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-rw-r--r--src/rpc/Cargo.toml5
-rw-r--r--src/rpc/rpc_helper.rs186
-rw-r--r--src/rpc/system.rs7
3 files changed, 104 insertions, 94 deletions
diff --git a/src/rpc/Cargo.toml b/src/rpc/Cargo.toml
index 80a1975c..6f3c81ed 100644
--- a/src/rpc/Cargo.toml
+++ b/src/rpc/Cargo.toml
@@ -45,9 +45,8 @@ tokio = { version = "1.0", default-features = false, features = ["rt", "rt-multi
tokio-stream = { version = "0.1", features = ["net"] }
opentelemetry = "0.17"
-#netapp = { version = "0.3.0", git = "https://git.deuxfleurs.fr/lx/netapp" }
-#netapp = { version = "0.4", path = "../../../netapp", features = ["telemetry"] }
-netapp = { version = "0.4.4", features = ["telemetry"] }
+#netapp = { version = "0.4.4", features = ["telemetry"] }
+netapp = { version = "0.5.0", git = "https://git.deuxfleurs.fr/lx/netapp", branch = "stream-body", features = ["telemetry"] }
hyper = { version = "0.14", features = ["client", "http1", "runtime", "tcp"] }
diff --git a/src/rpc/rpc_helper.rs b/src/rpc/rpc_helper.rs
index 34717d3b..ddabd636 100644
--- a/src/rpc/rpc_helper.rs
+++ b/src/rpc/rpc_helper.rs
@@ -15,10 +15,13 @@ use opentelemetry::{
Context,
};
-pub use netapp::endpoint::{Endpoint, EndpointHandler, Message as Rpc};
+pub use netapp::endpoint::{Endpoint, EndpointHandler, StreamingEndpointHandler};
+use netapp::message::IntoReq;
+pub use netapp::message::{
+ Message as Rpc, Req, RequestPriority, Resp, PRIO_BACKGROUND, PRIO_HIGH, PRIO_NORMAL,
+};
use netapp::peering::fullmesh::FullMeshPeeringStrategy;
-pub use netapp::proto::*;
-pub use netapp::{NetApp, NodeID};
+pub use netapp::{self, NetApp, NodeID};
use garage_util::background::BackgroundRunner;
use garage_util::data::*;
@@ -30,10 +33,8 @@ use crate::ring::Ring;
const DEFAULT_TIMEOUT: Duration = Duration::from_secs(10);
-// Try to never have more than 200MB of outgoing requests
-// buffered at the same time. Other requests are queued until
-// space is freed.
-const REQUEST_BUFFER_SIZE: usize = 200 * 1024 * 1024;
+// Don't allow more than 100 concurrent outgoing RPCs.
+const MAX_CONCURRENT_REQUESTS: usize = 100;
/// Strategy to apply when making RPC
#[derive(Copy, Clone)]
@@ -95,7 +96,7 @@ impl RpcHelper {
background: Arc<BackgroundRunner>,
ring: watch::Receiver<Arc<Ring>>,
) -> Self {
- let sem = Arc::new(Semaphore::new(REQUEST_BUFFER_SIZE));
+ let sem = Arc::new(Semaphore::new(MAX_CONCURRENT_REQUESTS));
let metrics = RpcMetrics::new(sem.clone());
@@ -109,30 +110,17 @@ impl RpcHelper {
}))
}
- pub async fn call<M, H, S>(
+ pub async fn call<M, N, H, S>(
&self,
endpoint: &Endpoint<M, H>,
to: Uuid,
- msg: M,
+ msg: N,
strat: RequestStrategy,
) -> Result<S, Error>
where
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, S>(
- &self,
- endpoint: &Endpoint<M, H>,
- to: Uuid,
- msg: Arc<M>,
- strat: RequestStrategy,
- ) -> Result<S, Error>
- where
- M: Rpc<Response = Result<S, Error>>,
- H: EndpointHandler<M>,
+ N: IntoReq<M> + Send,
+ H: StreamingEndpointHandler<M>,
{
let metric_tags = [
KeyValue::new("rpc_endpoint", endpoint.path().to_string()),
@@ -140,11 +128,10 @@ impl RpcHelper {
KeyValue::new("to", format!("{:?}", to)),
];
- let msg_size = rmp_to_vec_all_named(&msg)?.len() as u32;
let permit = self
.0
.request_buffer_semaphore
- .acquire_many(msg_size)
+ .acquire()
.record_duration(&self.0.metrics.rpc_queueing_time, &metric_tags)
.await?;
@@ -152,7 +139,7 @@ impl RpcHelper {
let node_id = to.into();
let rpc_call = endpoint
- .call(&node_id, msg, strat.rs_priority)
+ .call_streaming(&node_id, msg, strat.rs_priority)
.record_duration(&self.0.metrics.rpc_duration, &metric_tags);
select! {
@@ -162,7 +149,7 @@ impl RpcHelper {
if res.is_err() {
self.0.metrics.rpc_netapp_error_counter.add(1, &metric_tags);
}
- let res = res?;
+ let res = res?.into_msg();
if res.is_err() {
self.0.metrics.rpc_garage_error_counter.add(1, &metric_tags);
@@ -178,38 +165,42 @@ impl RpcHelper {
}
}
- pub async fn call_many<M, H, S>(
+ pub async fn call_many<M, N, H, S>(
&self,
endpoint: &Endpoint<M, H>,
to: &[Uuid],
- msg: M,
+ msg: N,
strat: RequestStrategy,
- ) -> Vec<(Uuid, Result<S, Error>)>
+ ) -> Result<Vec<(Uuid, Result<S, Error>)>, Error>
where
M: Rpc<Response = Result<S, Error>>,
- H: EndpointHandler<M>,
+ N: IntoReq<M>,
+ H: StreamingEndpointHandler<M>,
{
- let msg = Arc::new(msg);
+ let msg = msg.into_req().map_err(netapp::error::Error::from)?;
+
let resps = join_all(
to.iter()
- .map(|to| self.call_arc(endpoint, *to, msg.clone(), strat)),
+ .map(|to| self.call(endpoint, *to, msg.clone(), strat)),
)
.await;
- to.iter()
+ Ok(to
+ .iter()
.cloned()
.zip(resps.into_iter())
- .collect::<Vec<_>>()
+ .collect::<Vec<_>>())
}
- pub async fn broadcast<M, H, S>(
+ pub async fn broadcast<M, N, H, S>(
&self,
endpoint: &Endpoint<M, H>,
- msg: M,
+ msg: N,
strat: RequestStrategy,
- ) -> Vec<(Uuid, Result<S, Error>)>
+ ) -> Result<Vec<(Uuid, Result<S, Error>)>, Error>
where
M: Rpc<Response = Result<S, Error>>,
- H: EndpointHandler<M>,
+ N: IntoReq<M>,
+ H: StreamingEndpointHandler<M>,
{
let to = self
.0
@@ -223,16 +214,17 @@ impl RpcHelper {
/// Make a RPC call to multiple servers, returning either a Vec of responses,
/// or an error if quorum could not be reached due to too many errors
- pub async fn try_call_many<M, H, S>(
+ pub async fn try_call_many<M, N, H, S>(
&self,
endpoint: &Arc<Endpoint<M, H>>,
to: &[Uuid],
- msg: M,
+ msg: N,
strategy: RequestStrategy,
) -> Result<Vec<S>, Error>
where
M: Rpc<Response = Result<S, Error>> + 'static,
- H: EndpointHandler<M> + 'static,
+ N: IntoReq<M>,
+ H: StreamingEndpointHandler<M> + 'static,
S: Send + 'static,
{
let quorum = strategy.rs_quorum.unwrap_or(to.len());
@@ -262,20 +254,21 @@ impl RpcHelper {
.await
}
- async fn try_call_many_internal<M, H, S>(
+ async fn try_call_many_internal<M, N, H, S>(
&self,
endpoint: &Arc<Endpoint<M, H>>,
to: &[Uuid],
- msg: M,
+ msg: N,
strategy: RequestStrategy,
quorum: usize,
) -> Result<Vec<S>, Error>
where
M: Rpc<Response = Result<S, Error>> + 'static,
- H: EndpointHandler<M> + 'static,
+ N: IntoReq<M>,
+ H: StreamingEndpointHandler<M> + 'static,
S: Send + 'static,
{
- let msg = Arc::new(msg);
+ let msg = msg.into_req().map_err(netapp::error::Error::from)?;
// Build future for each request
// They are not started now: they are added below in a FuturesUnordered
@@ -285,7 +278,7 @@ impl RpcHelper {
let msg = msg.clone();
let endpoint2 = endpoint.clone();
(to, async move {
- self2.call_arc(&endpoint2, to, msg, strategy).await
+ self2.call(&endpoint2, to, msg, strategy).await
})
});
@@ -299,47 +292,19 @@ impl RpcHelper {
// to reach a quorum, priorizing nodes with the lowest latency.
// When there are errors, we start new requests to compensate.
- // Retrieve some status variables that we will use to sort requests
- let peer_list = self.0.fullmesh.get_peer_list();
- let ring: Arc<Ring> = self.0.ring.borrow().clone();
- let our_zone = match ring.layout.node_role(&self.0.our_node_id) {
- Some(pc) => &pc.zone,
- None => "",
- };
-
- // Augment requests with some information used to sort them.
- // The tuples are as follows:
- // (is another node?, is another zone?, latency, node ID, request future)
- // We store all of these tuples in a vec that we can sort.
- // By sorting this vec, we priorize ourself, then nodes in the same zone,
- // and within a same zone we priorize nodes with the lowest latency.
- let mut requests = requests
- .map(|(to, fut)| {
- let peer_zone = match ring.layout.node_role(&to) {
- Some(pc) => &pc.zone,
- None => "",
- };
- let peer_avg_ping = peer_list
- .iter()
- .find(|x| x.id.as_ref() == to.as_slice())
- .and_then(|pi| pi.avg_ping)
- .unwrap_or_else(|| Duration::from_secs(1));
- (
- to != self.0.our_node_id,
- peer_zone != our_zone,
- peer_avg_ping,
- to,
- fut,
- )
- })
+ // Reorder requests to priorize closeness / low latency
+ let request_order = self.request_order(to);
+ let mut ord_requests = vec![(); request_order.len()]
+ .into_iter()
+ .map(|_| None)
.collect::<Vec<_>>();
-
- // Sort requests by (priorize ourself, priorize same zone, priorize low latency)
- requests
- .sort_by_key(|(diffnode, diffzone, ping, _to, _fut)| (*diffnode, *diffzone, *ping));
+ for (to, fut) in requests {
+ let i = request_order.iter().position(|x| *x == to).unwrap();
+ ord_requests[i] = Some((to, fut));
+ }
// Make an iterator to take requests in their sorted order
- let mut requests = requests.into_iter();
+ let mut requests = ord_requests.into_iter().map(Option::unwrap);
// resp_stream will contain all of the requests that are currently in flight.
// (for the moment none, they will be added in the loop below)
@@ -350,7 +315,7 @@ impl RpcHelper {
// If the current set of requests that are running is not enough to possibly
// reach quorum, start some new requests.
while successes.len() + resp_stream.len() < quorum {
- if let Some((_, _, _, req_to, fut)) = requests.next() {
+ if let Some((req_to, fut)) = requests.next() {
let tracer = opentelemetry::global::tracer("garage");
let span = tracer.start(format!("RPC to {:?}", req_to));
resp_stream.push(tokio::spawn(
@@ -420,4 +385,49 @@ impl RpcHelper {
Err(Error::Quorum(quorum, successes.len(), to.len(), errors))
}
}
+
+ pub fn request_order(&self, nodes: &[Uuid]) -> Vec<Uuid> {
+ // Retrieve some status variables that we will use to sort requests
+ let peer_list = self.0.fullmesh.get_peer_list();
+ let ring: Arc<Ring> = self.0.ring.borrow().clone();
+ let our_zone = match ring.layout.node_role(&self.0.our_node_id) {
+ Some(pc) => &pc.zone,
+ None => "",
+ };
+
+ // Augment requests with some information used to sort them.
+ // The tuples are as follows:
+ // (is another node?, is another zone?, latency, node ID, request future)
+ // We store all of these tuples in a vec that we can sort.
+ // By sorting this vec, we priorize ourself, then nodes in the same zone,
+ // and within a same zone we priorize nodes with the lowest latency.
+ let mut nodes = nodes
+ .iter()
+ .map(|to| {
+ let peer_zone = match ring.layout.node_role(&to) {
+ Some(pc) => &pc.zone,
+ None => "",
+ };
+ let peer_avg_ping = peer_list
+ .iter()
+ .find(|x| x.id.as_ref() == to.as_slice())
+ .and_then(|pi| pi.avg_ping)
+ .unwrap_or_else(|| Duration::from_secs(1));
+ (
+ *to != self.0.our_node_id,
+ peer_zone != our_zone,
+ peer_avg_ping,
+ *to,
+ )
+ })
+ .collect::<Vec<_>>();
+
+ // Sort requests by (priorize ourself, priorize same zone, priorize low latency)
+ nodes.sort_by_key(|(diffnode, diffzone, ping, _to)| (*diffnode, *diffzone, *ping));
+
+ nodes
+ .into_iter()
+ .map(|(_, _, _, to)| to)
+ .collect::<Vec<_>>()
+ }
}
diff --git a/src/rpc/system.rs b/src/rpc/system.rs
index fbfbbf56..5858660e 100644
--- a/src/rpc/system.rs
+++ b/src/rpc/system.rs
@@ -16,8 +16,8 @@ use tokio::sync::watch;
use tokio::sync::Mutex;
use netapp::endpoint::{Endpoint, EndpointHandler};
+use netapp::message::*;
use netapp::peering::fullmesh::FullMeshPeeringStrategy;
-use netapp::proto::*;
use netapp::util::parse_and_resolve_peer_addr;
use netapp::{NetApp, NetworkKey, NodeID, NodeKey};
@@ -541,7 +541,7 @@ impl System {
SystemRpc::AdvertiseClusterLayout(layout),
RequestStrategy::with_priority(PRIO_HIGH),
)
- .await;
+ .await?;
Ok(())
});
self.background.spawn(self.clone().save_cluster_layout());
@@ -556,7 +556,8 @@ impl System {
self.update_local_status();
let local_status: NodeStatus = self.local_status.load().as_ref().clone();
- self.rpc
+ let _ = self
+ .rpc
.broadcast(
&self.system_endpoint,
SystemRpc::AdvertiseStatus(local_status),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 10:39:54 +0000