Elasticsearch Deployment Documentation (Ubuntu 14.04)

Elasticsearch Deployment Documentation (Ubuntu 14.04)

Reference links

• Https://www.elastic.co/guide/en/elasticsearch/guide/current/heap-sizing.html
• Https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration.html#setup-configuration
• Https://www.elastic.co/guide/en/elasticsearch/guide/current/_file_descriptors_and_mmap.html
• Https://www.elastic.co/guide/en/elasticsearch/guide/current/_important_configuration_changes.html
• Https://github.com/grigorescu/Brownian/wiki/ElasticSearch-Configuration

Installing Java

sudo add-apt-repository ppa:webupd8team/javasudo apt-get  updatesudo apt-get Install oracle-java8-installersudo apt-get install oracle-java8-set-default

Installing Elasticsearch

Wget-qo-https://packages.elastic.co/gpg-key-elasticsearch | sudo apt-key add-"Deb Http://packages.elastic.co/elasticsearch/1.6/debian Stable main" | sudo tee-a/etc/apt/sources.listsudo apt-get  updatesudo apt-get  Install Elasticsearchsudo update

Elasticsearch each directory description

type	description	location
Home	Home of Elasticsearch Installation	/usr/share/elasticsearch
Bin	Binary scripts including Elasticsearch to start a node	/usr/share/elasticsearch/bin
Conf	Configuration Files Elasticsearch.yml and Logging.yml	/etc/elasticsearch
Conf	Environment variables including heap size,file descriptors	/etc/default/elasticsearch
Data	The location of the data files	/var/lib/elasticsearch/
Logs	Log Files Location	/var/log/elasticsearch
Plugins	Plugin Files Location	/usr/share/elasticsearch/plugins

Configuration

Es_heap_size

# modified in/etc/default/elasticsearch: es_heap_size=4g    #不要超过32g, if the entire machine only deploys ES, half of the memory is used in Java HEAP, The other half gives Lucene

File descriptors

Cat <<EOF>>/etc/security/65535eof# in /etc/default/  Modified in Elasticsearch: max_open_files=65535

Virtual Memory

Cat <<EOF>>/etc/sysctl.confvm.max_map_count=262144-P

Memory Settings

# in/etc/elasticsearch/true# modified in /etc/default/Elasticsearch: Max_locked_ MEMORY=unlimited

Other

In/etc/elasticsearch/elasticsearch.yml Modify: # Cluster name, same set of group, name to set the same cluster.name:elasticsearch_production# node name Node.name:elasticsearch_ 001_data# data path, can be configured multiple, comma separated, note the permissions of the directory, to ensure that elasticsearch users can write Path.data:/path/to/data1,/path/to/data2 # Log path, note the permissions of the directory to ensure that Elasticsearch users can write Path.logs:/path/to/logs# Plugin path path.plugins:/path/to/plugins# This property is the minimum number of nodes that are to form a cluster that has the primary node eligibility and is connected to each other # (numbers of Master-eligible nodes/2) +1. The following values are set in the case of 3 with primary node eligibility # Because of the number of nodes, can be increased later, or reduced, so the configuration can dynamically modify the Discovery.zen.minimum_master_nodes:2# Recovery Control gateway.recover_after_nodes:2Gateway.expected_nodes:3gateway.recover_after_time:5m# off multicast, with unicast. and specify at least one host discovery.zen.ping.multicast.enabled that can accept unicast:falsediscovery.zen.ping.unicast.hosts: ["192.168.2.1:9300","192.168.2.2:9300","192.168.2.3:9300"]

Start

sudo/etc/init.d/Elasticsearch start# Verify that some of the above configurations are configured successfully curl localhost:9200/_nodes/process?pretty

Elasticsearch Deployment Documentation (Ubuntu 14.04)