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Fix comparison with disk_consistent_lsn in newer_image_layer_exists (#1167)

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Konstantin Knizhnik
2022-01-24 12:19:18 +03:00
committed by GitHub
parent 5f5a11525c
commit 7bc1274a03
1 changed files with 6 additions and 1 deletions
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7
pageserver/src/layered_repository/layer_map.rs
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@@ -321,9 +321,14 @@ impl SegEntry {
// We only check on-disk layers, because
// in-memory layers are not durable
// The end-LSN is exclusive, while disk_consistent_lsn is
// inclusive. For example, if disk_consistent_lsn is 100, it is
// OK for a delta layer to have end LSN 101, but if the end LSN
// is 102, then it might not have been fully flushed to disk
// before crash.
self.historic
.iter_newer(lsn)
.any(|layer| !layer.is_incremental() && layer.get_end_lsn() <= disk_consistent_lsn)
.any(|layer| !layer.is_incremental() && layer.get_end_lsn() <= disk_consistent_lsn + 1)
}
// Set new open layer for a SegEntry.