forked from Deuxfleurs/garage
Better prints again, and a great question
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2 changed files with 11 additions and 4 deletions
2
TODO
2
TODO
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@ -5,6 +5,8 @@ Replication
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- every node watches the current ring and state of the network
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- and thus determines the interval of tokens for which they are responsible
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How are we going to test that our replication method works correctly?
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We will have to introduce lots of dummy data and then add/remove nodes many times.
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To do list
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@ -149,9 +149,8 @@ impl<F: TableSchema + 'static> TableSyncer<F> {
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}
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async fn sync_partition(self: Arc<Self>, partition: &Partition, must_exit: &mut watch::Receiver<bool>) -> Result<(), Error> {
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eprintln!("({}) Calculating root checksum for {:?}...", self.table.name, partition);
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eprintln!("({}) Preparing to sync {:?}...", self.table.name, partition);
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let root_cks = self.root_checksum(&partition.begin, &partition.end, must_exit).await?;
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eprintln!("({}) Root checksum for {:?}: {:?}", self.table.name, partition, root_cks);
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let nodes = self.table.system.ring.borrow().clone().walk_ring(&partition.begin, self.table.param.replication_factor);
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let mut sync_futures = nodes.iter()
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@ -196,9 +195,14 @@ impl<F: TableSchema + 'static> TableSyncer<F> {
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drop(cache);
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let v = self.range_checksum_inner(&range, must_exit).await?;
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eprintln!("({}) New checksum calculated for {}-{}/{}, {} children",
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self.table.name,
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hex::encode(&range.begin[..]),
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hex::encode(&range.end[..]),
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range.level,
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v.children.len());
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let mut cache = self.cache[range.level].lock().await;
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eprintln!("({}) Checksum for {:?}: {:?}", self.table.name, range, v);
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cache.insert(range.clone(), v.clone());
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Ok(v)
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}.boxed()
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@ -281,7 +285,8 @@ impl<F: TableSchema + 'static> TableSyncer<F> {
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todo.push_back(root_ck);
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while !todo.is_empty() && !*must_exit.borrow() {
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eprintln!("({}) Sync with {:?}: {} remaining", self.table.name, who, todo.len());
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let total_children = todo.iter().map(|x| x.children.len()).fold(0, |x, y| x + y);
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eprintln!("({}) Sync with {:?}: {} ({}) remaining", self.table.name, who, todo.len(), total_children);
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let end = std::cmp::min(16, todo.len());
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let step = todo.drain(..end).collect::<Vec<_>>();
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