Elasticsearch Update Mapping And Reindex. In order to provide the super duper fast search Elasticsearch runs analyzers and processes documents on write making writes more expensive than reads. One of the drawbacks of ElasticSearch is the lack of mapping updates to existing fields.
Updating Multiple Documents In Elasticsearch Simultaneously Using Update By Query Qbox Hes from qbox.io
If we require updating an existing document we need to reindex or replace it. Working with mappings in real life is not always an easy task especially if you want to keep capturing data into Elasticsearch while you are busy changing the mapping. Just leaving out version_type as above or setting it to internal will cause Elasticsearch to blindly dump documents into the target overwriting any.
Curl -X PUT httplocalhost9200thegameweapons_mappingignore_conflictstrue -d weapons.
Elasticsearch 23 was released with a new Reindex API which I am going to cover here in this post. I dont want it to automatically reindex all the documents for me. During the reindexing process the console displays something to this. Check that the index is not the active write index CmdCreate a re-index target index.
