feat: clean up AuthDB refresh tokens by dropping partitions#929
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chrisburr wants to merge 1 commit into
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feat: clean up AuthDB refresh tokens by dropping partitions#929chrisburr wants to merge 1 commit into
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Replace the row-level DELETE sweeps for the RefreshTokens table with maintenance of its monthly JTI range-partitions: drop partitions whose whole month is older than the retention horizon, and add partitions ahead of time so the p_future catch-all never fills. Dropping a partition is an O(1) metadata operation and avoids the row-lock and lock-memory cost of large DELETEs. Retention is now expressed in calendar months via the new DIRACX_SERVICE_AUTH_REFRESH_TOKEN_RETENTION_MONTHS setting (default 6), replacing revoked_refresh_token_retention_minutes. Partition maintenance is implemented for MySQL only and raises NotImplementedError for other dialects. The unpartitioned flow tables keep their existing DELETE-based cleanup.
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Replace the row-level DELETE sweeps for the RefreshTokens table with maintenance of its monthly JTI range-partitions: drop partitions whose whole month is older than the retention horizon, and add partitions ahead of time so the p_future catch-all never fills. Dropping a partition is an O(1) metadata operation and avoids the row-lock and lock-memory cost of large DELETEs.
Retention is now expressed in calendar months via the new
DIRACX_SERVICE_AUTH_REFRESH_TOKEN_RETENTION_MONTHSsetting (default 6), replacing revoked_refresh_token_retention_minutes. Partition maintenance is implemented for MySQL only and raises NotImplementedError for other dialects. The unpartitioned flow tables keep their existing DELETE-based cleanup.Fixes #928