CloudWatchJVM

JVM metrics for the AWS CloudWatch with jstat.

Prerequisites

• Amazon Linux 2
• Open JDK 8 (including Amazon Corretto 8)

Requires

• awscli
• jps
• jstat

Summary

• A utility shell script to send metrics of JVM to the AWS CloudWatch.

Configuration

You must to change the value of NAME with jar filename shown by jps command.

NAME=JARfilenameByJps

You can write a part of the jar filename.

Installation

$ sudo cp jvm.sh /usr/local/bin/
$ sudo chmod +x /usr/local/bin/jvm.sh
$ sudo cp jvm_cron /etc/cron.d/jvm

You can be suitably change these file names.

IAM policy

The following policy is required.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "cloudwatch:PutMetricData",
                "cloudwatch:GetMetricStatistics",
                "cloudwatch:ListMetrics",
                "ec2:DescribeTags"
            ],
            "Effect": "Allow",
            "Resource": "*"
        }
    ]
}

Changelog

1.1.0

• Improved script to pass shellcheck
  • Replaced $UID with $(id -u) for POSIX sh compatibility
  • Replaced legacy backticks with $(...) notation
  • Added double quotes to prevent globbing and word splitting
  • Removed unnecessary $ in arithmetic expressions

1.0.0

• initial release