三歩あるけば物も忘れる

CloudwatchAgentによるプロセス監視設定例になります。

以下の公式ドキュメントより、procstatプラグインでプロセス監視を試してみました。
https://docs.aws.amazon.com/ja_jp/AmazonCloudWatch/latest/monitoring/CloudWatch-Agent-procstat-process-metrics.html

[metrics]-[metrics_collected]セクションに、以下の書式を追記します。
[httpd]プロセスを例に、プロセス数をカウントしています。

      "procstat": [
        {
          "pid_file": "var/run/httpd/httpd.pid",
          "measurement": [
            "pid_count"
          ],
          "metrics_collection_interval": 60
        }
      ]

すべて > CWAgent > ImageId,InstanceId,InstanceType,pid_finder,pidfile

ハイライト行が追加する該当行になります。

開く

{
  "agent": {
    "metrics_collection_interval": 60,
    "run_as_user": "root"
  },
  "logs": {
    "logs_collected": {
      "files": {
        "collect_list": [
          {
            "file_path": "/var/log/httpd/access_log",
            "log_group_name": "access_log",
            "log_stream_name": "{instance_id}"
          }
        ]
      }
    }
  },
  "metrics": {
    "append_dimensions": {
      "AutoScalingGroupName": "${aws:AutoScalingGroupName}",
      "ImageId": "${aws:ImageId}",
      "InstanceId": "${aws:InstanceId}",
      "InstanceType": "${aws:InstanceType}"
    },
    "metrics_collected": {
      "collectd": {
        "metrics_aggregation_interval": 60
      },
      "disk": {
        "measurement": [
          "used_percent"
        ],
        "metrics_collection_interval": 60,
        "resources": [
          "*"
        ]
      },
      "mem": {
        "measurement": [
          "mem_used_percent"
        ],
        "metrics_collection_interval": 60
      },
      "statsd": {
        "metrics_aggregation_interval": 60,
        "metrics_collection_interval": 10,
        "service_address": ":8125"
      },
      "procstat": [
        {
          "pid_file": "var/run/httpd/httpd.pid",
          "measurement": [
            "pid_count"
          ],
          "metrics_collection_interval": 60
        }
      ]
    }
  }
}

      "procstat": [
        {
          "exe": "httpd",
          "measurement": [
            "pid_count"
          ],
          "metrics_collection_interval": 60
        }
      ]

すべて > CWAgent > ImageId,InstanceId,InstanceType,exe,pid_finder

ハイライト行が追加する該当行になります。

開く

{
  "agent": {
    "metrics_collection_interval": 60,
    "run_as_user": "root"
  },
  "logs": {
    "logs_collected": {
      "files": {
        "collect_list": [
          {
            "file_path": "/var/log/httpd/access_log",
            "log_group_name": "access_log",
            "log_stream_name": "{instance_id}"
          }
        ]
      }
    }
  },
  "metrics": {
    "append_dimensions": {
      "AutoScalingGroupName": "${aws:AutoScalingGroupName}",
      "ImageId": "${aws:ImageId}",
      "InstanceId": "${aws:InstanceId}",
      "InstanceType": "${aws:InstanceType}"
    },
    "metrics_collected": {
      "collectd": {
        "metrics_aggregation_interval": 60
      },
      "disk": {
        "measurement": [
          "used_percent"
        ],
        "metrics_collection_interval": 60,
        "resources": [
          "*"
        ]
      },
      "mem": {
        "measurement": [
          "mem_used_percent"
        ],
        "metrics_collection_interval": 60
      },
      "statsd": {
        "metrics_aggregation_interval": 60,
        "metrics_collection_interval": 10,
        "service_address": ":8125"
      },
      "procstat": [
        {
          "exe": "httpd",
          "measurement": [
            "pid_count"
          ],
          "metrics_collection_interval": 60
        }
      ]
    }
  }
}