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fix: sending code got stuck sometimes

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This commit is contained in:
Timo Kösters 2021-02-26 13:24:07 +01:00
parent 566b8ebabb
commit f7713fdf2e
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GPG Key ID: 24DA7517711A2BA4
2 changed files with 59 additions and 23 deletions
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78
src/database/sending.rs
View File

@ -8,7 +8,7 @@ use std::{
use crate::{appservice_server, server_server, utils, Error, PduEvent, Result};
use federation::transactions::send_transaction_message;
use log::info;
use log::{info, warn};
use ring::digest;
use rocket::futures::stream::{FuturesUnordered, StreamExt};
use ruma::{
@ -36,6 +36,7 @@ impl Sending {
) {
let servernamepduids = self.servernamepduids.clone();
let servercurrentpdus = self.servercurrentpdus.clone();
let maximum_requests = self.maximum_requests.clone();
let rooms = rooms.clone();
let globals = globals.clone();
let appservice = appservice.clone();
@ -44,23 +45,43 @@ impl Sending {
let mut futures = FuturesUnordered::new();
// Retry requests we could not finish yet
let mut current_transactions = HashMap::new();
let mut current_transactions = HashMap::<(Box<ServerName>, bool), Vec<IVec>>::new();
for (server, pdu, is_appservice) in servercurrentpdus
for (key, server, pdu, is_appservice) in servercurrentpdus
.iter()
.filter_map(|r| r.ok())
.filter_map(|(key, _)| Self::parse_servercurrentpdus(key).ok())
.filter(|(_, pdu, _)| !pdu.is_empty()) // Skip reservation key
.take(50)
// This should not contain more than 50 anyway
{
current_transactions
if pdu.is_empty() {
// Remove old reservation key
servercurrentpdus.remove(key).unwrap();
continue;
}
let entry = current_transactions
.entry((server, is_appservice))
.or_insert_with(Vec::new)
.push(pdu);
.or_insert_with(Vec::new);
if entry.len() > 30 {
warn!("Dropping some current pdus because too many were queued. This should not happen.");
servercurrentpdus.remove(key).unwrap();
continue;
}
entry.push(pdu);
}
for ((server, is_appservice), pdus) in current_transactions {
// Create new reservation
let mut prefix = if is_appservice {
"+".as_bytes().to_vec()
} else {
Vec::new()
};
prefix.extend_from_slice(server.as_bytes());
prefix.push(0xff);
servercurrentpdus.insert(prefix, &[]).unwrap();
futures.push(Self::handle_event(
server,
is_appservice,
@ -68,6 +89,7 @@ impl Sending {
&globals,
&rooms,
&appservice,
&maximum_requests,
));
}
@ -106,7 +128,7 @@ impl Sending {
.map(|k| {
k.subslice(prefix.len(), k.len() - prefix.len())
})
.take(50)
.take(30)
.collect::<Vec<_>>();
if !new_pdus.is_empty() {
@ -117,7 +139,7 @@ impl Sending {
servernamepduids.remove(&current_key).unwrap();
}
futures.push(Self::handle_event(server, is_appservice, new_pdus, &globals, &rooms, &appservice));
futures.push(Self::handle_event(server, is_appservice, new_pdus, &globals, &rooms, &appservice, &maximum_requests));
} else {
servercurrentpdus.remove(&prefix).unwrap();
// servercurrentpdus with the prefix should be empty now
@ -194,15 +216,17 @@ impl Sending {
prefix.extend_from_slice(server.as_bytes());
prefix.push(0xff);
servercurrentpdus
if servercurrentpdus
.compare_and_swap(prefix, Option::<&[u8]>::None, Some(&[])) // Try to reserve
== Ok(Ok(()))
== Ok(Ok(())) { true } else {
false
}
})
{
servercurrentpdus.insert(&key, &[]).unwrap();
servernamepduids.remove(&key).unwrap();
futures.push(Self::handle_event(server, is_appservice, vec![pdu_id.into()], &globals, &rooms, &appservice));
futures.push(Self::handle_event(server, is_appservice, vec![pdu_id.into()], &globals, &rooms, &appservice, &maximum_requests));
}
}
}
@ -244,6 +268,7 @@ impl Sending {
globals: &super::globals::Globals,
rooms: &super::rooms::Rooms,
appservice: &super::appservice::Appservice,
maximum_requests: &Semaphore,
) -> std::result::Result<(Box<ServerName>, bool), (Box<ServerName>, bool, Error)> {
if is_appservice {
let pdu_jsons = pdu_ids
@ -266,7 +291,9 @@ impl Sending {
})
.filter_map(|r| r.ok())
.collect::<Vec<_>>();
appservice_server::send_request(
let permit = maximum_requests.acquire().await;
let response = appservice_server::send_request(
&globals,
appservice
.get_registration(server.as_str())
@ -282,7 +309,11 @@ impl Sending {
)
.await
.map(|_response| (server.clone(), is_appservice))
.map_err(|e| (server, is_appservice, e))
.map_err(|e| (server, is_appservice, e));
drop(permit);
response
} else {
let pdu_jsons = pdu_ids
.iter()
@ -312,7 +343,8 @@ impl Sending {
.filter_map(|r| r.ok())
.collect::<Vec<_>>();
server_server::send_request(
let permit = maximum_requests.acquire().await;
let response = server_server::send_request(
&globals,
server.clone(),
send_transaction_message::v1::Request {
@ -328,12 +360,17 @@ impl Sending {
)
.await
.map(|_response| (server.clone(), is_appservice))
.map_err(|e| (server, is_appservice, e))
.map_err(|e| (server, is_appservice, e));
drop(permit);
response
}
}
fn parse_servercurrentpdus(key: IVec) -> Result<(Box<ServerName>, IVec, bool)> {
let mut parts = key.splitn(2, |&b| b == 0xff);
fn parse_servercurrentpdus(key: IVec) -> Result<(IVec, Box<ServerName>, IVec, bool)> {
let key2 = key.clone();
let mut parts = key2.splitn(2, |&b| b == 0xff);
let server = parts.next().expect("splitn always returns one element");
let pdu = parts
.next()
@ -351,6 +388,7 @@ impl Sending {
};
Ok::<_, Error>((
key,
Box::<ServerName>::try_from(server).map_err(|_| {
Error::bad_database("Invalid server string in server_currenttransaction")
})?,

4
src/ruma_wrapper.rs
View File

@ -82,9 +82,7 @@ where
registration
.get("as_token")
.and_then(|as_token| as_token.as_str())
.map_or(false, |as_token| {
dbg!(token.as_deref()) == dbg!(Some(as_token))
})
.map_or(false, |as_token| token.as_deref() == Some(as_token))
}) {
match T::METADATA.authentication {
AuthScheme::AccessToken | AuthScheme::QueryOnlyAccessToken => {