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Elastic MapReduce
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    Quotas and Limits

    Last updated: 2024-11-28 16:22:15
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    To ensure the normal operation of EMR Serverless HBase instances, read the following content carefully before use.

    Quota Description

    Object
    Quota
    Number of nodes per instance
    Default limit is 50. To increase, you can submit a ticket for consultation.
    Data storage volume per node
    Data storage volume per node = number of node CPU cores × 250. For example, for an 8-core 16 GB node, the data storage volume is 2,000 GiB (8 × 250 GiB).

    Restrictions

    Object
    Suggested Limits
    Hard Limits
    Number of tables per instance
    Suggested to be within 1,000, not mandatory
    -
    Data size in table
    Number of column families per table: 10 Single row key: 1 KB Column family: 10 B Single column qualifier: 100 B Single value in a table cell: 1 MB All values in a row: 100 MB
    Single row key: 64 KB Column qualifier family: 64 KB Single column qualifier: 64 KB Single value in a table cell: 10 MB All values in a row: 1 GB
    Number of rows in batch requests
    Suggested to be within 5,000, not mandatory
    -
    ID length limit
    Table name: 1-128 Column family: 1-16
    Instance name: 6-36
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