How to install Monitoring Memory and Disk Metrics for Amazon EC2 Linux Instances

Resolution

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/mon-scripts.html#mon-scripts-getstarted

STEP 1:

To install the required packages on Red Hat Enterprise Linux 7

Log on to your instance. For more information, see Connect to Your Linux Instance.

At a command prompt, install packages as follows:

sudo yum install unzip perl-Switch perl-DateTime perl-Sys-Syslog perl-LWP-Protocol-https perl-Digest-SHA --enablerepo="rhui-REGION-rhel-server-optional" -y

STEP 2:

Install Monitoring Scripts

The following steps show you how to download, uncompress, and configure the CloudWatch Monitoring Scripts on an EC2 Linux instance.

To download, install, and configure the monitoring scripts

1. At a command prompt, move to a folder where you want to store the monitoring scripts and run the following command to download them:

   sudo curl https://aws-cloudwatch.s3.amazonaws.com/downloads/CloudWatchMonitoringScripts-1.2.2.zip -O

   1. Run the following commands to install the monitoring scripts you downloaded:

      sudo unzip CloudWatchMonitoringScripts-1.2.2.zip

      sudo rm CloudWatchMonitoringScripts-1.2.2.zip

   2. sudo chown -R opsadminuser:opsadminuser aws-scripts-mon/

   3. cd aws-scripts-mon

The package for the monitoring scripts contains the following files:

• CloudWatchClient.pm – Shared Perl module that simplifies calling Amazon CloudWatch from other scripts.
• mon-put-instance-data.pl – Collects system metrics on an Amazon EC2 instance (memory, swap, disk space utilization) and sends them to Amazon CloudWatch.
• mon-get-instance-stats.pl – Queries Amazon CloudWatch and displays the most recent utilization statistics for the EC2 instance on which this script is executed.
• awscreds.template – File template for AWS credentials that stores your access key ID and secret access key.
• LICENSE.txt – Text file containing the Apache 2.0 license.
• NOTICE.txt – Copyright notice.

sudo corntab -e

 * * * * * /home/opsadminuser/aws-scripts-mon/mon-put-instance-data.pl --mem-used-incl-cache-buff --mem-util --mem-used --mem-avail
 
* * * * * /home/opsadminuser/aws-scripts-mon/mon-put-instance-data.pl --disk-path=/dev/xvda2 --disk-space-util --disk-space-used --disk-space-avail --disk-space-units=gigabytes

* * * * * /home/opsadminuser/aws-scripts-mon/mon-put-instance-data.pl --disk-path=/dev/xvdf1 --disk-space-util --disk-space-used --disk-space-avail --disk-space-units=gigabytes