Difference between revisions of "Elasticsearch"

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[[Elasticsearch]] is a web based search engine released in 2010 that provides a distributed, multitenant-capable full-text search engine and schema-free JSON documents based on the [[Lucene]] library.  
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[[wikipedia:Elasticsearch]] is a web based [[search engine]] written in [[Java]] and released in [[2010]] that provides a distributed, multitenant-capable full-text search engine and schema-free [[JSON]] documents based on the [[Lucene]] library.  
 
You can use many differents tools to send logs to Elasticsearch, including [[Filebeat]] product from ElasticSearch developers.
 
You can use many differents tools to send logs to Elasticsearch, including [[Filebeat]] product from ElasticSearch developers.
 
Elastisearch offer different software for sending data such as: Filebeat, [[Metricbeat]]<ref>https://www.elastic.co/products/beats/metricbeat</ref>, Packetbeat, Winlogbeat, Auditbeat, Heartbeat and
 
Elastisearch offer different software for sending data such as: Filebeat, [[Metricbeat]]<ref>https://www.elastic.co/products/beats/metricbeat</ref>, Packetbeat, Winlogbeat, Auditbeat, Heartbeat and
 
Functionbeat
 
Functionbeat
  
ElastaticSearch is also available as a docker image<ref>https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html</ref> or as service in [[AWS]] ([[AWS Elasticsearch]]) since November 2015.<ref>https://aws.amazon.com/blogs/aws/new-amazon-elasticsearch-service/
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ElastaticSearch is also available as a [[docker]] image<ref>https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html</ref> or as service in [[AWS]] ([[AWS Elasticsearch]]) since November 2015.<ref>https://aws.amazon.com/blogs/aws/new-amazon-elasticsearch-service/
 
</ref>
 
</ref>
  
== Installation ==
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* [https://trends.google.com/trends/explore?date=all&q=Elasticsearch Google Trends], [https://trends.google.com/trends/explore?date=all&q=Elasticsearch,OpenSearch OpenSearch]
* ElasticSearch Docker installation: https://www.docker.elastic.co/: [[Install ElasticSearch using Docker]]
+
 
* Configuration: <code>/usr/share/elasticsearch/config/[[elasticsearch.yml]]</code> <ref>https://www.elastic.co/guide/en/elasticsearch/reference/current/settings.html</ref>
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* [[Elasticsearch installation]]
 +
* [[Elasticsearch command line tools|Command line tools]]
 +
* [[Elastic Licensing]]<ref>https://www.elastic.co/pricing/</ref>: [[Elastic Licensing|Gold]], Platinium, Enterprise
  
 
== Activities ==
 
== Activities ==
# Read [[ElasticSearch release notes]]: https://github.com/elastic/elasticsearch/releases
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* Read [[ElasticSearch release notes]]/versions: https://github.com/elastic/elasticsearch/releases
# [[Install ElasticSearch using Docker]]: https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html
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* [[Elasticsearch curl URLs]]: <code>[[/_cat/]], [[/_cluster/]], [[/_xpack/]]</code>
 +
* [[ELK backup and restore]]
 +
 
 +
* Review [[Elasticsearch logs]]
 +
 
 +
* Read most voted Elasticsearch queries in [[Stackoverflow]] https://stackoverflow.com/questions/tagged/elasticsearch?tab=Votes
 +
 
 +
* [[Install ElasticSearch using Docker]] and [[Kibana]]: https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html
 
::<code>/usr/share/elasticsearch/config/[[elasticsearch.yml]]</code>
 
::<code>/usr/share/elasticsearch/config/[[elasticsearch.yml]]</code>
::To connect: <code>http://localhost:9200/</code>
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:: [[Connect to Elasticsearch]]:
# [[Install Elasticsearch-hq management GUIs for Elasticsearch]]
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::: <code>http://localhost:9200/</code>
 +
:::  <code>https://localhost:9200/</code>
  
 +
* Read Elasticsearch data migration: https://engineering.empathy.co/elasticsearch-data-migration-within-k8s/
  
== Users ==<!-- New links in alphabetical order please -->
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== Managed services ==
Notable users of Elasticsearch<ref name="users">{{cite web|url=http://www.elasticsearch.org/case-studies/ |title=Elasticsearch.org Case Studies |publisher=Elasticsearch.org |date= |accessdate=2014-10-03}}</ref> include:
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Several organizations offer Elasticsearch as a managed service, including [[Amazon Web Services]] Elasticsearch Service (since October 2015<ref>{{cite web|url=https://aws.amazon.com/blogs/aws/new-amazon-elasticsearch-service/|title=New – Amazon Elasticsearch Service - Amazon Web Services|date=1 October 2015|website=amazon.com}}</ref>),<ref>{{Cite web|url=https://aws.amazon.com/elasticsearch-service/|title=Amazon Elasticsearch Service|website=Amazon.com|access-date=2016-10-16}}</ref> Bonsai,<ref>{{Cite web|url=https://bonsai.io/|title=Elasticsearch on AWS|website=bonsai.io|access-date=2016-10-16}}</ref> Scalefastr,<ref>{{Cite web|url=https://www.scalefastr.io/|title=Managed Elasticsearch on Bare Metal|website=scalefastr.io|access-date=2017-11-30}}</ref> [[Elastic Cloud]],<ref>{{Cite web|url=https://www.elastic.co/cloud|title=Hosted Elasticsearch & Kibana on AWS|last=|first=|date=|website=elastic.co|publisher=|access-date=2016-10-16}}</ref> Qbox,<ref>{{Cite web|url=https://qbox.io/hosted-elasticsearch|title=Hosted Elasticsearch|website=qbox.io|access-date=2016-10-16}}</ref> Searchly,<ref>{{Cite web|url=http://www.searchly.com/|title=Simple Elasticsearch Hosting|website=searchly.com|access-date=2016-10-16}}</ref> IBM,<ref>{{Cite web|url=https://console.ng.bluemix.net/catalog/services/compose-for-elasticsearch/|title=Elasticsearch on IBM Cloud|website=www.bluemix.net|access-date=2017-01-25}}</ref> Measured Search,<ref>{{Cite web|url=https://www.measuredsearch.com/cloud-search-service/elasticsearch/|title=Hosted Elasticsearch Service AWS Microsoft Azure Google Cloud {{!}} Measured Search|website=www.measuredsearch.com|language=en|access-date=2017-05-26}}</ref> [[Logz.io]],<ref>{{Cite web|url=https://logz.io|title=ELK as a Service and AI-powered Log Analytics|website=logz.io|access-date=2017-09-04}}</ref> [[IBM Bluemix]] Elasticsearch Service,<ref>{{Cite web|url=https://console.bluemix.net/catalog/services/compose-for-elasticsearch/|title=Compose for Elasticsearch - IBM Bluemix|website=console.bluemix.net|access-date=2017-09-14}}</ref> and [https://www.objectrocket.com/elasticsearch/ Object Rocket].<ref>{{Cite web|url=https://www.objectrocket.com/elasticsearch/|title=Hosted Elasticsearch with Kibana {{!}} ObjectRocket|website=ObjectRocket|access-date=2017-12-29}}</ref> Such managed services provide hosting, deployment, backup and other support as a package, reducing the skills and time needed to implement and operate Elasticsearch.<ref>{{Cite web|url=https://ctovision.com/aws-elasticsearch-setup/|title=Elasticsearch Setup|website=ctovision.com|access-date=2016-10-16}}</ref> Most managed services also include support for [[Kibana]].
{{Div col|colwidth=22em}}
 
*[[Adobe Systems]]<ref>{{Cite web|url=https://www.elastic.co/elasticon/conf/2016/sf/adding-context-to-queries-the-adobe-api-and-ui-stories|title=Adding Context to Queries: The Story Behind Adobe’s API and UI|website=www.elastic.co|access-date=2016-09-03}}</ref>
 
*[[Amadeus IT Group]]
 
*[[Archive of Our Own]]<ref>{{cite news |url=https://archiveofourown.org/admin_posts/1269?add_comment=true |quote=We use a software package called Elasticsearch for most of our search and filtering needs. |title=Release 0.9.20: Improvements to our search index code! |date=September 9, 2014 |access-date=February 27, 2018 |publisher=[[Archive of Our Own]]}}</ref>
 
*[[athenahealth]] 
 
*[[AXS (ticket merchant)|AXS]]
 
*[[Center for Open Science]]<ref>{{Cite web|url = http://www.elasticsearch.org/case-study/center-for-open-science/|title = Center for Open Science|date = |accessdate = |website = |publisher = |last = |first = }}</ref>
 
*[[Cern|CERN]]<ref name="CERN">{{cite web|url=https://medium.com/@ghoranyi/needle-in-a-haystack-873c97a99983 |title=Needle in a haystack - Using Elasticsearch to run the Large Hadron Collider of CERN |publisher=medium.com}}</ref>
 
*[[Discord (software)|Discord]]<ref>{{cite web|url = https://blog.discordapp.com/how-discord-indexes-billions-of-messages-e3d5e9be866f |title=How Discord Indexes Billions of Messages |accessdate=2018-01-27 |publisher=blog.discordapp.com }}</ref>
 
*[[Etsy]]<ref name="etsy">{{cite web|url=https://github.com/etsy/oculus#installation-overview |title=Oculus: The metric correlation component of Etsy's Kale system |publisher=Github.com |date= |accessdate=2014-02-04}}</ref>
 
*[[EVS Broadcast Equipment|EVS]]
 
*[[Facebook]]<ref>{{Cite web|url=https://www.elastic.co/elasticon/2015/sf/from-hackathon-to-production-elasticsearch-facebook|title=From Hackathon to Production: Elasticsearch @ Facebook|website=www.elastic.co|access-date=2016-05-24}}</ref>
 
*[[Food and Drug Administration|FDA]]<ref name="FDA">{{cite web|url=http://open.fda.gov/api/reference/ |title=openFDA - About the API |publisher=FDA.gov}}</ref>
 
*[[Foursquare]]<ref name="foursquare">{{cite web|url=http://engineering.foursquare.com/2012/08/09/foursquare-now-uses-elastic-search-and-on-a-related-note-slashem-also-works-with-elastic-search/ |title=foursquare now uses Elastic Search (and on a related note: Slashem also works with Elastic Search)! &#124; Foursquare Engineering Blog |publisher=Engineering.foursquare.com |date= |accessdate=2014-02-21}}</ref>
 
*[[GitHub]]<ref name="github">{{cite web|url=https://github.com/blog/1381-a-whole-new-code-search |title=A Whole New Code Search |publisher=Github.com |date=2013-01-23 |accessdate=2014-02-21}}</ref>
 
*[[JustBooks]]<ref name="justbooks">{{cite web|url=https://www.justbooks.in/ |title= JustBooks Solutions Pvt Ltd is a chain of rental libraries in India modeled on franchising}}</ref>
 
*[[Lichess]]<ref name="Lichess.org">{{cite web|url=https://github.com/ornicar/lila |title=Lichess.org |publisher=Lichess.org |accessdate=2016-12-18}}</ref>
 
*[[Mozilla]]<ref name="mozilla2">{{cite web|url=http://pedroalves-bi.blogspot.com/2011/03/firefox-4-twitter-and-nosql.html |title=ElasticSearch helps Mozilla Metrics team |publisher=Pedroalves-bi.blogspot.com |date= |accessdate=2014-02-04}}</ref>
 
*[[Netflix]]<ref name="Netflix">{{cite web|url=http://techblog.netflix.com/2014/11/introducing-raigad-elasticsearch-sidecar.html|title=The Netflix Tech Blog: Introducing Raigad - An Elasticsearch Sidecar}}</ref>
 
*[[Oracle Corporation]]<ref name="Oracle">{{cite web|url=https://docs.oracle.com/cd/E91187_01/pt855pbr2/eng/pt/tpst/concept_ImplementingPeopleSoftSearchUsingElasticsearch.html?pli=ul_d73e22_tpst?pli=ul_d73e22_tpst|title=Implementing PeopleSoft Search Using Elasticsearch}}</ref>
 
*[[Pixabay]]<ref name="Pixabay">{{cite web|url=http://pixabay.com/en/blog/posts/advanced-image-search-on-pixabay-46/|title=Advanced Image Search on Pixabay|last1=Steinberger|first1=Simon|date=1 June 2014|accessdate=3 May 2015}}</ref>  
 
*[[Quizlet]]<ref>{{Cite web|url=https://www.quora.com/What-programming-language-was-Quizlet-built-on|title=What programming language was Quizlet built on? - Quora|website=www.quora.com|access-date=2016-12-30}}</ref>
 
*[[Quora]]<ref name="quora">{{cite web|url=http://www.quora.com/Full-Text-Search-on-Quora/What-technology-does-Quora-use-for-its-full-text-search-infrastructure/answer/Adrien-Lucas-Ecoffet |title=Full Text Search on Quora |publisher=Quora.com |date= |accessdate=2014-02-04}}</ref>
 
*[[Reverb (marketplace)|Reverb]]<ref> {{cite web|author= Pritzker, Yan|url= http://product.reverb.com/2014/10/08/how-we-switched-elasticsearch-clusters-without-anybody/ |title= How we switched elasticsearch clusters without anybody noticing |publisher= Reverb Blog|date= 8 October 2014 }}</ref>
 
*[[SeatGeek]]
 
*[[Slurm Workload Manager]]
 
*[[Sophos]]{{Citation needed|date=February 2018}}
 
*[[SoundCloud]]<ref name="soundcloud">{{cite web|author=Petar Djekic |url=http://backstage.soundcloud.com/2012/12/architecture-behind-our-new-search-and-explore-experience/ |title=Architecture behind our new Search and Explore experience |publisher=Backstage.soundcloud.com |date= |accessdate=2014-02-04}}</ref>
 
*[[Stack Exchange]]<ref name="Technologies">{{cite web|url=http://nickcraver.com/blog/2013/11/22/what-it-takes-to-run-stack-overflow/|title=What it takes to run Stack Overflow|last1=Craver|first1=Nick|date=22 November 2013|accessdate=2 October 2014}}</ref>
 
*[[StumbleUpon]]<ref name="stumble">{{cite web|author= |url=http://www.stumbleupon.com/blog/dev/searching-for-serendipity/ |title=StumbleUpon &#124; Developer Blog |publisher=StumbleUpon.com |date= |accessdate=2014-02-21}}</ref>
 
*[[Team Foundation Server]] <ref>{{Cite web|url=https://www.visualstudio.com/en-us/docs/search/code/administration|title=Set up and administration for Microsoft Code Search in Visual Studio Team Services and Team Foundation Server|last=Homer|first=Alex|website=www.visualstudio.com|language=en|access-date=2017-02-23}}</ref>
 
* [[Vimeo]]<ref name="vimeo">{{cite web |url=https://www.elastic.co/elasticon/tour/2017/new-york/elastic-vimeo-elasticsearch-for-search |title=Elastic @ Vimeo: Elasticsearch for...SEARCH? |website = Elastic.co }}</ref> 
 
*[[Wikimedia Foundation]]<ref name="wikimedia">{{cite web|author=Horohoe |url=https://blog.wikimedia.org/2014/01/06/wikimedia-moving-to-elasticsearch/ |title=Wikimedia moving to Elasticsearch |date=2014-01-06 |accessdate=2014-02-21|first = Chad|undefined = |website = Wikimedia blog}}</ref>
 
*[[Zalando SE]]<ref name="zalando">{{cite web|author=Elhadaba |url=https://jobs.zalando.com/tech/blog/a-closer-look-at-elasticsearch-express/ |title=A Closer Look at Elasticsearch Express |date=2016-11-24 |accessdate=2017-09-18|first = Alaa|undefined = |website = Zalando blog}}</ref>  
 
{{div col end}}
 
  
== Managed services ==
+
== Errors ==
Several organizations offer Elasticsearch as a managed service, including [[Amazon Web Services]] Elasticsearch Service (since October 2015<ref>{{cite web|url=https://aws.amazon.com/blogs/aws/new-amazon-elasticsearch-service/|title=New – Amazon Elasticsearch Service - Amazon Web Services|date=1 October 2015|website=amazon.com}}</ref>),<ref>{{Cite web|url=https://aws.amazon.com/elasticsearch-service/|title=Amazon Elasticsearch Service|website=Amazon.com|access-date=2016-10-16}}</ref> Bonsai,<ref>{{Cite web|url=https://bonsai.io/|title=Elasticsearch on AWS|website=bonsai.io|access-date=2016-10-16}}</ref> Scalefastr,<ref>{{Cite web|url=https://www.scalefastr.io/|title=Managed Elasticsearch on Bare Metal|website=scalefastr.io|access-date=2017-11-30}}</ref> Elastic Cloud,<ref>{{Cite web|url=https://www.elastic.co/cloud|title=Hosted Elasticsearch & Kibana on AWS|last=|first=|date=|website=elastic.co|publisher=|access-date=2016-10-16}}</ref> Qbox,<ref>{{Cite web|url=https://qbox.io/hosted-elasticsearch|title=Hosted Elasticsearch|website=qbox.io|access-date=2016-10-16}}</ref> Searchly,<ref>{{Cite web|url=http://www.searchly.com/|title=Simple Elasticsearch Hosting|website=searchly.com|access-date=2016-10-16}}</ref> IBM,<ref>{{Cite web|url=https://console.ng.bluemix.net/catalog/services/compose-for-elasticsearch/|title=Elasticsearch on IBM Cloud|website=www.bluemix.net|access-date=2017-01-25}}</ref> Measured Search,<ref>{{Cite web|url=https://www.measuredsearch.com/cloud-search-service/elasticsearch/|title=Hosted Elasticsearch Service AWS Microsoft Azure Google Cloud {{!}} Measured Search|website=www.measuredsearch.com|language=en|access-date=2017-05-26}}</ref> [[Logz.io]],<ref>{{Cite web|url=https://logz.io|title=ELK as a Service and AI-powered Log Analytics|website=logz.io|access-date=2017-09-04}}</ref> [[IBM Bluemix]] Elasticsearch Service,<ref>{{Cite web|url=https://console.bluemix.net/catalog/services/compose-for-elasticsearch/|title=Compose for Elasticsearch - IBM Bluemix|website=console.bluemix.net|access-date=2017-09-14}}</ref> and [https://www.objectrocket.com/elasticsearch/ Object Rocket].<ref>{{Cite web|url=https://www.objectrocket.com/elasticsearch/|title=Hosted Elasticsearch with Kibana {{!}} ObjectRocket|website=ObjectRocket|access-date=2017-12-29}}</ref> Such managed services provide hosting, deployment, backup and other support as a package, reducing the skills and time needed to implement and operate Elasticsearch.<ref>{{Cite web|url=https://ctovision.com/aws-elasticsearch-setup/|title=Elasticsearch Setup|website=ctovision.com|access-date=2016-10-16}}</ref> Most managed services also include support for Kibana.
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* <code>[[Java.io.IOException: failed to obtain in-memory shard lock]]</code>
 +
 
 +
== Related terms ==
 +
* [[Elastic Cloud on Kubernetes (ECK)]]
 +
* <code>[[jvm.options]]</code>
 +
* [[Kibana]]: http://localhost:5601/
 +
* [[LogDNA]]
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* [[JVM arguments]]
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* [[ElasticSearch users]]
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* [[ElasticSearch alerts]]
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* [[OpenSearch]]
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* [[Elastisearch REST APIs]]
 +
* [[Elastic SIEM]]
 +
* [[Index]], [[Snapshot]]
 +
* <code>[[Empty client certificate chain]]</code>
 +
* [[Elasticsearch python client]]
 +
* <code>[[elasticsearch.helpers.errors.BulkIndexError]]</code>
 +
* [[Log explorers]]: [[GCP log explorer]]
 +
* [[Amazon CloudWatch Logs Insights]]
  
 
== See also ==
 
== See also ==
 +
* {{elasticsearchcmd}}
 +
* {{ES URLs}}
 +
* {{elasticsearch}}
 
* {{ELK}}
 
* {{ELK}}
* [[Cerebro]], [[Newman]]/[[/Postman/]] or [[/Elasticsearch-hq/]] management GUIs for Elasticsearch
 
* [[Grafana]], [[Curator]]<ref>https://github.com/elastic/curator</ref>
 
* [[SIEM]]
 
  
  
Line 70: Line 64:
 
Source: https://en.wikiversity.org/wiki/ElasticSearch
 
Source: https://en.wikiversity.org/wiki/ElasticSearch
  
[[Category:Information technology]]
+
[[Category:ELK]]
 
[[Category:Server administration]]
 
[[Category:Server administration]]
 
[[Category:Logging]]
 
[[Category:Logging]]

Latest revision as of 08:36, 25 April 2023

wikipedia:Elasticsearch is a web based search engine written in Java and released in 2010 that provides a distributed, multitenant-capable full-text search engine and schema-free JSON documents based on the Lucene library. You can use many differents tools to send logs to Elasticsearch, including Filebeat product from ElasticSearch developers. Elastisearch offer different software for sending data such as: Filebeat, Metricbeat[1], Packetbeat, Winlogbeat, Auditbeat, Heartbeat and Functionbeat

ElastaticSearch is also available as a docker image[2] or as service in AWS (AWS Elasticsearch) since November 2015.[3]

Activities[edit]

/usr/share/elasticsearch/config/elasticsearch.yml
Connect to Elasticsearch:
http://localhost:9200/
https://localhost:9200/

Managed services[edit]

Several organizations offer Elasticsearch as a managed service, including Amazon Web Services Elasticsearch Service (since October 2015[5]),[6] Bonsai,[7] Scalefastr,[8] Elastic Cloud,[9] Qbox,[10] Searchly,[11] IBM,[12] Measured Search,[13] Logz.io,[14] IBM Bluemix Elasticsearch Service,[15] and Object Rocket.[16] Such managed services provide hosting, deployment, backup and other support as a package, reducing the skills and time needed to implement and operate Elasticsearch.[17] Most managed services also include support for Kibana.

Errors[edit]

Related terms[edit]

See also[edit]


Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy.

Source: https://en.wikiversity.org/wiki/ElasticSearch

  1. https://www.elastic.co/products/beats/metricbeat
  2. https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html
  3. https://aws.amazon.com/blogs/aws/new-amazon-elasticsearch-service/
  4. https://www.elastic.co/pricing/
  5. "New – Amazon Elasticsearch Service - Amazon Web Services". amazon.com. 1 October 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  6. "Amazon Elasticsearch Service". Amazon.com. Retrieved 2016-10-16.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  7. "Elasticsearch on AWS". bonsai.io. Retrieved 2016-10-16.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  8. "Managed Elasticsearch on Bare Metal". scalefastr.io. Retrieved 2017-11-30.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  9. "Hosted Elasticsearch & Kibana on AWS". elastic.co. Retrieved 2016-10-16.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  10. "Hosted Elasticsearch". qbox.io. Retrieved 2016-10-16.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  11. "Simple Elasticsearch Hosting". searchly.com. Retrieved 2016-10-16.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  12. "Elasticsearch on IBM Cloud". www.bluemix.net. Retrieved 2017-01-25.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  13. "Hosted Elasticsearch Service AWS Microsoft Azure Google Cloud | Measured Search". www.measuredsearch.com. Retrieved 2017-05-26.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  14. "ELK as a Service and AI-powered Log Analytics". logz.io. Retrieved 2017-09-04.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  15. "Compose for Elasticsearch - IBM Bluemix". console.bluemix.net. Retrieved 2017-09-14.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  16. "Hosted Elasticsearch with Kibana | ObjectRocket". ObjectRocket. Retrieved 2017-12-29.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  17. "Elasticsearch Setup". ctovision.com. Retrieved 2016-10-16.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>

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