Safe Haskell	None
Language	GHC2021

Hasql.Pool.Extended

Synopsis

Documentation

Constructors

PoolConfig
Fields size :: Int acquisitionTimeout :: Duration Configured pool acquisition wait time. hasql-resource-pool only accepts whole seconds here, so we round up to the nearest second and pass it through as the pool acquisition timeout. idlenessTimeout :: Duration Controls how long idle connections stay resident in the pool.

Instances details

FromJSON PoolConfig Source #
Instance details Defined in Hasql.Pool.Extended Methods parseJSON :: Value -> Parser PoolConfig Source # parseJSONList :: Value -> Parser [PoolConfig] Source # omittedField :: Maybe PoolConfig Source #
Show PoolConfig Source #
Instance details Defined in Hasql.Pool.Extended Methods showsPrec :: Int -> PoolConfig -> ShowS # show :: PoolConfig -> String # showList :: [PoolConfig] -> ShowS #
Eq PoolConfig Source #
Instance details Defined in Hasql.Pool.Extended Methods (==) :: PoolConfig -> PoolConfig -> Bool # (/=) :: PoolConfig -> PoolConfig -> Bool #

Constructors

HasqlPoolMetrics
Fields readyForUseGauge :: Gauge inUseGauge :: Gauge establishedCounter :: Counter connectionFailureCounter :: Counter acquisitionTimeoutCounter :: Counter sessionFailureCounter :: Counter sessionCounter :: Counter connectionAcquisitionDuration :: Histogram sessionDuration :: Histogram

Constructors

Pool
Fields rawPool :: Pool metrics :: HasqlPoolMetrics poolAcquisitionTimeout :: Duration Pool acquisition timeout in seconds, rounded up from the configured duration. This is used by the session runner to bound waiting for an available connection slot.

Creates a pool from postgres config params.

acquisitionTimeout is mapped to the pool acquisition timeout, idlenessTimeout controls how long idle connections stay resident.