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Alternator: missing TableSizeBytes field in return of DescribeTable #7551

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nyh opened this issue Nov 4, 2020 · 0 comments
Open

Alternator: missing TableSizeBytes field in return of DescribeTable #7551

nyh opened this issue Nov 4, 2020 · 0 comments
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@nyh
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nyh commented Nov 4, 2020

The return from DescribeTable is missing the TableSizeBytes field. According to DynamoDB documentation, TableSizeBytes should have:

The total size of the specified table, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.

This estimate is available to us separately for each node, but the question is how do we sum it up for all nodes. Do we do this during the query, or periodically? What to do when some of the nodes are down?

We have an xfailing trivial test for this feature: test_describe_table.py::test_describe_table_size.
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