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HS_BIN_ROLES = hbal hscan hspace hinfo hcheck

	htools/Ganeti/HTools/Program/Hcheck.hs \

  man/hcheck.1 \

  , oNoSimulation

  , optNoSimulation :: Bool          -- ^ Skip the rebalancing dry-run

  , optNoSimulation = False

oNoSimulation :: OptType

oNoSimulation = Option "" ["no-simulation"]

                (NoArg (\opts -> Ok opts {optNoSimulation = True}))

                "do not perform rebalancing simulation"

import qualified Ganeti.HTools.Program.Hcheck as Hcheck

                , ("hcheck", (Hcheck.main, Hcheck.options))

{-| Cluster checker.

-}

{-

Copyright (C) 2012 Google Inc.

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

General Public License for more details.

You should have received a copy of the GNU Gene52al Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301, USA.

-}

module Ganeti.HTools.Program.Hcheck (main, options) where

import Control.Monad

import System.Exit

import System.IO

import Ganeti.HTools.CLI

-- | Options list and functions.

options :: [OptType]

options =

  [ oDataFile

  , oDiskMoves

  , oDynuFile

  , oEvacMode

  , oExInst

  , oExTags

  , oIAllocSrc

  , oInstMoves

  , oLuxiSocket

  , oMachineReadable

  , oMaxCpu

  , oMaxSolLength

  , oMinDisk

  , oMinGain

  , oMinGainLim

  , oMinScore

  , oNoSimulation

  , oOfflineNode

  , oQuiet

  , oRapiMaster

  , oSelInst

  , oShowHelp

  , oShowVer

  , oVerbose

  ]

-- | Main function.

main :: Options -> [String] -> IO ()

main _ args = do

  unless (null args) $ do

         hPutStrLn stderr "Error: this program doesn't take any arguments."

         exitWith $ ExitFailure 1

hcheck() {

  HTOOLS=hinfo $HBINARY "$@"

}

ALL_ROLES="hbal hscan hail hspace hinfo hcheck"

HCHECK(1) Ganeti | Version @GANETI_VERSION@

===========================================

NAME

----

hcheck \- Cluster checker

SYNOPSIS

--------

**hcheck** {backend options...} [algorithm options...] [reporting options...]

**hcheck** \--version

Backend options:

{ **-m** *cluster* | **-L[** *path* **] | **-t** *data-file* |

**-I** *path* }

Algorithm options:

**[ \--no-simulation ]**

**[ \--max-cpu *cpu-ratio* ]**

**[ \--min-disk *disk-ratio* ]**

**[ -l *limit* ]**

**[ -e *score* ]**

**[ -g *delta* ]** **[ \--min-gain-limit *threshold* ]**

**[ -O *name...* ]**

**[ \--no-disk-moves ]**

**[ \--no-instance-moves ]**

**[ -U *util-file* ]**

**[ \--evac-mode ]**

**[ \--select-instances *inst...* ]**

**[ \--exclude-instances *inst...* ]**

Reporting options:

**[\--machine-readable**[=*CHOICE*] **]**

**[ -p[ *fields* ] ]**

**[ \--print-instances ]**

**[ -v... | -q ]**

DESCRIPTION

-----------

hcheck is the cluster checker. It prints information about cluster's

health and checks whether a rebalance done using **hbal** would help.

This information can be presented in both human-readable and

machine-readable way.

Note that it does not take any action, only performs a rebalance

simulation if necessary.

For more information about the algorithm details check **hbal(1)**.

OPTIONS

-------

\--no-simulation

  Only perform checks based on current cluster state, without trying

  to simulate rebalancing.

For a detailed description about the options listed above have a look at

**htools(7)**, **hspace(1)** and **hbal(1)**.

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**hcheck**

  cluster checker

Installed as ``hcheck``, it preforms cluster checks and optionally

simulates rebalancing with all the ``hbal`` options available.