Install Elasticsearch with RPM

We sign all of our packages with the Elasticsearch Signing Key (PGP key D88E42B4, available from https://pgp.mit.edu) with fingerprint:

4609 5ACC 8548 582C 1A26 99A9 D27D 666C D88E 42B4

Download and install the public signing key:

rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

Create a file called elasticsearch.repo in the /etc/yum.repos.d/ directory for RedHat based distributions, or in the /etc/zypp/repos.d/ directory for OpenSuSE based distributions, containing:

[elasticsearch-5.x]
name=Elasticsearch repository for 5.x packages
baseurl=https://artifacts.elastic.co/packages/5.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

And your repository is ready for use. You can now install Elasticsearch with one of the following commands:

sudo yum install elasticsearch 
sudo dnf install elasticsearch 
sudo zypper install elasticsearch 

	Use yum on CentOS and older Red Hat based distributions.
	Use dnf on Fedora and other newer Red Hat distributions.
	Use zypper on OpenSUSE based distributions

The RPM for Elasticsearch v5.5.0 can be downloaded from the website and installed as follows:

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.0.rpm
sha1sum elasticsearch-5.5.0.rpm 
sudo rpm --install elasticsearch-5.5.0.rpm

Compare the SHA produced by sha1sum or shasum with the published SHA.

On systemd-based distributions, the installation scripts will attempt to set kernel parameters (e.g., vm.max_map_count); you can skip this by masking the systemd-sysctl.service unit.

Elasticsearch is not started automatically after installation. How to start and stop Elasticsearch depends on whether your system uses SysV init or systemd (used by newer distributions). You can tell which is being used by running this command:

ps -p 1

Use the chkconfig command to configure Elasticsearch to start automatically when the system boots up:

sudo chkconfig --add elasticsearch

Elasticsearch can be started and stopped using the service command:

sudo -i service elasticsearch start
sudo -i service elasticsearch stop

If Elasticsearch fails to start for any reason, it will print the reason for failure to STDOUT. Log files can be found in /var/log/elasticsearch/.

To configure Elasticsearch to start automatically when the system boots up, run the following commands:

sudo /bin/systemctl daemon-reload
sudo /bin/systemctl enable elasticsearch.service

Elasticsearch can be started and stopped as follows:

sudo systemctl start elasticsearch.service
sudo systemctl stop elasticsearch.service

These commands provide no feedback as to whether Elasticsearch was started successfully or not. Instead, this information will be written in the log files located in /var/log/elasticsearch/.

By default the Elasticsearch service doesn’t log information in the systemd journal. To enable journalctl logging, the --quiet option must be removed from the ExecStart command line in the elasticsearch.service file.

When systemd logging is enabled, the logging information are available using the journalctlcommands:

To tail the journal:

sudo journalctl -f

To list journal entries for the elasticsearch service:

sudo journalctl --unit elasticsearch

To list journal entries for the elasticsearch service starting from a given time:

sudo journalctl --unit elasticsearch --since  "2016-10-30 18:17:16"

Check man journalctl or https://www.freedesktop.org/software/systemd/man/journalctl.html for more command line options.

You can test that your Elasticsearch node is running by sending an HTTP request to port 9200 on localhost:

GET /

which should give you a response something like this:

{
  "name" : "Cp8oag6",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "AT69_T_DTp-1qgIJlatQqA",
  "version" : {
    "number" : "5.5.0",
    "build_hash" : "f27399d",
    "build_date" : "2016-03-30T09:51:41.449Z",
    "build_snapshot" : false,
    "lucene_version" : "6.5.1"
  },
  "tagline" : "You Know, for Search"
}

Elasticsearch loads its configuration from the /etc/elasticsearch/elasticsearch.yml file by default. The format of this config file is explained in Configuring Elasticsearch.

The RPM also has a system configuration file (/etc/sysconfig/elasticsearch), which allows you to set the following parameters:

Distributions that use systemd require that system resource limits be configured via systemd rather than via the /etc/sysconfig/elasticsearch file. See Systemd configuration for more information.

The RPM places config files, logs, and the data directory in the appropriate locations for an RPM-based system: