Unverified50% confidenceFactExact time
Slot lag is a typical operational problem in PostgreSQL logical replication: a logical replication slot retains WAL logs on the primary until the subscriber confirms consumption, and lagging or disconnected subscribers cause WAL to keep accumulating on the primary, bloating the disk and even filling up the primary.
1
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50%
Confidence
Long-term
Relevance
10/19/2026
First Seen
Sources
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