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-rw-r--r--src/table/table.rs229
1 files changed, 42 insertions, 187 deletions
diff --git a/src/table/table.rs b/src/table/table.rs
index 1f6b7d25..e203b178 100644
--- a/src/table/table.rs
+++ b/src/table/table.rs
@@ -2,9 +2,6 @@ use std::collections::{BTreeMap, HashMap};
use std::sync::Arc;
use std::time::Duration;
-use log::warn;
-
-use arc_swap::ArcSwapOption;
use futures::stream::*;
use serde::{Deserialize, Serialize};
use serde_bytes::ByteBuf;
@@ -13,25 +10,25 @@ use garage_util::data::*;
use garage_util::error::Error;
use garage_rpc::membership::System;
-use garage_rpc::ring::Ring;
use garage_rpc::rpc_client::*;
use garage_rpc::rpc_server::*;
+use crate::crdt::CRDT;
+use crate::data::*;
+use crate::gc::*;
+use crate::merkle::*;
+use crate::replication::*;
use crate::schema::*;
-use crate::table_sync::*;
+use crate::sync::*;
const TABLE_RPC_TIMEOUT: Duration = Duration::from_secs(10);
pub struct Table<F: TableSchema, R: TableReplication> {
- pub instance: F,
- pub replication: R,
-
- pub name: String,
- pub(crate) rpc_client: Arc<RpcClient<TableRPC<F>>>,
-
pub system: Arc<System>,
- pub store: sled::Tree,
- pub syncer: ArcSwapOption<TableSyncer<F, R>>,
+ pub data: Arc<TableData<F, R>>,
+ pub merkle_updater: Arc<MerkleUpdater<F, R>>,
+ pub syncer: Arc<TableSyncer<F, R>>,
+ rpc_client: Arc<RpcClient<TableRPC<F>>>,
}
#[derive(Serialize, Deserialize)]
@@ -45,30 +42,10 @@ pub(crate) enum TableRPC<F: TableSchema> {
ReadRange(F::P, Option<F::S>, Option<F::Filter>, usize),
Update(Vec<Arc<ByteBuf>>),
-
- SyncRPC(SyncRPC),
}
impl<F: TableSchema> RpcMessage for TableRPC<F> {}
-pub trait TableReplication: Send + Sync {
- // See examples in table_sharded.rs and table_fullcopy.rs
- // To understand various replication methods
-
- // Which nodes to send reads from
- fn read_nodes(&self, hash: &Hash, system: &System) -> Vec<UUID>;
- fn read_quorum(&self) -> usize;
-
- // Which nodes to send writes to
- fn write_nodes(&self, hash: &Hash, system: &System) -> Vec<UUID>;
- fn write_quorum(&self, system: &System) -> usize;
- fn max_write_errors(&self) -> usize;
-
- // Which are the nodes that do actually replicate the data
- fn replication_nodes(&self, hash: &Hash, ring: &Ring) -> Vec<UUID>;
- fn split_points(&self, ring: &Ring) -> Vec<Hash>;
-}
-
impl<F, R> Table<F, R>
where
F: TableSchema + 'static,
@@ -76,7 +53,7 @@ where
{
// =============== PUBLIC INTERFACE FUNCTIONS (new, insert, get, etc) ===============
- pub async fn new(
+ pub fn new(
instance: F,
replication: R,
system: Arc<System>,
@@ -84,31 +61,37 @@ where
name: String,
rpc_server: &mut RpcServer,
) -> Arc<Self> {
- let store = db.open_tree(&name).expect("Unable to open DB tree");
-
let rpc_path = format!("table_{}", name);
let rpc_client = system.rpc_client::<TableRPC<F>>(&rpc_path);
+ let data = TableData::new(system.clone(), name, instance, replication, db);
+
+ let merkle_updater = MerkleUpdater::launch(&system.background, data.clone());
+
+ let syncer = TableSyncer::launch(
+ system.clone(),
+ data.clone(),
+ merkle_updater.clone(),
+ rpc_server,
+ );
+ TableGC::launch(system.clone(), data.clone(), rpc_server);
+
let table = Arc::new(Self {
- instance,
- replication,
- name,
- rpc_client,
system,
- store,
- syncer: ArcSwapOption::from(None),
+ data,
+ merkle_updater,
+ syncer,
+ rpc_client,
});
- table.clone().register_handler(rpc_server, rpc_path);
- let syncer = TableSyncer::launch(table.clone()).await;
- table.syncer.swap(Some(syncer));
+ table.clone().register_handler(rpc_server, rpc_path);
table
}
pub async fn insert(&self, e: &F::E) -> Result<(), Error> {
let hash = e.partition_key().hash();
- let who = self.replication.write_nodes(&hash, &self.system);
+ let who = self.data.replication.write_nodes(&hash);
//eprintln!("insert who: {:?}", who);
let e_enc = Arc::new(ByteBuf::from(rmp_to_vec_all_named(e)?));
@@ -118,7 +101,7 @@ where
.try_call_many(
&who[..],
rpc,
- RequestStrategy::with_quorum(self.replication.write_quorum(&self.system))
+ RequestStrategy::with_quorum(self.data.replication.write_quorum())
.with_timeout(TABLE_RPC_TIMEOUT),
)
.await?;
@@ -130,7 +113,7 @@ where
for entry in entries.iter() {
let hash = entry.partition_key().hash();
- let who = self.replication.write_nodes(&hash, &self.system);
+ let who = self.data.replication.write_nodes(&hash);
let e_enc = Arc::new(ByteBuf::from(rmp_to_vec_all_named(entry)?));
for node in who {
if !call_list.contains_key(&node) {
@@ -154,7 +137,7 @@ where
errors.push(e);
}
}
- if errors.len() > self.replication.max_write_errors() {
+ if errors.len() > self.data.replication.max_write_errors() {
Err(Error::Message("Too many errors".into()))
} else {
Ok(())
@@ -167,7 +150,7 @@ where
sort_key: &F::S,
) -> Result<Option<F::E>, Error> {
let hash = partition_key.hash();
- let who = self.replication.read_nodes(&hash, &self.system);
+ let who = self.data.replication.read_nodes(&hash);
//eprintln!("get who: {:?}", who);
let rpc = TableRPC::<F>::ReadEntry(partition_key.clone(), sort_key.clone());
@@ -176,7 +159,7 @@ where
.try_call_many(
&who[..],
rpc,
- RequestStrategy::with_quorum(self.replication.read_quorum())
+ RequestStrategy::with_quorum(self.data.replication.read_quorum())
.with_timeout(TABLE_RPC_TIMEOUT)
.interrupt_after_quorum(true),
)
@@ -187,7 +170,7 @@ where
for resp in resps {
if let TableRPC::ReadEntryResponse(value) = resp {
if let Some(v_bytes) = value {
- let v = self.decode_entry(v_bytes.as_slice())?;
+ let v = self.data.decode_entry(v_bytes.as_slice())?;
ret = match ret {
None => Some(v),
Some(mut x) => {
@@ -223,7 +206,7 @@ where
limit: usize,
) -> Result<Vec<F::E>, Error> {
let hash = partition_key.hash();
- let who = self.replication.read_nodes(&hash, &self.system);
+ let who = self.data.replication.read_nodes(&hash);
let rpc = TableRPC::<F>::ReadRange(partition_key.clone(), begin_sort_key, filter, limit);
@@ -232,7 +215,7 @@ where
.try_call_many(
&who[..],
rpc,
- RequestStrategy::with_quorum(self.replication.read_quorum())
+ RequestStrategy::with_quorum(self.data.replication.read_quorum())
.with_timeout(TABLE_RPC_TIMEOUT)
.interrupt_after_quorum(true),
)
@@ -243,8 +226,8 @@ where
for resp in resps {
if let TableRPC::Update(entries) = resp {
for entry_bytes in entries.iter() {
- let entry = self.decode_entry(entry_bytes.as_slice())?;
- let entry_key = self.tree_key(entry.partition_key(), entry.sort_key());
+ let entry = self.data.decode_entry(entry_bytes.as_slice())?;
+ let entry_key = self.data.tree_key(entry.partition_key(), entry.sort_key());
match ret.remove(&entry_key) {
None => {
ret.insert(entry_key, Some(entry));
@@ -313,146 +296,18 @@ where
async fn handle(self: &Arc<Self>, msg: &TableRPC<F>) -> Result<TableRPC<F>, Error> {
match msg {
TableRPC::ReadEntry(key, sort_key) => {
- let value = self.handle_read_entry(key, sort_key)?;
+ let value = self.data.read_entry(key, sort_key)?;
Ok(TableRPC::ReadEntryResponse(value))
}
TableRPC::ReadRange(key, begin_sort_key, filter, limit) => {
- let values = self.handle_read_range(key, begin_sort_key, filter, *limit)?;
+ let values = self.data.read_range(key, begin_sort_key, filter, *limit)?;
Ok(TableRPC::Update(values))
}
TableRPC::Update(pairs) => {
- self.handle_update(pairs).await?;
+ self.data.update_many(pairs)?;
Ok(TableRPC::Ok)
}
- TableRPC::SyncRPC(rpc) => {
- let syncer = self.syncer.load_full().unwrap();
- let response = syncer
- .handle_rpc(rpc, self.system.background.stop_signal.clone())
- .await?;
- Ok(TableRPC::SyncRPC(response))
- }
_ => Err(Error::BadRPC(format!("Unexpected table RPC"))),
}
}
-
- fn handle_read_entry(&self, p: &F::P, s: &F::S) -> Result<Option<ByteBuf>, Error> {
- let tree_key = self.tree_key(p, s);
- if let Some(bytes) = self.store.get(&tree_key)? {
- Ok(Some(ByteBuf::from(bytes.to_vec())))
- } else {
- Ok(None)
- }
- }
-
- fn handle_read_range(
- &self,
- p: &F::P,
- s: &Option<F::S>,
- filter: &Option<F::Filter>,
- limit: usize,
- ) -> Result<Vec<Arc<ByteBuf>>, Error> {
- let partition_hash = p.hash();
- let first_key = match s {
- None => partition_hash.to_vec(),
- Some(sk) => self.tree_key(p, sk),
- };
- let mut ret = vec![];
- for item in self.store.range(first_key..) {
- let (key, value) = item?;
- if &key[..32] != partition_hash.as_slice() {
- break;
- }
- let keep = match filter {
- None => true,
- Some(f) => {
- let entry = self.decode_entry(value.as_ref())?;
- F::matches_filter(&entry, f)
- }
- };
- if keep {
- ret.push(Arc::new(ByteBuf::from(value.as_ref())));
- }
- if ret.len() >= limit {
- break;
- }
- }
- Ok(ret)
- }
-
- pub async fn handle_update(self: &Arc<Self>, entries: &[Arc<ByteBuf>]) -> Result<(), Error> {
- let syncer = self.syncer.load_full().unwrap();
-
- for update_bytes in entries.iter() {
- let update = self.decode_entry(update_bytes.as_slice())?;
-
- let tree_key = self.tree_key(update.partition_key(), update.sort_key());
-
- let (old_entry, new_entry) = self.store.transaction(|db| {
- let (old_entry, new_entry) = match db.get(&tree_key)? {
- Some(prev_bytes) => {
- let old_entry = self
- .decode_entry(&prev_bytes)
- .map_err(sled::transaction::ConflictableTransactionError::Abort)?;
- let mut new_entry = old_entry.clone();
- new_entry.merge(&update);
- (Some(old_entry), new_entry)
- }
- None => (None, update.clone()),
- };
-
- let new_bytes = rmp_to_vec_all_named(&new_entry)
- .map_err(Error::RMPEncode)
- .map_err(sled::transaction::ConflictableTransactionError::Abort)?;
- db.insert(tree_key.clone(), new_bytes)?;
- Ok((old_entry, new_entry))
- })?;
-
- if old_entry.as_ref() != Some(&new_entry) {
- self.instance.updated(old_entry, Some(new_entry));
- syncer.invalidate(&tree_key[..]);
- }
- }
-
- Ok(())
- }
-
- pub(crate) fn delete_if_equal(self: &Arc<Self>, k: &[u8], v: &[u8]) -> Result<bool, Error> {
- let removed = self.store.transaction(|txn| {
- if let Some(cur_v) = txn.get(k)? {
- if cur_v == v {
- txn.remove(k)?;
- return Ok(true);
- }
- }
- Ok(false)
- })?;
- if removed {
- let old_entry = self.decode_entry(v)?;
- self.instance.updated(Some(old_entry), None);
- self.syncer.load_full().unwrap().invalidate(k);
- }
- Ok(removed)
- }
-
- fn tree_key(&self, p: &F::P, s: &F::S) -> Vec<u8> {
- let mut ret = p.hash().to_vec();
- ret.extend(s.sort_key());
- ret
- }
-
- fn decode_entry(&self, bytes: &[u8]) -> Result<F::E, Error> {
- match rmp_serde::decode::from_read_ref::<_, F::E>(bytes) {
- Ok(x) => Ok(x),
- Err(e) => match F::try_migrate(bytes) {
- Some(x) => Ok(x),
- None => {
- warn!("Unable to decode entry of {}: {}", self.name, e);
- for line in hexdump::hexdump_iter(bytes) {
- debug!("{}", line);
- }
- Err(e.into())
- }
- },
- }
- }
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 19:22:55 +0000