https://kylorend3r.github.io/tags/data-loss/Recent content in Data-Loss on kylorend3r Bloghttps://kylorend3r.github.io/og-image.pnghttps://kylorend3r.github.io/og-image.pngHugo -- 0.146.0en-usWed, 02 Sep 2026 00:00:00 +0000https://kylorend3r.github.io/posts/postgresql-subscriber-silent-row-loss-after-pg-upgrade/Wed, 02 Sep 2026 00:00:00 +0000https://kylorend3r.github.io/posts/postgresql-subscriber-silent-row-loss-after-pg-upgrade/A pg_upgrade of a logical replication subscriber that reported success, a subscription that came back with a running apply worker and zero lag, and a few hundred committed rows that were received, discarded and acknowledged as applied. This is the operation, the symptom, the fix, and then the mechanism: an empty pg_subscription_rel, traced step by step through the apply worker source.