2018-11-15 13:23:26 -08:00
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//! Crds Gossip
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//! This module ties together Crds and the push and pull gossip overlays. The interface is
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//! designed to run with a simulator or over a UDP network connection with messages up to a
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//! packet::BLOB_DATA_SIZE size.
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2018-12-07 19:16:27 -08:00
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use crate::bloom::Bloom;
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use crate::crds::Crds;
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use crate::crds_gossip_error::CrdsGossipError;
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use crate::crds_gossip_pull::CrdsGossipPull;
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use crate::crds_gossip_push::{CrdsGossipPush, CRDS_GOSSIP_NUM_ACTIVE};
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use crate::crds_value::CrdsValue;
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2018-11-16 08:04:46 -08:00
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use solana_sdk::hash::Hash;
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2018-11-15 13:23:26 -08:00
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use solana_sdk::pubkey::Pubkey;
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2018-12-01 12:00:30 -08:00
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///The min size for bloom filters
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pub const CRDS_GOSSIP_BLOOM_SIZE: usize = 1000;
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2018-11-15 13:23:26 -08:00
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pub struct CrdsGossip {
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pub crds: Crds,
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pub id: Pubkey,
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push: CrdsGossipPush,
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pull: CrdsGossipPull,
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}
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impl Default for CrdsGossip {
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fn default() -> Self {
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CrdsGossip {
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crds: Crds::default(),
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id: Pubkey::default(),
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push: CrdsGossipPush::default(),
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pull: CrdsGossipPull::default(),
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}
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}
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}
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impl CrdsGossip {
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pub fn set_self(&mut self, id: Pubkey) {
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self.id = id;
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}
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/// process a push message to the network
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pub fn process_push_message(&mut self, values: &[CrdsValue], now: u64) -> Vec<Pubkey> {
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let results: Vec<_> = values
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.iter()
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.map(|val| {
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self.push
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.process_push_message(&mut self.crds, val.clone(), now)
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2018-12-07 19:01:28 -08:00
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})
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.collect();
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2018-11-15 13:23:26 -08:00
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results
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.into_iter()
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.zip(values)
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.filter_map(|(r, d)| {
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if r == Err(CrdsGossipError::PushMessagePrune) {
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Some(d.label().pubkey())
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} else if let Ok(Some(val)) = r {
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self.pull
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.record_old_hash(val.value_hash, val.local_timestamp);
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None
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} else {
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None
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}
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2018-12-07 19:01:28 -08:00
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})
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.collect()
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2018-11-15 13:23:26 -08:00
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}
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pub fn new_push_messages(&mut self, now: u64) -> (Pubkey, Vec<Pubkey>, Vec<CrdsValue>) {
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let (peers, values) = self.push.new_push_messages(&self.crds, now);
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(self.id, peers, values)
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}
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/// add the `from` to the peer's filter of nodes
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2018-12-01 12:00:30 -08:00
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pub fn process_prune_msg(
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&mut self,
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peer: Pubkey,
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destination: Pubkey,
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origin: &[Pubkey],
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wallclock: u64,
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now: u64,
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) -> Result<(), CrdsGossipError> {
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let expired = now > wallclock + self.push.prune_timeout;
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if expired {
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return Err(CrdsGossipError::PruneMessageTimeout);
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}
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if self.id == destination {
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self.push.process_prune_msg(peer, origin);
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Ok(())
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} else {
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Err(CrdsGossipError::BadPruneDestination)
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}
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2018-11-15 13:23:26 -08:00
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}
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/// refresh the push active set
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/// * ratio - number of actives to rotate
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pub fn refresh_push_active_set(&mut self) {
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self.push.refresh_push_active_set(
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&self.crds,
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self.id,
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self.pull.pull_request_time.len(),
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CRDS_GOSSIP_NUM_ACTIVE,
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)
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}
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/// generate a random request
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pub fn new_pull_request(
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&self,
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now: u64,
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) -> Result<(Pubkey, Bloom<Hash>, CrdsValue), CrdsGossipError> {
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self.pull.new_pull_request(&self.crds, self.id, now)
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}
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/// time when a request to `from` was initiated
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/// This is used for weighted random selection durring `new_pull_request`
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/// It's important to use the local nodes request creation time as the weight
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/// instaad of the response received time otherwise failed nodes will increase their weight.
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pub fn mark_pull_request_creation_time(&mut self, from: Pubkey, now: u64) {
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self.pull.mark_pull_request_creation_time(from, now)
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}
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/// process a pull request and create a response
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pub fn process_pull_request(
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&mut self,
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caller: CrdsValue,
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filter: Bloom<Hash>,
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now: u64,
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) -> Vec<CrdsValue> {
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self.pull
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.process_pull_request(&mut self.crds, caller, filter, now)
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}
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/// process a pull response
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pub fn process_pull_response(
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&mut self,
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from: Pubkey,
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response: Vec<CrdsValue>,
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now: u64,
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) -> usize {
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self.pull
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.process_pull_response(&mut self.crds, from, response, now)
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}
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pub fn purge(&mut self, now: u64) {
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if now > self.push.msg_timeout {
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let min = now - self.push.msg_timeout;
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self.push.purge_old_pending_push_messages(&self.crds, min);
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}
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if now > 5 * self.push.msg_timeout {
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let min = now - 5 * self.push.msg_timeout;
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self.push.purge_old_pushed_once_messages(min);
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}
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if now > self.pull.crds_timeout {
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let min = now - self.pull.crds_timeout;
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self.pull.purge_active(&mut self.crds, self.id, min);
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}
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if now > 5 * self.pull.crds_timeout {
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let min = now - 5 * self.pull.crds_timeout;
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self.pull.purge_purged(min);
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}
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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2018-12-07 19:16:27 -08:00
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use crate::cluster_info::NodeInfo;
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use crate::contact_info::ContactInfo;
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use crate::crds_gossip_push::CRDS_GOSSIP_PUSH_MSG_TIMEOUT_MS;
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use crate::crds_value::CrdsValueLabel;
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2018-11-15 13:23:26 -08:00
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use bincode::serialized_size;
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use rayon::prelude::*;
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2018-12-01 12:00:30 -08:00
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use solana_sdk::hash::hash;
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2018-12-03 10:26:28 -08:00
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use solana_sdk::signature::{Keypair, KeypairUtil};
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2018-12-01 12:00:30 -08:00
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use solana_sdk::timing::timestamp;
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2018-11-15 13:23:26 -08:00
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use std::collections::HashMap;
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use std::sync::{Arc, Mutex};
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type Node = Arc<Mutex<CrdsGossip>>;
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type Network = HashMap<Pubkey, Node>;
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fn star_network_create(num: usize) -> Network {
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let entry = CrdsValue::ContactInfo(ContactInfo::new_localhost(Keypair::new().pubkey(), 0));
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let mut network: HashMap<_, _> = (1..num)
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.map(|_| {
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let new =
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CrdsValue::ContactInfo(ContactInfo::new_localhost(Keypair::new().pubkey(), 0));
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let id = new.label().pubkey();
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let mut node = CrdsGossip::default();
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node.crds.insert(new.clone(), 0).unwrap();
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node.crds.insert(entry.clone(), 0).unwrap();
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node.set_self(id);
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(new.label().pubkey(), Arc::new(Mutex::new(node)))
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2018-12-07 19:01:28 -08:00
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})
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.collect();
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2018-11-15 13:23:26 -08:00
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let mut node = CrdsGossip::default();
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let id = entry.label().pubkey();
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node.crds.insert(entry.clone(), 0).unwrap();
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node.set_self(id);
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network.insert(id, Arc::new(Mutex::new(node)));
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network
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}
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fn rstar_network_create(num: usize) -> Network {
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let entry = CrdsValue::ContactInfo(ContactInfo::new_localhost(Keypair::new().pubkey(), 0));
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let mut origin = CrdsGossip::default();
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let id = entry.label().pubkey();
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origin.crds.insert(entry.clone(), 0).unwrap();
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origin.set_self(id);
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let mut network: HashMap<_, _> = (1..num)
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.map(|_| {
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let new =
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CrdsValue::ContactInfo(ContactInfo::new_localhost(Keypair::new().pubkey(), 0));
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let id = new.label().pubkey();
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let mut node = CrdsGossip::default();
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node.crds.insert(new.clone(), 0).unwrap();
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origin.crds.insert(new.clone(), 0).unwrap();
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node.set_self(id);
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(new.label().pubkey(), Arc::new(Mutex::new(node)))
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2018-12-07 19:01:28 -08:00
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})
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.collect();
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2018-11-15 13:23:26 -08:00
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network.insert(id, Arc::new(Mutex::new(origin)));
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network
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}
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fn ring_network_create(num: usize) -> Network {
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let mut network: HashMap<_, _> = (0..num)
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.map(|_| {
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let new =
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CrdsValue::ContactInfo(ContactInfo::new_localhost(Keypair::new().pubkey(), 0));
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let id = new.label().pubkey();
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let mut node = CrdsGossip::default();
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node.crds.insert(new.clone(), 0).unwrap();
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node.set_self(id);
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(new.label().pubkey(), Arc::new(Mutex::new(node)))
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2018-12-07 19:01:28 -08:00
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})
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.collect();
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2018-11-15 13:23:26 -08:00
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let keys: Vec<Pubkey> = network.keys().cloned().collect();
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for k in 0..keys.len() {
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let start_info = {
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let start = &network[&keys[k]];
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let start_id = start.lock().unwrap().id.clone();
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start
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.lock()
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.unwrap()
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.crds
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.lookup(&CrdsValueLabel::ContactInfo(start_id))
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.unwrap()
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.clone()
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};
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let end = network.get_mut(&keys[(k + 1) % keys.len()]).unwrap();
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end.lock().unwrap().crds.insert(start_info, 0).unwrap();
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}
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network
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}
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fn network_simulator_pull_only(network: &mut Network) {
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let num = network.len();
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let (converged, bytes_tx) = network_run_pull(network, 0, num * 2, 0.9);
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trace!(
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"network_simulator_pull_{}: converged: {} total_bytes: {}",
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num,
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converged,
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bytes_tx
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);
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assert!(converged >= 0.9);
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}
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fn network_simulator(network: &mut Network) {
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let num = network.len();
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// run for a small amount of time
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let (converged, bytes_tx) = network_run_pull(network, 0, 10, 1.0);
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trace!("network_simulator_push_{}: converged: {}", num, converged);
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// make sure there is someone in the active set
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let network_values: Vec<Node> = network.values().cloned().collect();
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network_values.par_iter().for_each(|node| {
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node.lock().unwrap().refresh_push_active_set();
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});
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let mut total_bytes = bytes_tx;
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for second in 1..num {
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let start = second * 10;
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let end = (second + 1) * 10;
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let now = (start * 100) as u64;
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// push a message to the network
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network_values.par_iter().for_each(|locked_node| {
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let node = &mut locked_node.lock().unwrap();
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let mut m = node
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.crds
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.lookup(&CrdsValueLabel::ContactInfo(node.id))
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.and_then(|v| v.contact_info().cloned())
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.unwrap();
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m.wallclock = now;
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node.process_push_message(&[CrdsValue::ContactInfo(m.clone())], now);
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});
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// push for a bit
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let (queue_size, bytes_tx) = network_run_push(network, start, end);
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total_bytes += bytes_tx;
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trace!(
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"network_simulator_push_{}: queue_size: {} bytes: {}",
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num,
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queue_size,
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bytes_tx
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);
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// pull for a bit
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let (converged, bytes_tx) = network_run_pull(network, start, end, 1.0);
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total_bytes += bytes_tx;
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trace!(
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"network_simulator_push_{}: converged: {} bytes: {} total_bytes: {}",
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num,
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converged,
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bytes_tx,
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total_bytes
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);
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if converged > 0.9 {
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break;
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}
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}
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}
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fn network_run_push(network: &mut Network, start: usize, end: usize) -> (usize, usize) {
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let mut bytes: usize = 0;
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let mut num_msgs: usize = 0;
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let mut total: usize = 0;
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let num = network.len();
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let mut prunes: usize = 0;
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let mut delivered: usize = 0;
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let network_values: Vec<Node> = network.values().cloned().collect();
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for t in start..end {
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let now = t as u64 * 100;
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let requests: Vec<_> = network_values
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.par_iter()
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.map(|node| {
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node.lock().unwrap().purge(now);
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node.lock().unwrap().new_push_messages(now)
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2018-12-07 19:01:28 -08:00
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})
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.collect();
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2018-11-15 13:23:26 -08:00
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let transfered: Vec<_> = requests
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.par_iter()
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.map(|(from, peers, msgs)| {
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let mut bytes: usize = 0;
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let mut delivered: usize = 0;
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let mut num_msgs: usize = 0;
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let mut prunes: usize = 0;
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for to in peers {
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bytes += serialized_size(msgs).unwrap() as usize;
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num_msgs += 1;
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let rsps = network
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|
|
.get(&to)
|
|
|
|
.map(|node| node.lock().unwrap().process_push_message(&msgs, now))
|
|
|
|
.unwrap();
|
|
|
|
bytes += serialized_size(&rsps).unwrap() as usize;
|
|
|
|
prunes += rsps.len();
|
|
|
|
network
|
|
|
|
.get(&from)
|
2018-12-01 12:00:30 -08:00
|
|
|
.map(|node| {
|
|
|
|
let mut node = node.lock().unwrap();
|
|
|
|
let destination = node.id;
|
|
|
|
let now = timestamp();
|
|
|
|
node.process_prune_msg(*to, destination, &rsps, now, now)
|
|
|
|
.unwrap()
|
2018-12-07 19:01:28 -08:00
|
|
|
})
|
|
|
|
.unwrap();
|
2018-11-15 13:23:26 -08:00
|
|
|
delivered += rsps.is_empty() as usize;
|
|
|
|
}
|
|
|
|
(bytes, delivered, num_msgs, prunes)
|
2018-12-07 19:01:28 -08:00
|
|
|
})
|
|
|
|
.collect();
|
2018-11-15 13:23:26 -08:00
|
|
|
for (b, d, m, p) in transfered {
|
|
|
|
bytes += b;
|
|
|
|
delivered += d;
|
|
|
|
num_msgs += m;
|
|
|
|
prunes += p;
|
|
|
|
}
|
|
|
|
if now % CRDS_GOSSIP_PUSH_MSG_TIMEOUT_MS == 0 && now > 0 {
|
|
|
|
network_values.par_iter().for_each(|node| {
|
|
|
|
node.lock().unwrap().refresh_push_active_set();
|
|
|
|
});
|
|
|
|
}
|
|
|
|
total = network_values
|
|
|
|
.par_iter()
|
|
|
|
.map(|v| v.lock().unwrap().push.num_pending())
|
|
|
|
.sum();
|
|
|
|
trace!(
|
|
|
|
"network_run_push_{}: now: {} queue: {} bytes: {} num_msgs: {} prunes: {} delivered: {}",
|
|
|
|
num,
|
|
|
|
now,
|
|
|
|
total,
|
|
|
|
bytes,
|
|
|
|
num_msgs,
|
|
|
|
prunes,
|
|
|
|
delivered,
|
|
|
|
);
|
|
|
|
}
|
|
|
|
(total, bytes)
|
|
|
|
}
|
|
|
|
|
|
|
|
fn network_run_pull(
|
|
|
|
network: &mut Network,
|
|
|
|
start: usize,
|
|
|
|
end: usize,
|
|
|
|
max_convergance: f64,
|
|
|
|
) -> (f64, usize) {
|
|
|
|
let mut bytes: usize = 0;
|
|
|
|
let mut msgs: usize = 0;
|
|
|
|
let mut overhead: usize = 0;
|
|
|
|
let mut convergance = 0f64;
|
|
|
|
let num = network.len();
|
|
|
|
let network_values: Vec<Node> = network.values().cloned().collect();
|
|
|
|
for t in start..end {
|
|
|
|
let now = t as u64 * 100;
|
2018-12-08 21:44:20 -08:00
|
|
|
let requests: Vec<_> = {
|
2018-11-15 13:23:26 -08:00
|
|
|
network_values
|
|
|
|
.par_iter()
|
|
|
|
.filter_map(|from| from.lock().unwrap().new_pull_request(now).ok())
|
|
|
|
.collect()
|
|
|
|
};
|
|
|
|
let transfered: Vec<_> = requests
|
|
|
|
.into_par_iter()
|
|
|
|
.map(|(to, request, caller_info)| {
|
|
|
|
let mut bytes: usize = 0;
|
|
|
|
let mut msgs: usize = 0;
|
|
|
|
let mut overhead: usize = 0;
|
|
|
|
let from = caller_info.label().pubkey();
|
|
|
|
bytes += request.keys.len();
|
|
|
|
bytes += (request.bits.len() / 8) as usize;
|
|
|
|
bytes += serialized_size(&caller_info).unwrap() as usize;
|
|
|
|
let rsp = network
|
|
|
|
.get(&to)
|
|
|
|
.map(|node| {
|
|
|
|
node.lock()
|
|
|
|
.unwrap()
|
|
|
|
.process_pull_request(caller_info, request, now)
|
2018-12-07 19:01:28 -08:00
|
|
|
})
|
|
|
|
.unwrap();
|
2018-11-15 13:23:26 -08:00
|
|
|
bytes += serialized_size(&rsp).unwrap() as usize;
|
|
|
|
msgs += rsp.len();
|
|
|
|
network.get(&from).map(|node| {
|
|
|
|
node.lock()
|
|
|
|
.unwrap()
|
|
|
|
.mark_pull_request_creation_time(from, now);
|
|
|
|
overhead += node.lock().unwrap().process_pull_response(from, rsp, now);
|
|
|
|
});
|
|
|
|
(bytes, msgs, overhead)
|
2018-12-07 19:01:28 -08:00
|
|
|
})
|
|
|
|
.collect();
|
2018-11-15 13:23:26 -08:00
|
|
|
for (b, m, o) in transfered {
|
|
|
|
bytes += b;
|
|
|
|
msgs += m;
|
|
|
|
overhead += o;
|
|
|
|
}
|
|
|
|
let total: usize = network_values
|
|
|
|
.par_iter()
|
|
|
|
.map(|v| v.lock().unwrap().crds.table.len())
|
|
|
|
.sum();
|
|
|
|
convergance = total as f64 / ((num * num) as f64);
|
|
|
|
if convergance > max_convergance {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
trace!(
|
|
|
|
"network_run_pull_{}: now: {} connections: {} convergance: {} bytes: {} msgs: {} overhead: {}",
|
|
|
|
num,
|
|
|
|
now,
|
|
|
|
total,
|
|
|
|
convergance,
|
|
|
|
bytes,
|
|
|
|
msgs,
|
|
|
|
overhead
|
|
|
|
);
|
|
|
|
}
|
|
|
|
(convergance, bytes)
|
|
|
|
}
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_star_network_pull_50() {
|
|
|
|
let mut network = star_network_create(50);
|
|
|
|
network_simulator_pull_only(&mut network);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
fn test_star_network_pull_100() {
|
|
|
|
let mut network = star_network_create(100);
|
|
|
|
network_simulator_pull_only(&mut network);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
fn test_star_network_push_star_200() {
|
|
|
|
let mut network = star_network_create(200);
|
|
|
|
network_simulator(&mut network);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
fn test_star_network_push_rstar_200() {
|
|
|
|
let mut network = rstar_network_create(200);
|
|
|
|
network_simulator(&mut network);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
fn test_star_network_push_ring_200() {
|
|
|
|
let mut network = ring_network_create(200);
|
|
|
|
network_simulator(&mut network);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
#[ignore]
|
|
|
|
fn test_star_network_large_pull() {
|
2018-12-14 12:36:50 -08:00
|
|
|
solana_logger::setup();
|
2018-11-15 13:23:26 -08:00
|
|
|
let mut network = star_network_create(2000);
|
|
|
|
network_simulator_pull_only(&mut network);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
#[ignore]
|
|
|
|
fn test_rstar_network_large_push() {
|
2018-12-14 12:36:50 -08:00
|
|
|
solana_logger::setup();
|
2018-11-15 13:23:26 -08:00
|
|
|
let mut network = rstar_network_create(4000);
|
|
|
|
network_simulator(&mut network);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
#[ignore]
|
|
|
|
fn test_ring_network_large_push() {
|
2018-12-14 12:36:50 -08:00
|
|
|
solana_logger::setup();
|
2018-11-15 13:23:26 -08:00
|
|
|
let mut network = ring_network_create(4001);
|
|
|
|
network_simulator(&mut network);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
#[ignore]
|
|
|
|
fn test_star_network_large_push() {
|
2018-12-14 12:36:50 -08:00
|
|
|
solana_logger::setup();
|
2018-11-15 13:23:26 -08:00
|
|
|
let mut network = star_network_create(4002);
|
|
|
|
network_simulator(&mut network);
|
|
|
|
}
|
2018-12-01 12:00:30 -08:00
|
|
|
#[test]
|
|
|
|
fn test_prune_errors() {
|
|
|
|
let mut crds_gossip = CrdsGossip::default();
|
|
|
|
crds_gossip.id = Pubkey::new(&[0; 32]);
|
|
|
|
let id = crds_gossip.id;
|
|
|
|
let ci = NodeInfo::new_localhost(Pubkey::new(&[1; 32]), 0);
|
|
|
|
let prune_pubkey = Pubkey::new(&[2; 32]);
|
|
|
|
crds_gossip
|
|
|
|
.crds
|
|
|
|
.insert(CrdsValue::ContactInfo(ci.clone()), 0)
|
|
|
|
.unwrap();
|
|
|
|
crds_gossip.refresh_push_active_set();
|
|
|
|
let now = timestamp();
|
|
|
|
//incorrect dest
|
|
|
|
let mut res = crds_gossip.process_prune_msg(
|
|
|
|
ci.id,
|
|
|
|
Pubkey::new(hash(&[1; 32]).as_ref()),
|
|
|
|
&[prune_pubkey],
|
|
|
|
now,
|
|
|
|
now,
|
|
|
|
);
|
|
|
|
assert_eq!(res.err(), Some(CrdsGossipError::BadPruneDestination));
|
|
|
|
//correct dest
|
|
|
|
res = crds_gossip.process_prune_msg(ci.id, id, &[prune_pubkey], now, now);
|
2019-01-28 14:52:35 -08:00
|
|
|
res.unwrap();
|
2018-12-01 12:00:30 -08:00
|
|
|
//test timeout
|
|
|
|
let timeout = now + crds_gossip.push.prune_timeout * 2;
|
|
|
|
res = crds_gossip.process_prune_msg(ci.id, id, &[prune_pubkey], now, timeout);
|
|
|
|
assert_eq!(res.err(), Some(CrdsGossipError::PruneMessageTimeout));
|
|
|
|
}
|
2018-11-15 13:23:26 -08:00
|
|
|
}
|