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@gosquared/es-migrate

v1.1.4

Published

Tool to migrate documents from one cluster to another.

Downloads

11

Vulnerabilities

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  • 0Low

Links

Maintainers

jtjtgosquared-admingosquared-adminthedeveloperthedeveloper

Keywords

elasticsearchmigrateesreindextransformmovedatadocumentsindexesindicesclusteramazonelastic

Readme

Tool to help set up and run elasticsearch migrations.

Install

npm i -g @gosquared/es-migrate

Usage

Create a new migration project:

es-migrate init es-migrate-1

Change to project directory. See readme for further instructions.

cd es-migrate-1
cat README.md

Rationale

We were finally upgrading our 2.3 cluster to 7.x. Due to breaking changes, some mappings needed to be changed and documents reindexed. It is easier to migrate direct from 2.x to 7.x than stepping through 5.x and 6.x, although not 'easy' to do either!

Breaking changes that affected us:

  • "_type" field deprecated / no longer supported.

The Elasticsearch Reindex API is useful but has limited transform options.

Since we work in Javascript we found it easiest to write our transforms in JS.

Why direct was preferable

If we were to upgrade via 5.x and 6.x, we would need to make our services compatible with each version. Also, each node in the cluster would need to be cycled, involving manual patching and restarting the node - a labour intensive process.

Ignore linting

git config blame.ignoreRevsFile .ignore-revs

https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/installation.html#js-compatibility-matrix

https://opensearch.org/docs/clients/index/