This topic describes the cloud service system events that event monitoring supports.

Elastic Compute Service (ECS) system events

For more information about the description of ECS system events, see Overview of event notifications.

Name Description Type Status Level Remarks
Instance:InstanceFailure.Reboot Beginning of instance restart due to an instance error. Exception Executing CRITICAL
Instance:InstanceFailure.Reboot End of instance restart due to an instance error. Exception Executed CRITICAL
Instance:SystemFailure.Reboot Beginning of instance restart due to a system error. Exception Executing CRITICAL
Instance:SystemFailure.Reboot End of instance restart due to a system error. Exception Executed CRITICAL
Instance:SystemMaintenance.Reboot An instance restart is scheduled due to system maintenance. Maintenance Scheduled CRITICAL
Instance:SystemMaintenance.Reboot An instance restart due to system maintenance is averted. Maintenance Avoided CRITICAL
Instance:SystemMaintenance.Reboot An instance restart due to system maintenance is being executed. Maintenance Executing CRITICAL
Instance:SystemMaintenance.Reboot An instance restart due to system maintenance is completed. Maintenance Executed CRITICAL
Instance:SystemMaintenance.Reboot An instance restart due to system maintenance is canceled. Maintenance Canceled CRITICAL
Instance:SystemMaintenance.Reboot An instance restart due to system maintenance has failed. Maintenance Failed CRITICAL
Disk:Stalled Beginning of disk performance impact. Exception Executing CRITICAL
Disk:Stalled End of disk performance impact. Exception Executed CRITICAL
Instance:StateChange Notification of instance status change. StatusNotification Normal INFO Event details describe instance status, including Running, Stopped, Expired, Expires Soon, Locked, Stopping, To Be Released, and Deleted (the instance has been released). For more information about the instance lifecycle, see Instance lifecycle.
Instance:PreemptibleInstanceInterruption Notification of preemptible instance interruption. StatusNotification Normal WARN Preemptible instances change to the To Be Released status due to various reasons. For example, the market price is higher than your bid, or the relationship between resource supplies and demand changes. For more information, see Preemptible instances.
Snapshot:CreateSnapshotCompleted The disk snapshot is created. StatusNotification Normal INFO

Server Load Balancer system events

Name Description Level
CertKeyExpired_1 The certificate will expire in 1 day. WARN
CertKeyExpired_3 The certificate will expire in 3 days. WARN
CertKeyExpired_7 The certificate will expire in 7 days. WARN
CertKeyExpired_15 The certificate will expire in 15 days. WARN
CertKeyExpired_30 The certificate will expire in 30 days. WARN
CertKeyExpired_60 The certificate will expire in 60 days. WARN

Object Storage Service system events

Name Description Level Remarks
BucketEgressBandwidth The downstream bandwidth that is used by buckets has exceeded the report threshold. INFO This event is triggered if the total downstream bandwidth that is used by all the buckets owned by a user exceeds the report threshold of 128 Mbit/s.
BucketEgressBandwidthThresholdExceeded The downstream bandwidth that is used by a bucket has exceeded the throttling threshold. WARN This bucket is subject to regional throttling. Throttling is triggered if the total downstream bandwidth that is used by all the buckets in a region exceeds the throttling threshold. Alibaba Cloud throttling threshold is 10 Gbit/s for each region in mainland China, and 5 Gbit/s for China (Hong Kong) and overseas regions by default. No bucket-level throttling threshold is configured by default.
BucketIngressBandwidth The upstream bandwidth that is used by buckets has exceeded the report threshold. INFO This event is triggered if the total upstream bandwidth that is used by all the buckets owned by a user exceeds the report threshold of 128 Mbit/s.
BucketIngressBandwidthThresholdExceeded The upstream bandwidth that is used by a bucket has exceeded the throttling threshold. WARN This bucket is subject to regional throttling. Throttling is triggered if the total upstream bandwidth that is used by of all the buckets in a region exceeds the throttling threshold. Alibaba Cloud throttling threshold is 10 Gbit/s for each region in Mainland China, and 5 Gbit/s for China (Hong Kong) and overseas regions by default. No bucket-level throttling threshold is configured by default.
UserEgressBandwidth The downstream bandwidth of a user has exceeded the report threshold. INFO This event is triggered if the total downstream bandwidth that is used by all the buckets owned by a user exceeds the report threshold of 128 Mbit/s.
UserEgressBandwidthThresholdExceeded The downstream bandwidth of a user has exceeded the throttling threshold. WARN Throttling is triggered if the total downstream bandwidth that is used by all the buckets in a region exceeds the throttling threshold. Alibaba Cloud throttling threshold is 10 Gbit/s for each region in mainland China, and 5 Gbit/s for China (Hong Kong) and overseas regions by default. No bucket-level throttling threshold is configured by default.
UserIngressBandwidth The upstream bandwidth of a user has exceeded the report threshold. INFO This event is triggered if the total upstream bandwidth that is used by all the buckets owned by a user exceeds the report threshold of 128 Mbit/s.
UserIngressBandwidthThresholdExceeded The upstream bandwidth of a user has exceeded the throttling threshold. WARN Throttling is triggered if the total upstream bandwidth that is used by all the buckets in a region exceeds the throttling threshold. Alibaba Cloud throttling threshold is 10 Gbit/s for each region in mainland China, and 5 Gbit/s for China (Hong Kong) and overseas regions by default. No bucket-level throttling threshold is configured by default.

Auto Scaling system events

Name Description Status Level
AUTOSCALING:SCALE_IN_ERROR The scale-in activity of the scaling group failed. Unnormal CRITICAL
AUTOSCALING:SCALE_IN_SUCCESS The scale-in activity of the scaling group was successful. Normal INFO
AUTOSCALING:SCALE_OUT_ERROR The scale-out activity of the scaling group failed. Unnormal CRITICAL
AUTOSCALING:SCALE_OUT_SUCCESS The scale-out activity of the scaling group was successful. Normal INFO
AUTOSCALING:SCALE_REJECT The scaling activity of the scaling group was rejected. Warn WARN
AUTOSCALING:SCHEDULE_TASK_EXPIRING Scheduled task expiration reminder. Warn WARN
AUTOSCALING:SCALE_OUT_START The scale-out activity of the scaling group has started. normal INFO
AUTOSCALING:SCALE_IN_START The scale-in activity of the scaling group has started. normal INFO

Alibaba Cloud IoT Platform system events

Name Description Type Status Level
Account_Connect_QPS_Limit The number of connection requests per second for the current account has reached the upper limit. Exception Fail WARN
Account_Downlink_QPS_Limit The number of requests per second that the current account sent to devices has reached the upper limit. Exception Fail WARN
Account_RuleEngine_DataForward_QPS_Limit The number of requests per second that the current account sent to the rule engine has reached the upper limit. Exception Fail WARN
Account_Uplink_QPS_Limit The number of requests per second that the current account published has reached the upper limit. Exception Fail WARN
Device_Downlink_QPS_Limit The downstream QPS of any device has reached the upper limit. Exception Fail WARN
Device_Uplink_QPS_Limit The upstream QPS of any device has reached the upper limit. Exception Fail WARN

Smart Access Gateway system events

Name Description Status Level
AccessGatewayFailover The access point failed over. Agwfailover INFO
ConnectionDisconnect The network is disconnected. Disconnect CRITICAL
DeviceHacked The device is under attack. Hacked CRITICAL
DeviceOffline The device is offline. Offline CRITICAL
DeviceOnline The device is online. Online INFO

CloudMonitor system events

Name Description Status Level
Group_AddResourcesFailed_QuotaReached Failed to add instances to a group in real time because the resource usage has reached the upper limit. Failed CRITICAL
Agent_Status_Stopped Heartbeat check failed. Stopped CRITICAL
Agent_Status_Running Heartbeat check is resumed. Running CRITICAL

Database Backup system events

Name Description Status Level
CloseContBackup Incremental backup is disabled. Failed INFO
ContBackupFail An exception has occurred during incremental backup. Failed WARN
DataRestoreFail An exception has occurred during data recovery. Failed WARN
DataRestoreSuccess Data recovery is successful. Running WARN
FullBackupFail An error has occurred during full backup. Failed WARN
InstancePause The backup plan is suspended. Failed INFO
InstanceStart The backup plan has started. Running INFO
OpenContBackup Incremental backup is enabled. Running INFO

Relational Database Service system events

Name Description Status Level
Instance_Failover Instance failover occurred. Executed WARN
Instance_Failure_Start Beginning of an instance failure. Executing CRITICAL
Instance_Failure_End End of an instance failure. Executed CRITICAL

ApsaraDB for Redis system events

Name Description Status Level
Instance_Failover Instance failover occurred. Executed WARN
Instance_Failure_Start Beginning of an instance failure. Executing CRITICAL
Instance_Failure_End End of an instance failure. Executed CRITICAL

ApsaraDB for MongoDB system events

Name Description Status Level
Instance_Failure_Start Beginning of an instance failure. Executing CRITICAL
Instance_Failure_End End of an instance failure. Executed CRITICAL

AnalyticDB events

Name Description Level
StorageUsage The disk usage has exceeded 80%. CRITICAL
InsertFailureRate The insert failure rate is 10%. CRITICAL
SelectFailureRate The query failure rate is 10%. CRITICAL

Edge Node Service event

Name Description Type Status Level
EnsRegion:NetworkDown:Executing The edge node failed. Exception Executing CRITICAL
EnsRegion: NetworkDown: Executed The edge node recovered. Exception Executed CRITICAL
EnsRegion:NetworkMigration:Scheduled Network cutover scheduled for the edge node. Maintenance Scheduled WARN
EnsRegion:NetworkMigration:Executing Network cutover is being executed for the edge node. Maintenance Executing CRITICAL
EnsRegion:NetworkMigration:Executed Network cutover is completed for the edge node. Maintenance Executed INFO
EnsRegion:NetworkMigration:Canceled Network cutover is canceled for the edge node. Maintenance Canceled INFO
Instance:SystemFailure.Reboot:Executing The instance is being restarted due to system errors. Exception Executing CRITICAL
Instance:SystemFailure.Reboot:Executed The instance has been restarted due to system errors. Exception Executed CRITICAL