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Lock in sorted order

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This commit is contained in:
Bojan Serafimov
2022-06-27 15:32:05 -04:00
parent 93e050afe3
commit 44feda0061
1 changed files with 5 additions and 1 deletions
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6
pageserver/src/layered_repository.rs
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@@ -337,12 +337,16 @@ impl Repository for LayeredRepository {
// compactions. We don't want to block everything else while the
// compaction runs.
let timelines = self.timelines.lock().unwrap();
let timelines_to_compact = timelines
let mut timelines_to_compact = timelines
.iter()
.map(|(timelineid, timeline)| (*timelineid, timeline.clone()))
.collect::<Vec<_>>();
drop(timelines);
// Sort to prevent deadlock
timelines_to_compact.sort_by(|a, b| a.0.cmp(&b.0));
// Compact all timelines in order
for (timelineid, timeline) in &timelines_to_compact {
let _entered =
info_span!("compact", timeline = %timelineid, tenant = %self.tenant_id).entered();