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Expose db.SetMaxOpenConns and allow non MySQL dbs to set conn pool params (#8528)
* 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>
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@ -317,10 +317,12 @@ LOG_SQL = true
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DB_RETRIES = 10
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; Backoff time per DB retry (time.Duration)
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DB_RETRY_BACKOFF = 3s
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; Max idle database connections on connnection pool, default is 0
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MAX_IDLE_CONNS = 0
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; Database connection max life time, default is 3s
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; Max idle database connections on connnection pool, default is 2
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MAX_IDLE_CONNS = 2
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; Database connection max life time, default is 0 or 3s mysql (See #6804 & #7071 for reasoning)
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CONN_MAX_LIFETIME = 3s
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; Database maximum number of open connections, default is 0 meaning no maximum
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MAX_OPEN_CONNS = 0
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[indexer]
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; Issue indexer type, currently support: bleve or db, default is bleve
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@ -870,6 +872,6 @@ TOKEN =
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QUEUE_TYPE = channel
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; Task queue length, available only when `QUEUE_TYPE` is `channel`.
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QUEUE_LENGTH = 1000
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; Task queue connction string, available only when `QUEUE_TYPE` is `redis`.
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; Task queue connection string, available only when `QUEUE_TYPE` is `redis`.
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; If there is a password of redis, use `addrs=127.0.0.1:6379 password=123 db=0`.
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QUEUE_CONN_STR = "addrs=127.0.0.1:6379 db=0"
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@ -192,8 +192,12 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
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- `LOG_SQL`: **true**: Log the executed SQL.
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- `DB_RETRIES`: **10**: How many ORM init / DB connect attempts allowed.
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- `DB_RETRY_BACKOFF`: **3s**: time.Duration to wait before trying another ORM init / DB connect attempt, if failure occured.
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- `MAX_IDLE_CONNS` **0**: Max idle database connections on connnection pool, default is 0
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- `CONN_MAX_LIFETIME` **3s**: Database connection max lifetime
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- `MAX_OPEN_CONNS` **0**: Database maximum open connections - default is 0, meaning there is no limit.
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- `MAX_IDLE_CONNS` **2**: Max idle database connections on connnection pool, default is 2 - this will be capped to `MAX_OPEN_CONNS`.
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- `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).
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Please see #8540 & #8273 for further discussion of the appropriate values for `MAX_OPEN_CONNS`, `MAX_IDLE_CONNS` & `CONN_MAX_LIFETIME` and their
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relation to port exhaustion.
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## Indexer (`indexer`)
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@ -157,11 +157,9 @@ func SetEngine() (err error) {
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// so use log file to instead print to stdout.
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x.SetLogger(NewXORMLogger(setting.Database.LogSQL))
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x.ShowSQL(setting.Database.LogSQL)
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if setting.Database.UseMySQL {
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x.SetMaxIdleConns(setting.Database.MaxIdleConns)
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x.SetConnMaxLifetime(setting.Database.ConnMaxLifetime)
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}
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x.SetMaxOpenConns(setting.Database.MaxOpenConns)
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x.SetMaxIdleConns(setting.Database.MaxIdleConns)
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x.SetConnMaxLifetime(setting.Database.ConnMaxLifetime)
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return nil
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}
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@ -42,12 +42,11 @@ var (
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DBConnectRetries int
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DBConnectBackoff time.Duration
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MaxIdleConns int
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MaxOpenConns int
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ConnMaxLifetime time.Duration
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IterateBufferSize int
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}{
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Timeout: 500,
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MaxIdleConns: 0,
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ConnMaxLifetime: 3 * time.Second,
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Timeout: 500,
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}
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)
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@ -80,8 +79,13 @@ func InitDBConfig() {
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Database.Charset = sec.Key("CHARSET").In("utf8", []string{"utf8", "utf8mb4"})
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Database.Path = sec.Key("PATH").MustString(filepath.Join(AppDataPath, "gitea.db"))
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Database.Timeout = sec.Key("SQLITE_TIMEOUT").MustInt(500)
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Database.MaxIdleConns = sec.Key("MAX_IDLE_CONNS").MustInt(0)
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Database.ConnMaxLifetime = sec.Key("CONN_MAX_LIFE_TIME").MustDuration(3 * time.Second)
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Database.MaxIdleConns = sec.Key("MAX_IDLE_CONNS").MustInt(2)
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if Database.UseMySQL {
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Database.ConnMaxLifetime = sec.Key("CONN_MAX_LIFE_TIME").MustDuration(3 * time.Second)
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} else {
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Database.ConnMaxLifetime = sec.Key("CONN_MAX_LIFE_TIME").MustDuration(0)
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}
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Database.MaxOpenConns = sec.Key("MAX_OPEN_CONNS").MustInt(0)
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Database.IterateBufferSize = sec.Key("ITERATE_BUFFER_SIZE").MustInt(50)
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Database.LogSQL = sec.Key("LOG_SQL").MustBool(true)
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