diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/api/Cargo.toml | 2 | ||||
-rw-r--r-- | src/api/error.rs | 8 | ||||
-rw-r--r-- | src/garage/admin_rpc.rs | 46 | ||||
-rw-r--r-- | src/garage/cli.rs | 235 | ||||
-rw-r--r-- | src/garage/main.rs | 3 | ||||
-rw-r--r-- | src/garage/server.rs | 8 | ||||
-rw-r--r-- | src/model/block.rs | 30 | ||||
-rw-r--r-- | src/model/garage.rs | 6 | ||||
-rw-r--r-- | src/rpc/Cargo.toml | 4 | ||||
-rw-r--r-- | src/rpc/consul.rs | 125 | ||||
-rw-r--r-- | src/rpc/ring.rs | 36 | ||||
-rw-r--r-- | src/rpc/rpc_helper.rs | 53 | ||||
-rw-r--r-- | src/rpc/system.rs | 277 | ||||
-rw-r--r-- | src/table/gc.rs | 29 | ||||
-rw-r--r-- | src/table/replication/fullcopy.rs | 7 | ||||
-rw-r--r-- | src/table/replication/parameters.rs | 5 | ||||
-rw-r--r-- | src/table/replication/sharded.rs | 5 | ||||
-rw-r--r-- | src/table/sync.rs | 36 | ||||
-rw-r--r-- | src/table/table.rs | 35 | ||||
-rw-r--r-- | src/util/config.rs | 26 | ||||
-rw-r--r-- | src/util/data.rs | 12 | ||||
-rw-r--r-- | src/util/error.rs | 82 | ||||
-rw-r--r-- | src/web/Cargo.toml | 2 | ||||
-rw-r--r-- | src/web/error.rs | 4 |
24 files changed, 654 insertions, 422 deletions
diff --git a/src/api/Cargo.toml b/src/api/Cargo.toml index b46652df..ebbe7c0d 100644 --- a/src/api/Cargo.toml +++ b/src/api/Cargo.toml @@ -35,7 +35,7 @@ tokio = { version = "1.0", default-features = false, features = ["rt", "rt-multi http = "0.2" httpdate = "0.3" http-range = "0.1" -hyper = "0.14" +hyper = { version = "0.14", features = ["server", "http1", "runtime", "tcp", "stream"] } percent-encoding = "2.1.0" roxmltree = "0.14" serde = { version = "1.0", features = ["derive"] } diff --git a/src/api/error.rs b/src/api/error.rs index 7d97366e..35fa404f 100644 --- a/src/api/error.rs +++ b/src/api/error.rs @@ -82,7 +82,9 @@ impl Error { match self { Error::NotFound => StatusCode::NOT_FOUND, Error::Forbidden(_) => StatusCode::FORBIDDEN, - Error::InternalError(GarageError::Rpc(_)) => StatusCode::SERVICE_UNAVAILABLE, + Error::InternalError( + GarageError::Timeout | GarageError::RemoteError(_) | GarageError::TooManyErrors(_), + ) => StatusCode::SERVICE_UNAVAILABLE, Error::InternalError(_) | Error::Hyper(_) | Error::Http(_) => { StatusCode::INTERNAL_SERVER_ERROR } @@ -95,7 +97,9 @@ impl Error { Error::NotFound => "NoSuchKey", Error::Forbidden(_) => "AccessDenied", Error::AuthorizationHeaderMalformed(_) => "AuthorizationHeaderMalformed", - Error::InternalError(GarageError::Rpc(_)) => "ServiceUnavailable", + Error::InternalError( + GarageError::Timeout | GarageError::RemoteError(_) | GarageError::TooManyErrors(_), + ) => "ServiceUnavailable", Error::InternalError(_) | Error::Hyper(_) | Error::Http(_) => "InternalError", _ => "InvalidRequest", } diff --git a/src/garage/admin_rpc.rs b/src/garage/admin_rpc.rs index b9e57c40..339d5bdb 100644 --- a/src/garage/admin_rpc.rs +++ b/src/garage/admin_rpc.rs @@ -31,15 +31,14 @@ pub enum AdminRpc { // Replies Ok(String), - Error(String), BucketList(Vec<String>), BucketInfo(Bucket), KeyList(Vec<(String, String)>), KeyInfo(Key), } -impl Message for AdminRpc { - type Response = AdminRpc; +impl Rpc for AdminRpc { + type Response = Result<AdminRpc, Error>; } pub struct AdminRpcHandler { @@ -341,17 +340,20 @@ impl AdminRpcHandler { let mut failures = vec![]; let ring = self.garage.system.ring.borrow().clone(); for node in ring.config.members.keys() { - let node = NodeID::from_slice(node.as_slice()).unwrap(); - if self + let node = (*node).into(); + let resp = self .endpoint .call( &node, &AdminRpc::LaunchRepair(opt_to_send.clone()), PRIO_NORMAL, ) - .await - .is_err() - { + .await; + let is_err = match resp { + Ok(Ok(_)) => false, + _ => true, + }; + if is_err { failures.push(node); } } @@ -386,17 +388,17 @@ impl AdminRpcHandler { let ring = self.garage.system.ring.borrow().clone(); for node in ring.config.members.keys() { - let node = NodeID::from_slice(node.as_slice()).unwrap(); - let mut opt = opt.clone(); opt.all_nodes = false; writeln!(&mut ret, "\n======================").unwrap(); writeln!(&mut ret, "Stats for node {:?}:", node).unwrap(); + + let node_id = (*node).into(); match self .endpoint - .call(&node, &AdminRpc::Stats(opt), PRIO_NORMAL) - .await + .call(&node_id, &AdminRpc::Stats(opt), PRIO_NORMAL) + .await? { Ok(AdminRpc::Ok(s)) => writeln!(&mut ret, "{}", s).unwrap(), Ok(x) => writeln!(&mut ret, "Bad answer: {:?}", x).unwrap(), @@ -486,9 +488,16 @@ impl AdminRpcHandler { .unwrap(); writeln!(to, " GC todo queue length: {}", t.data.gc_todo_len()).unwrap(); } +} - async fn handle_rpc(self: &Arc<Self>, msg: &AdminRpc) -> Result<AdminRpc, Error> { - match msg { +#[async_trait] +impl EndpointHandler<AdminRpc> for AdminRpcHandler { + async fn handle( + self: &Arc<Self>, + message: &AdminRpc, + _from: NodeID, + ) -> Result<AdminRpc, Error> { + match message { AdminRpc::BucketOperation(bo) => self.handle_bucket_cmd(bo).await, AdminRpc::KeyOperation(ko) => self.handle_key_cmd(ko).await, AdminRpc::LaunchRepair(opt) => self.handle_launch_repair(opt.clone()).await, @@ -497,12 +506,3 @@ impl AdminRpcHandler { } } } - -#[async_trait] -impl EndpointHandler<AdminRpc> for AdminRpcHandler { - async fn handle(self: &Arc<Self>, message: &AdminRpc, _from: NodeID) -> AdminRpc { - self.handle_rpc(message) - .await - .unwrap_or_else(|e| AdminRpc::Error(format!("{}", e))) - } -} diff --git a/src/garage/cli.rs b/src/garage/cli.rs index 91ec5ab2..940a5a85 100644 --- a/src/garage/cli.rs +++ b/src/garage/cli.rs @@ -1,5 +1,4 @@ -//use std::cmp::max; -//use std::collections::HashSet; +use std::collections::HashSet; use std::path::PathBuf; use serde::{Deserialize, Serialize}; @@ -7,7 +6,7 @@ use structopt::StructOpt; use garage_util::data::Uuid; use garage_util::error::Error; -//use garage_util::time::*; +use garage_util::time::*; use garage_rpc::ring::*; use garage_rpc::system::*; @@ -58,6 +57,10 @@ pub struct ServerOpt { #[derive(StructOpt, Debug)] pub enum NodeOperation { + /// Connect to Garage node that is currently isolated from the system + #[structopt(name = "connect")] + Connect(ConnectNodeOpt), + /// Configure Garage node #[structopt(name = "configure")] Configure(ConfigureNodeOpt), @@ -68,6 +71,13 @@ pub enum NodeOperation { } #[derive(StructOpt, Debug)] +pub struct ConnectNodeOpt { + /// Node public key and address, in the format: + /// `<public key hexadecimal>@<ip or hostname>:<port>` + node: String, +} + +#[derive(StructOpt, Debug)] pub struct ConfigureNodeOpt { /// Node to configure (prefix of hexadecimal node id) node_id: String, @@ -303,6 +313,9 @@ pub async fn cli_cmd( ) -> Result<(), Error> { match cmd { Command::Status => cmd_status(system_rpc_endpoint, rpc_host).await, + Command::Node(NodeOperation::Connect(connect_opt)) => { + cmd_connect(system_rpc_endpoint, rpc_host, connect_opt).await + } Command::Node(NodeOperation::Configure(configure_opt)) => { cmd_configure(system_rpc_endpoint, rpc_host, configure_opt).await } @@ -326,142 +339,96 @@ pub async fn cli_cmd( pub async fn cmd_status(rpc_cli: &Endpoint<SystemRpc, ()>, rpc_host: NodeID) -> Result<(), Error> { let status = match rpc_cli .call(&rpc_host, &SystemRpc::GetKnownNodes, PRIO_NORMAL) - .await? + .await?? { SystemRpc::ReturnKnownNodes(nodes) => nodes, resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))), }; let config = match rpc_cli .call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL) - .await? + .await?? { SystemRpc::AdvertiseConfig(cfg) => cfg, resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))), }; - println!("STATUS:"); - for node in status { - println!("{:?}", node); - } - println!("CONFIG: (v{})", config.version); - for (id, node) in config.members { - println!("{} {:?}", hex::encode(id.as_slice()), node); - } - - /* TODO - let (hostname_len, addr_len, tag_len, zone_len) = status - .iter() - .map(|(id, addr, _)| (addr, config.members.get(&adv.id))) - .map(|(addr, cfg)| { - ( - 8, - addr.to_string().len(), - cfg.map(|c| c.tag.len()).unwrap_or(0), - cfg.map(|c| c.zone.len()).unwrap_or(0), - ) - }) - .fold((0, 0, 0, 0), |(h, a, t, z), (mh, ma, mt, mz)| { - (max(h, mh), max(a, ma), max(t, mt), max(z, mz)) - }); - println!("Healthy nodes:"); - for (id, addr, _) in status.iter().filter(|(id, addr, is_up)| is_up) { + let mut healthy_nodes = vec!["ID\tHostname\tAddress\tTag\tZone\tCapacity".to_string()]; + for adv in status.iter().filter(|adv| adv.is_up) { if let Some(cfg) = config.members.get(&adv.id) { - println!( - "{id:?}\t{host}{h_pad}\t{addr}{a_pad}\t[{tag}]{t_pad}\t{zone}{z_pad}\t{capacity}", - id = id, - host = "", - addr = addr, + healthy_nodes.push(format!( + "{id:?}\t{host}\t{addr}\t[{tag}]\t{zone}\t{capacity}", + id = adv.id, + host = adv.status.hostname, + addr = adv.addr, tag = cfg.tag, zone = cfg.zone, capacity = cfg.capacity_string(), - h_pad = " ".repeat(hostname_len - adv.state_info.hostname.len()), - a_pad = " ".repeat(addr_len - adv.addr.to_string().len()), - t_pad = " ".repeat(tag_len - cfg.tag.len()), - z_pad = " ".repeat(zone_len - cfg.zone.len()), - ); + )); } else { - println!( - "{id:?}\t{h}{h_pad}\t{addr}{a_pad}\tUNCONFIGURED/REMOVED", - id = id, - h = "", - addr = addr, - h_pad = " ".repeat(hostname_len - "".len()), - a_pad = " ".repeat(addr_len - addr.to_string().len()), - ); + healthy_nodes.push(format!( + "{id:?}\t{h}\t{addr}\tUNCONFIGURED/REMOVED", + id = adv.id, + h = adv.status.hostname, + addr = adv.addr, + )); } } + format_table(healthy_nodes); - let status_keys = status.iter().map(|(id, _, _)| id).collect::<HashSet<_>>(); - let failure_case_1 = status.iter().any(|(_, _, is_up)| !is_up); + let status_keys = status.iter().map(|adv| adv.id).collect::<HashSet<_>>(); + let failure_case_1 = status.iter().any(|adv| !adv.is_up); let failure_case_2 = config .members .iter() .any(|(id, _)| !status_keys.contains(id)); if failure_case_1 || failure_case_2 { println!("\nFailed nodes:"); - for (id, addr) in status.iter().filter(|(_, _, is_up)| !is_up) { - if let Some(cfg) = config.members.get(&id) { - println!( - "{id:?}\t{host}{h_pad}\t{addr}{a_pad}\t[{tag}]{t_pad}\t{zone}{z_pad}\t{capacity}\tlast seen: {last_seen}s ago", - id=id, - host="", - addr=addr, - tag=cfg.tag, - zone=cfg.zone, - capacity=cfg.capacity_string(), - last_seen=(now_msec() - 0) / 1000, - h_pad=" ".repeat(hostname_len - "".len()), - a_pad=" ".repeat(addr_len - addr.to_string().len()), - t_pad=" ".repeat(tag_len - cfg.tag.len()), - z_pad=" ".repeat(zone_len - cfg.zone.len()), - ); + let mut failed_nodes = vec!["ID\tHostname\tAddress\tTag\tZone\tCapacity\tLast seen".to_string()]; + for adv in status.iter().filter(|adv| !adv.is_up) { + if let Some(cfg) = config.members.get(&adv.id) { + failed_nodes.push(format!( + "{id:?}\t{host}\t{addr}\t[{tag}]\t{zone}\t{capacity}\t{last_seen}s ago", + id = adv.id, + host = adv.status.hostname, + addr = adv.addr, + tag = cfg.tag, + zone = cfg.zone, + capacity = cfg.capacity_string(), + last_seen = (now_msec() - 0) / 1000, + )); } } - let (tag_len, zone_len) = config - .members - .iter() - .filter(|(&id, _)| !status.iter().any(|(xid, _, _)| xid == id)) - .map(|(_, cfg)| (cfg.tag.len(), cfg.zone.len())) - .fold((0, 0), |(t, z), (mt, mz)| (max(t, mt), max(z, mz))); - for (id, cfg) in config.members.iter() { - if !status.iter().any(|(xid, _, _)| xid == *id) { - println!( - "{id:?}\t{tag}{t_pad}\t{zone}{z_pad}\t{capacity}\tnever seen", + if !status.iter().any(|adv| adv.id == *id) { + failed_nodes.push(format!( + "{id:?}\t??\t??\t[{tag}]\t{zone}\t{capacity}\tnever seen", id = id, tag = cfg.tag, zone = cfg.zone, capacity = cfg.capacity_string(), - t_pad = " ".repeat(tag_len - cfg.tag.len()), - z_pad = " ".repeat(zone_len - cfg.zone.len()), - ); + )); } } + format_table(failed_nodes); } - */ Ok(()) } -pub fn find_matching_node( - cand: impl std::iter::Iterator<Item = Uuid>, - pattern: &str, -) -> Result<Uuid, Error> { - let mut candidates = vec![]; - for c in cand { - if hex::encode(&c).starts_with(&pattern) { - candidates.push(c); +pub async fn cmd_connect( + rpc_cli: &Endpoint<SystemRpc, ()>, + rpc_host: NodeID, + args: ConnectNodeOpt, +) -> Result<(), Error> { + match rpc_cli.call(&rpc_host, &SystemRpc::Connect(args.node), PRIO_NORMAL).await?? { + SystemRpc::Ok => { + println!("Success."); + Ok(()) + } + r => { + Err(Error::BadRpc(format!("Unexpected response: {:?}", r))) } - } - if candidates.len() != 1 { - Err(Error::Message(format!( - "{} nodes match '{}'", - candidates.len(), - pattern, - ))) - } else { - Ok(candidates[0]) } } @@ -472,22 +439,17 @@ pub async fn cmd_configure( ) -> Result<(), Error> { let status = match rpc_cli .call(&rpc_host, &SystemRpc::GetKnownNodes, PRIO_NORMAL) - .await? + .await?? { SystemRpc::ReturnKnownNodes(nodes) => nodes, resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))), }; - let added_node = find_matching_node( - status - .iter() - .map(|(id, _, _)| Uuid::try_from(id.as_ref()).unwrap()), - &args.node_id, - )?; + let added_node = find_matching_node(status.iter().map(|adv| adv.id), &args.node_id)?; let mut config = match rpc_cli .call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL) - .await? + .await?? { SystemRpc::AdvertiseConfig(cfg) => cfg, resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))), @@ -544,7 +506,7 @@ pub async fn cmd_configure( rpc_cli .call(&rpc_host, &SystemRpc::AdvertiseConfig(config), PRIO_NORMAL) - .await?; + .await??; Ok(()) } @@ -555,7 +517,7 @@ pub async fn cmd_remove( ) -> Result<(), Error> { let mut config = match rpc_cli .call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL) - .await? + .await?? { SystemRpc::AdvertiseConfig(cfg) => cfg, resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))), @@ -575,7 +537,7 @@ pub async fn cmd_remove( rpc_cli .call(&rpc_host, &SystemRpc::AdvertiseConfig(config), PRIO_NORMAL) - .await?; + .await??; Ok(()) } @@ -584,7 +546,7 @@ pub async fn cmd_admin( rpc_host: NodeID, args: AdminRpc, ) -> Result<(), Error> { - match rpc_cli.call(&rpc_host, &args, PRIO_NORMAL).await? { + match rpc_cli.call(&rpc_host, &args, PRIO_NORMAL).await?? { AdminRpc::Ok(msg) => { println!("{}", msg); } @@ -613,6 +575,8 @@ pub async fn cmd_admin( Ok(()) } +// --- Utility functions ---- + fn print_key_info(key: &Key) { println!("Key name: {}", key.name.get()); println!("Key ID: {}", key.key_id); @@ -640,3 +604,54 @@ fn print_bucket_info(bucket: &Bucket) { } }; } + +fn format_table(data: Vec<String>) { + let data = data + .iter() + .map(|s| s.split('\t').collect::<Vec<_>>()) + .collect::<Vec<_>>(); + + let columns = data.iter().map(|row| row.len()).fold(0, std::cmp::max); + let mut column_size = vec![0; columns]; + + let mut out = String::new(); + + for row in data.iter() { + for (i, col) in row.iter().enumerate() { + column_size[i] = std::cmp::max(column_size[i], col.chars().count()); + } + } + + for row in data.iter() { + for (col, col_len) in row[..row.len() - 1].iter().zip(column_size.iter()) { + out.push_str(col); + (0..col_len - col.chars().count() + 2).for_each(|_| out.push(' ')); + } + out.push_str(&row[row.len() - 1]); + out.push('\n'); + } + + print!("{}", out); +} + +pub fn find_matching_node( + cand: impl std::iter::Iterator<Item = Uuid>, + pattern: &str, +) -> Result<Uuid, Error> { + let mut candidates = vec![]; + for c in cand { + if hex::encode(&c).starts_with(&pattern) { + candidates.push(c); + } + } + if candidates.len() != 1 { + Err(Error::Message(format!( + "{} nodes match '{}'", + candidates.len(), + pattern, + ))) + } else { + Ok(candidates[0]) + } +} + diff --git a/src/garage/main.rs b/src/garage/main.rs index 7fe791b8..543860ca 100644 --- a/src/garage/main.rs +++ b/src/garage/main.rs @@ -9,8 +9,6 @@ mod cli; mod repair; mod server; -use std::net::SocketAddr; - use structopt::StructOpt; use netapp::util::parse_peer_addr; @@ -43,6 +41,7 @@ struct Opt { #[tokio::main] async fn main() { pretty_env_logger::init(); + sodiumoxide::init().expect("Unable to init sodiumoxide"); let opt = Opt::from_args(); diff --git a/src/garage/server.rs b/src/garage/server.rs index 0edf3e2d..cd92d157 100644 --- a/src/garage/server.rs +++ b/src/garage/server.rs @@ -71,8 +71,14 @@ pub async fn run_server(config_file: PathBuf) -> Result<(), Error> { // Remove RPC handlers for system to break reference cycles garage.system.netapp.drop_all_handlers(); - // Await for last parts to end + // Await for netapp RPC system to end run_system.await?; + + // Break last reference cycles so that stuff can terminate properly + garage.break_reference_cycles(); + drop(garage); + + // Await for all background tasks to end await_background_done.await?; info!("Cleaning up..."); diff --git a/src/model/block.rs b/src/model/block.rs index 5574b7f6..a1dcf776 100644 --- a/src/model/block.rs +++ b/src/model/block.rs @@ -38,7 +38,6 @@ const RESYNC_RETRY_TIMEOUT: Duration = Duration::from_secs(10); #[derive(Debug, Serialize, Deserialize)] pub enum BlockRpc { Ok, - Error(String), /// Message to ask for a block of data, by hash GetBlock(Hash), /// Message to send a block of data, either because requested, of for first delivery of new @@ -61,8 +60,8 @@ pub struct PutBlockMessage { pub data: Vec<u8>, } -impl Message for BlockRpc { - type Response = BlockRpc; +impl Rpc for BlockRpc { + type Response = Result<BlockRpc, Error>; } /// The block manager, handling block exchange between nodes, and block storage on local node @@ -117,15 +116,6 @@ impl BlockManager { block_manager } - async fn handle_rpc(self: Arc<Self>, msg: &BlockRpc) -> Result<BlockRpc, Error> { - match msg { - BlockRpc::PutBlock(m) => self.write_block(&m.hash, &m.data).await, - BlockRpc::GetBlock(h) => self.read_block(h).await, - BlockRpc::NeedBlockQuery(h) => self.need_block(h).await.map(BlockRpc::NeedBlockReply), - _ => Err(Error::BadRpc("Unexpected RPC message".to_string())), - } - } - pub fn spawn_background_worker(self: Arc<Self>) { // Launch 2 simultaneous workers for background resync loop preprocessing <= TODO actually this // launches only one worker with current value of BACKGROUND_WORKERS @@ -532,11 +522,17 @@ impl BlockManager { #[async_trait] impl EndpointHandler<BlockRpc> for BlockManager { - async fn handle(self: &Arc<Self>, message: &BlockRpc, _from: NodeID) -> BlockRpc { - self.clone() - .handle_rpc(message) - .await - .unwrap_or_else(|e| BlockRpc::Error(format!("{}", e))) + async fn handle( + self: &Arc<Self>, + message: &BlockRpc, + _from: NodeID, + ) -> Result<BlockRpc, Error> { + match message { + BlockRpc::PutBlock(m) => self.write_block(&m.hash, &m.data).await, + BlockRpc::GetBlock(h) => self.read_block(h).await, + BlockRpc::NeedBlockQuery(h) => self.need_block(h).await.map(BlockRpc::NeedBlockReply), + _ => Err(Error::BadRpc("Unexpected RPC message".to_string())), + } } } diff --git a/src/model/garage.rs b/src/model/garage.rs index d4ea6f55..482c4df7 100644 --- a/src/model/garage.rs +++ b/src/model/garage.rs @@ -61,6 +61,7 @@ impl Garage { background.clone(), replication_mode.replication_factor(), config.rpc_bind_addr, + config.rpc_public_addr, config.bootstrap_peers.clone(), config.consul_host.clone(), config.consul_service_name.clone(), @@ -162,4 +163,9 @@ impl Garage { garage } + + /// Use this for shutdown + pub fn break_reference_cycles(&self) { + self.block_manager.garage.swap(None); + } } diff --git a/src/rpc/Cargo.toml b/src/rpc/Cargo.toml index ef03898a..f0ac6570 100644 --- a/src/rpc/Cargo.toml +++ b/src/rpc/Cargo.toml @@ -15,8 +15,6 @@ path = "lib.rs" [dependencies] garage_util = { version = "0.4.0", path = "../util" } -garage_rpc_021 = { package = "garage_rpc", version = "0.2.1" } - arc-swap = "1.0" bytes = "1.0" gethostname = "0.2" @@ -36,5 +34,5 @@ tokio = { version = "1.0", default-features = false, features = ["rt", "rt-multi tokio-stream = { version = "0.1", features = ["net"] } netapp = { version = "0.3.0", git = "https://git.deuxfleurs.fr/lx/netapp" } -hyper = "0.14" +hyper = { version = "0.14", features = ["client", "http1", "runtime", "tcp"] } diff --git a/src/rpc/consul.rs b/src/rpc/consul.rs index 63051a6b..82bf99ba 100644 --- a/src/rpc/consul.rs +++ b/src/rpc/consul.rs @@ -1,24 +1,31 @@ +use std::collections::HashMap; use std::net::{IpAddr, SocketAddr}; use hyper::client::Client; use hyper::StatusCode; use hyper::{Body, Method, Request}; -use serde::Deserialize; +use serde::{Deserialize, Serialize}; + +use netapp::NodeID; use garage_util::error::Error; -#[derive(Deserialize, Clone)] -struct ConsulEntry { - #[serde(alias = "Address")] +// ---- READING FROM CONSUL CATALOG ---- + +#[derive(Deserialize, Clone, Debug)] +struct ConsulQueryEntry { + #[serde(rename = "Address")] address: String, - #[serde(alias = "ServicePort")] + #[serde(rename = "ServicePort")] service_port: u16, + #[serde(rename = "NodeMeta")] + node_meta: HashMap<String, String>, } pub async fn get_consul_nodes( consul_host: &str, consul_service_name: &str, -) -> Result<Vec<SocketAddr>, Error> { +) -> Result<Vec<(NodeID, SocketAddr)>, Error> { let url = format!( "http://{}/v1/catalog/service/{}", consul_host, consul_service_name @@ -36,17 +43,111 @@ pub async fn get_consul_nodes( } let body = hyper::body::to_bytes(resp.into_body()).await?; - let entries = serde_json::from_slice::<Vec<ConsulEntry>>(body.as_ref())?; + let entries = serde_json::from_slice::<Vec<ConsulQueryEntry>>(body.as_ref())?; let mut ret = vec![]; for ent in entries { - let ip = ent - .address - .parse::<IpAddr>() - .map_err(|e| Error::Message(format!("Could not parse IP address: {}", e)))?; - ret.push(SocketAddr::new(ip, ent.service_port)); + let ip = ent.address.parse::<IpAddr>().ok(); + let pubkey = ent + .node_meta + .get("pubkey") + .map(|k| hex::decode(&k).ok()) + .flatten() + .map(|k| NodeID::from_slice(&k[..])) + .flatten(); + if let (Some(ip), Some(pubkey)) = (ip, pubkey) { + ret.push((pubkey, SocketAddr::new(ip, ent.service_port))); + } else { + warn!( + "Could not process node spec from Consul: {:?} (invalid IP or public key)", + ent + ); + } } debug!("Got nodes from Consul: {:?}", ret); Ok(ret) } + +// ---- PUBLISHING TO CONSUL CATALOG ---- + +#[derive(Serialize, Clone, Debug)] +struct ConsulPublishEntry { + #[serde(rename = "Node")] + node: String, + #[serde(rename = "Address")] + address: IpAddr, + #[serde(rename = "NodeMeta")] + node_meta: HashMap<String, String>, + #[serde(rename = "Service")] + service: ConsulPublishService, +} + +#[derive(Serialize, Clone, Debug)] +struct ConsulPublishService { + #[serde(rename = "ID")] + service_id: String, + #[serde(rename = "Service")] + service_name: String, + #[serde(rename = "Tags")] + tags: Vec<String>, + #[serde(rename = "Address")] + address: IpAddr, + #[serde(rename = "Port")] + port: u16, +} + +pub async fn publish_consul_service( + consul_host: &str, + consul_service_name: &str, + node_id: NodeID, + hostname: &str, + rpc_public_addr: SocketAddr, +) -> Result<(), Error> { + let node = format!("garage:{}", hex::encode(&node_id[..8])); + + let advertisment = ConsulPublishEntry { + node: node.clone(), + address: rpc_public_addr.ip(), + node_meta: [ + ("pubkey".to_string(), hex::encode(node_id)), + ("hostname".to_string(), hostname.to_string()), + ] + .iter() + .cloned() + .collect(), + service: ConsulPublishService { + service_id: node.clone(), + service_name: consul_service_name.to_string(), + tags: vec!["advertised-by-garage".into(), hostname.into()], + address: rpc_public_addr.ip(), + port: rpc_public_addr.port(), + }, + }; + + let url = format!("http://{}/v1/catalog/register", consul_host); + let req_body = serde_json::to_string(&advertisment)?; + debug!("Request body for consul adv: {}", req_body); + + let req = Request::builder() + .uri(url) + .method(Method::PUT) + .body(Body::from(req_body))?; + + let client = Client::new(); + + let resp = client.request(req).await?; + debug!("Response of advertising to Consul: {:?}", resp); + let resp_code = resp.status(); + debug!( + "{}", + std::str::from_utf8(&hyper::body::to_bytes(resp.into_body()).await?) + .unwrap_or("<invalid utf8>") + ); + + if resp_code != StatusCode::OK { + return Err(Error::Message(format!("HTTP error {}", resp_code))); + } + + Ok(()) +} diff --git a/src/rpc/ring.rs b/src/rpc/ring.rs index 7cbab762..3cb0d233 100644 --- a/src/rpc/ring.rs +++ b/src/rpc/ring.rs @@ -3,8 +3,6 @@ use std::collections::{HashMap, HashSet}; use std::convert::TryInto; -use netapp::NodeID; - use serde::{Deserialize, Serialize}; use garage_util::data::*; @@ -40,31 +38,6 @@ impl NetworkConfig { version: 0, } } - - pub(crate) fn migrate_from_021(old: garage_rpc_021::ring::NetworkConfig) -> Self { - let members = old - .members - .into_iter() - .map(|(id, conf)| { - ( - Hash::try_from(id.as_slice()).unwrap(), - NetworkConfigEntry { - zone: conf.datacenter, - capacity: if conf.capacity == 0 { - None - } else { - Some(conf.capacity) - }, - tag: conf.tag, - }, - ) - }) - .collect(); - Self { - members, - version: old.version, - } - } } /// The overall configuration of one (possibly remote) node @@ -100,7 +73,7 @@ pub struct Ring { pub config: NetworkConfig, // Internal order of nodes used to make a more compact representation of the ring - nodes: Vec<NodeID>, + nodes: Vec<Uuid>, // The list of entries in the ring ring: Vec<RingEntry>, @@ -262,11 +235,6 @@ impl Ring { }) .collect::<Vec<_>>(); - let nodes = nodes - .iter() - .map(|id| NodeID::from_slice(id.as_slice()).unwrap()) - .collect::<Vec<_>>(); - Self { replication_factor, config, @@ -298,7 +266,7 @@ impl Ring { } /// Walk the ring to find the n servers in which data should be replicated - pub fn get_nodes(&self, position: &Hash, n: usize) -> Vec<NodeID> { + pub fn get_nodes(&self, position: &Hash, n: usize) -> Vec<Uuid> { if self.ring.len() != 1 << PARTITION_BITS { warn!("Ring not yet ready, read/writes will be lost!"); return vec![]; diff --git a/src/rpc/rpc_helper.rs b/src/rpc/rpc_helper.rs index c9458ee6..9f735ab4 100644 --- a/src/rpc/rpc_helper.rs +++ b/src/rpc/rpc_helper.rs @@ -8,13 +8,14 @@ use futures::stream::StreamExt; use futures_util::future::FutureExt; use tokio::select; -pub use netapp::endpoint::{Endpoint, EndpointHandler, Message}; +pub use netapp::endpoint::{Endpoint, EndpointHandler, Message as Rpc}; use netapp::peering::fullmesh::FullMeshPeeringStrategy; pub use netapp::proto::*; pub use netapp::{NetApp, NodeID}; use garage_util::background::BackgroundRunner; -use garage_util::error::{Error, RpcError}; +use garage_util::error::Error; +use garage_util::data::Uuid; const DEFAULT_TIMEOUT: Duration = Duration::from_secs(10); @@ -66,46 +67,47 @@ pub struct RpcHelper { } impl RpcHelper { - pub async fn call<M, H>( + pub async fn call<M, H, S>( &self, endpoint: &Endpoint<M, H>, - to: NodeID, + to: Uuid, msg: M, strat: RequestStrategy, - ) -> Result<M::Response, Error> + ) -> Result<S, Error> where - M: Message, + M: Rpc<Response = Result<S, Error>>, H: EndpointHandler<M>, { self.call_arc(endpoint, to, Arc::new(msg), strat).await } - pub async fn call_arc<M, H>( + pub async fn call_arc<M, H, S>( &self, endpoint: &Endpoint<M, H>, - to: NodeID, + to: Uuid, msg: Arc<M>, strat: RequestStrategy, - ) -> Result<M::Response, Error> + ) -> Result<S, Error> where - M: Message, + M: Rpc<Response = Result<S, Error>>, H: EndpointHandler<M>, { + let node_id = to.into(); select! { - res = endpoint.call(&to, &msg, strat.rs_priority) => Ok(res?), - _ = tokio::time::sleep(strat.rs_timeout) => Err(Error::Rpc(RpcError::Timeout)), + res = endpoint.call(&node_id, &msg, strat.rs_priority) => Ok(res??), + _ = tokio::time::sleep(strat.rs_timeout) => Err(Error::Timeout), } } - pub async fn call_many<M, H>( + pub async fn call_many<M, H, S>( &self, endpoint: &Endpoint<M, H>, - to: &[NodeID], + to: &[Uuid], msg: M, strat: RequestStrategy, - ) -> Vec<(NodeID, Result<M::Response, Error>)> + ) -> Vec<(Uuid, Result<S, Error>)> where - M: Message, + M: Rpc<Response = Result<S, Error>>, H: EndpointHandler<M>, { let msg = Arc::new(msg); @@ -120,37 +122,38 @@ impl RpcHelper { .collect::<Vec<_>>() } - pub async fn broadcast<M, H>( + pub async fn broadcast<M, H, S>( &self, endpoint: &Endpoint<M, H>, msg: M, strat: RequestStrategy, - ) -> Vec<(NodeID, Result<M::Response, Error>)> + ) -> Vec<(Uuid, Result<S, Error>)> where - M: Message, + M: Rpc<Response = Result<S, Error>>, H: EndpointHandler<M>, { let to = self .fullmesh .get_peer_list() .iter() - .map(|p| p.id) + .map(|p| p.id.into()) .collect::<Vec<_>>(); self.call_many(endpoint, &to[..], msg, strat).await } /// Make a RPC call to multiple servers, returning either a Vec of responses, or an error if /// strategy could not be respected due to too many errors - pub async fn try_call_many<M, H>( + pub async fn try_call_many<M, H, S>( &self, endpoint: &Arc<Endpoint<M, H>>, - to: &[NodeID], + to: &[Uuid], msg: M, strategy: RequestStrategy, - ) -> Result<Vec<M::Response>, Error> + ) -> Result<Vec<S>, Error> where - M: Message + 'static, + M: Rpc<Response = Result<S, Error>> + 'static, H: EndpointHandler<M> + 'static, + S: Send, { let msg = Arc::new(msg); let mut resp_stream = to @@ -200,7 +203,7 @@ impl RpcHelper { Ok(results) } else { let errors = errors.iter().map(|e| format!("{}", e)).collect::<Vec<_>>(); - Err(Error::from(RpcError::TooManyErrors(errors))) + Err(Error::TooManyErrors(errors)) } } } diff --git a/src/rpc/system.rs b/src/rpc/system.rs index 7ccec945..b95cff58 100644 --- a/src/rpc/system.rs +++ b/src/rpc/system.rs @@ -1,8 +1,9 @@ //! Module containing structs related to membership management +use std::collections::HashMap; use std::io::{Read, Write}; use std::net::SocketAddr; use std::path::{Path, PathBuf}; -use std::sync::Arc; +use std::sync::{Arc, RwLock}; use std::time::Duration; use arc_swap::ArcSwap; @@ -14,21 +15,24 @@ use sodiumoxide::crypto::sign::ed25519; use tokio::sync::watch; use tokio::sync::Mutex; -use netapp::endpoint::{Endpoint, EndpointHandler, Message}; +use netapp::endpoint::{Endpoint, EndpointHandler}; use netapp::peering::fullmesh::FullMeshPeeringStrategy; use netapp::proto::*; use netapp::{NetApp, NetworkKey, NodeID, NodeKey}; +use netapp::util::parse_and_resolve_peer_addr; use garage_util::background::BackgroundRunner; +use garage_util::data::Uuid; use garage_util::error::Error; use garage_util::persister::Persister; -//use garage_util::time::*; +use garage_util::time::*; -//use crate::consul::get_consul_nodes; +use crate::consul::*; use crate::ring::*; -use crate::rpc_helper::{RequestStrategy, RpcHelper}; +use crate::rpc_helper::*; const DISCOVERY_INTERVAL: Duration = Duration::from_secs(60); +const STATUS_EXCHANGE_INTERVAL: Duration = Duration::from_secs(10); const PING_TIMEOUT: Duration = Duration::from_secs(2); /// RPC endpoint used for calls related to membership @@ -39,33 +43,35 @@ pub const SYSTEM_RPC_PATH: &str = "garage_rpc/membership.rs/SystemRpc"; pub enum SystemRpc { /// Response to successfull advertisements Ok, - /// Error response - Error(String), + /// Request to connect to a specific node (in <pubkey>@<host>:<port> format) + Connect(String), /// Ask other node its config. Answered with AdvertiseConfig PullConfig, /// Advertise Garage status. Answered with another AdvertiseStatus. /// Exchanged with every node on a regular basis. - AdvertiseStatus(StateInfo), + AdvertiseStatus(NodeStatus), /// Advertisement of nodes config. Sent spontanously or in response to PullConfig AdvertiseConfig(NetworkConfig), /// Get known nodes states GetKnownNodes, /// Return known nodes - ReturnKnownNodes(Vec<(NodeID, SocketAddr, bool)>), + ReturnKnownNodes(Vec<KnownNodeInfo>), } -impl Message for SystemRpc { - type Response = SystemRpc; +impl Rpc for SystemRpc { + type Response = Result<SystemRpc, Error>; } /// This node's membership manager pub struct System { /// The id of this node - pub id: NodeID, + pub id: Uuid, persist_config: Persister<NetworkConfig>, + persist_peer_list: Persister<Vec<(Uuid, SocketAddr)>>, - state_info: ArcSwap<StateInfo>, + local_status: ArcSwap<NodeStatus>, + node_status: RwLock<HashMap<Uuid, (u64, NodeStatus)>>, pub netapp: Arc<NetApp>, fullmesh: Arc<FullMeshPeeringStrategy>, @@ -74,6 +80,7 @@ pub struct System { system_endpoint: Arc<Endpoint<SystemRpc, System>>, rpc_listen_addr: SocketAddr, + rpc_public_addr: Option<SocketAddr>, bootstrap_peers: Vec<(NodeID, SocketAddr)>, consul_host: Option<String>, consul_service_name: Option<String>, @@ -88,7 +95,7 @@ pub struct System { } #[derive(Debug, Clone, Serialize, Deserialize)] -pub struct StateInfo { +pub struct NodeStatus { /// Hostname of the node pub hostname: String, /// Replication factor configured on the node @@ -97,26 +104,34 @@ pub struct StateInfo { pub config_version: u64, } +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct KnownNodeInfo { + pub id: Uuid, + pub addr: SocketAddr, + pub is_up: bool, + pub status: NodeStatus, +} + fn gen_node_key(metadata_dir: &Path) -> Result<NodeKey, Error> { - let mut id_file = metadata_dir.to_path_buf(); - id_file.push("node_id"); - if id_file.as_path().exists() { - let mut f = std::fs::File::open(id_file.as_path())?; + let mut key_file = metadata_dir.to_path_buf(); + key_file.push("node_key"); + if key_file.as_path().exists() { + let mut f = std::fs::File::open(key_file.as_path())?; let mut d = vec![]; f.read_to_end(&mut d)?; if d.len() != 64 { - return Err(Error::Message("Corrupt node_id file".to_string())); + return Err(Error::Message("Corrupt node_key file".to_string())); } let mut key = [0u8; 64]; key.copy_from_slice(&d[..]); Ok(NodeKey::from_slice(&key[..]).unwrap()) } else { - let (key, _) = ed25519::gen_keypair(); + let (_, key) = ed25519::gen_keypair(); - let mut f = std::fs::File::create(id_file.as_path())?; + let mut f = std::fs::File::create(key_file.as_path())?; f.write_all(&key[..])?; - Ok(NodeKey::from_slice(&key[..]).unwrap()) + Ok(key) } } @@ -128,6 +143,7 @@ impl System { background: Arc<BackgroundRunner>, replication_factor: usize, rpc_listen_addr: SocketAddr, + rpc_public_address: Option<SocketAddr>, bootstrap_peers: Vec<(NodeID, SocketAddr)>, consul_host: Option<String>, consul_service_name: Option<String>, @@ -136,29 +152,20 @@ impl System { info!("Node public key: {}", hex::encode(&node_key.public_key())); let persist_config = Persister::new(&metadata_dir, "network_config"); + let persist_peer_list = Persister::new(&metadata_dir, "peer_list"); let net_config = match persist_config.load() { Ok(x) => x, Err(e) => { - match Persister::<garage_rpc_021::ring::NetworkConfig>::new( - &metadata_dir, - "network_config", - ) - .load() - { - Ok(old_config) => NetworkConfig::migrate_from_021(old_config), - Err(e2) => { - info!( - "No valid previous network configuration stored ({}, {}), starting fresh.", - e, e2 - ); - NetworkConfig::new() - } - } + info!( + "No valid previous network configuration stored ({}), starting fresh.", + e + ); + NetworkConfig::new() } }; - let state_info = StateInfo { + let local_status = NodeStatus { hostname: gethostname::gethostname() .into_string() .unwrap_or_else(|_| "<invalid utf-8>".to_string()), @@ -169,15 +176,27 @@ impl System { let ring = Ring::new(net_config, replication_factor); let (update_ring, ring) = watch::channel(Arc::new(ring)); + if let Some(addr) = rpc_public_address { + println!("{}@{}", hex::encode(&node_key.public_key()), addr); + } else { + println!("{}", hex::encode(&node_key.public_key())); + } + let netapp = NetApp::new(network_key, node_key); - let fullmesh = FullMeshPeeringStrategy::new(netapp.clone(), bootstrap_peers.clone()); + let fullmesh = FullMeshPeeringStrategy::new( + netapp.clone(), + bootstrap_peers.clone(), + rpc_public_address, + ); let system_endpoint = netapp.endpoint(SYSTEM_RPC_PATH.into()); let sys = Arc::new(System { - id: netapp.id.clone(), + id: netapp.id.into(), persist_config, - state_info: ArcSwap::new(Arc::new(state_info)), + persist_peer_list, + local_status: ArcSwap::new(Arc::new(local_status)), + node_status: RwLock::new(HashMap::new()), netapp: netapp.clone(), fullmesh: fullmesh.clone(), rpc: RpcHelper { @@ -187,6 +206,7 @@ impl System { system_endpoint, replication_factor, rpc_listen_addr, + rpc_public_addr: rpc_public_address, bootstrap_peers, consul_host, consul_service_name, @@ -206,11 +226,38 @@ impl System { .listen(self.rpc_listen_addr, None, must_exit.clone()), self.fullmesh.clone().run(must_exit.clone()), self.discovery_loop(must_exit.clone()), + self.status_exchange_loop(must_exit.clone()), ); } // ---- INTERNALS ---- + async fn advertise_to_consul(self: Arc<Self>) -> Result<(), Error> { + let (consul_host, consul_service_name) = + match (&self.consul_host, &self.consul_service_name) { + (Some(ch), Some(csn)) => (ch, csn), + _ => return Ok(()), + }; + + let rpc_public_addr = match self.rpc_public_addr { + Some(addr) => addr, + None => { + warn!("Not advertising to Consul because rpc_public_addr is not defined in config file."); + return Ok(()); + } + }; + + publish_consul_service( + consul_host, + consul_service_name, + self.netapp.id, + &self.local_status.load_full().hostname, + rpc_public_addr, + ) + .await + .map_err(|e| Error::Message(format!("Error while publishing Consul service: {}", e))) + } + /// Save network configuration to disc async fn save_network_config(self: Arc<Self>) -> Result<(), Error> { let ring: Arc<Ring> = self.ring.borrow().clone(); @@ -221,12 +268,27 @@ impl System { Ok(()) } - fn update_state_info(&self) { - let mut new_si: StateInfo = self.state_info.load().as_ref().clone(); + fn update_local_status(&self) { + let mut new_si: NodeStatus = self.local_status.load().as_ref().clone(); let ring = self.ring.borrow(); new_si.config_version = ring.config.version; - self.state_info.swap(Arc::new(new_si)); + self.local_status.swap(Arc::new(new_si)); + } + + async fn handle_connect(&self, node: &str) -> Result<SystemRpc, Error> { + let (pubkey, addrs) = parse_and_resolve_peer_addr(node) + .ok_or_else(|| Error::Message(format!("Unable to parse or resolve node specification: {}", node)))?; + let mut errors = vec![]; + for ip in addrs.iter() { + match self.netapp.clone().try_connect(*ip, pubkey).await { + Ok(()) => return Ok(SystemRpc::Ok), + Err(e) => { + errors.push((*ip, e)); + } + } + } + return Err(Error::Message(format!("Could not connect to specified peers. Errors: {:?}", errors))); } fn handle_pull_config(&self) -> SystemRpc { @@ -234,6 +296,58 @@ impl System { SystemRpc::AdvertiseConfig(ring.config.clone()) } + fn handle_get_known_nodes(&self) -> SystemRpc { + let node_status = self.node_status.read().unwrap(); + let known_nodes = + self.fullmesh + .get_peer_list() + .iter() + .map(|n| KnownNodeInfo { + id: n.id.into(), + addr: n.addr, + is_up: n.is_up(), + status: node_status.get(&n.id.into()).cloned().map(|(_, st)| st).unwrap_or( + NodeStatus { + hostname: "?".to_string(), + replication_factor: 0, + config_version: 0, + }, + ), + }) + .collect::<Vec<_>>(); + SystemRpc::ReturnKnownNodes(known_nodes) + } + + async fn handle_advertise_status( + self: &Arc<Self>, + from: Uuid, + info: &NodeStatus, + ) -> Result<SystemRpc, Error> { + let local_info = self.local_status.load(); + + if local_info.replication_factor < info.replication_factor { + error!("Some node have a higher replication factor ({}) than this one ({}). This is not supported and might lead to bugs", + info.replication_factor, + local_info.replication_factor); + std::process::exit(1); + } + + if info.config_version > local_info.config_version { + let self2 = self.clone(); + self.background.spawn_cancellable(async move { + self2.pull_config(from).await; + Ok(()) + }); + } + + self.node_status + .write() + .unwrap() + .insert(from, (now_msec(), info.clone())); + + Ok(SystemRpc::Ok) + } + async fn handle_advertise_config( self: Arc<Self>, adv: &NetworkConfig, @@ -265,13 +379,32 @@ impl System { Ok(SystemRpc::Ok) } - async fn discovery_loop(&self, mut stop_signal: watch::Receiver<bool>) { - /* TODO + async fn status_exchange_loop(&self, mut stop_signal: watch::Receiver<bool>) { + while !*stop_signal.borrow() { + let restart_at = tokio::time::sleep(STATUS_EXCHANGE_INTERVAL); + + self.update_local_status(); + let local_status: NodeStatus = self.local_status.load().as_ref().clone(); + self.rpc + .broadcast( + &self.system_endpoint, + SystemRpc::AdvertiseStatus(local_status), + RequestStrategy::with_priority(PRIO_HIGH).with_timeout(PING_TIMEOUT), + ) + .await; + + select! { + _ = restart_at.fuse() => {}, + _ = stop_signal.changed().fuse() => {}, + } + } + } + + async fn discovery_loop(self: &Arc<Self>, mut stop_signal: watch::Receiver<bool>) { let consul_config = match (&self.consul_host, &self.consul_service_name) { (Some(ch), Some(csn)) => Some((ch.clone(), csn.clone())), _ => None, }; - */ while !*stop_signal.borrow() { let not_configured = self.ring.borrow().config.members.is_empty(); @@ -286,34 +419,42 @@ impl System { if not_configured || no_peers || bad_peers { info!("Doing a bootstrap/discovery step (not_configured: {}, no_peers: {}, bad_peers: {})", not_configured, no_peers, bad_peers); - let ping_list = self.bootstrap_peers.clone(); + let mut ping_list = self.bootstrap_peers.clone(); - /* - *TODO bring this back: persisted list of peers - if let Ok(peers) = self.persist_status.load_async().await { - ping_list.extend(peers.iter().map(|x| (x.addr, Some(x.id)))); + // Add peer list from list stored on disk + if let Ok(peers) = self.persist_peer_list.load_async().await { + ping_list.extend(peers.iter().map(|(id, addr)| ((*id).into(), *addr))) } - */ - /* - * TODO bring this back: get peers from consul + // Fetch peer list from Consul if let Some((consul_host, consul_service_name)) = &consul_config { match get_consul_nodes(consul_host, consul_service_name).await { Ok(node_list) => { - ping_list.extend(node_list.iter().map(|a| (*a, None))); + ping_list.extend(node_list); } Err(e) => { warn!("Could not retrieve node list from Consul: {}", e); } } } - */ for (node_id, node_addr) in ping_list { tokio::spawn(self.netapp.clone().try_connect(node_addr, node_id)); } } + let peer_list = self + .fullmesh + .get_peer_list() + .iter() + .map(|n| (n.id.into(), n.addr)) + .collect::<Vec<_>>(); + if let Err(e) = self.persist_peer_list.save_async(&peer_list).await { + warn!("Could not save peer list to file: {}", e); + } + + self.background.spawn(self.clone().advertise_to_consul()); + let restart_at = tokio::time::sleep(DISCOVERY_INTERVAL); select! { _ = restart_at.fuse() => {}, @@ -322,7 +463,7 @@ impl System { } } - async fn pull_config(self: Arc<Self>, peer: NodeID) { + async fn pull_config(self: Arc<Self>, peer: Uuid) { let resp = self .rpc .call( @@ -340,24 +481,14 @@ impl System { #[async_trait] impl EndpointHandler<SystemRpc> for System { - async fn handle(self: &Arc<Self>, msg: &SystemRpc, _from: NodeID) -> SystemRpc { - let resp = match msg { + async fn handle(self: &Arc<Self>, msg: &SystemRpc, from: NodeID) -> Result<SystemRpc, Error> { + match msg { + SystemRpc::Connect(node) => self.handle_connect(node).await, SystemRpc::PullConfig => Ok(self.handle_pull_config()), + SystemRpc::AdvertiseStatus(adv) => self.handle_advertise_status(from.into(), adv).await, SystemRpc::AdvertiseConfig(adv) => self.clone().handle_advertise_config(&adv).await, - SystemRpc::GetKnownNodes => { - let known_nodes = self - .fullmesh - .get_peer_list() - .iter() - .map(|n| (n.id, n.addr, n.is_up())) - .collect::<Vec<_>>(); - Ok(SystemRpc::ReturnKnownNodes(known_nodes)) - } + SystemRpc::GetKnownNodes => Ok(self.handle_get_known_nodes()), _ => Err(Error::BadRpc("Unexpected RPC message".to_string())), - }; - match resp { - Ok(r) => r, - Err(e) => SystemRpc::Error(format!("{}", e)), } } } diff --git a/src/table/gc.rs b/src/table/gc.rs index c03648ef..9b3d60ff 100644 --- a/src/table/gc.rs +++ b/src/table/gc.rs @@ -36,11 +36,10 @@ enum GcRpc { Update(Vec<ByteBuf>), DeleteIfEqualHash(Vec<(ByteBuf, Hash)>), Ok, - Error(String), } -impl Message for GcRpc { - type Response = GcRpc; +impl Rpc for GcRpc { + type Response = Result<GcRpc, Error>; } impl<F, R> TableGc<F, R> @@ -168,7 +167,7 @@ where async fn try_send_and_delete( &self, - nodes: Vec<NodeID>, + nodes: Vec<Uuid>, items: Vec<(ByteBuf, Hash, ByteBuf)>, ) -> Result<(), Error> { let n_items = items.len(); @@ -224,8 +223,15 @@ where .compare_and_swap::<_, _, Vec<u8>>(key, Some(vhash), None)?; Ok(()) } +} - async fn handle_rpc(&self, message: &GcRpc) -> Result<GcRpc, Error> { +#[async_trait] +impl<F, R> EndpointHandler<GcRpc> for TableGc<F, R> +where + F: TableSchema + 'static, + R: TableReplication + 'static, +{ + async fn handle(self: &Arc<Self>, message: &GcRpc, _from: NodeID) -> Result<GcRpc, Error> { match message { GcRpc::Update(items) => { self.data.update_many(items)?; @@ -242,16 +248,3 @@ where } } } - -#[async_trait] -impl<F, R> EndpointHandler<GcRpc> for TableGc<F, R> -where - F: TableSchema + 'static, - R: TableReplication + 'static, -{ - async fn handle(self: &Arc<Self>, message: &GcRpc, _from: NodeID) -> GcRpc { - self.handle_rpc(message) - .await - .unwrap_or_else(|e| GcRpc::Error(format!("{}", e))) - } -} diff --git a/src/table/replication/fullcopy.rs b/src/table/replication/fullcopy.rs index b41c5360..ae6851fb 100644 --- a/src/table/replication/fullcopy.rs +++ b/src/table/replication/fullcopy.rs @@ -2,7 +2,6 @@ use std::sync::Arc; use garage_rpc::ring::*; use garage_rpc::system::System; -use garage_rpc::NodeID; use garage_util::data::*; use crate::replication::*; @@ -20,19 +19,19 @@ pub struct TableFullReplication { } impl TableReplication for TableFullReplication { - fn read_nodes(&self, _hash: &Hash) -> Vec<NodeID> { + fn read_nodes(&self, _hash: &Hash) -> Vec<Uuid> { vec![self.system.id] } fn read_quorum(&self) -> usize { 1 } - fn write_nodes(&self, _hash: &Hash) -> Vec<NodeID> { + fn write_nodes(&self, _hash: &Hash) -> Vec<Uuid> { let ring = self.system.ring.borrow(); ring.config .members .keys() - .map(|id| NodeID::from_slice(id.as_slice()).unwrap()) + .cloned() .collect::<Vec<_>>() } fn write_quorum(&self) -> usize { diff --git a/src/table/replication/parameters.rs b/src/table/replication/parameters.rs index 7fdfce67..3740d947 100644 --- a/src/table/replication/parameters.rs +++ b/src/table/replication/parameters.rs @@ -1,5 +1,4 @@ use garage_rpc::ring::*; -use garage_rpc::NodeID; use garage_util::data::*; /// Trait to describe how a table shall be replicated @@ -8,12 +7,12 @@ pub trait TableReplication: Send + Sync { // To understand various replication methods /// Which nodes to send read requests to - fn read_nodes(&self, hash: &Hash) -> Vec<NodeID>; + fn read_nodes(&self, hash: &Hash) -> Vec<Uuid>; /// Responses needed to consider a read succesfull fn read_quorum(&self) -> usize; /// Which nodes to send writes to - fn write_nodes(&self, hash: &Hash) -> Vec<NodeID>; + fn write_nodes(&self, hash: &Hash) -> Vec<Uuid>; /// Responses needed to consider a write succesfull fn write_quorum(&self) -> usize; fn max_write_errors(&self) -> usize; diff --git a/src/table/replication/sharded.rs b/src/table/replication/sharded.rs index ffe686a5..75043a17 100644 --- a/src/table/replication/sharded.rs +++ b/src/table/replication/sharded.rs @@ -2,7 +2,6 @@ use std::sync::Arc; use garage_rpc::ring::*; use garage_rpc::system::System; -use garage_rpc::NodeID; use garage_util::data::*; use crate::replication::*; @@ -26,7 +25,7 @@ pub struct TableShardedReplication { } impl TableReplication for TableShardedReplication { - fn read_nodes(&self, hash: &Hash) -> Vec<NodeID> { + fn read_nodes(&self, hash: &Hash) -> Vec<Uuid> { let ring = self.system.ring.borrow(); ring.get_nodes(&hash, self.replication_factor) } @@ -34,7 +33,7 @@ impl TableReplication for TableShardedReplication { self.read_quorum } - fn write_nodes(&self, hash: &Hash) -> Vec<NodeID> { + fn write_nodes(&self, hash: &Hash) -> Vec<Uuid> { let ring = self.system.ring.borrow(); ring.get_nodes(&hash, self.replication_factor) } diff --git a/src/table/sync.rs b/src/table/sync.rs index c5db0987..4fcdc528 100644 --- a/src/table/sync.rs +++ b/src/table/sync.rs @@ -45,11 +45,10 @@ pub(crate) enum SyncRpc { Node(MerkleNodeKey, MerkleNode), Items(Vec<Arc<ByteBuf>>), Ok, - Error(String), } -impl Message for SyncRpc { - type Response = SyncRpc; +impl Rpc for SyncRpc { + type Response = Result<SyncRpc, Error>; } struct SyncTodo { @@ -305,7 +304,7 @@ where async fn offload_items( self: &Arc<Self>, items: &[(Vec<u8>, Arc<ByteBuf>)], - nodes: &[NodeID], + nodes: &[Uuid], ) -> Result<(), Error> { let values = items.iter().map(|(_k, v)| v.clone()).collect::<Vec<_>>(); @@ -354,7 +353,7 @@ where async fn do_sync_with( self: Arc<Self>, partition: TodoPartition, - who: NodeID, + who: Uuid, must_exit: watch::Receiver<bool>, ) -> Result<(), Error> { let (root_ck_key, root_ck) = self.get_root_ck(partition.partition)?; @@ -480,7 +479,7 @@ where Ok(()) } - async fn send_items(&self, who: NodeID, item_value_list: Vec<Vec<u8>>) -> Result<(), Error> { + async fn send_items(&self, who: Uuid, item_value_list: Vec<Vec<u8>>) -> Result<(), Error> { info!( "({}) Sending {} items to {:?}", self.data.name, @@ -513,9 +512,17 @@ where ))) } } +} + +// ======= SYNCHRONIZATION PROCEDURE -- RECEIVER SIDE ====== - // ======= SYNCHRONIZATION PROCEDURE -- RECEIVER SIDE ====== - async fn handle_rpc(self: &Arc<Self>, message: &SyncRpc) -> Result<SyncRpc, Error> { +#[async_trait] +impl<F, R> EndpointHandler<SyncRpc> for TableSyncer<F, R> +where + F: TableSchema + 'static, + R: TableReplication + 'static, +{ + async fn handle(self: &Arc<Self>, message: &SyncRpc, _from: NodeID) -> Result<SyncRpc, Error> { match message { SyncRpc::RootCkHash(range, h) => { let (_root_ck_key, root_ck) = self.get_root_ck(*range)?; @@ -535,19 +542,6 @@ where } } -#[async_trait] -impl<F, R> EndpointHandler<SyncRpc> for TableSyncer<F, R> -where - F: TableSchema + 'static, - R: TableReplication + 'static, -{ - async fn handle(self: &Arc<Self>, message: &SyncRpc, _from: NodeID) -> SyncRpc { - self.handle_rpc(message) - .await - .unwrap_or_else(|e| SyncRpc::Error(format!("{}", e))) - } -} - impl SyncTodo { fn add_full_sync<F: TableSchema, R: TableReplication>( &mut self, diff --git a/src/table/table.rs b/src/table/table.rs index ad263343..e1357471 100644 --- a/src/table/table.rs +++ b/src/table/table.rs @@ -34,7 +34,6 @@ pub struct Table<F: TableSchema + 'static, R: TableReplication + 'static> { #[derive(Serialize, Deserialize)] pub(crate) enum TableRpc<F: TableSchema> { Ok, - Error(String), ReadEntry(F::P, F::S), ReadEntryResponse(Option<ByteBuf>), @@ -45,8 +44,8 @@ pub(crate) enum TableRpc<F: TableSchema> { Update(Vec<Arc<ByteBuf>>), } -impl<F: TableSchema> Message for TableRpc<F> { - type Response = TableRpc<F>; +impl<F: TableSchema> Rpc for TableRpc<F> { + type Response = Result<TableRpc<F>, Error>; } impl<F, R> Table<F, R> @@ -277,7 +276,7 @@ where // =============== UTILITY FUNCTION FOR CLIENT OPERATIONS =============== - async fn repair_on_read(&self, who: &[NodeID], what: F::E) -> Result<(), Error> { + async fn repair_on_read(&self, who: &[Uuid], what: F::E) -> Result<(), Error> { let what_enc = Arc::new(ByteBuf::from(rmp_to_vec_all_named(&what)?)); self.system .rpc @@ -292,10 +291,19 @@ where .await?; Ok(()) } +} - // ====== RPC HANDLER ===== - // - async fn handle_rpc(self: &Arc<Self>, msg: &TableRpc<F>) -> Result<TableRpc<F>, Error> { +#[async_trait] +impl<F, R> EndpointHandler<TableRpc<F>> for Table<F, R> +where + F: TableSchema + 'static, + R: TableReplication + 'static, +{ + async fn handle( + self: &Arc<Self>, + msg: &TableRpc<F>, + _from: NodeID, + ) -> Result<TableRpc<F>, Error> { match msg { TableRpc::ReadEntry(key, sort_key) => { let value = self.data.read_entry(key, sort_key)?; @@ -313,16 +321,3 @@ where } } } - -#[async_trait] -impl<F, R> EndpointHandler<TableRpc<F>> for Table<F, R> -where - F: TableSchema + 'static, - R: TableReplication + 'static, -{ - async fn handle(self: &Arc<Self>, msg: &TableRpc<F>, _from: NodeID) -> TableRpc<F> { - self.handle_rpc(msg) - .await - .unwrap_or_else(|e| TableRpc::<F>::Error(format!("{}", e))) - } -} diff --git a/src/util/config.rs b/src/util/config.rs index ee153dfa..08ece5b7 100644 --- a/src/util/config.rs +++ b/src/util/config.rs @@ -7,6 +7,7 @@ use serde::de::Error as SerdeError; use serde::{de, Deserialize}; use netapp::NodeID; +use netapp::util::parse_and_resolve_peer_addr; use crate::error::Error; @@ -34,11 +35,13 @@ pub struct Config { /// Address to bind for RPC pub rpc_bind_addr: SocketAddr, + /// Public IP address of this node + pub rpc_public_addr: Option<SocketAddr>, /// Bootstrap peers RPC address #[serde(deserialize_with = "deserialize_vec_addr")] pub bootstrap_peers: Vec<(NodeID, SocketAddr)>, - /// Consule host to connect to to discover more peers + /// Consul host to connect to to discover more peers pub consul_host: Option<String>, /// Consul service name to use pub consul_service_name: Option<String>, @@ -111,26 +114,13 @@ fn deserialize_vec_addr<'de, D>(deserializer: D) -> Result<Vec<(NodeID, SocketAd where D: de::Deserializer<'de>, { - use std::net::ToSocketAddrs; - let mut ret = vec![]; for peer in <Vec<&str>>::deserialize(deserializer)? { - let delim = peer - .find('@') - .ok_or_else(|| D::Error::custom("Invalid bootstrap peer: public key not specified"))?; - let (key, host) = peer.split_at(delim); - let pubkey = NodeID::from_slice(&hex::decode(&key).map_err(D::Error::custom)?) - .ok_or_else(|| D::Error::custom("Invalid bootstrap peer public key"))?; - let hosts = host[1..] - .to_socket_addrs() - .map_err(D::Error::custom)? - .collect::<Vec<_>>(); - if hosts.is_empty() { - return Err(D::Error::custom(format!("Error resolving {}", &host[1..]))); - } - for host in hosts { - ret.push((pubkey.clone(), host)); + let (pubkey, addrs) = parse_and_resolve_peer_addr(peer) + .ok_or_else(|| D::Error::custom(format!("Unable to parse or resolve peer: {}", peer)))?; + for ip in addrs { + ret.push((pubkey.clone(), ip)); } } diff --git a/src/util/data.rs b/src/util/data.rs index 6df51cd0..d4fe0009 100644 --- a/src/util/data.rs +++ b/src/util/data.rs @@ -87,6 +87,18 @@ impl FixedBytes32 { } } +impl From<netapp::NodeID> for FixedBytes32 { + fn from(node_id: netapp::NodeID) -> FixedBytes32 { + FixedBytes32::try_from(node_id.as_ref()).unwrap() + } +} + +impl Into<netapp::NodeID> for FixedBytes32 { + fn into(self) -> netapp::NodeID { + netapp::NodeID::from_slice(self.as_slice()).unwrap() + } +} + /// A 32 bytes UUID pub type Uuid = FixedBytes32; /// A 256 bit cryptographic hash, can be sha256 or blake2 depending on provenance diff --git a/src/util/error.rs b/src/util/error.rs index 804a0d4d..390327f1 100644 --- a/src/util/error.rs +++ b/src/util/error.rs @@ -1,34 +1,12 @@ //! Module containing error types used in Garage -use err_derive::Error; -use hyper::StatusCode; +use std::fmt; use std::io; -use crate::data::*; - -/// RPC related errors -#[derive(Debug, Error)] -pub enum RpcError { - #[error(display = "Node is down: {:?}.", _0)] - NodeDown(Uuid), - - #[error(display = "Timeout")] - Timeout, - - #[error(display = "HTTP error: {}", _0)] - Http(#[error(source)] http::Error), - - #[error(display = "Hyper error: {}", _0)] - Hyper(#[error(source)] hyper::Error), +use err_derive::Error; - #[error(display = "Messagepack encode error: {}", _0)] - RmpEncode(#[error(source)] rmp_serde::encode::Error), +use serde::{de::Visitor, Deserialize, Deserializer, Serialize, Serializer}; - #[error(display = "Messagepack decode error: {}", _0)] - RmpDecode(#[error(source)] rmp_serde::decode::Error), - - #[error(display = "Too many errors: {:?}", _0)] - TooManyErrors(Vec<String>), -} +use crate::data::*; /// Regroup all Garage errors #[derive(Debug, Error)] @@ -63,11 +41,14 @@ pub enum Error { #[error(display = "Tokio join error: {}", _0)] TokioJoin(#[error(source)] tokio::task::JoinError), - #[error(display = "RPC call error: {}", _0)] - Rpc(#[error(source)] RpcError), + #[error(display = "Remote error: {}", _0)] + RemoteError(String), + + #[error(display = "Timeout")] + Timeout, - #[error(display = "Remote error: {} (status code {})", _0, _1)] - RemoteError(String, StatusCode), + #[error(display = "Too many errors: {:?}", _0)] + TooManyErrors(Vec<String>), #[error(display = "Bad RPC: {}", _0)] BadRpc(String), @@ -99,3 +80,44 @@ impl<T> From<tokio::sync::mpsc::error::SendError<T>> for Error { Error::Message("MPSC send error".to_string()) } } + +// Custom serialization for our error type, for use in RPC. +// Errors are serialized as a string of their Display representation. +// Upon deserialization, they all become a RemoteError with the +// given representation. + +impl Serialize for Error { + fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> + where + S: Serializer, + { + serializer.serialize_str(&format!("{}", self)) + } +} + +impl<'de> Deserialize<'de> for Error { + fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> + where + D: Deserializer<'de>, + { + deserializer.deserialize_string(ErrorVisitor) + } +} + +struct ErrorVisitor; + +impl<'de> Visitor<'de> for ErrorVisitor { + type Value = Error; + + fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "a string that represents an error value") + } + + fn visit_str<E>(self, error_msg: &str) -> Result<Self::Value, E> { + Ok(Error::RemoteError(error_msg.to_string())) + } + + fn visit_string<E>(self, error_msg: String) -> Result<Self::Value, E> { + Ok(Error::RemoteError(error_msg)) + } +} diff --git a/src/web/Cargo.toml b/src/web/Cargo.toml index 99b4481b..f5b40370 100644 --- a/src/web/Cargo.toml +++ b/src/web/Cargo.toml @@ -26,4 +26,4 @@ percent-encoding = "2.1.0" futures = "0.3" http = "0.2" -hyper = "0.14" +hyper = { version = "0.14", features = ["server", "http1", "runtime", "tcp", "stream"] } diff --git a/src/web/error.rs b/src/web/error.rs index 08717ce1..5ac27914 100644 --- a/src/web/error.rs +++ b/src/web/error.rs @@ -38,7 +38,9 @@ impl Error { match self { Error::NotFound => StatusCode::NOT_FOUND, Error::ApiError(e) => e.http_status_code(), - Error::InternalError(GarageError::Rpc(_)) => StatusCode::SERVICE_UNAVAILABLE, + Error::InternalError( + GarageError::Timeout | GarageError::RemoteError(_) | GarageError::TooManyErrors(_), + ) => StatusCode::SERVICE_UNAVAILABLE, Error::InternalError(_) => StatusCode::INTERNAL_SERVER_ERROR, _ => StatusCode::BAD_REQUEST, } |