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News/Toolforge Elasticsearch v7 migration
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What is changing?
  • New Elasticsearch cluster version (v7.4)
  • New client connection URL: http://elasticsearch.svc.tools.eqiad1.wikimedia.cloud
  • Improved service availability and scaling capabilities
Timeline
  • 2020-03-04: Version 7 Elasticsearch cluster general availability for migration on an opt-in basis.
  • 2020-04-06: deadline Evaluate if all tools have been migrated to the new Elasticsearch cluster.
  • 2020-04-20: shutdown All tools are fully migrated to the new Elasticsearch cluster, version 5 cluster is retired from service.
What should I do?
Update client connection strings
A new service address (​http://elasticsearch.svc.tools.eqiad1.wikimedia.cloud​) has been configured for the Elasticsearch V7 cluster. This service address is configured to provide high availability and load-balancing features across all Elasticsearch V7 cluster members.
Update your Tools support Elasticsearch version 7 APIs
Deprecated index document types
The ability to specify a custom document type has been deprecated in Elasticsearch version 7. A full list of mapping changes can be found at https://www.elastic.co/guide/en/elasticsearch/reference/7.x/breaking-changes-7.0.html#breaking_70_mappings_changes
Deprecated version 5 example with a custom document type:
curl -X PUT 'http://<elasticsearch>/index_name' -d '{ "mappings": { "custom_type": { "properties": { "foo": { "type": "keyword" } }, } } }'
Supported version 7 example:
curl -X PUT 'http://<elasticsearch>/index_name' -d '{ "mappings": { "doc": { "properties": { "foo": { "type": "keyword" }, }, } } }'
This mapping change also effects the path to your index documents.
Example index document paths
Deprecated version 5
PUT <index>/<custom type>/<id>
version 7
PUT <index>/_doc/<id>
See also
Last edited on 11 April 2020, at 23:41
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