module Main (main) where
+import Data.Char (toUpper)
import Data.List
import Data.Function
-import Data.Maybe (isJust, fromJust, isNothing)
import Monad
import System
import System.IO
import System.Console.GetOpt
import qualified System
-import Text.Printf (printf)
+import Text.Printf (printf, hPrintf)
import qualified Ganeti.HTools.Container as Container
import qualified Ganeti.HTools.Cluster as Cluster
import qualified Ganeti.HTools.CLI as CLI
import Ganeti.HTools.Utils
+import Ganeti.HTools.Types
-- | Command line options structure.
data Options = Options
instFile = optInstf
instSet = optInstSet
masterName = optMaster
- silent a = (optVerbose a) == 0
+ silent a = optVerbose a == 0
-- | Default values for the command line options.
defaultOptions :: Options
(ReqArg (\ m opts -> opts { optMaster = m }) "ADDRESS")
"collect data via RAPI at the given ADDRESS"
, Option ['v'] ["verbose"]
- (NoArg (\ opts -> opts { optVerbose = (optVerbose opts) + 1 }))
+ (NoArg (\ opts -> opts { optVerbose = optVerbose opts + 1 }))
"increase the verbosity level"
, Option ['q'] ["quiet"]
- (NoArg (\ opts -> opts { optVerbose = (optVerbose opts) - 1 }))
+ (NoArg (\ opts -> opts { optVerbose = optVerbose opts - 1 }))
"decrease the verbosity level"
, Option ['O'] ["offline"]
(ReqArg (\ n opts -> opts { optOffline = n:optOffline opts }) "NODE")
"show help"
]
-filterFails :: Cluster.AllocSolution
- -> Maybe [(Node.List, Instance.Instance, [Node.Node])]
-filterFails sols =
- if null sols then Nothing -- No nodes onto which to allocate at all
- else let sols' = filter (isJust . fst3) sols
- in if null sols' then
- Nothing -- No valid allocation solutions
- else
- return $ map (\(x, y, z) -> (fromJust x, y, z)) sols'
-
-processResults :: (Monad m) => [(Node.List, Instance.Instance, [Node.Node])]
- -> m (Node.List, Instance.Instance, [Node.Node])
-processResults sols =
- let sols' = map (\e@(nl', _, _) -> (Cluster.compCV nl', e)) sols
- sols'' = sortBy (compare `on` fst) sols'
- in return $ snd $ head sols''
-
+data Phase = PInitial | PFinal
+
+statsData :: [(String, Cluster.CStats -> String)]
+statsData = [ ("SCORE", printf "%.8f" . Cluster.cs_score)
+ , ("INST_CNT", printf "%d" . Cluster.cs_ninst)
+ , ("MEM_FREE", printf "%d" . Cluster.cs_fmem)
+ , ("MEM_AVAIL", printf "%d" . Cluster.cs_amem)
+ , ("MEM_RESVD",
+ \cs -> printf "%d" (Cluster.cs_fmem cs - Cluster.cs_amem cs))
+ , ("MEM_INST", printf "%d" . Cluster.cs_imem)
+ , ("MEM_OVERHEAD",
+ \cs -> printf "%d" (Cluster.cs_xmem cs + Cluster.cs_nmem cs))
+ , ("MEM_EFF",
+ \cs -> printf "%.8f" (fromIntegral (Cluster.cs_imem cs) /
+ Cluster.cs_tmem cs))
+ , ("DSK_FREE", printf "%d" . Cluster.cs_fdsk)
+ , ("DSK_AVAIL", printf "%d ". Cluster.cs_adsk)
+ , ("DSK_RESVD",
+ \cs -> printf "%d" (Cluster.cs_fdsk cs - Cluster.cs_adsk cs))
+ , ("DSK_INST", printf "%d" . Cluster.cs_idsk)
+ , ("DSK_EFF",
+ \cs -> printf "%.8f" (fromIntegral (Cluster.cs_idsk cs) /
+ Cluster.cs_tdsk cs))
+ , ("CPU_INST", printf "%d" . Cluster.cs_icpu)
+ , ("CPU_EFF",
+ \cs -> printf "%.8f" (fromIntegral (Cluster.cs_icpu cs) /
+ Cluster.cs_tcpu cs))
+ , ("MNODE_MEM_AVAIL", printf "%d" . Cluster.cs_mmem)
+ , ("MNODE_DSK_AVAIL", printf "%d" . Cluster.cs_mdsk)
+ ]
+
+specData :: [(String, Options -> String)]
+specData = [ ("MEM", printf "%d" . optIMem)
+ , ("DSK", printf "%d" . optIDsk)
+ , ("CPU", printf "%d" . optIVCPUs)
+ , ("RQN", printf "%d" . optINodes)
+ ]
+
+clusterData :: [(String, Cluster.CStats -> String)]
+clusterData = [ ("MEM", printf "%.0f" . Cluster.cs_tmem)
+ , ("DSK", printf "%.0f" . Cluster.cs_tdsk)
+ , ("CPU", printf "%.0f" . Cluster.cs_tcpu)
+ ]
+
+-- | Recursively place instances on the cluster until we're out of space
iterateDepth :: Node.List
-> Instance.List
-> Instance.Instance
-> Int
-> [Instance.Instance]
- -> (Node.List, [Instance.Instance])
+ -> ([(FailMode, Int)], Node.List, [Instance.Instance])
iterateDepth nl il newinst nreq ixes =
let depth = length ixes
- newname = (printf "new-%d" depth)::String
- newidx = (length $ Container.elems il) + depth
+ newname = printf "new-%d" depth::String
+ newidx = length (Container.elems il) + depth
newi2 = Instance.setIdx (Instance.setName newinst newname) newidx
- sols = (Cluster.tryAlloc nl il newi2 nreq)::
- Maybe Cluster.AllocSolution
- orig = (nl, ixes)
- in
- if isNothing sols then orig
- else let sols' = fromJust sols
- sols'' = filterFails sols'
- in if isNothing sols'' then orig
- else let (xnl, xi, _) = fromJust $ processResults $
- fromJust sols''
- in iterateDepth xnl il newinst nreq (xi:ixes)
-
-printStats :: String -> Cluster.CStats -> IO ()
-printStats kind cs = do
- printf "%s free RAM: %d\n" kind (Cluster.cs_fmem cs)
- printf "%s allocatable RAM: %d\n" kind (Cluster.cs_amem cs)
- printf "%s reserved RAM: %d\n" kind ((Cluster.cs_fmem cs) -
- (Cluster.cs_amem cs))
- printf "%s free disk: %d\n" kind (Cluster.cs_fdsk cs)
- printf "%s allocatable disk: %d\n" kind (Cluster.cs_adsk cs)
- printf "%s reserved disk: %d\n" kind ((Cluster.cs_fdsk cs) -
- (Cluster.cs_adsk cs))
- printf "%s max node allocatable RAM: %d\n" kind (Cluster.cs_mmem cs)
- printf "%s max node allocatable disk: %d\n" kind (Cluster.cs_mdsk cs)
+ sols = Cluster.tryAlloc nl il newi2 nreq::
+ OpResult Cluster.AllocSolution
+ in case sols of
+ OpFail _ -> ([], nl, ixes)
+ OpGood (errs, _, sols3) ->
+ case sols3 of
+ Nothing -> (Cluster.collapseFailures errs, nl, ixes)
+ Just (_, (xnl, xi, _)) ->
+ iterateDepth xnl il newinst nreq $! (xi:ixes)
+
+-- | Function to print stats for a given phase
+printStats :: Phase -> Cluster.CStats -> [(String, String)]
+printStats ph cs =
+ map (\(s, fn) -> (printf "%s_%s" kind s, fn cs)) statsData
+ where kind = case ph of
+ PInitial -> "INI"
+ PFinal -> "FIN"
+
+-- | Print final stats and related metrics
+printResults :: Node.List -> Int -> Int -> [(FailMode, Int)] -> IO ()
+printResults fin_nl num_instances allocs sreason = do
+ let fin_stats = Cluster.totalResources fin_nl
+ fin_instances = num_instances + allocs
+
+ when (num_instances + allocs /= Cluster.cs_ninst fin_stats) $
+ do
+ hPrintf stderr "ERROR: internal inconsistency, allocated (%d)\
+ \ != counted (%d)\n" (num_instances + allocs)
+ (Cluster.cs_ninst fin_stats)
+ exitWith $ ExitFailure 1
+
+ printKeys $ printStats PFinal fin_stats
+ printKeys [ ("ALLOC_USAGE", printf "%.8f"
+ ((fromIntegral num_instances::Double) /
+ fromIntegral fin_instances))
+ , ("ALLOC_COUNT", printf "%d" allocs)
+ , ("ALLOC_FAIL_REASON", map toUpper . show . fst $ head sreason)
+ ]
+ printKeys $ map (\(x, y) -> (printf "ALLOC_%s_CNT" (show x),
+ printf "%d" y)) sreason
+ -- this should be the final entry
+ printKeys [("OK", "1")]
+
+-- | Format a list of key/values as a shell fragment
+printKeys :: [(String, String)] -> IO ()
+printKeys = mapM_ (\(k, v) -> printf "HTS_%s=%s\n" (map toUpper k) v)
-- | Main function.
main :: IO ()
let verbose = optVerbose opts
(fixed_nl, il, csf) <- CLI.loadExternalData opts
+
+ printKeys $ map (\(a, fn) -> ("SPEC_" ++ a, fn opts)) specData
+
let num_instances = length $ Container.elems il
let offline_names = optOffline opts
all_nodes = Container.elems fixed_nl
all_names = map Node.name all_nodes
- offline_wrong = filter (\n -> not $ elem n all_names) offline_names
+ offline_wrong = filter (flip notElem all_names) offline_names
offline_indices = map Node.idx $
filter (\n -> elem (Node.name n) offline_names)
all_nodes
m_dsk = optMdsk opts
when (length offline_wrong > 0) $ do
- printf "Error: Wrong node name(s) set as offline: %s\n"
- (commaJoin offline_wrong)
+ hPrintf stderr "Error: Wrong node name(s) set as offline: %s\n"
+ (commaJoin offline_wrong)
exitWith $ ExitFailure 1
when (req_nodes /= 1 && req_nodes /= 2) $ do
- printf "Error: Invalid required nodes (%d)\n" req_nodes
+ hPrintf stderr "Error: Invalid required nodes (%d)\n" req_nodes
exitWith $ ExitFailure 1
let nm = Container.map (\n -> if elem (Node.idx n) offline_indices
nl = Container.map (flip Node.setMdsk m_dsk . flip Node.setMcpu m_cpu)
nm
- when (length csf > 0 && verbose > 1) $ do
- printf "Note: Stripping common suffix of '%s' from names\n" csf
-
- let bad_nodes = fst $ Cluster.computeBadItems nl il
- when (length bad_nodes > 0) $ do
- putStrLn "Error: Cluster not N+1, no space to allocate."
- exitWith $ ExitFailure 1
+ when (length csf > 0 && verbose > 1) $
+ hPrintf stderr "Note: Stripping common suffix of '%s' from names\n" csf
when (optShowNodes opts) $
do
- putStrLn "Initial cluster status:"
- putStrLn $ Cluster.printNodes nl
+ hPutStrLn stderr "Initial cluster status:"
+ hPutStrLn stderr $ Cluster.printNodes nl
let ini_cv = Cluster.compCV nl
ini_stats = Cluster.totalResources nl
- (if verbose > 2 then
- printf "Initial coefficients: overall %.8f, %s\n"
- ini_cv (Cluster.printStats nl)
- else
- printf "Initial score: %.8f\n" ini_cv)
- printf "Initial instances: %d\n" num_instances
- printStats "Initial" ini_stats
+ when (verbose > 2) $ do
+ hPrintf stderr "Initial coefficients: overall %.8f, %s\n"
+ ini_cv (Cluster.printStats nl)
+
+ printKeys $ map (\(a, fn) -> ("CLUSTER_" ++ a, fn ini_stats)) clusterData
+ printKeys [("CLUSTER_NODES", printf "%d" (length all_nodes))]
+ printKeys $ printStats PInitial ini_stats
+
+ let bad_nodes = fst $ Cluster.computeBadItems nl il
+ when (length bad_nodes > 0) $ do
+ -- This is failn1 case, so we print the same final stats and
+ -- exit early
+ printResults nl num_instances 0 [(FailN1, 1)]
+ exitWith ExitSuccess
let nmlen = Container.maxNameLen nl
newinst = Instance.create "new" (optIMem opts) (optIDsk opts)
(optIVCPUs opts) "ADMIN_down" (-1) (-1)
- let (fin_nl, ixes) = iterateDepth nl il newinst req_nodes []
+ let (ereason, fin_nl, ixes) = iterateDepth nl il newinst req_nodes []
allocs = length ixes
- fin_instances = num_instances + allocs
fin_ixes = reverse ixes
ix_namelen = maximum . map (length . Instance.name) $ fin_ixes
- fin_stats = Cluster.totalResources fin_nl
-
- printf "Final score: %.8f\n" (Cluster.compCV fin_nl)
- printf "Final instances: %d\n" (num_instances + allocs)
- printStats "Final" fin_stats
- printf "Usage: %.5f\n" (((fromIntegral num_instances)::Double) /
- (fromIntegral fin_instances))
- printf "Allocations: %d\n" allocs
- when (verbose > 1) $ do
- putStr . unlines . map (\i -> printf "Inst: %*s %-*s %-*s"
- ix_namelen (Instance.name i)
- nmlen (Container.nameOf fin_nl $ Instance.pnode i)
- nmlen (let sdx = Instance.snode i
- in if sdx == Node.noSecondary then ""
- else Container.nameOf fin_nl sdx))
- $ fin_ixes
+ sreason = reverse $ sortBy (compare `on` snd) ereason
+
+ when (verbose > 1) $
+ hPutStr stderr . unlines $
+ map (\i -> printf "Inst: %*s %-*s %-*s"
+ ix_namelen (Instance.name i)
+ nmlen (Container.nameOf fin_nl $ Instance.pnode i)
+ nmlen (let sdx = Instance.snode i
+ in if sdx == Node.noSecondary then ""
+ else Container.nameOf fin_nl sdx)
+ ) fin_ixes
when (optShowNodes opts) $
do
- putStrLn ""
- putStrLn "Final cluster status:"
- putStrLn $ Cluster.printNodes fin_nl
+ hPutStrLn stderr ""
+ hPutStrLn stderr "Final cluster status:"
+ hPutStrLn stderr $ Cluster.printNodes fin_nl
+
+ printResults fin_nl num_instances allocs sreason
projects / ganeti-local / blobdiff