Alarmereignisse und EventBridge - Amazon CloudWatch
Ereignisse zur Änderung des AlarmstatusEreignisse zur Änderung der Alarmkonfiguration

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Alarmereignisse und EventBridge

CloudWatch sendet Ereignisse an Amazon, EventBridge wenn ein CloudWatch Alarm erstellt, aktualisiert, gelöscht oder der Alarmstatus geändert wird. Sie können diese Ereignisse verwenden EventBridge , um Regeln zu schreiben, die Maßnahmen ergreifen, z. B. Sie benachrichtigen, wenn sich der Status eines Alarms ändert. Weitere Informationen finden Sie unter Was ist Amazon EventBridge?

CloudWatch garantiert die Übermittlung von Ereignissen zur Änderung des Alarmstatus an EventBridge.

Ereignisse zur Änderung des Alarmstatus

In diesem Abschnitt werden Beispielereignisse angezeigt, an die gesendet werden EventBridge , wenn sich der Status eines Alarms ändert. Wählen Sie eine Registerkarte aus, um verschiedene Arten von Ereignissen zur Änderung des Alarmstatus anzuzeigen.

Single Metric Alarm

Ereignisse, die generiert werden, wenn ein einzelner metrischer Alarm den Status ändert. Zu diesen Ereignissen gehören state auch previousState Felder mit den Bewertungsergebnissen des Alarms.

{
    "version": "0",
    "id": "c4c1c1c9-6542-e61b-6ef0-8c4d36933a92",
    "detail-type": "CloudWatch Alarm State Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2019-10-02T17:04:40Z",
    "region": "us-east-1",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServerCpuTooHigh"
    ],
    "detail": {
        "alarmName": "ServerCpuTooHigh",
        "configuration": {
            "description": "Goes into alarm when server CPU utilization is too high!",
            "metrics": [
                {
                    "id": "30b6c6b2-a864-43a2-4877-c09a1afc3b87",
                    "metricStat": {
                        "metric": {
                            "dimensions": {
                                "InstanceId": "i-12345678901234567"
                            },
                            "name": "CPUUtilization",
                            "namespace": "AWS/EC2"
                        },
                        "period": 300,
                        "stat": "Average"
                    },
                    "returnData": true
                }
            ]
        },
        "previousState": {
            "reason": "Threshold Crossed: 1 out of the last 1 datapoints [0.0666851903306472 (01/10/19 13:46:00)] was not greater than the threshold (50.0) (minimum 1 datapoint for ALARM -> OK transition).",
            "reasonData": "{\"version\":\"1.0\",\"queryDate\":\"2019-10-01T13:56:40.985+0000\",\"startDate\":\"2019-10-01T13:46:00.000+0000\",\"statistic\":\"Average\",\"period\":300,\"recentDatapoints\":[0.0666851903306472],\"threshold\":50.0}",
            "timestamp": "2019-10-01T13:56:40.987+0000",
            "value": "OK"
        },
        "state": {
            "reason": "Threshold Crossed: 1 out of the last 1 datapoints [99.50160229693434 (02/10/19 16:59:00)] was greater than the threshold (50.0) (minimum 1 datapoint for OK -> ALARM transition).",
            "reasonData": "{\"version\":\"1.0\",\"queryDate\":\"2019-10-02T17:04:40.985+0000\",\"startDate\":\"2019-10-02T16:59:00.000+0000\",\"statistic\":\"Average\",\"period\":300,\"recentDatapoints\":[99.50160229693434],\"threshold\":50.0}",
            "timestamp": "2019-10-02T17:04:40.989+0000",
            "value": "ALARM"
        }
    }
}
Metric Math Alarm

Ereignisse, die generiert werden, wenn sich der Status eines metrischen mathematischen Alarms ändert. Zu diesen Ereignissen gehören die Details des mathematischen Ausdrucks im configuration Feld.

{
    "version": "0",
    "id": "2dde0eb1-528b-d2d5-9ca6-6d590caf2329",
    "detail-type": "CloudWatch Alarm State Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2019-10-02T17:20:48Z",
    "region": "us-east-1",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:TotalNetworkTrafficTooHigh"
    ],
    "detail": {
        "alarmName": "TotalNetworkTrafficTooHigh",
        "configuration": {
            "description": "Goes into alarm if total network traffic exceeds 10Kb",
            "metrics": [
                {
                    "expression": "SUM(METRICS())",
                    "id": "e1",
                    "label": "Total Network Traffic",
                    "returnData": true
                },
                {
                    "id": "m1",
                    "metricStat": {
                        "metric": {
                            "dimensions": {
                                "InstanceId": "i-12345678901234567"
                            },
                            "name": "NetworkIn",
                            "namespace": "AWS/EC2"
                        },
                        "period": 300,
                        "stat": "Maximum"
                    },
                    "returnData": false
                },
                {
                    "id": "m2",
                    "metricStat": {
                        "metric": {
                            "dimensions": {
                                "InstanceId": "i-12345678901234567"
                            },
                            "name": "NetworkOut",
                            "namespace": "AWS/EC2"
                        },
                        "period": 300,
                        "stat": "Maximum"
                    },
                    "returnData": false
                }
            ]
        },
        "previousState": {
            "reason": "Unchecked: Initial alarm creation",
            "timestamp": "2019-10-02T17:20:03.642+0000",
            "value": "INSUFFICIENT_DATA"
        },
        "state": {
            "reason": "Threshold Crossed: 1 out of the last 1 datapoints [45628.0 (02/10/19 17:10:00)] was greater than the threshold (10000.0) (minimum 1 datapoint for OK -> ALARM transition).",
            "reasonData": "{\"version\":\"1.0\",\"queryDate\":\"2019-10-02T17:20:48.551+0000\",\"startDate\":\"2019-10-02T17:10:00.000+0000\",\"period\":300,\"recentDatapoints\":[45628.0],\"threshold\":10000.0}",
            "timestamp": "2019-10-02T17:20:48.554+0000",
            "value": "ALARM"
        }
    }
}
Anomaly Detection Alarm

Ereignisse, die generiert werden, wenn ein Alarm bei der Erkennung von Anomalien den Status ändert. Zu diesen Ereignissen gehören obere und untere Schwellenwerte im reasonData Feld.

{
    "version": "0",
    "id": "daafc9f1-bddd-c6c9-83af-74971fcfc4ef",
    "detail-type": "CloudWatch Alarm State Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2019-10-03T16:00:04Z",
    "region": "us-east-1",
    "resources": ["arn:aws:cloudwatch:us-east-1:123456789012:alarm:EC2 CPU Utilization Anomaly"],
    "detail": {
        "alarmName": "EC2 CPU Utilization Anomaly",
        "state": {
            "value": "ALARM",
            "reason": "Thresholds Crossed: 1 out of the last 1 datapoints [0.0 (03/10/19 15:58:00)] was less than the lower thresholds [0.020599444741798756] or greater than the upper thresholds [0.3006915352732461] (minimum 1 datapoint for OK -> ALARM transition).",
            "reasonData": "{\"version\":\"1.0\",\"queryDate\":\"2019-10-03T16:00:04.650+0000\",\"startDate\":\"2019-10-03T15:58:00.000+0000\",\"period\":60,\"recentDatapoints\":[0.0],\"recentLowerThresholds\":[0.020599444741798756],\"recentUpperThresholds\":[0.3006915352732461]}",
            "timestamp": "2019-10-03T16:00:04.653+0000"
        },
        "previousState": {
            "value": "OK",
            "reason": "Thresholds Crossed: 1 out of the last 1 datapoints [0.166666666664241 (03/10/19 15:57:00)] was not less than the lower thresholds [0.0206719426210418] or not greater than the upper thresholds [0.30076870222143803] (minimum 1 datapoint for ALARM -> OK transition).",
            "reasonData": "{\"version\":\"1.0\",\"queryDate\":\"2019-10-03T15:59:04.670+0000\",\"startDate\":\"2019-10-03T15:57:00.000+0000\",\"period\":60,\"recentDatapoints\":[0.166666666664241],\"recentLowerThresholds\":[0.0206719426210418],\"recentUpperThresholds\":[0.30076870222143803]}",
            "timestamp": "2019-10-03T15:59:04.672+0000"
        },
        "configuration": {
            "description": "Goes into alarm if CPU Utilization is out of band",
            "metrics": [{
                "id": "m1",
                "metricStat": {
                    "metric": {
                        "namespace": "AWS/EC2",
                        "name": "CPUUtilization",
                        "dimensions": {
                            "InstanceId": "i-12345678901234567"
                        }
                    },
                    "period": 60,
                    "stat": "Average"
                },
                "returnData": true
            }, {
                "id": "ad1",
                "expression": "ANOMALY_DETECTION_BAND(m1, 0.8)",
                "label": "CPUUtilization (expected)",
                "returnData": true
            }]
        }
    }
}
Composite Alarm

Ereignisse, die generiert werden, wenn ein zusammengesetzter Alarm seinen Status ändert. Zu diesen Ereignissen gehören Informationen zur Unterdrückung in den actionsSuppressedReason Feldern actionsSuppressedBy und.

{
    "version": "0",
    "id": "d3dfc86d-384d-24c8-0345-9f7986db0b80",
    "detail-type": "CloudWatch Alarm State Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2022-07-22T15:57:45Z",
    "region": "us-east-1",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServiceAggregatedAlarm"
    ],
    "detail": {
        "alarmName": "ServiceAggregatedAlarm",
        "state": {
            "actionsSuppressedBy": "WaitPeriod",
            "actionsSuppressedReason": "Actions suppressed by WaitPeriod",
            "value": "ALARM",
            "reason": "arn:aws:cloudwatch:us-east-1:123456789012:alarm:SuppressionDemo.EventBridge.FirstChild transitioned to ALARM at Friday 22 July, 2022 15:57:45 UTC",
            "reasonData": "{\"triggeringAlarms\":[{\"arn\":\"arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServerCpuTooHigh\",\"state\":{\"value\":\"ALARM\",\"timestamp\":\"2022-07-22T15:57:45.394+0000\"}}]}",
            "timestamp": "2022-07-22T15:57:45.394+0000"
        },
        "previousState": {
            "value": "OK",
            "reason": "arn:aws:cloudwatch:us-east-1:123456789012:alarm:SuppressionDemo.EventBridge.Main was created and its alarm rule evaluates to OK",
            "reasonData": "{\"triggeringAlarms\":[{\"arn\":\"arn:aws:cloudwatch:us-east-1:123456789012:alarm:TotalNetworkTrafficTooHigh\",\"state\":{\"value\":\"OK\",\"timestamp\":\"2022-07-14T16:28:57.770+0000\"}},{\"arn\":\"arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServerCpuTooHigh\",\"state\":{\"value\":\"OK\",\"timestamp\":\"2022-07-14T16:28:54.191+0000\"}}]}",
            "timestamp": "2022-07-22T15:56:14.552+0000"
        },
        "configuration": {
            "alarmRule": "ALARM(ServerCpuTooHigh) OR ALARM(TotalNetworkTrafficTooHigh)",
            "actionsSuppressor": "ServiceMaintenanceAlarm",
            "actionsSuppressorWaitPeriod": 120,
            "actionsSuppressorExtensionPeriod": 180
        }
    }
}

Ereignisse zur Änderung der Alarmkonfiguration

In diesem Abschnitt werden Beispielereignisse angezeigt, an die gesendet werden EventBridge , wenn sich die Konfiguration eines Alarms ändert. Zu den Konfigurationsänderungen gehören das Erstellen, Aktualisieren oder Löschen von Alarmen.

Creation Events

Ereignisse, die generiert werden, wenn neue Alarme erstellt werden. Zu diesen Ereignissen gehört die anfängliche Alarmkonfiguration im configuration Feld, die auf „Erstellen“ operation gesetzt ist.

Beispiel für einen zusammengesetzten Alarm

{
    "version": "0",
    "id": "91535fdd-1e9c-849d-624b-9a9f2b1d09d0",
    "detail-type": "CloudWatch Alarm Configuration Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2022-03-03T17:06:22Z",
    "region": "us-east-1",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServiceAggregatedAlarm"
    ],
    "detail": {
        "alarmName": "ServiceAggregatedAlarm",
        "operation": "create",
        "state": {
            "value": "INSUFFICIENT_DATA",
            "timestamp": "2022-03-03T17:06:22.289+0000"
        },
        "configuration": {
            "alarmRule": "ALARM(ServerCpuTooHigh) OR ALARM(TotalNetworkTrafficTooHigh)",
            "alarmName": "ServiceAggregatedAlarm",
            "description": "Aggregated monitor for instance",
            "actionsEnabled": true,
            "timestamp": "2022-03-03T17:06:22.289+0000",
            "okActions": [],
            "alarmActions": [],
            "insufficientDataActions": []
        }
    }
}

Beispiel für einen Verbundalarm mit Schalldämpfer

{
    "version": "0",
    "id": "454773e1-09f7-945b-aa2c-590af1c3f8e0",
    "detail-type": "CloudWatch Alarm Configuration Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2022-07-14T13:59:46Z",
    "region": "us-east-1",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServiceAggregatedAlarm"
    ],
    "detail": {
        "alarmName": "ServiceAggregatedAlarm",
        "operation": "create",
        "state": {
            "value": "INSUFFICIENT_DATA",
            "timestamp": "2022-07-14T13:59:46.425+0000"
        },
        "configuration": {
            "alarmRule": "ALARM(ServerCpuTooHigh) OR ALARM(TotalNetworkTrafficTooHigh)",
            "actionsSuppressor": "ServiceMaintenanceAlarm",
            "actionsSuppressorWaitPeriod": 120,
            "actionsSuppressorExtensionPeriod": 180,
            "alarmName": "ServiceAggregatedAlarm",
            "actionsEnabled": true,
            "timestamp": "2022-07-14T13:59:46.425+0000",
            "okActions": [],
            "alarmActions": [],
            "insufficientDataActions": []
        }
    }
}
Update Events

Ereignisse, die generiert werden, wenn bestehende Alarme geändert werden. Diese Ereignisse enthalten configuration sowohl als auch previousConfiguration Felder, die zeigen, was sich geändert hat.

Beispiel für einen metrischen Alarm

{
    "version": "0",
    "id": "bc7d3391-47f8-ae47-f457-1b4d06118d50",
    "detail-type": "CloudWatch Alarm Configuration Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2022-03-03T17:06:34Z",
    "region": "us-east-1",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServerCpuTooHigh"
    ],
    "detail": {
        "alarmName": "ServerCpuTooHigh",
        "operation": "update",
        "state": {
            "value": "INSUFFICIENT_DATA",
            "timestamp": "2022-03-03T17:06:13.757+0000"
        },
        "configuration": {
            "evaluationPeriods": 1,
            "threshold": 80,
            "comparisonOperator": "GreaterThanThreshold",
            "treatMissingData": "ignore",
            "metrics": [
                {
                    "id": "86bfa85f-b14c-ebf7-8916-7da014ce23c0",
                    "metricStat": {
                        "metric": {
                            "namespace": "AWS/EC2",
                            "name": "CPUUtilization",
                            "dimensions": {
                                "InstanceId": "i-12345678901234567"
                            }
                        },
                        "period": 300,
                        "stat": "Average"
                    },
                    "returnData": true
                }
            ],
            "alarmName": "ServerCpuTooHigh",
            "description": "Goes into alarm when server CPU utilization is too high!",
            "actionsEnabled": true,
            "timestamp": "2022-03-03T17:06:34.267+0000",
            "okActions": [],
            "alarmActions": [],
            "insufficientDataActions": []
        },
        "previousConfiguration": {
            "evaluationPeriods": 1,
            "threshold": 70,
            "comparisonOperator": "GreaterThanThreshold",
            "treatMissingData": "ignore",
            "metrics": [
                {
                    "id": "d6bfa85f-893e-b052-a58b-4f9295c9111a",
                    "metricStat": {
                        "metric": {
                            "namespace": "AWS/EC2",
                            "name": "CPUUtilization",
                            "dimensions": {
                                "InstanceId": "i-12345678901234567"
                            }
                        },
                        "period": 300,
                        "stat": "Average"
                    },
                    "returnData": true
                }
            ],
            "alarmName": "ServerCpuTooHigh",
            "description": "Goes into alarm when server CPU utilization is too high!",
            "actionsEnabled": true,
            "timestamp": "2022-03-03T17:06:13.757+0000",
            "okActions": [],
            "alarmActions": [],
            "insufficientDataActions": []
        }
    }
}

Beispiel für einen metrischen Alarm mit Schalldämpfer


    {
    "version": "0",
    "id": "4c6f4177-6bd5-c0ca-9f05-b4151c54568b",
    "detail-type": "CloudWatch Alarm Configuration Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2022-07-14T13:59:56Z",
    "region": "us-east-1",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServiceAggregatedAlarm"
    ],
    "detail": {
        "alarmName": "ServiceAggregatedAlarm",
        "operation": "update",
        "state": {
            "actionsSuppressedBy": "WaitPeriod",
            "value": "ALARM",
            "timestamp": "2022-07-14T13:59:46.425+0000"
        },
        "configuration": {
            "alarmRule": "ALARM(ServerCpuTooHigh) OR ALARM(TotalNetworkTrafficTooHigh)",
            "actionsSuppressor": "ServiceMaintenanceAlarm",
            "actionsSuppressorWaitPeriod": 120,
            "actionsSuppressorExtensionPeriod": 360,
            "alarmName": "ServiceAggregatedAlarm",
            "actionsEnabled": true,
            "timestamp": "2022-07-14T13:59:56.290+0000",
            "okActions": [],
            "alarmActions": [], Remove 
            "insufficientDataActions": []
        },
        "previousConfiguration": {
            "alarmRule": "ALARM(ServerCpuTooHigh) OR ALARM(TotalNetworkTrafficTooHigh)",
            "actionsSuppressor": "ServiceMaintenanceAlarm",
            "actionsSuppressorWaitPeriod": 120,
            "actionsSuppressorExtensionPeriod": 180,
            "alarmName": "ServiceAggregatedAlarm",
            "actionsEnabled": true,
            "timestamp": "2022-07-14T13:59:46.425+0000",
            "okActions": [],
            "alarmActions": [],
            "insufficientDataActions": []
        }
    }
}
Deletion Events

Ereignisse, die beim Löschen von Alarmen generiert werden. Diese Ereignisse beinhalten die endgültige Alarmkonfiguration und sind operation auf „Löschen“ gesetzt.

Beispiel für einen metrischen mathematischen Alarm

{
    "version": "0",
    "id": "f171d220-9e1c-c252-5042-2677347a83ed",
    "detail-type": "CloudWatch Alarm Configuration Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2022-03-03T17:07:13Z",
    "region": "us-east-*",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:TotalNetworkTrafficTooHigh"
    ],
    "detail": {
        "alarmName": "TotalNetworkTrafficTooHigh",
        "operation": "delete",
        "state": {
            "value": "INSUFFICIENT_DATA",
            "timestamp": "2022-03-03T17:06:17.672+0000"
        },
        "configuration": {
            "evaluationPeriods": 1,
            "threshold": 10000,
            "comparisonOperator": "GreaterThanThreshold",
            "treatMissingData": "ignore",
            "metrics": [{
                    "id": "m1",
                    "metricStat": {
                        "metric": {
                            "namespace": "AWS/EC2",
                            "name": "NetworkIn",
                            "dimensions": {
                                "InstanceId": "i-12345678901234567"
                            }
                        },
                        "period": 300,
                        "stat": "Maximum"
                    },
                    "returnData": false
                },
                {
                    "id": "m2",
                    "metricStat": {
                        "metric": {
                            "namespace": "AWS/EC2",
                            "name": "NetworkOut",
                            "dimensions": {
                                "InstanceId": "i-12345678901234567"
                            }
                        },
                        "period": 300,
                        "stat": "Maximum"
                    },
                    "returnData": false
                },
                {
                    "id": "e1",
                    "expression": "SUM(METRICS())",
                    "label": "Total Network Traffic",
                    "returnData": true
                }
            ],
            "alarmName": "TotalNetworkTrafficTooHigh",
            "description": "Goes into alarm if total network traffic exceeds 10Kb",
            "actionsEnabled": true,
            "timestamp": "2022-03-03T17:06:17.672+0000",
            "okActions": [],
            "alarmActions": [],
            "insufficientDataActions": []
        }
    }
}

Beispiel für einen metrischen mathematischen Alarm mit Suppressor

{
    "version": "0",
    "id": "e34592a1-46c0-b316-f614-1b17a87be9dc",
    "detail-type": "CloudWatch Alarm Configuration Change",
    "source": "aws.cloudwatch",
    "account": "123456789012",
    "time": "2022-07-14T14:00:01Z",
    "region": "us-east-*",
    "resources": [
        "arn:aws:cloudwatch:us-east-1:123456789012:alarm:ServiceAggregatedAlarm"
    ],
    "detail": {
        "alarmName": "ServiceAggregatedAlarm",
        "operation": "delete",
        "state": {
            "actionsSuppressedBy": "WaitPeriod",
            "value": "ALARM",
            "timestamp": "2022-07-14T13:59:46.425+0000"
        },
        "configuration": {
            "alarmRule": "ALARM(ServerCpuTooHigh) OR ALARM(TotalNetworkTrafficTooHigh)",
            "actionsSuppressor": "ServiceMaintenanceAlarm",
            "actionsSuppressorWaitPeriod": 120,
            "actionsSuppressorExtensionPeriod": 360,
            "alarmName": "ServiceAggregatedAlarm",
            "actionsEnabled": true,
            "timestamp": "2022-07-14T13:59:56.290+0000",
            "okActions": [],
            "alarmActions": [],
            "insufficientDataActions": []
        }
    }
}