From: Felix Ableitner Date: Mon, 16 Dec 2019 12:25:47 +0000 (+0100) Subject: Implement SQL connection pool X-Git-Url: http://these/git/readmes/%7B%60%24%7BarchiveTodayUrl%7D/static/%7BpictrsAvatarThumbnail%28user.avatar%29%7D?a=commitdiff_plain;h=8589b6c0bd84422adbd6287b6a3aa331d82ddefe;p=lemmy.git Implement SQL connection pool --- diff --git a/server/Cargo.lock b/server/Cargo.lock index 997fcce6..2bd51b8c 100644 --- a/server/Cargo.lock +++ b/server/Cargo.lock @@ -694,6 +694,7 @@ dependencies = [ "chrono 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)", "diesel_derives 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)", "pq-sys 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)", + "r2d2 0.8.7 (registry+https://github.com/rust-lang/crates.io-index)", ] [[package]] @@ -1514,6 +1515,15 @@ dependencies = [ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "parking_lot" +version = "0.10.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "lock_api 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)", + "parking_lot_core 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "parking_lot_core" version = "0.4.0" @@ -1555,6 +1565,19 @@ dependencies = [ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "parking_lot_core" +version = "0.7.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)", + "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)", + "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)", + "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)", + "smallvec 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)", + "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "percent-encoding" version = "1.0.1" @@ -1667,6 +1690,16 @@ dependencies = [ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "r2d2" +version = "0.8.7" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)", + "parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)", + "scheduled-thread-pool 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "rand" version = "0.3.23" @@ -1966,6 +1999,14 @@ dependencies = [ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "scheduled-thread-pool" +version = "0.2.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "scopeguard" version = "0.3.3" @@ -2122,6 +2163,11 @@ name = "smallvec" version = "0.6.10" source = "registry+https://github.com/rust-lang/crates.io-index" +[[package]] +name = "smallvec" +version = "1.0.0" +source = "registry+https://github.com/rust-lang/crates.io-index" + [[package]] name = "socket2" version = "0.3.9" @@ -2824,12 +2870,14 @@ dependencies = [ "checksum openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de" "checksum openssl-sys 0.9.52 (registry+https://github.com/rust-lang/crates.io-index)" = "c977d08e1312e2f7e4b86f9ebaa0ed3b19d1daff75fae88bbb88108afbd801fc" "checksum owning_ref 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "49a4b8ea2179e6a2e27411d3bca09ca6dd630821cf6894c6c7c8467a8ee7ef13" +"checksum parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "92e98c49ab0b7ce5b222f2cc9193fc4efe11c6d0bd4f648e374684a6857b1cfc" "checksum parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ab41b4aed082705d1056416ae4468b6ea99d52599ecf3169b00088d43113e337" "checksum parking_lot 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fa7767817701cce701d5585b9c4db3cdd02086398322c1d7e8bf5094a96a2ce7" "checksum parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252" "checksum parking_lot_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "94c8c7923936b28d546dfd14d4472eaf34c99b14e1c973a32b3e6d4eb04298c9" "checksum parking_lot_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cb88cb1cb3790baa6776844f968fea3be44956cf184fa1be5a03341f5491278c" "checksum parking_lot_core 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b876b1b9e7ac6e1a74a6da34d25c42e17e8862aa409cbbbdcfc8d86c6f3bc62b" +"checksum parking_lot_core 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7582838484df45743c8434fbff785e8edf260c28748353d44bc0da32e0ceabf1" "checksum percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831" "checksum phf 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)" = "b3da44b85f8e8dfaec21adae67f95d93244b2ecf6ad2a692320598dcc8e6dd18" "checksum phf_codegen 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)" = "b03e85129e324ad4166b06b2c7491ae27fe3ec353af72e72cd1654c7225d517e" @@ -2845,6 +2893,7 @@ dependencies = [ "checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a" "checksum quote 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9949cfe66888ffe1d53e6ec9d9f3b70714083854be20fd5e271b232a017401e8" "checksum quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1" +"checksum r2d2 0.8.7 (registry+https://github.com/rust-lang/crates.io-index)" = "22b5c5fc5fba064373f03887337b412e0e1562d63023393db77251146cb75553" "checksum rand 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)" = "64ac302d8f83c0c1974bf758f6b041c6c8ada916fbb44a609158ca8b064cc76c" "checksum rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293" "checksum rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6d71dacdc3c88c1fde3885a3be3fbab9f35724e6ce99467f7d9c5026132184ca" @@ -2879,6 +2928,7 @@ dependencies = [ "checksum ryu 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c92464b447c0ee8c4fb3824ecc8383b81717b9f1e74ba2e72540aef7b9f82997" "checksum safemem 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ef703b7cb59335eae2eb93ceb664c0eb7ea6bf567079d843e09420219668e072" "checksum schannel 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "87f550b06b6cba9c8b8be3ee73f391990116bf527450d2556e9b9ce263b9a021" +"checksum scheduled-thread-pool 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "f5de7bc31f28f8e6c28df5e1bf3d10610f5fdc14cc95f272853512c70a2bd779" "checksum scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "94258f53601af11e6a49f722422f6e3425c52b06245a5cf9bc09908b174f5e27" "checksum scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b42e15e59b18a828bbf5c58ea01debb36b9b096346de35d941dcb89009f24a0d" "checksum security-framework 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "eee63d0f4a9ec776eeb30e220f0bc1e092c3ad744b2a379e3993070364d3adc2" @@ -2899,6 +2949,7 @@ dependencies = [ "checksum siphasher 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0b8de496cf83d4ed58b6be86c3a275b8602f6ffe98d3024a869e124147a9a3ac" "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8" "checksum smallvec 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "ab606a9c5e214920bb66c458cd7be8ef094f813f20fe77a54cc7dbfff220d4b7" +"checksum smallvec 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ecf3b85f68e8abaa7555aa5abdb1153079387e60b718283d732f03897fcfc86" "checksum socket2 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "4e626972d3593207547f14bf5fc9efa4d0e7283deb73fef1dff313dae9ab8878" "checksum spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44363f6f51401c34e7be73db0db371c04705d35efbe9f7d6082e03a921a32c55" "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8" diff --git a/server/Cargo.toml b/server/Cargo.toml index 77c90882..f7517153 100644 --- a/server/Cargo.toml +++ b/server/Cargo.toml @@ -5,7 +5,7 @@ authors = ["Dessalines "] edition = "2018" [dependencies] -diesel = { version = "1.4.2", features = ["postgres","chrono"] } +diesel = { version = "1.4.2", features = ["postgres","chrono", "r2d2"] } diesel_migrations = "1.4.0" dotenv = "0.14.1" bcrypt = "0.5.0" diff --git a/server/config/defaults.hjson b/server/config/defaults.hjson index 36d6d6fd..05cfbec2 100644 --- a/server/config/defaults.hjson +++ b/server/config/defaults.hjson @@ -5,6 +5,7 @@ host: "localhost" port: 5432 database: "lemmy" + pool_size: 5 } hostname: "rrr" bind: "0.0.0.0" diff --git a/server/src/db/mod.rs b/server/src/db/mod.rs index 5d3a0920..7824580d 100644 --- a/server/src/db/mod.rs +++ b/server/src/db/mod.rs @@ -1,5 +1,7 @@ +extern crate lazy_static; use crate::settings::Settings; use diesel::dsl::*; +use diesel::r2d2::*; use diesel::result::Error; use diesel::*; use serde::{Deserialize, Serialize}; @@ -109,9 +111,19 @@ impl MaybeOptional for Option { } } -pub fn establish_connection() -> PgConnection { - let db_url = Settings::get().get_database_url(); - PgConnection::establish(&db_url).expect(&format!("Error connecting to {}", db_url)) +lazy_static! { + static ref PG_POOL: Pool> = { + let db_url = Settings::get().get_database_url(); + let manager = ConnectionManager::::new(&db_url); + Pool::builder() + .max_size(Settings::get().database.pool_size) + .build(manager) + .expect(&format!("Error connecting to {}", db_url)) + }; +} + +pub fn establish_connection() -> PooledConnection> { + return PG_POOL.get().unwrap(); } #[derive(EnumString, ToString, Debug, Serialize, Deserialize)] diff --git a/server/src/settings.rs b/server/src/settings.rs index 77497631..7d558c5e 100644 --- a/server/src/settings.rs +++ b/server/src/settings.rs @@ -43,6 +43,7 @@ pub struct Database { pub host: String, pub port: i32, pub database: String, + pub pool_size: u32, } lazy_static! {