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This article to share with you is about ubuntu16.04 how to install ElasticSearch, Xiaobian think quite practical, so share to everyone to learn, I hope you can read this article after some harvest, not much to say, follow Xiaobian to see it.

initial configuration

Configuration time synchronization

turn off the firewall

ufw disable

Set ulimit

See https://my.oschina.net/u/914655/blog/3067520

Modify max_map_count value

On linux systems, elasticsearch uses hybrid mmapfs / niofs by default to store index files, so the operating system will mainly limit the storage space through mmap, so if the storage space is full, then it will throw an exception, we can use the following command to change the settings.

Temporary settings: sysctl -w vm.max_map_count=655360vm.max_map_count = 655360 Permanent settings: echo 'vm.max_map_count=655360' >> /etc/sysctl.confsysctl -pvm.max_map_count = 655360

installation

cd /appwget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.3.1-linux-x86_64.tar.gztar zxvf elasticsearch-7.3.1-linux-x86_64.tar.gzcd elasticsearch-7.3.1/# es cannot be run as root useradd elasticsearch cd/datamkdir elasticcd elasticmkdir datamkdir logschown -R elasticsearch.elasticsearch /app/elasticsearch-7.3.1chown -R elasticsearch.elasticsearch /data/elastic

profile

#Modify jvm parameters vim config/jvm.options-Xms12g-Xmx12g# vim config/elasticsearch.yml#Cluster name, to be the same cluster.name: jp-es#Node name in cluster, to be unique, generally self-increasing node.name: ES-node1 #Specify the tribal attribute of node, which is a larger range than cluster node.attr.rack: r1#Whether it can be called master node.master: true#Whether to store data node.data: true#datapath path.data:/data/elastic/data #logpath path. logs: /data/elastic/logs#Allow external access to network.host: 0.0.0.0# Access port http.port: 9200#discovery.seed_hosts: ["10.13.6.9"10.13.6.10,"10.13.6.1110.13.6.1210.13.6.13"]#When the cluster is started, the nodes participating in the master election cluster.initial_nodes: ["ES-node1", "ES-node2", "ES-node 3"]

Other nodes note node.name, node.master

start

su elasticsearchbin/elasticsearch -d

test

curl http://localhost:9200{ "name" : "ES-node1", "cluster_name" : "jp-es", "cluster_uuid" : "KiRH05UbTTC25NPOr2zDRQ", "version" : { "number" : "7.3.1", "build_flavor" : "default", "build_type" : "tar", "build_hash" : "4749ba6", "build_date" : "2019-08-19T20:19:25.651794Z", "build_snapshot" : false, "lucene_version" : "8.1.0", "minimum_wire_compatibility_version" : "6.8.0", "minimum_index_compatibility_version" : "6.0.0-beta1" }, "tagline" : "You Know, for Search"}curl http://localhost:9200/_cluster/health{ "cluster_name":"jp-es", "status":"green", "timed_out":false, "number_of_nodes":5, "number_of_data_nodes":5, "active_primary_shards":0, "active_shards":0, "relocating_shards":0, "initializing_shards":0, "unassigned_shards":0, "delayed_unassigned_shards":0, "number_of_pending_tasks":0, "number_of_in_flight_fetch":0, "task_max_waiting_in_queue_millis":0, "active_shards_percent_as_number":100} The above is how to install ElasticSearch in ubuntu16.04. Xiaobian believes that some knowledge points may be seen or used in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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