ganeti-htools Source code Contents Index

Ganeti.HTools.Program.Hbal

Description

Cluster rebalancer.

Synopsis

options :: [OptType] iterateDepth :: Table -> Int -> Bool -> Bool -> Int -> Int -> [MoveJob] -> Bool -> Score -> Score -> Score -> Bool -> IO (Table, [MoveJob]) formatOneline :: Double -> Int -> Double -> String waitForJobs :: Client -> [String] -> IO (Result [JobStatus]) checkJobsStatus :: [JobStatus] -> Bool execWrapper :: String -> List -> List -> IORef Int -> [JobSet] -> IO Bool execJobSet :: String -> List -> List -> IORef Int -> [JobSet] -> IO Bool hangleSigInt :: IORef Int -> IO () hangleSigTerm :: IORef Int -> IO () runJobSet :: String -> List -> List -> [JobSet] -> IO Bool main :: IO ()

Documentation

options :: [OptType] Source

Options list and functions.

iterateDepth Source

:: Table The starting table -> Int Remaining length -> Bool Allow disk moves -> Bool Allow instance moves -> Int Max node name len -> Int Max instance name len -> [MoveJob] Current command list -> Bool Whether to be silent -> Score Score at which to stop -> Score Min gain limit -> Score Min score gain -> Bool Enable evacuation mode -> IO (Table, [MoveJob]) The resulting table and commands Start computing the solution at the given depth and recurse until we find a valid solution or we exceed the maximum depth.

formatOneline :: Double -> Int -> Double -> String Source

Formats the solution for the oneline display.

waitForJobs :: Client -> [String] -> IO (Result [JobStatus]) Source

Polls a set of jobs at a fixed interval until all are finished one way or another.

checkJobsStatus :: [JobStatus] -> Bool Source

Check that a set of job statuses is all success.

execWrapper :: String -> List -> List -> IORef Int -> [JobSet] -> IO Bool Source

Wrapper over execJobSet checking for early termination.

execJobSet :: String -> List -> List -> IORef Int -> [JobSet] -> IO Bool Source

Execute an entire jobset.

hangleSigInt :: IORef Int -> IO () Source

Signal handler for graceful termination.

hangleSigTerm :: IORef Int -> IO () Source

Signal handler for immediate termination.

runJobSet :: String -> List -> List -> [JobSet] -> IO Bool Source

Runs a job set with handling of signals.

main :: IO () Source

Main function.

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