Log Analysis¶
Scenario¶
This section describes how to obtain and analyze the API calling logs of dedicated gateways.
Prerequisites¶
APIs have been called.
Procedure¶
Log in to the management console.
In the navigation pane, choose Dedicated Gateways. Then click Access Console in the upper right corner of a dedicated gateway.
Choose API Calling > Access Logs, and click Configure Log Collection.
Enable log collection (
).Specify a log group and log stream, and click OK. For details about log groups and log streams, see Log Tank Service User Guide.
Click Log Fields to view the description of each log field. Then view and analyze logs by referring to the log field descriptions.
To export logs, see section "Log Transfer" in the Log Tank Service User Guide.
Fields in access logs are separated using spaces. The following table describes each log field.
Table 1 Log field description¶ No.
Field
Description
1
remote_addr
Client IP address
2
request_id
Request ID
3
api_id
API ID
4
user_id
Project ID provided by a requester for IAM authentication
5
app_id
App ID provided by a requester for app-based authentication
6
time_local
Time when a request is received
7
request_time
Request latency
8
request_method
HTTP request method
9
host
Domain name
10
router_uri
Request URI
11
server_protocol
Request protocol
12
status
Response status code
13
bytes_sent
Response size in bytes, including the status line, header, and body.
14
request_length
Request length in bytes, including the start line, header, and body.
15
http_user_agent
User agent ID
16
http_x_forwarded_for
X-Forwarded-For header field
17
upstream_addr
Backend address
18
upstream_uri
Backend URI
19
upstream_status
Backend response code
20
upstream_connect_time
Time taken for establishing a connection with the backend
21
upstream_header_time
Duration from the beginning of the establishment of a connection to receiving the first byte from the backend
22
upstream_response_time
Duration from the beginning of the establishment of a connection to receiving the last byte from the backend
23
region_id
Region ID