转载自: http://techieroop.com/install-elasticsearch-2-x-on-centos-6/
This article will cover install Elasticsearch 2.x version on CentOS 6. Also guideline to change to Default Cluster and Index settings in Elasticsearch 2.x. So Let’s start with prerequisites
Prerequisites:
Elasticsearch needed at least Java 7.
Install Elasticsearch 2.x On CentOS 6 using Elasticsearch Repository
Install Public Signing Key:
rpm --import https://packages.elastic.co/GPG-KEY-elasticsearch
Create new repo in your /etc/yum.repos.d/ directory. For example I have created elasticsearch.repo here.
/etc/yum.repos.d/elasticsearch.repo
[elasticsearch-2.x] name=Elasticsearch repository for 2.x packages baseurl=http://packages.elastic.co/elasticsearch/2.x/centos gpgcheck=1 gpgkey=http://packages.elastic.co/GPG-KEY-elasticsearch enabled=1
Now Elasticsearch 2.x will avilable for installation using yum
yum install elasticsearch
Note: The repositories do not work with older rpm based distributions that still use RPM v3, like CentOS5.
chkconfig --add elasticsearch
Otherwise if your distribution is using systemd:
sudo /bin/systemctl daemon-reload sudo /bin/systemctl enable elasticsearch.service
Now we have done with Elasticsearch installation. You can check your default Elasticsearch configuration in/etc/elasticsearch/elasticsearch.yml
By default its cluster name will be elasticsearch.
Now we will change Cluster, Index and Host info in elasticsearch.yml
To illustrate here I am naming my Elasticsearch cluster name “Techieroop” and node name “techieroop-es-node“. Add your host into “discovery.zen.ping.unicast.hosts“.
Summary of important Elasticsearch Configuration:
cluster.name: TechieRoop node.name: techieroop-es-node discovery.zen.ping.unicast.hosts: ["127.0.0.1"]
Your elasticsearch.yml will be look like this
# =========== Elasticsearch Configuration ============== # # NOTE: Elasticsearch comes with reasonable defaults for most settings. # Before you set out to tweak and tune the configuration, make sure you # understand what are you trying to accomplish and the consequences. # # The primary way of configuring a node is via this file. This template lists # the most important settings you may want to configure for a production cluster. # # Please see the documentation for further information on configuration options: # <http://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration.html> # # ----------------- Cluster --------------- # # Use a descriptive name for your cluster: # cluster.name: TechieRoop # #------------------- Node ---------------- # # Use a descriptive name for the node: # node.name: techieroop-es-node # # Add custom attributes to the node: # # node.rack: r1 # # ----------------- Paths ---------------- # # Path to directory where to store the data (separate multiple locations by comma): # # path.data: /path/to/data # # Path to log files: # # path.logs: /path/to/logs # # ------------------ Memory ----------------- # # Lock the memory on startup: # # bootstrap.mlockall: true # # Make sure that the `ES_HEAP_SIZE` environment variable is set to about half the memory # available on the system and that the owner of the process is allowed to use this limit. # # Elasticsearch performs poorly when the system is swapping the memory. # # ----------------- Network ---------------- # # Set the bind address to a specific IP (IPv4 or IPv6): # # network.host: 192.168.0.1 # # Set a custom port for HTTP: # # http.port: 9200 # # For more information, see the documentation at: # <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html> # # ---------------- Gateway ------------------- # # Block initial recovery after a full cluster restart until N nodes are started: # # gateway.recover_after_nodes: 3 # # For more information, see the documentation at: # <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-gateway.html> # # --------------- Discovery ----------------- # # Elasticsearch nodes will find each other via unicast, by default. # # Pass an initial list of hosts to perform discovery when new node is started: # The default list of hosts is ["127.0.0.1", "[::1]"] # discovery.zen.ping.unicast.hosts: ["127.0.0.1"] # # Prevent the "split brain" by configuring the majority of nodes (total number of nodes / 2 + 1): # # discovery.zen.minimum_master_nodes: 3 # # For more information, see the documentation at: # <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery.html> # # --------------- Various ----------------- # # Disable starting multiple nodes on a single system: # # node.max_local_storage_nodes: 1 # # Require explicit names when deleting indices: # # action.destructive_requires_name: true
Start the Elasticsearch:
sudo service elasticsearch start
Verify you installation :
curl -XGET 'localhost:9200'
Output:
{ "name" : "techieroop-es-node", "cluster_name" : "Techieroop", "version" : { "number" : "2.1.1", "build_hash" : "40e2c53a6b6c2972b3d13846e450e66f4375bd71", "build_timestamp" : "2015-12-15T13:05:55Z", "build_snapshot" : false, "lucene_version" : "5.3.1" }, "tagline" : "You Know, for Search" }
Install Elasticsearch 2.x on CentOS 6http://techieroop.com/install-elasticsearch-2-x-on-centos-6/http://techieroop.com/wp-content/uploads/2016/01/install-elasticsearch-2-on-centos6.pnghttp://techieroop.com/wp-content/uploads/2016/01/install-elasticsearch-2-on-centos6-150x150.png17 January 2016ElasticsearchElastic,Elasticsearch
<h3>Install Elasticsearch 2.1 on CentOS 6</h3> This article will cover install Elasticsearch 2.x version on CentOS 6. Also guideline to change to Default Cluster and Index settings in Elasticsearch 2.x. So Let's start with prerequisites<strong>Prerequisites:</strong>Elasticsearch needed at least Java 7. <h3>Install Elasticsearch 2.x On CentOS 6 using Elasticsearch Repository</h3> <strong>Install Public Signing Key:</strong> <pre>rpm --import https://packages.elastic.co/GPG-KEY-elasticsearch</pre> Create new repo in your <strong>/etc/yum.repos.d/</strong> directory. For example I have created elasticsearch.repo here./etc/yum.repos.d/elasticsearch.repo <pre>[elasticsearch-2.x] name=Elasticsearch repository for 2.x packages baseurl=http://packages.elastic.co/elasticsearch/2.x/centos gpgcheck=1 gpgkey=http://packages.elastic.co/GPG-KEY-elasticsearch enabled=1</pre> Now Elasticsearch 2.x will avilable for installation using yum <pre>yum install elasticsearch</pre> Note: The repositories do not work with older rpm based distributions that still use RPM v3, like CentOS5. <pre>chkconfig --add elasticsearch</pre> Otherwise if your distribution is using systemd: <pre>sudo /bin/systemctl daemon-reload sudo /bin/systemctl enable elasticsearch.service</pre> Now we have done with Elasticsearch installation. You can check your default Elasticsearch configuration in <strong>/etc/elasticsearch/elasticsearch.yml</strong>By default its cluster name will be elasticsearch.Now we will change Cluster, Index and Host info in elasticsearch.ymlTo illustrate here I am naming my Elasticsearch cluster name "<em><strong>Techieroop</strong></em>" and node name "<em><strong>techieroop-es-node</strong></em>". Add your host into "<strong><em>discovery.zen.ping.unicast.hosts</em></strong>".Summary of important Elasticsearch Configuration: <pre>cluster.name: TechieRoop node.name: techieroop-es-node discovery.zen.ping.unicast.hosts: ["127.0.0.1"]</pre> Your <strong>elasticsearch.yml</strong> will be look like this <pre># =========== Elasticsearch Configuration ============== # # NOTE: Elasticsearch comes with reasonable defaults for most settings. # Before you set out to tweak and tune the configuration, make sure you # understand what are you trying to accomplish and the consequences. # # The primary way of configuring a node is via this file. This template lists # the most important settings you may want to configure for a production cluster. # # Please see the documentation for further information on configuration options: # <http://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration.html> # # ----------------- Cluster --------------- # # Use a descriptive name for your cluster: # cluster.name: TechieRoop # #------------------- Node ---------------- # # Use a descriptive name for the node: # node.name: techieroop-es-node # # Add custom attributes to the node: # # node.rack: r1 # # ----------------- Paths ---------------- # # Path to directory where to store the data (separate multiple locations by comma): # # path.data: /path/to/data # # Path to log files: # # path.logs: /path/to/logs # # ------------------ Memory ----------------- # # Lock the memory on startup: # # bootstrap.mlockall: true # # Make sure that the `ES_HEAP_SIZE` environment variable is set to about half the memory # available on the system and that the owner of the process is allowed to use this limit. # # Elasticsearch performs poorly when the system is swapping the memory. # # ----------------- Network ---------------- # # Set the bind address to a specific IP (IPv4 or IPv6): # # network.host: 192.168.0.1 # # Set a custom port for HTTP: # # http.port: 9200 # # For more information, see the documentation at: # <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html> # # ---------------- Gateway ------------------- # # Block initial recovery after a full cluster restart until N nodes are started: # # gateway.recover_after_nodes: 3 # # For more information, see the documentation at: # <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-gateway.html> # # --------------- Discovery ----------------- # # Elasticsearch nodes will find each other via unicast, by default. # # Pass an initial list of hosts to perform discovery when new node is started: # The default list of hosts is ["127.0.0.1", "[::1]"] # discovery.zen.ping.unicast.hosts: ["127.0.0.1"] # # Prevent the "split brain" by configuring the majority of nodes (total number of nodes / 2 + 1): # # discovery.zen.minimum_master_nodes: 3 # # For more information, see the documentation at: # <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery.html> # # --------------- Various ----------------- # # Disable starting multiple nodes on a single system: # # node.max_local_storage_nodes: 1 # # Require explicit names when deleting indices: # # action.destructive_requires_name: true </pre> <strong>Start the Elasticsearch:</strong> <pre>sudo service elasticsearch start</pre> <strong>Verify you installation :</strong> <pre>curl -XGET 'localhost:9200'</pre> <strong>Output:</strong> <pre>{ "name" : "techieroop-es-node", "cluster_name" : "Techieroop", "version" : { "number" : "2.1.1", "build_hash" : "40e2c53a6b6c2972b3d13846e450e66f4375bd71", "build_timestamp" : "2015-12-15T13:05:55Z", "build_snapshot" : false, "lucene_version" : "5.3.1" }, "tagline" : "You Know, for Search" }</pre>Roopendrahttps://plus.google.com/+TechieroopendraRoopendraVishwakarmaroopendramca@gmail.comAdministratorI'm Roopendra Vishwakarma, a Programmer and Blogger from India. I have experience in Web Development and Open Source Technology. I mostly write about latest technology, getting started tutorial and tricks and tips.TechieRoop
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