ElasticSearch-IndexMigrator

Elastic search do not allow to update existing mappings, to overcome this issue, we have automated the steps in this script that elastic search has provided in this post and giving a single click solution.

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• Note: This script is tested on elastic search version 6.8

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Prerequisites

language

• Python 3+

libraries

• requests
• json

Required variables to run script

elasticSearchHost = Your elasticsearch host.

oldIndex = Your old index name.

newIndex = Your new index name.

mappingFilePath = Your correct mapping json that you will use to create new index.

alias = Your alias name that you want to relink from old index to new index.

isRemoveOldIndex = Boolean flag, it will decide after migration whether old index should be deleted or not.