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, Packetbeat, Winlogbeat, Auditbeat, Heartbeat and Functionbeat

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

• Google Trends: https://trends.google.com/trends/explore?date=all&q=Elasticsearch

Installation

• Install ElasticSearch on Debian/Ubuntu
• Kubernetes: helm install elasticsearch elastic/elasticsearch‎‎
• macOS: brew install elasticsearch
• ElasticSearch Docker installation: https://www.docker.elastic.co/: Install ElasticSearch using Docker or Install ElasticSearch and Kibana using Docker
• Configuration file:

/usr/share/elasticsearch/config/elasticsearch.yml

• Logs:

/usr/share/elasticsearch/logs/

/var/log/elasticsearch/

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

• ELK backup and restore

• Review Elasticsearch logs

• Read most voted Elasticsearch queries in Stackoverflow https://stackoverflow.com/questions/tagged/elasticsearch?tab=Votes

• Install Elasticsearch-hq management GUIs for Elasticsearch
• Install ElasticSearch using Docker and Kibana: https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html

/usr/share/elasticsearch/config/elasticsearch.yml

Connect to Elasticsearch:

http://localhost:9200/

https://localhost:9200/

Managed services

Several organizations offer Elasticsearch as a managed service, including Amazon Web Services Elasticsearch Service (since October 2015), Bonsai, Scalefastr, Elastic Cloud, Qbox, Searchly, IBM, Measured Search, Logz.io, IBM Bluemix Elasticsearch Service, and Object Rocket. Such managed services provide hosting, deployment, backup and other support as a package, reducing the skills and time needed to implement and operate Elasticsearch. Most managed services also include support for Kibana.

Related terms

• RBAC
• Elastic Cloud on Kubernetes (ECK)
• jvm.options
• Kibana: http://localhost:5601/
• Prometheus
• LogDNA
• JVM arguments
• ElasticSearch users
• OpenSearch
• Elastisearch REST APIs
• Elastic SIEM
• Index
• Snapshot
• Empty client certificate chain
• Java.io.IOException: failed to obtain in-memory shard lock
• Elasticsearch python client
• elasticsearch.helpers.errors.BulkIndexError
• GCP log explorer
• /_cat/indices
• /_cat/shards
• /_cat/allocation
• /_cat/plugins
• /_cat/recovery
• /_cat/snapshot
• /_cat/repositories
• /_cat/health
• /_cat/templates

See also

• ElasticSearch: elasticsearch-certgen | elasticsearch-certutil | 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-users | elasticsearch-syskeygen | elasticsearch-env
• Cerebro, Newman/Postman or Elasticsearch-HQ management GUIs for Elasticsearch
• Elasticsearch, installation, ELK, Elastic X-Pack, elasticsearch.yml, logs, ECK, Elasticsearch curl URLs, Elastisearch REST APIs, /_cat/, /_cluster/, /_xpack/, QueryShardException, Elasticsearch index, ELK backup and restore, elasticsearch-cli, Elasticsearch versions, ElasticSearch Snapshot Lifecycle Management (SLM), Low disk watermark, Elasticsearch storage, Elasticsearch users, Elasticsearch roles, search context, shards, Elastic Cloud, Elastic Licensing, ElasticSearch alerts, ESQL
• Elastic: ELK, Elasticsearch, Logstash, Kibana, Installation, AWS Elasticsearch, Elastic SIEM, Elastic Beats, metricbeat, filebeat, journalbeat, Elastisearch Service , Search guard, Elasticsearch logs, curator, ILM, Lumberjack protocol, aws_elasticsearch_domain, KQL, elasticsearch.yml, elasticsearch-plugin, elasticsearch-certutil, Elasticsearch release notes/changelog

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