialization took 15127377569 nanoseconds.
> {code}
> to:
> {code}
> 2017-07-24 14:00:14,159 INFO [main] org.apache.nifi.NiFi Controller
> initialization took 15127377569 nanoseconds (15 seconds).
> {code}
> While currently it's simply a matter of moving the decimal over the right
> number of places, some deployments on cloud systems (especially those with
> low entropy before NIFI-3313 was resolved) could take minutes to deploy.
> Being able to parse these values in meaningful dimensions at a glance is
> helpful.
> Update: This is also the case with NAR unpacking time: {{2017-06-05
> 19:39:50,095 INFO [main] org.apache.nifi.nar.NarUnpacker NAR loading process
> took 11056718205 nanoseconds.}}
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