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bottomless: don't snapshot empty db files #730

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Oct 4, 2023
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bottomless: don't snapshot empty db files #730

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10 changes: 7 additions & 3 deletions bottomless/src/replicator.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1095,13 +1095,17 @@ impl Replicator {
if let Ok(page_size) = Self::read_page_size(&mut db).await {
self.set_page_size(page_size)?;
}
// if database file exists always treat it as new and more up to date, skipping the
// restoration process and calling for a new generation to be made
return Ok(Some(RestoreAction::SnapshotMainDbFile));
Self::read_change_counter(&mut db).await.unwrap_or([0u8; 4])
}
Err(_) => [0u8; 4],
};

if local_counter != [0u8; 4] {
// if a non-empty database file exists always treat it as new and more up to date,
// skipping the restoration process and calling for a new generation to be made
return Ok(Some(RestoreAction::SnapshotMainDbFile));
}

let remote_counter = self.get_remote_change_counter(&generation).await?;
tracing::debug!("Counters: l={:?}, r={:?}", local_counter, remote_counter);

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