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query_user_stats caching

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This commit is contained in:
Bryan Stitt 2022-12-15 22:32:58 -08:00
parent 9e32b02ada
commit 0a60ccd95e
4 changed files with 136 additions and 41 deletions
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3
TODO.md
View File

@ -261,6 +261,9 @@ These are roughly in order of completition
These are not yet ordered. There might be duplicates. We might not actually need all of these.
- [ ] rate limiting/throttling on query_user_stats
- [ ] minimum allowed query_start on query_user_stats
- [ ] query_user_stats cache hit rate
- [ ] having the whole block in status is very verbose. trim it down
- [ ] `cost estimate` script
- sum bytes and number of requests. prompt hosting costs. divide

1
redis-rate-limiter/src/lib.rs
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@ -48,7 +48,6 @@ impl RedisRateLimiter {
pub fn now_as_secs(&self) -> f32 {
// TODO: if system time doesn't match redis, this won't work great
// TODO: now that we fixed
SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("cannot tell the time")

28
web3_proxy/src/frontend/users.rs
View File

@ -736,7 +736,7 @@ pub async fn user_revert_logs_get(
let page = get_page_from_params(&params)?;
// TODO: page size from config
let page_size = 200;
let page_size = 1_000;
let mut response = HashMap::new();
@ -756,20 +756,30 @@ pub async fn user_revert_logs_get(
// TODO: only select the ids
let uks: Vec<_> = uks.into_iter().map(|x| x.id).collect();
// get paginated logs
let q = revert_log::Entity::find()
// get revert logs
let mut q = revert_log::Entity::find()
.filter(revert_log::Column::Timestamp.gte(query_start))
.filter(revert_log::Column::RpcKeyId.is_in(uks))
.order_by_asc(revert_log::Column::Timestamp);
let q = if chain_id == 0 {
if chain_id == 0 {
// don't do anything
q
} else {
// filter on chain id
q.filter(revert_log::Column::ChainId.eq(chain_id))
};
q = q.filter(revert_log::Column::ChainId.eq(chain_id))
}
// query the database for number of items and pages
let pages_result = q
.clone()
.paginate(&db_conn, page_size)
.num_items_and_pages()
.await?;
response.insert("num_items", pages_result.number_of_items.into());
response.insert("num_pages", pages_result.number_of_pages.into());
// query the database for the revert logs
let revert_logs = q.paginate(&db_conn, page_size).fetch_page(page).await?;
response.insert("revert_logs", json!(revert_logs));
@ -786,7 +796,7 @@ pub async fn user_stats_aggregated_get(
) -> FrontendResult {
let response = query_user_stats(&app, bearer, &params, StatResponse::Aggregated).await?;
Ok(Json(response).into_response())
Ok(response)
}
/// `GET /user/stats/detailed` -- Use a bearer token to get the user's key stats such as bandwidth used and methods requested.
@ -806,5 +816,5 @@ pub async fn user_stats_detailed_get(
) -> FrontendResult {
let response = query_user_stats(&app, bearer, &params, StatResponse::Detailed).await?;
Ok(Json(response).into_response())
Ok(response)
}

145
web3_proxy/src/user_queries.rs
View File

@ -1,6 +1,8 @@
use crate::frontend::errors::FrontendErrorResponse;
use crate::{app::Web3ProxyApp, user_token::UserBearerToken};
use anyhow::Context;
use axum::response::{IntoResponse, Response};
use axum::Json;
use axum::{
headers::{authorization::Bearer, Authorization},
TypedHeader,
@ -15,13 +17,16 @@ use migration::sea_orm::{
QuerySelect, Select,
};
use migration::{Condition, Expr, SimpleExpr};
use redis_rate_limiter::redis;
use redis_rate_limiter::{redis::AsyncCommands, RedisConnection};
use serde_json::json;
/// get the attached address for the given bearer token.
/// First checks redis. Then checks the database.
/// 0 means all users
/// 0 means all users.
/// This authenticates that the bearer is allowed to view this user_id's stats
pub async fn get_user_id_from_params(
mut redis_conn: RedisConnection,
redis_conn: &mut RedisConnection,
db_conn: DatabaseConnection,
// this is a long type. should we strip it down?
bearer: Option<TypedHeader<Authorization<Bearer>>>,
@ -212,12 +217,10 @@ pub fn get_query_window_seconds_from_params(
}
pub fn filter_query_window_seconds(
params: &HashMap<String, String>,
query_window_seconds: u64,
response: &mut HashMap<&str, serde_json::Value>,
q: Select<rpc_accounting::Entity>,
) -> Result<Select<rpc_accounting::Entity>, FrontendErrorResponse> {
let query_window_seconds = get_query_window_seconds_from_params(params)?;
if query_window_seconds == 0 {
// TODO: order by more than this?
// query_window_seconds is not set so we aggregate all records
@ -256,11 +259,66 @@ pub async fn query_user_stats<'a>(
bearer: Option<TypedHeader<Authorization<Bearer>>>,
params: &'a HashMap<String, String>,
stat_response_type: StatResponse,
) -> Result<HashMap<&'a str, serde_json::Value>, FrontendErrorResponse> {
) -> Result<Response, FrontendErrorResponse> {
let db_conn = app.db_conn().context("connecting to db")?;
let redis_conn = app.redis_conn().await.context("connecting to redis")?;
let mut redis_conn = app.redis_conn().await.context("connecting to redis")?;
let mut response = HashMap::new();
// get the user id first. if it is 0, we should use a cache on the app
let user_id = get_user_id_from_params(&mut redis_conn, db_conn.clone(), bearer, params).await?;
// get the query window seconds now so that we can pick a cache with a good TTL
// TODO: for now though, just do one cache. its easier
let query_window_seconds = get_query_window_seconds_from_params(params)?;
let query_start = get_query_start_from_params(params)?;
let chain_id = get_chain_id_from_params(app, params)?;
let page = get_page_from_params(params)?;
let cache_key = if user_id == 0 {
// TODO: cacheable query_window_seconds from config
if [60, 600, 3600, 86400, 86400 * 7, 86400 * 30].contains(&query_window_seconds)
&& query_start.timestamp() % (query_window_seconds as i64) == 0
{
None
} else {
// TODO: is this a good key?
let redis_cache_key = format!(
"query_user_stats:{}:{}:{}:{}:{}",
chain_id, user_id, query_start, query_window_seconds, page,
);
let cached_result: Result<(String, u64), _> = redis::pipe()
.atomic()
// get the key and its ttl
.get(&redis_cache_key)
.ttl(&redis_cache_key)
// do the query
.query_async(&mut redis_conn)
.await;
// redis being down should not break the stats page!
if let Ok((body, ttl)) = cached_result {
let mut response = body.into_response();
let headers = response.headers_mut();
headers.insert(
"Cache-Control",
format!("max-age={}", ttl)
.parse()
.expect("max-age should always parse"),
);
info!("served resposne from cache");
return Ok(response);
}
Some(redis_cache_key)
}
} else {
None
};
let mut response_body = HashMap::new();
let mut q = rpc_accounting::Entity::find()
.select_only()
@ -304,31 +362,27 @@ pub async fn query_user_stats<'a>(
.group_by(rpc_accounting::Column::ArchiveRequest);
}
q = filter_query_window_seconds(params, &mut response, q)?;
// TODO: have q be &mut?
q = filter_query_window_seconds(query_window_seconds, &mut response_body, q)?;
// aggregate stats after query_start
// TODO: minimum query_start of 90 days?
let query_start = get_query_start_from_params(params)?;
// TODO: maximum query_start of 90 days ago?
// TODO: if no query_start, don't add to response or condition
response.insert(
response_body.insert(
"query_start",
serde_json::Value::Number(query_start.timestamp().into()),
);
condition = condition.add(rpc_accounting::Column::PeriodDatetime.gte(query_start));
// filter on chain_id
let chain_id = get_chain_id_from_params(app, params)?;
if chain_id == 0 {
// fetch all the chains
} else {
// filter on chain_id
condition = condition.add(rpc_accounting::Column::ChainId.eq(chain_id));
response.insert("chain_id", serde_json::Value::Number(chain_id.into()));
response_body.insert("chain_id", serde_json::Value::Number(chain_id.into()));
}
// get_user_id_from_params checks that the bearer is connected to this user_id
// TODO: match on user_id and rpc_key_id?
let user_id = get_user_id_from_params(redis_conn, db_conn.clone(), bearer, params).await?;
if user_id == 0 {
// 0 means everyone. don't filter on user
} else {
@ -336,7 +390,7 @@ pub async fn query_user_stats<'a>(
condition = condition.add(rpc_key::Column::UserId.eq(user_id));
response.insert("user_id", serde_json::Value::Number(user_id.into()));
response_body.insert("user_id", serde_json::Value::Number(user_id.into()));
}
// filter on rpc_key_id
@ -351,7 +405,7 @@ pub async fn query_user_stats<'a>(
)
})?;
response.insert("rpc_key_id", serde_json::Value::Number(rpc_key_id.into()));
response_body.insert("rpc_key_id", serde_json::Value::Number(rpc_key_id.into()));
condition = condition.add(rpc_accounting::Column::RpcKeyId.eq(rpc_key_id));
@ -372,15 +426,11 @@ pub async fn query_user_stats<'a>(
// TODO: trace log query here? i think sea orm has a useful log level for this
// set up pagination
let page = get_page_from_params(params)?;
response.insert("page", serde_json::to_value(page).expect("can't fail"));
response_body.insert("page", serde_json::Value::Number(page.into()));
// TODO: page size from param with a max from the config
let page_size = 200;
response.insert(
"page_size",
serde_json::to_value(page_size).expect("can't fail"),
);
let page_size = 1_000;
response_body.insert("page_size", serde_json::Value::Number(page_size.into()));
// query the database for number of items and pages
let pages_result = q
@ -389,19 +439,52 @@ pub async fn query_user_stats<'a>(
.num_items_and_pages()
.await?;
response.insert("num_items", pages_result.number_of_items.into());
response.insert("num_pages", pages_result.number_of_pages.into());
response_body.insert("num_items", pages_result.number_of_items.into());
response_body.insert("num_pages", pages_result.number_of_pages.into());
// query the database (todo: combine with the pages_result query?)
let query_response = q
.into_json()
.paginate(&db_conn, page_size)
.fetch_page(page)
// TODO: timeouts here? or are they already set up on the connection
.await?;
// TODO: be a lot smart about caching
let ttl = 60;
// add the query_response to the json response
response.insert("result", serde_json::Value::Array(query_response));
response_body.insert("result", serde_json::Value::Array(query_response));
let mut response = Json(&response_body).into_response();
let headers = response.headers_mut();
if let Some(cache_key) = cache_key {
headers.insert(
"Cache-Control",
format!("public, max-age={}", ttl)
.parse()
.expect("max-age should always parse"),
);
let cache_body = json!(response_body).to_string();
if let Err(err) = redis_conn
.set_ex::<_, _, ()>(cache_key, cache_body, ttl)
.await
{
warn!("Redis error while caching query_user_stats: {:?}", err);
}
} else {
headers.insert(
"Cache-Control",
format!("private, max-age={}", ttl)
.parse()
.expect("max-age should always parse"),
);
}
// TODO: Last-Modified header?
Ok(response)
}