Does OBS Support Traffic Monitoring?

Yes.

On Cloud Eye, you can monitor the OBS metrics described in the following table.

Metric ID	Metric	Description	Value Range	Monitored Entity	Monitoring Period (Original Metric)
download_bytes	Bytes Downloaded	Specifies the response bytes of all download requests made to all buckets in a region, including bytes in HTTP entity bodies. Unit: byte	≥ 0 bytes	Bucket	5 min
upload_bytes	Bytes Uploaded	Specifies the bytes of all upload requests made to all buckets in a region, including bytes in HTTP entity bodies. Unit: byte	≥ 0 bytes	Bucket	5 min
get_request_count	GET Requests	Specifies the number of GET, HEAD, or OPTIONS requests made to all buckets and objects in the buckets of a region. Unit: count	≥ 0 counts	Bucket	5 min
put_request_count	PUT Requests	Specifies the number of PUT, POST, and DELETE requests made to all buckets and objects in the buckets of a region. Unit: count	≥ 0 counts	Bucket	5 min
first_byte_latency	First Byte Download Delay	Specifies the average time from receiving a GET, HEAD, or OPTIONS request to the time that the system starts to respond in a measurement period. Unit: millisecond	≥ 0 ms	Bucket	5 min
request_count_4xx	4xx Errors	Specifies the times that the server responds to requests whose error codes are 4xx. Unit: count	≥ 0 counts	Bucket	5 min
request_count_5xx	5xx Errors	Specifies the times that the server responds to requests whose error codes are 5xx. Unit: count	≥ 0 counts	Bucket	5 min