This plugin will help you to check whether you can upgrade directly to the next major version of Elasticsearch, or whether you need to make changes to your data and cluster before doing so.
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Severity of transform mapping removal should be increased #87
It seems like https://github.com/elastic/elasticsearch-migration/blob/2.x/src/migration/Mapping.js#L95 should have severity
red
instead ofyellow
, as thetransform
mapping has been removed in5.0
(it was deprecated in2.0
).Elasticsearch
5.0.0
is not able to recover an index that uses this feature, and will log an exception and exit.