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docs: explain how to configure deletedFileRetentionDuration - #4832
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Signed-off-by: Shahzeb Ali <[email protected]>
Shahzeb-DataEngineer
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ion-elgreco and
rtyler
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October 7, 2026 19:10
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adamreeve
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Oct 7, 2026
Replace the blanket 7-day recommendation with guidance matching the official Delta Lake table properties docs: the retention window should be longer than the longest-running job or streaming query against the table, since concurrent readers or writers may still reference files that VACUUM would then delete. Signed-off-by: Shahzeb Ali <[email protected]>
adamreeve
approved these changes
Oct 8, 2026
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Description
Documents how to configure the
delta.deletedFileRetentionDurationtable property, which controls the vacuum retention window.docs/usage/managing-tables.md, with examples for setting it at table creation (write_deltalake(..., configuration=...)) and on existing tables (dt.alter.set_table_properties(...)), plus a note on the 7-day minimum.retention_hoursparameter in theDeltaTable.vacuum()docstring to point at the table property.Related Issue(s)