Safe Haskell	None

Ganeti.HTools.Cluster.MetricsTH

Description

Declaration of the datatypes and functions dealing with cluster metrics generated by template haskell.

Synopsis

Documentation

data MetricComponent Source

Data type describing the metric component. The information provided by this data type is used to generate statistics data types and functions dealing with them

Constructors

MetricComponent

Fields

name :: String: The component name
weight :: Q Exp: The component weight in the statistics sum
fromNode :: Q Exp: Quasi quoted function obtaining spread value from a node given (Node.Node -> fromNodeType)
fromNodeType :: Q Type: Quasi quoted spread value type
statisticsType :: Q Type: Quasi quoted statistics data type. Stat instance for fromNodeType and statisticsType should be defined
forOnlineNodes :: Bool: Whether this component should be calculated for online or offline nodes
optimalValue :: Maybe ExpQ: Maybe quasi quoted function obtaining optimal value of such component (Node.List -> Double)

declareStatistics :: [MetricComponent] -> Q [Dec]Source

Declares all functions and data types implemented in template haskell

getVarStrictTypeQ :: (String, Q Type) -> VarStrictTypeQSource

nodeValuesDecl :: [MetricComponent] -> Q [Dec]Source

clusterStatisticsDecl :: [MetricComponent] -> Q [Dec]Source

getNodeValuesDecl :: [MetricComponent] -> Q [Dec]Source

appTwice :: Q Exp -> Q Exp -> Q Exp -> Q ExpSource

getQNameExp :: String -> Q Exp -> Q (Name, Exp)Source

compClusterStatisticsDecl :: [MetricComponent] -> Q [Dec]Source

updateClusterStatisticsDecl :: [MetricComponent] -> Q [Dec]Source

compCVfromStatsDecl :: [MetricComponent] -> Q [Dec]Source

showClusterStatisticsDecl :: [MetricComponent] -> Q [Dec]Source

optimalCVScoreDecl :: [MetricComponent] -> Q [Dec]Source