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https://issues.apache.org/jira/browse/NIFI-4187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16123189#comment-16123189
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Pierre Villard commented on NIFI-4187:
--------------------------------------
Went through the verification process suggested in the comment before and after
applying the change. Confirmed it's working as expected. Run contrib-check. All
good, merging to master.
> If NiFi process is killed, bootstrap auto-restart hangs on missing sensitive
> key file
> -------------------------------------------------------------------------------------
>
> Key: NIFI-4187
> URL: https://issues.apache.org/jira/browse/NIFI-4187
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.3.0
> Reporter: Andy LoPresto
> Assignee: Andy LoPresto
> Priority: Critical
> Labels: bootstrap, encryption
> Fix For: 1.4.0
>
>
> If the NiFi process is killed and {{autoRestart}} is enabled in the bootstrap
> process ({{RunNiFi.java}}) (enabled by default except when in {{run}} mode)
> and the instance is using encrypted configuration files, the
> {{sensitive.key}} file which contains the master encryption key is no longer
> available when restart occurs. This results in the application exiting.
> To resolve this, the logic to prepare and generate the sensitive key file
> should be extracted to a method and invoked during initial start *and* during
> the auto-restart loop at
> https://github.com/apache/nifi/blob/master/nifi-bootstrap/src/main/java/org/apache/nifi/bootstrap/RunNiFi.java#L1159
> .
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