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https://github.com/mincong-h/learning-elasticsearch

Elasticsearch Demos
https://github.com/mincong-h/learning-elasticsearch

demo demos docker elasticsearch elasticsearch7 java java-11 learning learning-by-doing maven testing

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Elasticsearch Demos

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README 

        
# Learning Elasticsearch [![Build Status][actions-img]][actions]



Elasticsearch is a distributed, RESTful search and analytics engine capable of

addressing a growing number of use cases. As the heart of the Elastic Stack,

it centrally stores your data so you can discover the expected and uncover the

unexpected.



## Quickstart



The fastest way to test any basic Elasticsearch feature is to start a Docker image with the desired Elasticsearch version:



```sh

docker run \

  --rm \

  -e discovery.type=single-node \

  -p 9200:9200 \

  docker.elastic.co/elasticsearch/elasticsearch:7.12.0

```



## Articles



Articles wrote using code of this repository and other related repositories:



- [Testing Elasticsearch With Docker And Java High Level REST Client](https://mincong.io/2020/04/05/testing-elasticsearch-with-docker-and-java-client/)

- [Testing Elasticsearch with ESSingleNodeTestCase](https://mincong.io/2019/11/24/essinglenodetestcase/)

- [Elasticsearch: cat nodes API](https://mincong.io/2020/03/07/elasticsearch-cat-nodes-api/)

- [Elasticsearch: Scroll API in Java](https://mincong.io/2020/01/19/elasticsearch-scroll-api/)

- [Indexing New Data in Elasticsearch](https://mincong.io/2019/12/02/indexing-new-data-in-elasticsearch/)

- [Common Index Exceptions](https://mincong.io/2020/09/13/es-index-exceptions/)

- [Wrap Elasticsearch Response Into CompletableFuture](https://mincong.io/2020/07/26/es-client-completablefuture/)

- [Discovery in Elasticsearch](https://mincong.io/2020/08/22/discovery-in-elasticsearch/)

- [GC in Elasticsearch](https://mincong.io/2020/08/30/gc-in-elasticsearch/)

- [18 Allocation Deciders in Elasticsearch](https://mincong.io/2020/09/27/shard-allocation/)

- [Using Java Time in Different Frameworks](https://mincong.io/2020/10/25/java-time/)

- [DVF: Indexing New Documents](https://mincong.io/2020/12/16/dvf-indexing/)

- [DVF: Indexing Optimization](https://mincong.io/2020/12/17/dvf-indexing-optimization/)

- [DVF: Storage Optimization](https://mincong.io/2020/12/25/dvf-storage-optimization/)

- [DVF: Snapshot And Restore](https://mincong.io/2021/01/10/dvf-snapshot-and-restore/)

- [DVF: Aggregations](https://mincong.io/2021/04/12/dvf-aggregations/)

- [DVF: Real Estate Analysis For Île-de-France in 2020](https://mincong.io/2021/04/16/dvf-real-estate-analysis-idf-2020/)

- [Disk Watermarks In Elasticsearch](https://mincong.io/2021/04/10/disk-watermarks-in-elasticsearch/)

- [Elasticsearch: Generate Configuration With Python Jinja 2](https://mincong.io/2021/04/11/elasticsearch-generate-configuration-with-python-jinja2/)

- [Fix Corrupted Index in Elasticsearch](https://mincong.io/en/elasticsearch-corrupted-index/) / [修复 Elasticsearch 中损坏的索引](https://mincong.io/cn/elasticsearch-corrupted-index/)

- [【翻译】Netflix 资产管理平台 (AMP) 中的 Elasticsearch 索引策略](https://mincong.io/cn/elasticsearch-indexing-strategy-in-asset-management-platform-amp/)

- [How to prevent data loss in Elasticsearch?](https://mincong.io/en/prevent-data-loss-in-elasticsearch/) / [如何防止 Elasticsearch 中的数据丢失？](https://mincong.io/cn/prevent-data-loss-in-elasticsearch/)

- [Elasticsearch Settings](https://mincong.io/en/elasticsearch-settings/) / [一文了解 Elasticsearch 设置](https://mincong.io/cn/elasticsearch-settings/)

- [Internal Structure Of Snapshot Repository](https://mincong.io/en/elasticsearch-snapshot-repository-structure/) / [Elasticsearch 快照仓库的内部结构](https://mincong.io/cn/elasticsearch-snapshot-repository-structure/)

- [Elasticsearch Snapshot Plugins](https://mincong.io/en/elasticsearch-snapshot-plugins/) / [Elasticsearch 的快照插件](https://mincong.io/cn/elasticsearch-snapshot-plugins/)

- [Slow Query Logs In Elasticsearch](https://mincong.io/en/slow-logs-in-elasticsearch/)

- [The Decision System For Shard Allocation in Elasticsearch](https://mincong.io/en/shard-allocation-deciders/)

- [Internal Structure Of Elasticsearch Java High-Level REST Client](https://mincong.io/en/elasticsearch-hlrc/)



## Resources



Not related to this repository, but interesting resources to read about Elasticsearch.



Elasticsearch documentation:



- [Java High Level REST Client](https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-high.html)

- [Java Testing Framework](https://www.elastic.co/guide/en/elasticsearch/reference/current/testing-framework.html)

- [REST APIs](https://www.elastic.co/guide/en/elasticsearch/reference/current/rest-apis.html)



Certifications:



- [Elastic Certified Engineer](https://www.elastic.co/training/elastic-certified-engineer-exam)

- ^ Article [ElasticSearch Engineer Exam v7.13 (2021)](https://kapuablog.wordpress.com/2021/10/15/elasticsearch-engineer-exam-v7-13-2021/) and Github project [Elastic Certified Engineer exam notes](https://github.com/mohclips/Elastic-Certified-Engineer-Exam-Notes) by [Nicholas Cross](https://github.com/mohclips)



Books:



- Radu Gheorghe, Matthew Lee hinman, Roy Russo, "Elasticsearch in Action", Manning, 2016.

- Clinton Gormley and Zachary Tong, "Elasticsearch: The Definitive Guide", O'Reilly Media, 2014 - 2015.


  



GitHub:



- Awesome Search


  https://github.com/frutik/awesome-search

- 互联网 Java 工程师进阶知识完全扫盲 / Elasticsearch


  https://github.com/doocs/advanced-java



Blogs:



- Code 972, A blog about BigData, Cloud and Search technologies by Itamar Syn-Hershko 

- 铭毅天下, Elasticsearch Expert, 

- 少强, Alicloud, 

- 木洛, Alicloud, 



Articles:



- Michael McCandless, "Visualizing Lucene's segment merges", 2011.


  

- Nico Tonozzi and Dumitru Daniliuc, "Reducing search indexing latency to one second", _Twitter_, 2020.


  

- Prabin Meitei M, "Garbage Collection in Elasticsearch and the G1GC", _Medium_, 2018.


  



Forums:



- Elastic 中文社区 https://elasticsearch.cn/



## Development



Upgrade Elasticsearch version, e.g 7.8.0 -> 7.10.0:



```sh

> scripts/upgrade-es-version.sh 7.8.0 7.10.0

✅ pom.xml

✅ cluster/src/test/resources/docker-compose.yml

✅ README.md

Finished.

```



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