TL;DR

Elastisch is a battle tested, small but feature rich and well documented Clojure client for ElasticSearch. It supports virtually every Elastic Search feature and has solid documentation.

1.3.0 is a minor feature and usability release. We recommend all users to upgrade to it.

We recommend all users to upgrade to 1.3.0 as soon as possible.

Changes between Elastisch 1.2.0 and 1.3.0

:sort Option Can Be a SortBuilder

:sort option can now be a com.elasticsearch.search.sort.SortBuilder instance and not just a string.

Contributed by Mark Wong-VanHaren.

ElasticSearch Native Client Upgrade

Elastisch now depends on ElasticSearch native client version 0.90.7.

Bulk Indexing Fix

Elastisch no longer erroneously inserts _index and _type fields into documents inserted via bulk API.

Contributed by Max Barnash.

Result Scrolling as Lazy Sequences

clojurewerkz.elastisch.native.document/scroll-seq and clojurewerkz.elastisch.rest.document/scroll-seq are new functions that accept a search query response and return a lazy sequence of paginated search results.

This makes working with result sets that require pagination much more natural:

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(require '[clojurewerkz.elastisch.native.document :as doc])

(let [index-name   "articles"
      mapping-type "article"
      res-seq      (doc/scroll-seq
                       (doc/search index-name mapping-type
                                   :query (q/term :title "Emptiness")
                                   :search_type "query_then_fetch"
                                   :scroll "1m"
                                   :size 2))]
    res-seq))

Contributed by Max Barnash.

Upserts in Native Client

Native client now supports upserts of documents:

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(require '[clojurewerkz.elastisch.native.document :as doc])

(doc/upsert "people" "person" "elastisch" {:name "Elastisch" :language "Clojure"})

Date Histogram Fix

Date histogram in the native client now includes :total field.

Contributed by Jim Dunn.

Fields in Search Hit Results in Native Client

Native client now returns the same value in :fields and :_fields keys in search hits. This makes it both backwards compatible with earlier versions and the format ElasticSearch HTTP API uses.

Bulk Index and Delete Operations Support More Options

Bulk index and delete operations support _parent and _routing keys.

Contributed by Baptiste Fontaine.

Clojure 1.3 Support Dropped

Elastisch now requires Clojure 1.4.

Cheshire Update

Cheshire dependency has been upgraded to version 5.2.0.

Elastisch change log is available on GitHub.

Thank You, Contributors

Kudos to

• Max Barnash
• Jim Dunn
• Baptiste Fontaine
• Mark Wong-VanHaren

for contributing to this release.

Elastisch is a ClojureWerkz Project

Elastisch is part of the group of libraries known as ClojureWerkz, together with

• Langohr, a Clojure client for RabbitMQ that embraces the AMQP 0.9.1 model
• Monger, a Clojure MongoDB client for a more civilized age
• Cassaforte, a Clojure Cassandra client
• Titanium, a Clojure graph library
• Neocons, a client for the Neo4J REST API
• Welle, a Riak client with batteries included
• Quartzite, a powerful scheduling library

and several others. If you like Elastisch, you may also like our other projects.

Let us know what you think on Twitter or on the Clojure mailing list.

Michael on behalf of the ClojureWerkz Team