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Merge discovery loop with consul
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Alex 2021-04-05 23:04:08 +02:00
parent 7fd1f9a869
commit 7b85056942
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GPG key ID: EDABF9711E244EB1
1 changed files with 22 additions and 37 deletions
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53
src/rpc/membership.rs
View file

@ -328,7 +328,7 @@ impl System {
let self2 = self.clone();
self.background
.spawn_worker(format!("discovery loop"), |stop_signal| {
self2.discovery_loop(peers, stop_signal)
self2.discovery_loop(peers, consul_host, consul_service_name, stop_signal)
});
let self2 = self.clone();
@ -336,14 +336,6 @@ impl System {
.spawn_worker(format!("ping loop"), |stop_signal| {
self2.ping_loop(stop_signal)
});
if let (Some(consul_host), Some(consul_service_name)) = (consul_host, consul_service_name) {
let self2 = self.clone();
self.background
.spawn_worker(format!("Consul loop"), |stop_signal| {
self2.consul_loop(stop_signal, consul_host, consul_service_name)
});
}
}
async fn ping_nodes(self: Arc<Self>, peers: Vec<(SocketAddr, Option<UUID>)>) {
@ -561,8 +553,15 @@ impl System {
async fn discovery_loop(
self: Arc<Self>,
bootstrap_peers: Vec<SocketAddr>,
consul_host: Option<String>,
consul_service_name: Option<String>,
mut stop_signal: watch::Receiver<bool>,
) {
let consul_config = match (consul_host, consul_service_name) {
(Some(ch), Some(csn)) => Some((ch, csn)),
_ => None,
};
while !*stop_signal.borrow() {
let not_configured = self.ring.borrow().config.members.len() == 0;
let no_peers = self.status.borrow().nodes.len() < 3;
@ -571,51 +570,37 @@ impl System {
.borrow()
.nodes
.iter()
.filter(|(_, v)| !v.is_up())
.filter(|(_, v)| v.is_up())
.count() != self.ring.borrow().config.members.len();
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 mut bp2 = bootstrap_peers
let mut ping_list = bootstrap_peers
.iter()
.map(|ip| (*ip, None))
.collect::<Vec<_>>();
match self.persist_status.load_async().await {
Ok(peers) => {
bp2.extend(peers.iter().map(|x| (x.addr, Some(x.id))));
ping_list.extend(peers.iter().map(|x| (x.addr, Some(x.id))));
}
_ => (),
}
self.clone().ping_nodes(bp2).await;
}
let restart_at = tokio::time::sleep(DISCOVERY_INTERVAL);
select! {
_ = restart_at.fuse() => (),
_ = stop_signal.changed().fuse() => (),
}
}
}
async fn consul_loop(
self: Arc<Self>,
mut stop_signal: watch::Receiver<bool>,
consul_host: String,
consul_service_name: String,
) {
while !*stop_signal.borrow() {
match get_consul_nodes(&consul_host, &consul_service_name).await {
Ok(mut node_list) => {
let ping_addrs = node_list.drain(..).map(|a| (a, None)).collect::<Vec<_>>();
self.clone().ping_nodes(ping_addrs).await;
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)));
}
Err(e) => {
warn!("Could not retrieve node list from Consul: {}", e);
}
}
}
self.clone().ping_nodes(ping_list).await;
}
let restart_at = tokio::time::sleep(DISCOVERY_INTERVAL);
select! {