From ece768ab6e7f921624a707602466b872032231ad Mon Sep 17 00:00:00 2001 From: zeripath Date: Tue, 22 Oct 2019 07:00:37 +0100 Subject: [PATCH] Expose db.SetMaxOpenConns and allow non MySQL dbs to set conn pool params (#8528) (#8618) * Expose db.SetMaxOpenConns and allow other dbs to set their connection params * Add note about port exhaustion Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com> --- custom/conf/app.ini.sample | 12 +++++++----- .../doc/advanced/config-cheat-sheet.en-us.md | 8 ++++++-- models/models.go | 8 +++----- modules/setting/database.go | 14 +++++++++----- 4 files changed, 25 insertions(+), 17 deletions(-) diff --git a/custom/conf/app.ini.sample b/custom/conf/app.ini.sample index eb629a979..e2f88ca30 100644 --- a/custom/conf/app.ini.sample +++ b/custom/conf/app.ini.sample @@ -277,10 +277,12 @@ LOG_SQL = true DB_RETRIES = 10 ; Backoff time per DB retry (time.Duration) DB_RETRY_BACKOFF = 3s -; Max idle database connections on connnection pool, default is 0 -MAX_IDLE_CONNS = 0 -; Database connection max life time, default is 3s +; Max idle database connections on connnection pool, default is 2 +MAX_IDLE_CONNS = 2 +; Database connection max life time, default is 0 or 3s mysql (See #6804 & #7071 for reasoning) CONN_MAX_LIFETIME = 3s +; Database maximum number of open connections, default is 0 meaning no maximum +MAX_OPEN_CONNS = 0 [indexer] ; Issue indexer type, currently support: bleve or db, default is bleve @@ -823,6 +825,6 @@ TOKEN = QUEUE_TYPE = channel ; Task queue length, available only when `QUEUE_TYPE` is `channel`. QUEUE_LENGTH = 1000 -; Task queue connction string, available only when `QUEUE_TYPE` is `redis`. +; Task queue connection string, available only when `QUEUE_TYPE` is `redis`. ; If there is a password of redis, use `addrs=127.0.0.1:6379 password=123 db=0`. -QUEUE_CONN_STR = "addrs=127.0.0.1:6379 db=0" \ No newline at end of file +QUEUE_CONN_STR = "addrs=127.0.0.1:6379 db=0" diff --git a/docs/content/doc/advanced/config-cheat-sheet.en-us.md b/docs/content/doc/advanced/config-cheat-sheet.en-us.md index 2e0ff9191..bdf87d29f 100644 --- a/docs/content/doc/advanced/config-cheat-sheet.en-us.md +++ b/docs/content/doc/advanced/config-cheat-sheet.en-us.md @@ -167,8 +167,12 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`. - `LOG_SQL`: **true**: Log the executed SQL. - `DB_RETRIES`: **10**: How many ORM init / DB connect attempts allowed. - `DB_RETRY_BACKOFF`: **3s**: time.Duration to wait before trying another ORM init / DB connect attempt, if failure occured. -- `MAX_IDLE_CONNS` **0**: Max idle database connections on connnection pool, default is 0 -- `CONN_MAX_LIFETIME` **3s**: Database connection max lifetime +- `MAX_OPEN_CONNS` **0**: Database maximum open connections - default is 0, meaning there is no limit. +- `MAX_IDLE_CONNS` **2**: Max idle database connections on connnection pool, default is 2 - this will be capped to `MAX_OPEN_CONNS`. +- `CONN_MAX_LIFETIME` **0 or 3s**: Sets the maximum amount of time a DB connection may be reused - default is 0, meaning there is no limit (except on MySQL where it is 3s - see #6804 & #7071). + +Please see #8540 & #8273 for further discussion of the appropriate values for `MAX_OPEN_CONNS`, `MAX_IDLE_CONNS` & `CONN_MAX_LIFETIME` and their +relation to port exhaustion. ## Indexer (`indexer`) diff --git a/models/models.go b/models/models.go index ea550cb83..b963dec17 100644 --- a/models/models.go +++ b/models/models.go @@ -157,11 +157,9 @@ func SetEngine() (err error) { // so use log file to instead print to stdout. x.SetLogger(NewXORMLogger(setting.Database.LogSQL)) x.ShowSQL(setting.Database.LogSQL) - if setting.Database.UseMySQL { - x.SetMaxIdleConns(setting.Database.MaxIdleConns) - x.SetConnMaxLifetime(setting.Database.ConnMaxLifetime) - } - + x.SetMaxOpenConns(setting.Database.MaxOpenConns) + x.SetMaxIdleConns(setting.Database.MaxIdleConns) + x.SetConnMaxLifetime(setting.Database.ConnMaxLifetime) return nil } diff --git a/modules/setting/database.go b/modules/setting/database.go index 2cac4824d..8c49ba3c5 100644 --- a/modules/setting/database.go +++ b/modules/setting/database.go @@ -42,12 +42,11 @@ var ( DBConnectRetries int DBConnectBackoff time.Duration MaxIdleConns int + MaxOpenConns int ConnMaxLifetime time.Duration IterateBufferSize int }{ - Timeout: 500, - MaxIdleConns: 0, - ConnMaxLifetime: 3 * time.Second, + Timeout: 500, } ) @@ -80,8 +79,13 @@ func InitDBConfig() { Database.Charset = sec.Key("CHARSET").In("utf8", []string{"utf8", "utf8mb4"}) Database.Path = sec.Key("PATH").MustString(filepath.Join(AppDataPath, "gitea.db")) Database.Timeout = sec.Key("SQLITE_TIMEOUT").MustInt(500) - Database.MaxIdleConns = sec.Key("MAX_IDLE_CONNS").MustInt(0) - Database.ConnMaxLifetime = sec.Key("CONN_MAX_LIFE_TIME").MustDuration(3 * time.Second) + Database.MaxIdleConns = sec.Key("MAX_IDLE_CONNS").MustInt(2) + if Database.UseMySQL { + Database.ConnMaxLifetime = sec.Key("CONN_MAX_LIFE_TIME").MustDuration(3 * time.Second) + } else { + Database.ConnMaxLifetime = sec.Key("CONN_MAX_LIFE_TIME").MustDuration(0) + } + Database.MaxOpenConns = sec.Key("MAX_OPEN_CONNS").MustInt(0) Database.IterateBufferSize = sec.Key("ITERATE_BUFFER_SIZE").MustInt(50) Database.LogSQL = sec.Key("LOG_SQL").MustBool(true)