Editing Elasticsearch

[[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]]<ref>https://www.elastic.co/products/beats/metricbeat</ref>, Packetbeat, Winlogbeat, Auditbeat, Heartbeat and
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/
</ref>

* [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 installation]] ==

== Command line tools ==

    [[elasticsearch-certgen]]
    [[elasticsearch-certutil]]
    [[elasticsearch-create-enrollment-token]]
    [[elasticsearch-croneval]]
    [[elasticsearch-keystore]]
    [[elasticsearch-node]]
    [[elasticsearch-reconfigure-node]]
    [[elasticsearch-reset-password]]
    [[elasticsearch-saml-metadata]]
    [[elasticsearch-service-tokens]]
    [[elasticsearch-setup-passwords]]
    [[elasticsearch-shard]]
    [[elasticsearch-syskeygen]]
    [[elasticsearch-users]]
    [[elasticsearch-env]]
    [[elasticsearch-cli]]

== Activities ==
* Read [[ElasticSearch release notes]]/versions: https://github.com/elastic/elasticsearch/releases
* [[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>
:: [[Connect to Elasticsearch]]:
:::  <code>http://localhost:9200/</code>
:::  <code>https://localhost:9200/</code>

== Managed services ==
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]].

== Errors ==
* <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]]
* [[JVM arguments]]
* [[ElasticSearch users]]
* [[OpenSearch]]
* [[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]]
* [[No space left on device]]

== See also ==
* {{elasticsearchcmd}}
* {{ES URLs}}
* {{elasticsearch}}
* {{ELK}}


{{CC license}}
Source: https://en.wikiversity.org/wiki/ElasticSearch

[[Category:ELK]]
[[Category:Server administration]]
[[Category:Logging]]