meierror / ambari-es

Elasticsearch on Ambari.

Elasticsearch

Ambari service for install and manageing Elasticsearch stack on HDP cluster

Note: there show the version of environment.

• Ambari Version: 2.4.1.0-22

• HDP Stack Version: 2.5

• Elasticsearch Version: 5.2.0

• JDK Version: 1.8.0_111

  下载地址

There are some problems to be noted here

• Elasticsearch's pid file unable:

  • pid_dir = config['configurations']['elastic-site']['pid_dir']
  • pid_file = format("{pid_dir}/es.pid")

  I'm defining it this way： pid_file = "/var/run/elasticsearch/es.pid"

Warning:

• After the Elasticsearch successfully,Wait a moment.
• The node.master values should be defined as [ 1 or 0 ] in elastic-site configs.

Troubleshoot

If the elasticsearch start failed,modifity the configuration:

• vim /etc/security/limits.conf

* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096

• vim /etc/security/limits.d/90-nproc.conf

*      soft     nproc     2048

• vim /etc/sysctl.conf

vm.max_map_count=655360

sysctl -p <file> (default /etc/sysctl.conf)