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https://issues.apache.org/jira/browse/NIFI-11380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt Burgess updated NIFI-11380:
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Status: Patch Available (was: In Progress)
> Refactor CaptureChangeMySQL with improvements
> ---------------------------------------------
>
> Key: NIFI-11380
> URL: https://issues.apache.org/jira/browse/NIFI-11380
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Matt Burgess
> Assignee: Matt Burgess
> Priority: Major
> Fix For: 1.latest, 2.latest
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The CaptureChangeMySQL processor can be improved in many ways:
> - Eliminate use of DistributedCacheClient
> - MySQLCDCUtils - delete this class. It’s unnecessary. Just put the single
> method that exists in the parent class of the writers
> - Eliminate mutable member variables. Gather all state together into an
> object and store that as a single volatile member variable.
> - The outputEvents method is a huge block of switch/case and if/then/else
> blocks. Kill all of this. Create an interface that’s capable of handling a
> given event type and have multiple implementations. Determine appropriate
> impl and call the method.
> - Do not keep a bunch of member variables to “rollback local state”. Keep
> this in variables. If we fail, no harm, no foul. If we succeed, then update
> member variable.
> - Remove onStopped method, just annotate stop() method with @OnStopped. No
> need for @OnShutdown
> - Change name of “hostname” property to "node", and don’t require the port!
> Default to 3306.
> - Remove unused hasRun member variable
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