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    Edge Security Acceleration:Instant Logs

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    Edge Security Acceleration:Instant Logs

    Last Updated:Sep 09, 2026

    Instant Logs is a lightweight log service that lets you view Functions and Pages logs in real time from the console. Use the log data to monitor function execution and make adjustments to Functions and Pages accordingly.

    Limitations

    • Each Functions and Pages instance supports only one active monitoring window at a time, with a maximum duration of 60 minutes per session.

    • Instant Logs stores up to 40 records per session in reverse chronological order. When the buffer is full, new records overwrite the oldest ones.

    Start monitoring

    1. Log on to the ESA console, and in the navigation pane on the left, choose Edge Computing and AI > Functions and Pages.

    2. On the Functions and Pages page, click the target function or Pages.

    3. Select Logs > Instant Logs > Start Monitoring to start collecting logs.

      • Click image to view the detailed fields for a specific log record.

      • Click image in the upper-right corner to download the log data as a JSON file.

      • If you switch function pages during monitoring, monitoring stops and the history is cleared. Click Start Monitoring again to restart Instant Logs.

    Stop monitoring

    1. Log on to the ESA console, and in the navigation pane on the left, choose Edge Computing and AI > Functions and Pages.

    2. On the Functions and Pages page, click the target function or Pages.

    3. Select Logs > Instant Logs, and click Stop Monitoring, image, or image to stop the monitoring window and log collection.

      Note

      The collected log history remains visible on the page. Clicking Start Monitoring again appends new logs to the existing history.

    Fields

    Field

    Type

    Description

    ClientRequestID

    string

    The unique ID of the main client request.

    LogTimestamp

    Timestamp ISO8601

    The timestamp when the log event was generated, in ISO 8601 format. Example: 2024-01-01T00:00:00+08:00.

    SubRequestID

    string

    The unique ID of the sub-request.

    SubRequestStatus

    int

    The status of the sub-request.

    SubRequest2xxCount

    int

    The number of sub-requests that returned a 2xx status code.

    SubRequest3xxCount

    int

    The number of sub-requests that returned a 3xx status code.

    SubRequest4xxCount

    int

    The number of sub-requests that returned a 4xx status code.

    SubRequest5xxCount

    int

    The number of sub-requests that returned a 5xx status code.

    SubRequestOtherCount

    int

    The number of sub-requests that returned other status codes.

    CodeVersion

    string

    The version number of the code.

    ConsoleLog

    string

    Custom log messages generated by the console.alert() call in your JavaScript code.

    CPUTime

    int

    The total CPU time consumed by the request, in microseconds.

    DurationTime

    int

    The total execution time of the request within the EdgeRoutine, including sub-request wait time and I/O time. Unit: milliseconds.

    ErrorCode

    int

    The error code for code execution. A value of 0 indicates no error.

    ErrorMessage

    string

    The error description corresponding to the ErrorCode.

    EventType

    string

    The event type that triggered the function. Currently, only HTTP events are supported.

    ResponseSize

    int

    The total response size, in bytes.

    ResponseStatus

    int

    The response status code.

    RoutineName

    string

    The function name.

    RoutineSpec

    string

    The specifications of the EdgeRoutine.

    ClientASN

    string

    The Autonomous System Number (ASN) resolved from the client IP address.

    ClientIP

    string

    The IP address of the client.

    ClientISP

    string

    The ISP resolved from the client IP address.

    ClientProxyIP

    string

    The proxy IP address of the client.

    ClientRegionCode

    string

    The ISO 3166-2 code for the client's region, resolved from the client IP address.

    ClientSSLCipher

    string

    The SSL cipher suite used by the client.

    ClientSSLProtocol

    string

    The SSL protocol version used by the client.

    ClientSrcPort

    int

    The source port used by the client to connect to the node.

    ClientXRequestedWith

    string

    The value of the X-Requested-With HTTP header from the client request.

    ClientZoneCode

    string

    The ISO 3166-1 alpha-2 country code for the client's location, resolved from the client IP address.

    ClientRequestBytes

    int

    The size of the client request, in bytes.

    ClientRequestHeaderRange

    string

    The value of the Range header in the client request. Example: bytes=0-100.

    ClientRequestHost

    string

    The host in the client request.

    ClientRequestMethod

    string

    The HTTP method used in the client request.

    ClientRequestPath

    string

    The request path from the client.

    ClientRequestProtocol

    string

    The protocol used in the client request.

    ClientRequestReferer

    string

    The referer header from the client request.

    ClientRequestScheme

    string

    The URL scheme of the client request.

    ClientRequestURI

    string

    The URI of the client request.

    ClientRequestUserAgent

    string

    The user agent string from the client request.

    EdgeResponseStatusCode

    int

    The status code that the ESA node returns to the client.