Orest K okulik

## elastic-ec2.md

      
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                okulik
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              Created
              April 4, 2015 11:55
            
              
                ElasticSearch installation, EC2 instance provisioning, logstash configuration etc.
              
          
    Provisioning EC2 instance for ElasticSearch

EC2 instance type

Use c3.xlarge instance or c3.2xlarge instance to store ElasticSearch server. We need a fair bit of RAM and computing power, as well as 2 SSD disks for storage. We need to choose exising IAM role or create a new one so that ElasticSearch can seamlessly discover other cluster nodes hosted on EC2. Also, don't forget to add both SSDs to the list of devices (/dev/sdb and /dev/sdc).
Linux system modification

Increase number of open file handles

First we need to increase system-wide file descriptor limits. To make it work temporary (will reset on the next reboot) execute from bash:

  
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