I have a field that I discovered has been recording values as both uppercase and lowercase. This is causing issues in Kibana data tables as they see Example as being different from example. I've corrected the issue in Logstash to mutate the field value but I need to reindex all the existing data to have it display properly. How can I go about bulk reindexing these indices?
The Reindex API sounds like the right tool for this job.
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