Modulehedis-0.16.4Haskell2010

Database.Redis.Cluster

7 types
9 values

Packagehedis-0.16.4
Exports16
LanguageHaskell2010
LicenceBSD-3-Clause
SourceCluster.hs

datadata Connection

A connection to a redis cluster, it is composed of a map from Node IDs to | NodeConnections, a Pipeline, and a ShardMap

Constructors

Connection
- connectionNodes :: HashMap NodeID NodeConnection
- connectionPipeline :: MVar Pipeline
- connectionShardMap :: MVar ShardMap
- connectionInfoMap :: InfoMap
- connectionHooks :: Hooks

datadata NodeRole

Master Slave

Instances3Eq, Ord, Show

Eq NodeRoleDefined in hedis-0.16.4 · Database.Redis.Cluster
Ord NodeRoleDefined in hedis-0.16.4 · Database.Redis.Cluster
Show NodeRoleDefined in hedis-0.16.4 · Database.Redis.Cluster

datadata NodeConnection

A connection to a single node in the cluster, similar to ProtocolPipelining.Connection

Constructors

NodeConnection
- nodeConnectionContext :: ConnectionContext
- nodeConnectionLastRecvRef :: IORef (Maybe ByteString)
- nodeConnectionNodeId :: NodeID

Instances2Eq, Ord

Eq NodeConnectionDefined in hedis-0.16.4 · Database.Redis.Cluster
Ord NodeConnectionDefined in hedis-0.16.4 · Database.Redis.Cluster

datadata Node

Represents a single node, note that this type does not include the connection to the node because the shard map can be shared amongst multiple connections

Constructors

Node
- nodeId :: NodeID
- nodeRole :: NodeRole
- nodeHost :: Host
- nodePort :: Port

Instances3Eq, Ord, Show

Eq NodeDefined in hedis-0.16.4 · Database.Redis.Cluster
Ord NodeDefined in hedis-0.16.4 · Database.Redis.Cluster
Show NodeDefined in hedis-0.16.4 · Database.Redis.Cluster

newtypenewtype ShardMap

A map from hashslot to shards

Constructors

ShardMap (IntMap Shard)

Instances1Show

Show ShardMapDefined in hedis-0.16.4 · Database.Redis.Cluster

newtypenewtype HashSlot

Instances7Enum, Eq, Integral, Num, Ord, Real, …

Enum HashSlotDefined in hedis-0.16.4 · Database.Redis.Cluster.HashSlot
Eq HashSlotDefined in hedis-0.16.4 · Database.Redis.Cluster.HashSlot
Integral HashSlotDefined in hedis-0.16.4 · Database.Redis.Cluster.HashSlot
Num HashSlotDefined in hedis-0.16.4 · Database.Redis.Cluster.HashSlot
Ord HashSlotDefined in hedis-0.16.4 · Database.Redis.Cluster.HashSlot
Real HashSlotDefined in hedis-0.16.4 · Database.Redis.Cluster.HashSlot
Show HashSlotDefined in hedis-0.16.4 · Database.Redis.Cluster.HashSlot

datadata Shard

A shard is a master node and 0 or more slaves, (the master, slave terminology is unfortunate but I felt it better to follow the documentation until it changes).

Constructors

Shard
- shardMaster :: MasterNode
- shardSlaves :: [SlaveNode]

Instances3Eq, Ord, Show

Eq ShardDefined in hedis-0.16.4 · Database.Redis.Cluster
Ord ShardDefined in hedis-0.16.4 · Database.Redis.Cluster
Show ShardDefined in hedis-0.16.4 · Database.Redis.Cluster

valueconnect

:: [CommandInfo]
-> MVar ShardMap
-> Maybe Int
-> Hooks
-> IO Connection

Deprecated. Use connectWith instead, passing Nothing for the parameters you don't need.

Backwards compatible version of connect that can't provide authentication or TLS parameters.

valueconnectWith

Connects to cluster.

valuedisconnect :: Connection -> IO ()

valuerequestPipelined :: IO ShardMap -> Connection -> [ByteString] -> IO Reply

valuenodes :: ShardMap -> [Node]

valuehooks :: Connection -> Hooks

valuerequestMasterNodes :: Connection -> [ByteString] -> IO [Reply]

Send a request to all master nodes in the cluster. This is useful for commands that need to be sent to all master nodes, such as FLUSHALL or `CONFIG SET`.

valuemasterNodes :: Connection -> IO [NodeConnection]

Get connection to a master nodes in the cluster. This is useful for commands that need to be sent to all master nodes, such as FLUSHALL or `CONFIG SET`.

valuegetRandomConnection :: NodeConnection -> Connection -> NodeConnection

Get connection to a random node in the cluster that is not the same as the provided connection.