This topic describes the system events for Object Storage Service (OSS).

Event Description State Level Description
BucketEgressBandwidth The downstream bandwidth that is used by a bucket exceeds the report threshold. Normal INFO This event is triggered if the total downstream bandwidth that is used by all the buckets owned by an Alibaba Cloud account exceeds the report threshold of 128 Mbit/s.
BucketEgressBandwidthThresholdExceeded The downstream bandwidth that is used by buckets exceeds the throttling threshold. Normal WARN Buckets are 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.
  • The default threshold is 10 Gbit/s in mainland China regions.
  • The default threshold is 5 Gbit/s in regions outside mainland China, including the China (Hong Kong) region.

By default, the bandwidth of a single bucket is not throttled.

BucketIngressBandwidth The upstream bandwidth that is used by buckets has exceeded the report threshold. Normal INFO This event is triggered if the total upstream bandwidth that is used by all the buckets owned by an Alibaba Cloud account exceeds the report threshold of 128 Mbit/s.
BucketIngressBandwidthThresholdExceeded The upstream bandwidth that is used by a bucket has exceeded the throttling threshold. Normal WARN Buckets are 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.
  • The default threshold is 10 Gbit/s in mainland China regions.
  • The default threshold is 5 Gbit/s in regions outside mainland China, including the China (Hong Kong) region.

By default, the bandwidth of a single bucket is not throttled.

BucketImageCpuThresholdExceeded The number of CPU cores occupied by image processing for a bucket exceeds the throttling threshold. Normal WARN N/A
BucketMirrorIngressBandwidthThresholdExceeded The bandwidth of the pull from origin for a bucket exceeds the throttling threshold. Normal WARN N/A
BucketMirrorQpsThresholdExceeded The number of the pull from origin requests per second for a bucket exceeds the throttling threshold. Normal WARN N/A
BucketQpsThresholdExceeded The number of requests per second for a bucket exceeds the throttling threshold. Normal WARN N/A
UserEgressBandwidth The downstream bandwidth of a user has exceeded the report threshold. Normal INFO This event is triggered if the total downstream bandwidth that is used by all the buckets owned by an Alibaba Cloud account exceeds the report threshold of 128 Mbit/s.
UserEgressBandwidthThresholdExceeded The downstream bandwidth of a user has exceeded the throttling threshold. Normal WARN Throttling is triggered if the total downstream bandwidth that is used by all the buckets in a region exceeds the throttling threshold.
  • The default threshold is 10 Gbit/s in mainland China regions.
  • The default threshold is 5 Gbit/s in regions outside mainland China, including the China (Hong Kong) region.

By default, the bandwidth of a single bucket is not throttled.

UserIngressBandwidth The upstream bandwidth of a user has exceeded the report threshold. Normal INFO This event is triggered if the total upstream bandwidth that is used by all the buckets owned by an Alibaba Cloud account exceeds the report threshold of 128 Mbit/s.
UserIngressBandwidthThresholdExceeded The upstream bandwidth of a user has exceeded the throttling threshold. Normal WARN Throttling is triggered if the total upstream bandwidth that is used by all the buckets in a region exceeds the throttling threshold.
  • The default threshold is 10 Gbit/s in mainland China regions.
  • The default threshold is 5 Gbit/s in regions outside mainland China, including the China (Hong Kong) region.

By default, the bandwidth of a single bucket is not throttled.

UserImageCpuThresholdExceeded The number of CPU cores occupied by image processing for a user exceeds the throttling threshold. Normal WARN N/A
UserMirrorIngressBandwidthThresholdExceeded The bandwidth of the pull from origin for a user exceeds the throttling threshold Normal WARN N/A
UserMirrorQpsThresholdExceeded The number of the pull from origin requests per second for a user exceeds the throttling threshold Normal WARN N/A
UserQpsThresholdExceeded The number of requests per second for a user exceeds the throttling threshold Normal WARN N/A