Last updated: 2021-01-13 14:31:19

    SCF has certain quota limits for each user account.

    Quota Limits

    The quota limits for each user account are as follows:

    Item Default Quota Limit
    Maximum number of functions per namespace per region 50
    Total function concurrency quota per region 128,000 MB
    Maximum number of triggers per function 10
    Maximum number of same-type triggers per function 10
    Maximum code size (including bound layers) per function (version) 500 MB
    Total function code size per region 100 GB
    Maximum environment variable size per function 4 KB

    Note:

    • SCF currently supports 10,000-level concurrency, which can effectively support scenarios with high concurrency demand such as ecommerce promotions and parallel processing of medical and biological data.
    • The total function concurrency quota per region on the SCF platform is 128,000 MB, which is shared by all functions by default. You can customize the concurrency for specific functions to meet your actual needs. To request an increase in the quota, please submit a ticket to apply.

    The limits for the function runtime environment are as follows:

    Item Quota Limit
    Allocated memory Minimum: 64 MB, maximum: 3,072 MB, in increments of 128 MB starting from 128 MB
    Temporary cache space; i.e., size of the /tmp directory 512 MB
    Timeout period Minimum: 1 second, maximum: 900 seconds
    Number of file descriptors 1,024
    Total processes and threads 1,024
    Sync request event size 6 MB
    Sync request response size 6 MB
    Async request event size 128 KB

    Note:

    If the size of a Base64-encoded file is below 6 MB, you can pass the encoded file to SCF through API Gateway. Otherwise, we recommend you upload the file to COS and pass the object address to SCF first. Then, SCF will pull the file from COS to complete the upload.

    Limit Increase

    Currently, the limits that can be increased include:

    • Maximum number of functions
    • Total function concurrency quota per region
    • Maximum number of triggers per function
    • Maximum code size per function
    • Total function code size per region

    To increase the limits, please submit a ticket and state the items you want to increase and to what quantities you want to increase them to.

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