elasticsearch-tools

Current Tools:

• Reindexing
• Drop (Full-Delete of Indexes, Types, etc...)

Reindexing

What is reindexing?

From the Elasticsearch docs ...

While you can add new types to an index, or add new fields to a type, you can’t add new analyzers or make changes to existing fields. If you were to do so, the data that has already been indexed would be incorrect and your searches would no longer work as expected.

The simplest way to apply these changes to your existing data is just to reindex: create a new index with the new settings and copy all of your documents from the old index to the new index.

###Options

Here are the arguments the script takes:

• -h or --help to get the possible options
• -d or --url to set the ElasticSearch Url
• -o or --old-index to set the indexing your reindexing from
• -n or --new-index to set the indexing your reindexing to
• -a or --alias to set the alias

There are defaults for development purposes, but please provide these values.

Drop

What does drop mean in this context?

It simply means ...

• removing all indexes (and associated types)
• clearing the cache against _all
• refreshing _all

###Options

Here are the arguments the script takes:

• -h or --help to get the possible options
• -d or --url to set the ElasticSearch Url

Usage

There are two ways to run these scripts.

• Via an Uberjar

  • Create Uberjars for each of the profiles, e.g. lein with-profile reindex:drop uberjar
  • The Uberjar for each profile will be named uberjar-standalone-<profile-name>, where profile-name would be something like drop or reindex, and located within the target folder, usually under a directory like <profile-name>+uberjar.
    • $ java -jar uberjar-standalone-reindex
    • $ java -jar uberjar-standalone-drop

• Via lein using an alias to a profile. All aliases can be found in project.clj.

  • $ lein reindex -- -d "http://elasticsearch.com:9200" -o "old_index" -n "new_index" -a "elasticsearch_alias"
  • $ lein drop -- -d "http://elasticsearch.com:9200"

Reference

• Elasticsearch - Reindexing Your Data

• Elasticsearch - Reindexing with Zero Downtime

• Elasticsearch - Delete Index

License

Copyright © 2014 Brian Bowman, Zeeshan Lakhani, SFX Entertainment

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.