Rename garage_core to garage_model

9 files changed, 0 insertions, 1402 deletions

diff --git a/src/core/Cargo.toml b/src/core/Cargo.toml
deleted file mode 100644
index 1e482d87..00000000
--- a/src/core/Cargo.toml
+++ /dev/null
@@ -1,34 +0,0 @@
-[package]
-name = "garage_core"
-version = "0.1.0"
-authors = ["Alex Auvolat <alex@adnab.me>"]
-edition = "2018"
-
-[lib]
-path = "lib.rs"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-garage_util = { path = "../util" }
-garage_rpc = { path = "../rpc" }
-garage_table = { path = "../table" }
-
-bytes = "0.4"
-rand = "0.7"
-hex = "0.3"
-sha2 = "0.8"
-arc-swap = "0.4"
-log = "0.4"
-
-sled = "0.31"
-
-rmp-serde = "0.14.3"
-serde = { version = "1.0", default-features = false, features = ["derive", "rc"] }
-serde_bytes = "0.11"
-
-async-trait = "0.1.30"
-futures = "0.3"
-futures-util = "0.3"
-tokio = { version = "0.2", default-features = false, features = ["rt-core", "rt-threaded", "io-driver", "net", "tcp", "time", "macros", "sync", "signal", "fs"] }
-
diff --git a/src/core/block.rs b/src/core/block.rs
deleted file mode 100644
index af8b9efb..00000000
--- a/src/core/block.rs
+++ /dev/null
@@ -1,506 +0,0 @@
-use std::path::PathBuf;
-use std::sync::Arc;
-use std::time::Duration;
-
-use arc_swap::ArcSwapOption;
-use futures::future::*;
-use futures::select;
-use futures::stream::*;
-use serde::{Deserialize, Serialize};
-use tokio::fs;
-use tokio::prelude::*;
-use tokio::sync::{watch, Mutex, Notify};
-
-use garage_util::data;
-use garage_util::data::*;
-use garage_util::error::Error;
-
-use garage_rpc::membership::System;
-use garage_rpc::rpc_client::*;
-use garage_rpc::rpc_server::*;
-
-use garage_table::table_sharded::TableShardedReplication;
-use garage_table::TableReplication;
-
-use crate::block_ref_table::*;
-
-use crate::garage::Garage;
-
-pub const INLINE_THRESHOLD: usize = 3072;
-
-const BLOCK_RW_TIMEOUT: Duration = Duration::from_secs(42);
-const NEED_BLOCK_QUERY_TIMEOUT: Duration = Duration::from_secs(5);
-const RESYNC_RETRY_TIMEOUT: Duration = Duration::from_secs(10);
-
-#[derive(Debug, Serialize, Deserialize)]
-pub enum Message {
-	Ok,
-	GetBlock(Hash),
-	PutBlock(PutBlockMessage),
-	NeedBlockQuery(Hash),
-	NeedBlockReply(bool),
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-pub struct PutBlockMessage {
-	pub hash: Hash,
-
-	#[serde(with = "serde_bytes")]
-	pub data: Vec<u8>,
-}
-
-impl RpcMessage for Message {}
-
-pub struct BlockManager {
-	pub replication: TableShardedReplication,
-	pub data_dir: PathBuf,
-	pub data_dir_lock: Mutex<()>,
-
-	pub rc: sled::Tree,
-
-	pub resync_queue: sled::Tree,
-	pub resync_notify: Notify,
-
-	pub system: Arc<System>,
-	rpc_client: Arc<RpcClient<Message>>,
-	pub garage: ArcSwapOption<Garage>,
-}
-
-impl BlockManager {
-	pub fn new(
-		db: &sled::Db,
-		data_dir: PathBuf,
-		replication: TableShardedReplication,
-		system: Arc<System>,
-		rpc_server: &mut RpcServer,
-	) -> Arc<Self> {
-		let rc = db
-			.open_tree("block_local_rc")
-			.expect("Unable to open block_local_rc tree");
-		rc.set_merge_operator(rc_merge);
-
-		let resync_queue = db
-			.open_tree("block_local_resync_queue")
-			.expect("Unable to open block_local_resync_queue tree");
-
-		let rpc_path = "block_manager";
-		let rpc_client = system.rpc_client::<Message>(rpc_path);
-
-		let block_manager = Arc::new(Self {
-			replication,
-			data_dir,
-			data_dir_lock: Mutex::new(()),
-			rc,
-			resync_queue,
-			resync_notify: Notify::new(),
-			system,
-			rpc_client,
-			garage: ArcSwapOption::from(None),
-		});
-		block_manager
-			.clone()
-			.register_handler(rpc_server, rpc_path.into());
-		block_manager
-	}
-
-	fn register_handler(self: Arc<Self>, rpc_server: &mut RpcServer, path: String) {
-		let self2 = self.clone();
-		rpc_server.add_handler::<Message, _, _>(path, move |msg, _addr| {
-			let self2 = self2.clone();
-			async move { self2.handle(&msg).await }
-		});
-
-		let self2 = self.clone();
-		self.rpc_client
-			.set_local_handler(self.system.id, move |msg| {
-				let self2 = self2.clone();
-				async move { self2.handle(&msg).await }
-			});
-	}
-
-	async fn handle(self: Arc<Self>, msg: &Message) -> Result<Message, Error> {
-		match msg {
-			Message::PutBlock(m) => self.write_block(&m.hash, &m.data).await,
-			Message::GetBlock(h) => self.read_block(h).await,
-			Message::NeedBlockQuery(h) => self.need_block(h).await.map(Message::NeedBlockReply),
-			_ => Err(Error::BadRequest(format!("Unexpected RPC message"))),
-		}
-	}
-
-	pub async fn spawn_background_worker(self: Arc<Self>) {
-		// Launch 2 simultaneous workers for background resync loop preprocessing
-		for i in 0..2usize {
-			let bm2 = self.clone();
-			let background = self.system.background.clone();
-			tokio::spawn(async move {
-				tokio::time::delay_for(Duration::from_secs(10)).await;
-				background
-					.spawn_worker(format!("block resync worker {}", i), move |must_exit| {
-						bm2.resync_loop(must_exit)
-					})
-					.await;
-			});
-		}
-	}
-
-	pub async fn write_block(&self, hash: &Hash, data: &[u8]) -> Result<Message, Error> {
-		let _lock = self.data_dir_lock.lock().await;
-
-		let mut path = self.block_dir(hash);
-		fs::create_dir_all(&path).await?;
-
-		path.push(hex::encode(hash));
-		if fs::metadata(&path).await.is_ok() {
-			return Ok(Message::Ok);
-		}
-
-		let mut f = fs::File::create(path).await?;
-		f.write_all(data).await?;
-		drop(f);
-
-		Ok(Message::Ok)
-	}
-
-	pub async fn read_block(&self, hash: &Hash) -> Result<Message, Error> {
-		let path = self.block_path(hash);
-
-		let mut f = match fs::File::open(&path).await {
-			Ok(f) => f,
-			Err(e) => {
-				// Not found but maybe we should have had it ??
-				self.put_to_resync(hash, 0)?;
-				return Err(Into::into(e));
-			}
-		};
-		let mut data = vec![];
-		f.read_to_end(&mut data).await?;
-		drop(f);
-
-		if data::hash(&data[..]) != *hash {
-			let _lock = self.data_dir_lock.lock().await;
-			warn!("Block {:?} is corrupted. Deleting and resyncing.", hash);
-			fs::remove_file(path).await?;
-			self.put_to_resync(&hash, 0)?;
-			return Err(Error::CorruptData(*hash));
-		}
-
-		Ok(Message::PutBlock(PutBlockMessage { hash: *hash, data }))
-	}
-
-	pub async fn need_block(&self, hash: &Hash) -> Result<bool, Error> {
-		let needed = self
-			.rc
-			.get(hash.as_ref())?
-			.map(|x| u64_from_bytes(x.as_ref()) > 0)
-			.unwrap_or(false);
-		if needed {
-			let path = self.block_path(hash);
-			let exists = fs::metadata(&path).await.is_ok();
-			Ok(!exists)
-		} else {
-			Ok(false)
-		}
-	}
-
-	fn block_dir(&self, hash: &Hash) -> PathBuf {
-		let mut path = self.data_dir.clone();
-		path.push(hex::encode(&hash.as_slice()[0..1]));
-		path.push(hex::encode(&hash.as_slice()[1..2]));
-		path
-	}
-	fn block_path(&self, hash: &Hash) -> PathBuf {
-		let mut path = self.block_dir(hash);
-		path.push(hex::encode(hash.as_ref()));
-		path
-	}
-
-	pub fn block_incref(&self, hash: &Hash) -> Result<(), Error> {
-		let old_rc = self.rc.get(&hash)?;
-		self.rc.merge(&hash, vec![1])?;
-		if old_rc.map(|x| u64_from_bytes(&x[..]) == 0).unwrap_or(true) {
-			self.put_to_resync(&hash, BLOCK_RW_TIMEOUT.as_millis() as u64)?;
-		}
-		Ok(())
-	}
-
-	pub fn block_decref(&self, hash: &Hash) -> Result<(), Error> {
-		let new_rc = self.rc.merge(&hash, vec![0])?;
-		if new_rc.map(|x| u64_from_bytes(&x[..]) == 0).unwrap_or(true) {
-			self.put_to_resync(&hash, 0)?;
-		}
-		Ok(())
-	}
-
-	fn put_to_resync(&self, hash: &Hash, delay_millis: u64) -> Result<(), Error> {
-		let when = now_msec() + delay_millis;
-		trace!("Put resync_queue: {} {:?}", when, hash);
-		let mut key = u64::to_be_bytes(when).to_vec();
-		key.extend(hash.as_ref());
-		self.resync_queue.insert(key, hash.as_ref())?;
-		self.resync_notify.notify();
-		Ok(())
-	}
-
-	async fn resync_loop(
-		self: Arc<Self>,
-		mut must_exit: watch::Receiver<bool>,
-	) -> Result<(), Error> {
-		let mut n_failures = 0usize;
-		while !*must_exit.borrow() {
-			if let Some((time_bytes, hash_bytes)) = self.resync_queue.pop_min()? {
-				let time_msec = u64_from_bytes(&time_bytes[0..8]);
-				let now = now_msec();
-				if now >= time_msec {
-					let mut hash = [0u8; 32];
-					hash.copy_from_slice(hash_bytes.as_ref());
-					let hash = Hash::from(hash);
-
-					if let Err(e) = self.resync_iter(&hash).await {
-						warn!("Failed to resync block {:?}, retrying later: {}", hash, e);
-						self.put_to_resync(&hash, RESYNC_RETRY_TIMEOUT.as_millis() as u64)?;
-						n_failures += 1;
-						if n_failures >= 10 {
-							warn!("Too many resync failures, throttling.");
-							tokio::time::delay_for(Duration::from_secs(1)).await;
-						}
-					} else {
-						n_failures = 0;
-					}
-				} else {
-					self.resync_queue.insert(time_bytes, hash_bytes)?;
-					let delay = tokio::time::delay_for(Duration::from_millis(time_msec - now));
-					select! {
-						_ = delay.fuse() => (),
-						_ = self.resync_notify.notified().fuse() => (),
-						_ = must_exit.recv().fuse() => (),
-					}
-				}
-			} else {
-				select! {
-					_ = self.resync_notify.notified().fuse() => (),
-					_ = must_exit.recv().fuse() => (),
-				}
-			}
-		}
-		Ok(())
-	}
-
-	async fn resync_iter(&self, hash: &Hash) -> Result<(), Error> {
-		let path = self.block_path(hash);
-
-		let exists = fs::metadata(&path).await.is_ok();
-		let needed = self
-			.rc
-			.get(hash.as_ref())?
-			.map(|x| u64_from_bytes(x.as_ref()) > 0)
-			.unwrap_or(false);
-
-		if exists != needed {
-			info!(
-				"Resync block {:?}: exists {}, needed {}",
-				hash, exists, needed
-			);
-		}
-
-		if exists && !needed {
-			let garage = self.garage.load_full().unwrap();
-			let active_refs = garage
-				.block_ref_table
-				.get_range(&hash, None, Some(()), 1)
-				.await?;
-			let needed_by_others = !active_refs.is_empty();
-			if needed_by_others {
-				let ring = self.system.ring.borrow().clone();
-				let who = self.replication.replication_nodes(&hash, &ring);
-				let msg = Arc::new(Message::NeedBlockQuery(*hash));
-				let who_needs_fut = who.iter().map(|to| {
-					self.rpc_client
-						.call_arc(*to, msg.clone(), NEED_BLOCK_QUERY_TIMEOUT)
-				});
-				let who_needs = join_all(who_needs_fut).await;
-
-				let mut need_nodes = vec![];
-				for (node, needed) in who.into_iter().zip(who_needs.iter()) {
-					match needed {
-						Ok(Message::NeedBlockReply(needed)) => {
-							if *needed {
-								need_nodes.push(node);
-							}
-						}
-						Err(e) => {
-							return Err(Error::Message(format!(
-								"Should delete block, but unable to confirm that all other nodes that need it have it: {}",
-								e
-							)));
-						}
-						Ok(_) => {
-							return Err(Error::Message(format!(
-								"Unexpected response to NeedBlockQuery RPC"
-							)));
-						}
-					}
-				}
-
-				if need_nodes.len() > 0 {
-					let put_block_message = self.read_block(hash).await?;
-					self.rpc_client
-						.try_call_many(
-							&need_nodes[..],
-							put_block_message,
-							RequestStrategy::with_quorum(need_nodes.len())
-								.with_timeout(BLOCK_RW_TIMEOUT),
-						)
-						.await?;
-				}
-			}
-			fs::remove_file(path).await?;
-			self.resync_queue.remove(&hash)?;
-		}
-
-		if needed && !exists {
-			// TODO find a way to not do this if they are sending it to us
-			// Let's suppose this isn't an issue for now with the BLOCK_RW_TIMEOUT delay
-			// between the RC being incremented and this part being called.
-			let block_data = self.rpc_get_block(&hash).await?;
-			self.write_block(hash, &block_data[..]).await?;
-		}
-
-		Ok(())
-	}
-
-	pub async fn rpc_get_block(&self, hash: &Hash) -> Result<Vec<u8>, Error> {
-		let who = self.replication.read_nodes(&hash, &self.system);
-		let resps = self
-			.rpc_client
-			.try_call_many(
-				&who[..],
-				Message::GetBlock(*hash),
-				RequestStrategy::with_quorum(1)
-					.with_timeout(BLOCK_RW_TIMEOUT)
-					.interrupt_after_quorum(true),
-			)
-			.await?;
-
-		for resp in resps {
-			if let Message::PutBlock(msg) = resp {
-				return Ok(msg.data);
-			}
-		}
-		Err(Error::Message(format!(
-			"Unable to read block {:?}: no valid blocks returned",
-			hash
-		)))
-	}
-
-	pub async fn rpc_put_block(&self, hash: Hash, data: Vec<u8>) -> Result<(), Error> {
-		let who = self.replication.write_nodes(&hash, &self.system);
-		self.rpc_client
-			.try_call_many(
-				&who[..],
-				Message::PutBlock(PutBlockMessage { hash, data }),
-				RequestStrategy::with_quorum(self.replication.write_quorum())
-					.with_timeout(BLOCK_RW_TIMEOUT),
-			)
-			.await?;
-		Ok(())
-	}
-
-	pub async fn repair_data_store(&self, must_exit: &watch::Receiver<bool>) -> Result<(), Error> {
-		// 1. Repair blocks from RC table
-		let garage = self.garage.load_full().unwrap();
-		let mut last_hash = None;
-		let mut i = 0usize;
-		for entry in garage.block_ref_table.store.iter() {
-			let (_k, v_bytes) = entry?;
-			let block_ref = rmp_serde::decode::from_read_ref::<_, BlockRef>(v_bytes.as_ref())?;
-			if Some(&block_ref.block) == last_hash.as_ref() {
-				continue;
-			}
-			if !block_ref.deleted {
-				last_hash = Some(block_ref.block);
-				self.put_to_resync(&block_ref.block, 0)?;
-			}
-			i += 1;
-			if i & 0xFF == 0 && *must_exit.borrow() {
-				return Ok(());
-			}
-		}
-
-		// 2. Repair blocks actually on disk
-		let mut ls_data_dir = fs::read_dir(&self.data_dir).await?;
-		while let Some(data_dir_ent) = ls_data_dir.next().await {
-			let data_dir_ent = data_dir_ent?;
-			let dir_name = data_dir_ent.file_name();
-			let dir_name = match dir_name.into_string() {
-				Ok(x) => x,
-				Err(_) => continue,
-			};
-			if dir_name.len() != 2 || hex::decode(&dir_name).is_err() {
-				continue;
-			}
-
-			let mut ls_data_dir_2 = match fs::read_dir(data_dir_ent.path()).await {
-				Err(e) => {
-					warn!(
-						"Warning: could not list dir {:?}: {}",
-						data_dir_ent.path().to_str(),
-						e
-					);
-					continue;
-				}
-				Ok(x) => x,
-			};
-			while let Some(file) = ls_data_dir_2.next().await {
-				let file = file?;
-				let file_name = file.file_name();
-				let file_name = match file_name.into_string() {
-					Ok(x) => x,
-					Err(_) => continue,
-				};
-				if file_name.len() != 64 {
-					continue;
-				}
-				let hash_bytes = match hex::decode(&file_name) {
-					Ok(h) => h,
-					Err(_) => continue,
-				};
-				let mut hash = [0u8; 32];
-				hash.copy_from_slice(&hash_bytes[..]);
-				self.put_to_resync(&hash.into(), 0)?;
-
-				if *must_exit.borrow() {
-					return Ok(());
-				}
-			}
-		}
-		Ok(())
-	}
-}
-
-fn u64_from_bytes(bytes: &[u8]) -> u64 {
-	assert!(bytes.len() == 8);
-	let mut x8 = [0u8; 8];
-	x8.copy_from_slice(bytes);
-	u64::from_be_bytes(x8)
-}
-
-fn rc_merge(_key: &[u8], old: Option<&[u8]>, new: &[u8]) -> Option<Vec<u8>> {
-	let old = old.map(u64_from_bytes).unwrap_or(0);
-	assert!(new.len() == 1);
-	let new = match new[0] {
-		0 => {
-			if old > 0 {
-				old - 1
-			} else {
-				0
-			}
-		}
-		1 => old + 1,
-		_ => unreachable!(),
-	};
-	if new == 0 {
-		None
-	} else {
-		Some(u64::to_be_bytes(new).to_vec())
-	}
-}
diff --git a/src/core/block_ref_table.rs b/src/core/block_ref_table.rs
deleted file mode 100644
index a00438c0..00000000
--- a/src/core/block_ref_table.rs
+++ /dev/null
@@ -1,68 +0,0 @@
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-use std::sync::Arc;
-
-use garage_util::background::*;
-use garage_util::data::*;
-use garage_util::error::Error;
-
-use garage_table::*;
-
-use crate::block::*;
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct BlockRef {
-	// Primary key
-	pub block: Hash,
-
-	// Sort key
-	pub version: UUID,
-
-	// Keep track of deleted status
-	pub deleted: bool,
-}
-
-impl Entry<Hash, UUID> for BlockRef {
-	fn partition_key(&self) -> &Hash {
-		&self.block
-	}
-	fn sort_key(&self) -> &UUID {
-		&self.version
-	}
-
-	fn merge(&mut self, other: &Self) {
-		if other.deleted {
-			self.deleted = true;
-		}
-	}
-}
-
-pub struct BlockRefTable {
-	pub background: Arc<BackgroundRunner>,
-	pub block_manager: Arc<BlockManager>,
-}
-
-#[async_trait]
-impl TableSchema for BlockRefTable {
-	type P = Hash;
-	type S = UUID;
-	type E = BlockRef;
-	type Filter = ();
-
-	async fn updated(&self, old: Option<Self::E>, new: Option<Self::E>) -> Result<(), Error> {
-		let block = &old.as_ref().or(new.as_ref()).unwrap().block;
-		let was_before = old.as_ref().map(|x| !x.deleted).unwrap_or(false);
-		let is_after = new.as_ref().map(|x| !x.deleted).unwrap_or(false);
-		if is_after && !was_before {
-			self.block_manager.block_incref(block)?;
-		}
-		if was_before && !is_after {
-			self.block_manager.block_decref(block)?;
-		}
-		Ok(())
-	}
-
-	fn matches_filter(entry: &Self::E, _filter: &Self::Filter) -> bool {
-		!entry.deleted
-	}
-}
diff --git a/src/core/bucket_table.rs b/src/core/bucket_table.rs
deleted file mode 100644
index 28234d82..00000000
--- a/src/core/bucket_table.rs
+++ /dev/null
@@ -1,121 +0,0 @@
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-
-use garage_table::*;
-use garage_util::error::Error;
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct Bucket {
-	// Primary key
-	pub name: String,
-
-	// Timestamp and deletion
-	// Upon version increment, all info is replaced
-	pub timestamp: u64,
-	pub deleted: bool,
-
-	// Authorized keys
-	authorized_keys: Vec<AllowedKey>,
-}
-
-impl Bucket {
-	pub fn new(
-		name: String,
-		timestamp: u64,
-		deleted: bool,
-		authorized_keys: Vec<AllowedKey>,
-	) -> Self {
-		let mut ret = Bucket {
-			name,
-			timestamp,
-			deleted,
-			authorized_keys: vec![],
-		};
-		for key in authorized_keys {
-			ret.add_key(key)
-				.expect("Duplicate AllowedKey in Bucket constructor");
-		}
-		ret
-	}
-	/// Add a key only if it is not already present
-	pub fn add_key(&mut self, key: AllowedKey) -> Result<(), ()> {
-		match self
-			.authorized_keys
-			.binary_search_by(|k| k.key_id.cmp(&key.key_id))
-		{
-			Err(i) => {
-				self.authorized_keys.insert(i, key);
-				Ok(())
-			}
-			Ok(_) => Err(()),
-		}
-	}
-	pub fn authorized_keys(&self) -> &[AllowedKey] {
-		&self.authorized_keys[..]
-	}
-	pub fn clear_keys(&mut self) {
-		self.authorized_keys.clear();
-	}
-}
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct AllowedKey {
-	pub key_id: String,
-	pub timestamp: u64,
-	pub allow_read: bool,
-	pub allow_write: bool,
-}
-
-impl Entry<EmptyKey, String> for Bucket {
-	fn partition_key(&self) -> &EmptyKey {
-		&EmptyKey
-	}
-	fn sort_key(&self) -> &String {
-		&self.name
-	}
-
-	fn merge(&mut self, other: &Self) {
-		if other.timestamp < self.timestamp {
-			*self = other.clone();
-			return;
-		}
-		if self.timestamp > other.timestamp || self.deleted {
-			return;
-		}
-
-		for ak in other.authorized_keys.iter() {
-			match self
-				.authorized_keys
-				.binary_search_by(|our_ak| our_ak.key_id.cmp(&ak.key_id))
-			{
-				Ok(i) => {
-					let our_ak = &mut self.authorized_keys[i];
-					if ak.timestamp > our_ak.timestamp {
-						*our_ak = ak.clone();
-					}
-				}
-				Err(i) => {
-					self.authorized_keys.insert(i, ak.clone());
-				}
-			}
-		}
-	}
-}
-
-pub struct BucketTable;
-
-#[async_trait]
-impl TableSchema for BucketTable {
-	type P = EmptyKey;
-	type S = String;
-	type E = Bucket;
-	type Filter = ();
-
-	async fn updated(&self, _old: Option<Self::E>, _new: Option<Self::E>) -> Result<(), Error> {
-		Ok(())
-	}
-
-	fn matches_filter(entry: &Self::E, _filter: &Self::Filter) -> bool {
-		!entry.deleted
-	}
-}
diff --git a/src/core/garage.rs b/src/core/garage.rs
deleted file mode 100644
index 46e0d02f..00000000
--- a/src/core/garage.rs
+++ /dev/null
@@ -1,166 +0,0 @@
-use std::sync::Arc;
-
-use garage_util::background::*;
-use garage_util::config::*;
-
-use garage_rpc::membership::System;
-use garage_rpc::rpc_client::RpcHttpClient;
-use garage_rpc::rpc_server::RpcServer;
-
-use garage_table::table_fullcopy::*;
-use garage_table::table_sharded::*;
-use garage_table::*;
-
-use crate::block::*;
-use crate::block_ref_table::*;
-use crate::bucket_table::*;
-use crate::key_table::*;
-use crate::object_table::*;
-use crate::version_table::*;
-
-pub struct Garage {
-	pub config: Config,
-
-	pub db: sled::Db,
-	pub background: Arc<BackgroundRunner>,
-	pub system: Arc<System>,
-	pub block_manager: Arc<BlockManager>,
-
-	pub bucket_table: Arc<Table<BucketTable, TableFullReplication>>,
-	pub key_table: Arc<Table<KeyTable, TableFullReplication>>,
-
-	pub object_table: Arc<Table<ObjectTable, TableShardedReplication>>,
-	pub version_table: Arc<Table<VersionTable, TableShardedReplication>>,
-	pub block_ref_table: Arc<Table<BlockRefTable, TableShardedReplication>>,
-}
-
-impl Garage {
-	pub async fn new(
-		config: Config,
-		db: sled::Db,
-		background: Arc<BackgroundRunner>,
-		rpc_server: &mut RpcServer,
-	) -> Arc<Self> {
-		info!("Initialize membership management system...");
-		let rpc_http_client = Arc::new(
-			RpcHttpClient::new(config.max_concurrent_rpc_requests, &config.rpc_tls)
-				.expect("Could not create RPC client"),
-		);
-		let system = System::new(
-			config.metadata_dir.clone(),
-			rpc_http_client,
-			background.clone(),
-			rpc_server,
-		);
-
-		let data_rep_param = TableShardedReplication {
-			replication_factor: config.data_replication_factor,
-			write_quorum: (config.data_replication_factor + 1) / 2,
-			read_quorum: 1,
-		};
-
-		let meta_rep_param = TableShardedReplication {
-			replication_factor: config.meta_replication_factor,
-			write_quorum: (config.meta_replication_factor + 1) / 2,
-			read_quorum: (config.meta_replication_factor + 1) / 2,
-		};
-
-		let control_rep_param = TableFullReplication::new(
-			config.meta_epidemic_fanout,
-			(config.meta_epidemic_fanout + 1) / 2,
-		);
-
-		info!("Initialize block manager...");
-		let block_manager = BlockManager::new(
-			&db,
-			config.data_dir.clone(),
-			data_rep_param.clone(),
-			system.clone(),
-			rpc_server,
-		);
-
-		info!("Initialize block_ref_table...");
-		let block_ref_table = Table::new(
-			BlockRefTable {
-				background: background.clone(),
-				block_manager: block_manager.clone(),
-			},
-			data_rep_param.clone(),
-			system.clone(),
-			&db,
-			"block_ref".to_string(),
-			rpc_server,
-		)
-		.await;
-
-		info!("Initialize version_table...");
-		let version_table = Table::new(
-			VersionTable {
-				background: background.clone(),
-				block_ref_table: block_ref_table.clone(),
-			},
-			meta_rep_param.clone(),
-			system.clone(),
-			&db,
-			"version".to_string(),
-			rpc_server,
-		)
-		.await;
-
-		info!("Initialize object_table...");
-		let object_table = Table::new(
-			ObjectTable {
-				background: background.clone(),
-				version_table: version_table.clone(),
-			},
-			meta_rep_param.clone(),
-			system.clone(),
-			&db,
-			"object".to_string(),
-			rpc_server,
-		)
-		.await;
-
-		info!("Initialize bucket_table...");
-		let bucket_table = Table::new(
-			BucketTable,
-			control_rep_param.clone(),
-			system.clone(),
-			&db,
-			"bucket".to_string(),
-			rpc_server,
-		)
-		.await;
-
-		info!("Initialize key_table_table...");
-		let key_table = Table::new(
-			KeyTable,
-			control_rep_param.clone(),
-			system.clone(),
-			&db,
-			"key".to_string(),
-			rpc_server,
-		)
-		.await;
-
-		info!("Initialize Garage...");
-		let garage = Arc::new(Self {
-			config,
-			db,
-			system: system.clone(),
-			block_manager,
-			background,
-			bucket_table,
-			key_table,
-			object_table,
-			version_table,
-			block_ref_table,
-		});
-
-		info!("Start block manager background thread...");
-		garage.block_manager.garage.swap(Some(garage.clone()));
-		garage.block_manager.clone().spawn_background_worker().await;
-
-		garage
-	}
-}
diff --git a/src/core/key_table.rs b/src/core/key_table.rs
deleted file mode 100644
index 76d163b5..00000000
--- a/src/core/key_table.rs
+++ /dev/null
@@ -1,154 +0,0 @@
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-
-use garage_table::*;
-use garage_util::data::*;
-use garage_util::error::Error;
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct Key {
-	// Primary key
-	pub key_id: String,
-
-	// Associated secret key (immutable)
-	pub secret_key: String,
-
-	// Name
-	pub name: String,
-	pub name_timestamp: u64,
-
-	// Deletion
-	pub deleted: bool,
-
-	// Authorized keys
-	authorized_buckets: Vec<AllowedBucket>,
-}
-
-impl Key {
-	pub fn new(name: String, buckets: Vec<AllowedBucket>) -> Self {
-		let key_id = format!("GK{}", hex::encode(&rand::random::<[u8; 12]>()[..]));
-		let secret_key = hex::encode(&rand::random::<[u8; 32]>()[..]);
-		let mut ret = Self {
-			key_id,
-			secret_key,
-			name,
-			name_timestamp: now_msec(),
-			deleted: false,
-			authorized_buckets: vec![],
-		};
-		for b in buckets {
-			ret.add_bucket(b)
-				.expect("Duplicate AllowedBucket in Key constructor");
-		}
-		ret
-	}
-	pub fn delete(key_id: String) -> Self {
-		Self {
-			key_id,
-			secret_key: "".into(),
-			name: "".into(),
-			name_timestamp: now_msec(),
-			deleted: true,
-			authorized_buckets: vec![],
-		}
-	}
-	/// Add an authorized bucket, only if it wasn't there before
-	pub fn add_bucket(&mut self, new: AllowedBucket) -> Result<(), ()> {
-		match self
-			.authorized_buckets
-			.binary_search_by(|b| b.bucket.cmp(&new.bucket))
-		{
-			Err(i) => {
-				self.authorized_buckets.insert(i, new);
-				Ok(())
-			}
-			Ok(_) => Err(()),
-		}
-	}
-	pub fn authorized_buckets(&self) -> &[AllowedBucket] {
-		&self.authorized_buckets[..]
-	}
-	pub fn clear_buckets(&mut self) {
-		self.authorized_buckets.clear();
-	}
-	pub fn allow_read(&self, bucket: &str) -> bool {
-		self.authorized_buckets
-			.iter()
-			.find(|x| x.bucket.as_str() == bucket)
-			.map(|x| x.allow_read)
-			.unwrap_or(false)
-	}
-	pub fn allow_write(&self, bucket: &str) -> bool {
-		self.authorized_buckets
-			.iter()
-			.find(|x| x.bucket.as_str() == bucket)
-			.map(|x| x.allow_write)
-			.unwrap_or(false)
-	}
-}
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct AllowedBucket {
-	pub bucket: String,
-	pub timestamp: u64,
-	pub allow_read: bool,
-	pub allow_write: bool,
-}
-
-impl Entry<EmptyKey, String> for Key {
-	fn partition_key(&self) -> &EmptyKey {
-		&EmptyKey
-	}
-	fn sort_key(&self) -> &String {
-		&self.key_id
-	}
-
-	fn merge(&mut self, other: &Self) {
-		if other.deleted {
-			self.deleted = true;
-		}
-		if self.deleted {
-			self.authorized_buckets.clear();
-			return;
-		}
-		if other.name_timestamp > self.name_timestamp {
-			self.name_timestamp = other.name_timestamp;
-			self.name = other.name.clone();
-		}
-
-		for ab in other.authorized_buckets.iter() {
-			match self
-				.authorized_buckets
-				.binary_search_by(|our_ab| our_ab.bucket.cmp(&ab.bucket))
-			{
-				Ok(i) => {
-					let our_ab = &mut self.authorized_buckets[i];
-					if ab.timestamp > our_ab.timestamp {
-						*our_ab = ab.clone();
-					}
-				}
-				Err(i) => {
-					self.authorized_buckets.insert(i, ab.clone());
-				}
-			}
-		}
-	}
-}
-
-pub struct KeyTable;
-
-#[async_trait]
-impl TableSchema for KeyTable {
-	type P = EmptyKey;
-	type S = String;
-	type E = Key;
-	type Filter = ();
-
-	async fn updated(&self, _old: Option<Self::E>, _new: Option<Self::E>) -> Result<(), Error> {
-		Ok(())
-	}
-
-	fn matches_filter(entry: &Self::E, _filter: &Self::Filter) -> bool {
-		!entry.deleted
-	}
-}
diff --git a/src/core/lib.rs b/src/core/lib.rs
deleted file mode 100644
index b4a8ddb7..00000000
--- a/src/core/lib.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-#[macro_use]
-extern crate log;
-
-pub mod block;
-pub mod block_ref_table;
-pub mod bucket_table;
-pub mod garage;
-pub mod key_table;
-pub mod object_table;
-pub mod version_table;
diff --git a/src/core/object_table.rs b/src/core/object_table.rs
deleted file mode 100644
index 01df70e6..00000000
--- a/src/core/object_table.rs
+++ /dev/null
@@ -1,198 +0,0 @@
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-use std::sync::Arc;
-
-use garage_util::background::BackgroundRunner;
-use garage_util::data::*;
-use garage_util::error::Error;
-
-use garage_table::table_sharded::*;
-use garage_table::*;
-
-use crate::version_table::*;
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct Object {
-	// Primary key
-	pub bucket: String,
-
-	// Sort key
-	pub key: String,
-
-	// Data
-	versions: Vec<ObjectVersion>,
-}
-
-impl Object {
-	pub fn new(bucket: String, key: String, versions: Vec<ObjectVersion>) -> Self {
-		let mut ret = Self {
-			bucket,
-			key,
-			versions: vec![],
-		};
-		for v in versions {
-			ret.add_version(v)
-				.expect("Twice the same ObjectVersion in Object constructor");
-		}
-		ret
-	}
-	/// Adds a version if it wasn't already present
-	pub fn add_version(&mut self, new: ObjectVersion) -> Result<(), ()> {
-		match self
-			.versions
-			.binary_search_by(|v| v.cmp_key().cmp(&new.cmp_key()))
-		{
-			Err(i) => {
-				self.versions.insert(i, new);
-				Ok(())
-			}
-			Ok(_) => Err(()),
-		}
-	}
-	pub fn versions(&self) -> &[ObjectVersion] {
-		&self.versions[..]
-	}
-}
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct ObjectVersion {
-	pub uuid: UUID,
-	pub timestamp: u64,
-
-	pub mime_type: String,
-	pub size: u64,
-	pub state: ObjectVersionState,
-
-	pub data: ObjectVersionData,
-}
-
-#[derive(PartialEq, Clone, Copy, Debug, Serialize, Deserialize)]
-pub enum ObjectVersionState {
-	Uploading,
-	Complete,
-	Aborted,
-}
-
-impl ObjectVersionState {
-	fn max(self, other: Self) -> Self {
-		use ObjectVersionState::*;
-		if self == Aborted || other == Aborted {
-			Aborted
-		} else if self == Complete || other == Complete {
-			Complete
-		} else {
-			Uploading
-		}
-	}
-}
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub enum ObjectVersionData {
-	Uploading,
-	DeleteMarker,
-	Inline(#[serde(with = "serde_bytes")] Vec<u8>),
-	FirstBlock(Hash),
-}
-
-impl ObjectVersion {
-	fn cmp_key(&self) -> (u64, UUID) {
-		(self.timestamp, self.uuid)
-	}
-	pub fn is_complete(&self) -> bool {
-		self.state == ObjectVersionState::Complete
-	}
-	pub fn is_data(&self) -> bool {
-		self.state == ObjectVersionState::Complete && self.data != ObjectVersionData::DeleteMarker
-	}
-}
-
-impl Entry<String, String> for Object {
-	fn partition_key(&self) -> &String {
-		&self.bucket
-	}
-	fn sort_key(&self) -> &String {
-		&self.key
-	}
-
-	fn merge(&mut self, other: &Self) {
-		for other_v in other.versions.iter() {
-			match self
-				.versions
-				.binary_search_by(|v| v.cmp_key().cmp(&other_v.cmp_key()))
-			{
-				Ok(i) => {
-					let mut v = &mut self.versions[i];
-					if other_v.size > v.size {
-						v.size = other_v.size;
-					}
-					v.state = v.state.max(other_v.state);
-					if v.data == ObjectVersionData::Uploading {
-						v.data = other_v.data.clone();
-					}
-				}
-				Err(i) => {
-					self.versions.insert(i, other_v.clone());
-				}
-			}
-		}
-		let last_complete = self
-			.versions
-			.iter()
-			.enumerate()
-			.rev()
-			.filter(|(_, v)| v.is_complete())
-			.next()
-			.map(|(vi, _)| vi);
-
-		if let Some(last_vi) = last_complete {
-			self.versions = self.versions.drain(last_vi..).collect::<Vec<_>>();
-		}
-	}
-}
-
-pub struct ObjectTable {
-	pub background: Arc<BackgroundRunner>,
-	pub version_table: Arc<Table<VersionTable, TableShardedReplication>>,
-}
-
-#[async_trait]
-impl TableSchema for ObjectTable {
-	type P = String;
-	type S = String;
-	type E = Object;
-	type Filter = ();
-
-	async fn updated(&self, old: Option<Self::E>, new: Option<Self::E>) -> Result<(), Error> {
-		let version_table = self.version_table.clone();
-		if let (Some(old_v), Some(new_v)) = (old, new) {
-			// Propagate deletion of old versions
-			for v in old_v.versions.iter() {
-				let newly_deleted = match new_v
-					.versions
-					.binary_search_by(|nv| nv.cmp_key().cmp(&v.cmp_key()))
-				{
-					Err(_) => true,
-					Ok(i) => {
-						new_v.versions[i].state == ObjectVersionState::Aborted
-							&& v.state != ObjectVersionState::Aborted
-					}
-				};
-				if newly_deleted {
-					let deleted_version = Version::new(
-						v.uuid,
-						old_v.bucket.clone(),
-						old_v.key.clone(),
-						true,
-						vec![],
-					);
-					version_table.insert(&deleted_version).await?;
-				}
-			}
-		}
-		Ok(())
-	}
-
-	fn matches_filter(entry: &Self::E, _filter: &Self::Filter) -> bool {
-		entry.versions.iter().any(|v| v.is_data())
-	}
-}
diff --git a/src/core/version_table.rs b/src/core/version_table.rs
deleted file mode 100644
index 6054e389..00000000
--- a/src/core/version_table.rs
+++ /dev/null
@@ -1,145 +0,0 @@
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-use std::sync::Arc;
-
-use garage_util::background::BackgroundRunner;
-use garage_util::data::*;
-use garage_util::error::Error;
-
-use garage_table::table_sharded::*;
-use garage_table::*;
-
-use crate::block_ref_table::*;
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct Version {
-	// Primary key
-	pub uuid: UUID,
-
-	// Actual data: the blocks for this version
-	pub deleted: bool,
-	blocks: Vec<VersionBlock>,
-
-	// Back link to bucket+key so that we can figure if
-	// this was deleted later on
-	pub bucket: String,
-	pub key: String,
-}
-
-impl Version {
-	pub fn new(
-		uuid: UUID,
-		bucket: String,
-		key: String,
-		deleted: bool,
-		blocks: Vec<VersionBlock>,
-	) -> Self {
-		let mut ret = Self {
-			uuid,
-			deleted,
-			blocks: vec![],
-			bucket,
-			key,
-		};
-		for b in blocks {
-			ret.add_block(b)
-				.expect("Twice the same VersionBlock in Version constructor");
-		}
-		ret
-	}
-	/// Adds a block if it wasn't already present
-	pub fn add_block(&mut self, new: VersionBlock) -> Result<(), ()> {
-		match self
-			.blocks
-			.binary_search_by(|b| b.cmp_key().cmp(&new.cmp_key()))
-		{
-			Err(i) => {
-				self.blocks.insert(i, new);
-				Ok(())
-			}
-			Ok(_) => Err(()),
-		}
-	}
-	pub fn blocks(&self) -> &[VersionBlock] {
-		&self.blocks[..]
-	}
-}
-
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
-pub struct VersionBlock {
-	pub part_number: u64,
-	pub offset: u64,
-	pub hash: Hash,
-	pub size: u64,
-}
-
-impl VersionBlock {
-	fn cmp_key(&self) -> (u64, u64) {
-		(self.part_number, self.offset)
-	}
-}
-
-impl Entry<Hash, EmptyKey> for Version {
-	fn partition_key(&self) -> &Hash {
-		&self.uuid
-	}
-	fn sort_key(&self) -> &EmptyKey {
-		&EmptyKey
-	}
-
-	fn merge(&mut self, other: &Self) {
-		if other.deleted {
-			self.deleted = true;
-			self.blocks.clear();
-		} else if !self.deleted {
-			for bi in other.blocks.iter() {
-				match self
-					.blocks
-					.binary_search_by(|x| x.cmp_key().cmp(&bi.cmp_key()))
-				{
-					Ok(_) => (),
-					Err(pos) => {
-						self.blocks.insert(pos, bi.clone());
-					}
-				}
-			}
-		}
-	}
-}
-
-pub struct VersionTable {
-	pub background: Arc<BackgroundRunner>,
-	pub block_ref_table: Arc<Table<BlockRefTable, TableShardedReplication>>,
-}
-
-#[async_trait]
-impl TableSchema for VersionTable {
-	type P = Hash;
-	type S = EmptyKey;
-	type E = Version;
-	type Filter = ();
-
-	async fn updated(&self, old: Option<Self::E>, new: Option<Self::E>) -> Result<(), Error> {
-		let block_ref_table = self.block_ref_table.clone();
-		if let (Some(old_v), Some(new_v)) = (old, new) {
-			// Propagate deletion of version blocks
-			if new_v.deleted && !old_v.deleted {
-				let deleted_block_refs = old_v
-					.blocks
-					.iter()
-					.map(|vb| BlockRef {
-						block: vb.hash,
-						version: old_v.uuid,
-						deleted: true,
-					})
-					.collect::<Vec<_>>();
-				block_ref_table.insert_many(&deleted_block_refs[..]).await?;
-			}
-		}
-		Ok(())
-	}
-
-	fn matches_filter(entry: &Self::E, _filter: &Self::Filter) -> bool {
-		!entry.deleted
-	}
-}