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1 | 66d67ad4 | Iustin Pop | {-| Cluster rebalancer |
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2 | e4f08c46 | Iustin Pop | |
3 | e4f08c46 | Iustin Pop | -} |
4 | e4f08c46 | Iustin Pop | |
5 | e2fa2baf | Iustin Pop | {- |
6 | e2fa2baf | Iustin Pop | |
7 | d5072e4c | Iustin Pop | Copyright (C) 2009, 2010, 2011 Google Inc. |
8 | e2fa2baf | Iustin Pop | |
9 | e2fa2baf | Iustin Pop | This program is free software; you can redistribute it and/or modify |
10 | e2fa2baf | Iustin Pop | it under the terms of the GNU General Public License as published by |
11 | e2fa2baf | Iustin Pop | the Free Software Foundation; either version 2 of the License, or |
12 | e2fa2baf | Iustin Pop | (at your option) any later version. |
13 | e2fa2baf | Iustin Pop | |
14 | e2fa2baf | Iustin Pop | This program is distributed in the hope that it will be useful, but |
15 | e2fa2baf | Iustin Pop | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | e2fa2baf | Iustin Pop | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 | e2fa2baf | Iustin Pop | General Public License for more details. |
18 | e2fa2baf | Iustin Pop | |
19 | e2fa2baf | Iustin Pop | You should have received a copy of the GNU General Public License |
20 | e2fa2baf | Iustin Pop | along with this program; if not, write to the Free Software |
21 | e2fa2baf | Iustin Pop | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
22 | e2fa2baf | Iustin Pop | 02110-1301, USA. |
23 | e2fa2baf | Iustin Pop | |
24 | e2fa2baf | Iustin Pop | -} |
25 | e2fa2baf | Iustin Pop | |
26 | e4f08c46 | Iustin Pop | module Main (main) where |
27 | e4f08c46 | Iustin Pop | |
28 | b2245847 | Iustin Pop | import Control.Concurrent (threadDelay) |
29 | b2245847 | Iustin Pop | import Control.Exception (bracket) |
30 | e4f08c46 | Iustin Pop | import Data.List |
31 | 646aa028 | Iustin Pop | import Data.Maybe (isJust, isNothing, fromJust) |
32 | 03cb89f0 | Iustin Pop | import Data.IORef |
33 | e4f08c46 | Iustin Pop | import Monad |
34 | 0903280b | Iustin Pop | import System (exitWith, ExitCode(..)) |
35 | e4f08c46 | Iustin Pop | import System.IO |
36 | 03cb89f0 | Iustin Pop | import System.Posix.Process |
37 | 03cb89f0 | Iustin Pop | import System.Posix.Signals |
38 | e4f08c46 | Iustin Pop | import qualified System |
39 | e4f08c46 | Iustin Pop | |
40 | 2795466b | Iustin Pop | import Text.Printf (printf, hPrintf) |
41 | e4f08c46 | Iustin Pop | |
42 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.Container as Container |
43 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.Cluster as Cluster |
44 | 10ef6b4e | Iustin Pop | import qualified Ganeti.HTools.Group as Group |
45 | ec18dca9 | Iustin Pop | import qualified Ganeti.HTools.Node as Node |
46 | b2245847 | Iustin Pop | import qualified Ganeti.HTools.Instance as Instance |
47 | 040afc35 | Iustin Pop | |
48 | 0427285d | Iustin Pop | import Ganeti.HTools.CLI |
49 | e8f89bb6 | Iustin Pop | import Ganeti.HTools.ExtLoader |
50 | 669d7e3d | Iustin Pop | import Ganeti.HTools.Utils |
51 | 0e8ae201 | Iustin Pop | import Ganeti.HTools.Types |
52 | 017a0c3d | Iustin Pop | import Ganeti.HTools.Loader (ClusterData(..)) |
53 | e4f08c46 | Iustin Pop | |
54 | b2245847 | Iustin Pop | import qualified Ganeti.Luxi as L |
55 | b2245847 | Iustin Pop | import Ganeti.Jobs |
56 | b2245847 | Iustin Pop | |
57 | e4f08c46 | Iustin Pop | -- | Options list and functions |
58 | 0427285d | Iustin Pop | options :: [OptType] |
59 | e4f08c46 | Iustin Pop | options = |
60 | 0427285d | Iustin Pop | [ oPrintNodes |
61 | 507fda3f | Iustin Pop | , oPrintInsts |
62 | 0427285d | Iustin Pop | , oPrintCommands |
63 | 0427285d | Iustin Pop | , oOneline |
64 | 16c2369c | Iustin Pop | , oDataFile |
65 | 2e28ac32 | Iustin Pop | , oEvacMode |
66 | 0427285d | Iustin Pop | , oRapiMaster |
67 | 0427285d | Iustin Pop | , oLuxiSocket |
68 | b2245847 | Iustin Pop | , oExecJobs |
69 | 646aa028 | Iustin Pop | , oGroup |
70 | 0427285d | Iustin Pop | , oMaxSolLength |
71 | 0427285d | Iustin Pop | , oVerbose |
72 | 0427285d | Iustin Pop | , oQuiet |
73 | 0427285d | Iustin Pop | , oOfflineNode |
74 | 0427285d | Iustin Pop | , oMinScore |
75 | 0427285d | Iustin Pop | , oMaxCpu |
76 | 0427285d | Iustin Pop | , oMinDisk |
77 | 848b65c9 | Iustin Pop | , oMinGain |
78 | 848b65c9 | Iustin Pop | , oMinGainLim |
79 | c0501c69 | Iustin Pop | , oDiskMoves |
80 | aa8d2e71 | Iustin Pop | , oDynuFile |
81 | 0f15cc76 | Iustin Pop | , oExTags |
82 | fcbf0da4 | Iustin Pop | , oExInst |
83 | 748654f7 | Iustin Pop | , oSaveCluster |
84 | 0427285d | Iustin Pop | , oShowVer |
85 | 0427285d | Iustin Pop | , oShowHelp |
86 | 7ef4d93e | Iustin Pop | ] |
87 | e4f08c46 | Iustin Pop | |
88 | 6dc960bc | Iustin Pop | {- | Start computing the solution at the given depth and recurse until |
89 | 6dc960bc | Iustin Pop | we find a valid solution or we exceed the maximum depth. |
90 | 6dc960bc | Iustin Pop | |
91 | 6dc960bc | Iustin Pop | -} |
92 | 6dc960bc | Iustin Pop | iterateDepth :: Cluster.Table -- ^ The starting table |
93 | 6dc960bc | Iustin Pop | -> Int -- ^ Remaining length |
94 | c0501c69 | Iustin Pop | -> Bool -- ^ Allow disk moves |
95 | 6dc960bc | Iustin Pop | -> Int -- ^ Max node name len |
96 | 6dc960bc | Iustin Pop | -> Int -- ^ Max instance name len |
97 | 0e8ae201 | Iustin Pop | -> [MoveJob] -- ^ Current command list |
98 | 24acc2c6 | Guido Trotter | -> Bool -- ^ Whether to be silent |
99 | 92e32d76 | Iustin Pop | -> Score -- ^ Score at which to stop |
100 | 848b65c9 | Iustin Pop | -> Score -- ^ Min gain limit |
101 | 848b65c9 | Iustin Pop | -> Score -- ^ Min score gain |
102 | 2e28ac32 | Iustin Pop | -> Bool -- ^ Enable evacuation mode |
103 | 0e8ae201 | Iustin Pop | -> IO (Cluster.Table, [MoveJob]) -- ^ The resulting table |
104 | 0e8ae201 | Iustin Pop | -- and commands |
105 | c0501c69 | Iustin Pop | iterateDepth ini_tbl max_rounds disk_moves nmlen imlen |
106 | 848b65c9 | Iustin Pop | cmd_strs oneline min_score mg_limit min_gain evac_mode = |
107 | f25e5aac | Iustin Pop | let Cluster.Table ini_nl ini_il _ _ = ini_tbl |
108 | 5ad86777 | Iustin Pop | allowed_next = Cluster.doNextBalance ini_tbl max_rounds min_score |
109 | 5ad86777 | Iustin Pop | m_fin_tbl = if allowed_next |
110 | 2e28ac32 | Iustin Pop | then Cluster.tryBalance ini_tbl disk_moves evac_mode |
111 | 848b65c9 | Iustin Pop | mg_limit min_gain |
112 | 5ad86777 | Iustin Pop | else Nothing |
113 | 6dc960bc | Iustin Pop | in |
114 | f25e5aac | Iustin Pop | case m_fin_tbl of |
115 | f25e5aac | Iustin Pop | Just fin_tbl -> |
116 | f25e5aac | Iustin Pop | do |
117 | f25e5aac | Iustin Pop | let |
118 | f25e5aac | Iustin Pop | (Cluster.Table _ _ _ fin_plc) = fin_tbl |
119 | f25e5aac | Iustin Pop | fin_plc_len = length fin_plc |
120 | 924f9c16 | Iustin Pop | cur_plc@(idx, _, _, move, _) = head fin_plc |
121 | f25e5aac | Iustin Pop | (sol_line, cmds) = Cluster.printSolutionLine ini_nl ini_il |
122 | 0e8ae201 | Iustin Pop | nmlen imlen cur_plc fin_plc_len |
123 | 0e8ae201 | Iustin Pop | afn = Cluster.involvedNodes ini_il cur_plc |
124 | 924f9c16 | Iustin Pop | upd_cmd_strs = (afn, idx, move, cmds):cmd_strs |
125 | f25e5aac | Iustin Pop | unless oneline $ do |
126 | f25e5aac | Iustin Pop | putStrLn sol_line |
127 | f25e5aac | Iustin Pop | hFlush stdout |
128 | f25e5aac | Iustin Pop | iterateDepth fin_tbl max_rounds disk_moves |
129 | f25e5aac | Iustin Pop | nmlen imlen upd_cmd_strs oneline min_score |
130 | 848b65c9 | Iustin Pop | mg_limit min_gain evac_mode |
131 | f25e5aac | Iustin Pop | Nothing -> return (ini_tbl, cmd_strs) |
132 | 6dc960bc | Iustin Pop | |
133 | ba6c6006 | Iustin Pop | -- | Formats the solution for the oneline display |
134 | ba6c6006 | Iustin Pop | formatOneline :: Double -> Int -> Double -> String |
135 | ba6c6006 | Iustin Pop | formatOneline ini_cv plc_len fin_cv = |
136 | ba6c6006 | Iustin Pop | printf "%.8f %d %.8f %8.3f" ini_cv plc_len fin_cv |
137 | 9f6dcdea | Iustin Pop | (if fin_cv == 0 then 1 else ini_cv / fin_cv) |
138 | ba6c6006 | Iustin Pop | |
139 | b2245847 | Iustin Pop | -- | Polls a set of jobs at a fixed interval until all are finished |
140 | b2245847 | Iustin Pop | -- one way or another |
141 | b2245847 | Iustin Pop | waitForJobs :: L.Client -> [String] -> IO (Result [JobStatus]) |
142 | b2245847 | Iustin Pop | waitForJobs client jids = do |
143 | b2245847 | Iustin Pop | sts <- L.queryJobsStatus client jids |
144 | b2245847 | Iustin Pop | case sts of |
145 | b2245847 | Iustin Pop | Bad x -> return $ Bad x |
146 | 7e98f782 | Iustin Pop | Ok s -> if any (<= JOB_STATUS_RUNNING) s |
147 | b2245847 | Iustin Pop | then do |
148 | b2245847 | Iustin Pop | -- TODO: replace hardcoded value with a better thing |
149 | b2245847 | Iustin Pop | threadDelay (1000000 * 15) |
150 | b2245847 | Iustin Pop | waitForJobs client jids |
151 | b2245847 | Iustin Pop | else return $ Ok s |
152 | b2245847 | Iustin Pop | |
153 | b2245847 | Iustin Pop | -- | Check that a set of job statuses is all success |
154 | b2245847 | Iustin Pop | checkJobsStatus :: [JobStatus] -> Bool |
155 | 7e98f782 | Iustin Pop | checkJobsStatus = all (== JOB_STATUS_SUCCESS) |
156 | b2245847 | Iustin Pop | |
157 | 23448f82 | Iustin Pop | -- | Wrapper over execJobSet checking for early termination |
158 | 23448f82 | Iustin Pop | execWrapper :: String -> Node.List |
159 | 23448f82 | Iustin Pop | -> Instance.List -> IORef Int -> [JobSet] -> IO Bool |
160 | 23448f82 | Iustin Pop | execWrapper _ _ _ _ [] = return True |
161 | 23448f82 | Iustin Pop | execWrapper master nl il cref alljss = do |
162 | 23448f82 | Iustin Pop | cancel <- readIORef cref |
163 | 23448f82 | Iustin Pop | (if cancel > 0 |
164 | 23448f82 | Iustin Pop | then do |
165 | 23448f82 | Iustin Pop | hPrintf stderr "Exiting early due to user request, %d\ |
166 | 23448f82 | Iustin Pop | \ jobset(s) remaining." (length alljss)::IO () |
167 | 23448f82 | Iustin Pop | return False |
168 | 23448f82 | Iustin Pop | else execJobSet master nl il cref alljss) |
169 | 23448f82 | Iustin Pop | |
170 | b2245847 | Iustin Pop | -- | Execute an entire jobset |
171 | 3e4480e0 | Iustin Pop | execJobSet :: String -> Node.List |
172 | 23448f82 | Iustin Pop | -> Instance.List -> IORef Int -> [JobSet] -> IO Bool |
173 | 23448f82 | Iustin Pop | execJobSet _ _ _ _ [] = return True |
174 | 23448f82 | Iustin Pop | execJobSet master nl il cref (js:jss) = do |
175 | b2245847 | Iustin Pop | -- map from jobset (htools list of positions) to [[opcodes]] |
176 | b2245847 | Iustin Pop | let jobs = map (\(_, idx, move, _) -> |
177 | 3e4480e0 | Iustin Pop | Cluster.iMoveToJob nl il idx move) js |
178 | b2245847 | Iustin Pop | let descr = map (\(_, idx, _, _) -> Container.nameOf il idx) js |
179 | b2245847 | Iustin Pop | putStrLn $ "Executing jobset for instances " ++ commaJoin descr |
180 | b2245847 | Iustin Pop | jrs <- bracket (L.getClient master) L.closeClient |
181 | b2245847 | Iustin Pop | (\client -> do |
182 | 683b1ca7 | Iustin Pop | jids <- L.submitManyJobs client jobs |
183 | b2245847 | Iustin Pop | case jids of |
184 | b2245847 | Iustin Pop | Bad x -> return $ Bad x |
185 | b2245847 | Iustin Pop | Ok x -> do |
186 | b2245847 | Iustin Pop | putStrLn $ "Got job IDs " ++ commaJoin x |
187 | b2245847 | Iustin Pop | waitForJobs client x |
188 | b2245847 | Iustin Pop | ) |
189 | b2245847 | Iustin Pop | (case jrs of |
190 | b2245847 | Iustin Pop | Bad x -> do |
191 | b2245847 | Iustin Pop | hPutStrLn stderr $ "Cannot compute job status, aborting: " ++ show x |
192 | 23448f82 | Iustin Pop | return False |
193 | b2245847 | Iustin Pop | Ok x -> if checkJobsStatus x |
194 | 23448f82 | Iustin Pop | then execWrapper master nl il cref jss |
195 | b2245847 | Iustin Pop | else do |
196 | b2245847 | Iustin Pop | hPutStrLn stderr $ "Not all jobs completed successfully: " ++ |
197 | b2245847 | Iustin Pop | show x |
198 | 23448f82 | Iustin Pop | hPutStrLn stderr "Aborting." |
199 | 23448f82 | Iustin Pop | return False) |
200 | b2245847 | Iustin Pop | |
201 | 543e859d | Iustin Pop | -- | Signal handler for graceful termination |
202 | 543e859d | Iustin Pop | hangleSigInt :: IORef Int -> IO () |
203 | 543e859d | Iustin Pop | hangleSigInt cref = do |
204 | 543e859d | Iustin Pop | writeIORef cref 1 |
205 | 543e859d | Iustin Pop | putStrLn ("Cancel request registered, will exit at" ++ |
206 | 543e859d | Iustin Pop | " the end of the current job set...") |
207 | 543e859d | Iustin Pop | |
208 | 543e859d | Iustin Pop | -- | Signal handler for immediate termination |
209 | 543e859d | Iustin Pop | hangleSigTerm :: IORef Int -> IO () |
210 | 543e859d | Iustin Pop | hangleSigTerm cref = do |
211 | 543e859d | Iustin Pop | -- update the cref to 2, just for consistency |
212 | 543e859d | Iustin Pop | writeIORef cref 2 |
213 | 543e859d | Iustin Pop | putStrLn "Double cancel request, exiting now..." |
214 | 543e859d | Iustin Pop | exitImmediately $ ExitFailure 2 |
215 | 03cb89f0 | Iustin Pop | |
216 | 23448f82 | Iustin Pop | runJobSet :: String -> Node.List -> Instance.List -> [JobSet] -> IO Bool |
217 | 03cb89f0 | Iustin Pop | runJobSet master fin_nl il cmd_jobs = do |
218 | 03cb89f0 | Iustin Pop | cref <- newIORef 0 |
219 | 543e859d | Iustin Pop | mapM_ (\(hnd, sig) -> installHandler sig (Catch (hnd cref)) Nothing) |
220 | 543e859d | Iustin Pop | [(hangleSigTerm, softwareTermination), (hangleSigInt, keyboardSignal)] |
221 | 23448f82 | Iustin Pop | execWrapper master fin_nl il cref cmd_jobs |
222 | 03cb89f0 | Iustin Pop | |
223 | e4f08c46 | Iustin Pop | -- | Main function. |
224 | e4f08c46 | Iustin Pop | main :: IO () |
225 | e4f08c46 | Iustin Pop | main = do |
226 | e4f08c46 | Iustin Pop | cmd_args <- System.getArgs |
227 | 0427285d | Iustin Pop | (opts, args) <- parseOpts cmd_args "hbal" options |
228 | 45f01962 | Iustin Pop | |
229 | 45f01962 | Iustin Pop | unless (null args) $ do |
230 | 45f01962 | Iustin Pop | hPutStrLn stderr "Error: this program doesn't take any arguments." |
231 | 45f01962 | Iustin Pop | exitWith $ ExitFailure 1 |
232 | a30b2f5b | Iustin Pop | |
233 | fae371cc | Iustin Pop | let oneline = optOneline opts |
234 | 7eff5b09 | Iustin Pop | verbose = optVerbose opts |
235 | e98fb766 | Iustin Pop | shownodes = optShowNodes opts |
236 | 33e44f0c | Iustin Pop | showinsts = optShowInsts opts |
237 | fae371cc | Iustin Pop | |
238 | 4188449c | Iustin Pop | ini_cdata@(ClusterData gl fixed_nl ilf ctags) <- loadExternalData opts |
239 | ec18dca9 | Iustin Pop | |
240 | ec18dca9 | Iustin Pop | let offline_names = optOffline opts |
241 | db1bcfe8 | Iustin Pop | all_nodes = Container.elems fixed_nl |
242 | c854092b | Iustin Pop | all_names = concatMap allNames all_nodes |
243 | 5182e970 | Iustin Pop | offline_wrong = filter (`notElem` all_names) offline_names |
244 | db1bcfe8 | Iustin Pop | offline_indices = map Node.idx $ |
245 | f9acea10 | Iustin Pop | filter (\n -> |
246 | f9acea10 | Iustin Pop | Node.name n `elem` offline_names || |
247 | f9acea10 | Iustin Pop | Node.alias n `elem` offline_names) |
248 | db1bcfe8 | Iustin Pop | all_nodes |
249 | 66d67ad4 | Iustin Pop | m_cpu = optMcpu opts |
250 | 66d67ad4 | Iustin Pop | m_dsk = optMdsk opts |
251 | 646aa028 | Iustin Pop | csf = commonSuffix fixed_nl ilf |
252 | ec18dca9 | Iustin Pop | |
253 | 3d7cd10b | Iustin Pop | when (length offline_wrong > 0) $ do |
254 | 2795466b | Iustin Pop | hPrintf stderr "Wrong node name(s) set as offline: %s\n" |
255 | c939b58e | Iustin Pop | (commaJoin offline_wrong) :: IO () |
256 | 3d7cd10b | Iustin Pop | exitWith $ ExitFailure 1 |
257 | 3d7cd10b | Iustin Pop | |
258 | 5182e970 | Iustin Pop | let nm = Container.map (\n -> if Node.idx n `elem` offline_indices |
259 | ec18dca9 | Iustin Pop | then Node.setOffline n True |
260 | a1c6212e | Iustin Pop | else n) fixed_nl |
261 | 646aa028 | Iustin Pop | nlf = Container.map (flip Node.setMdsk m_dsk . flip Node.setMcpu m_cpu) |
262 | 646aa028 | Iustin Pop | nm |
263 | a30b2f5b | Iustin Pop | |
264 | ea017cbc | Iustin Pop | when (not oneline && verbose > 1) $ |
265 | ea017cbc | Iustin Pop | putStrLn $ "Loaded cluster tags: " ++ intercalate "," ctags |
266 | ea017cbc | Iustin Pop | |
267 | 646aa028 | Iustin Pop | when (Container.size ilf == 0) $ do |
268 | 926c35b1 | Iustin Pop | (if oneline then putStrLn $ formatOneline 0 0 0 |
269 | 926c35b1 | Iustin Pop | else printf "Cluster is empty, exiting.\n") |
270 | dcbcdb58 | Iustin Pop | exitWith ExitSuccess |
271 | dcbcdb58 | Iustin Pop | |
272 | 646aa028 | Iustin Pop | let split_insts = Cluster.findSplitInstances nlf ilf |
273 | 646aa028 | Iustin Pop | when (not . null $ split_insts) $ do |
274 | 646aa028 | Iustin Pop | hPutStrLn stderr "Found instances belonging to multiple node groups:" |
275 | 646aa028 | Iustin Pop | mapM_ (\i -> hPutStrLn stderr $ " " ++ Instance.name i) split_insts |
276 | 646aa028 | Iustin Pop | hPutStrLn stderr "Aborting." |
277 | 646aa028 | Iustin Pop | exitWith $ ExitFailure 1 |
278 | 646aa028 | Iustin Pop | |
279 | 646aa028 | Iustin Pop | let ngroups = Cluster.splitCluster nlf ilf |
280 | 646aa028 | Iustin Pop | when (length ngroups > 1 && isNothing (optGroup opts)) $ do |
281 | 646aa028 | Iustin Pop | hPutStrLn stderr "Found multiple node groups:" |
282 | e0c85e08 | Iustin Pop | mapM_ (hPutStrLn stderr . (" " ++) . Group.name . |
283 | d5072e4c | Iustin Pop | flip Container.find gl . fst) ngroups |
284 | 646aa028 | Iustin Pop | hPutStrLn stderr "Aborting." |
285 | 646aa028 | Iustin Pop | exitWith $ ExitFailure 1 |
286 | 646aa028 | Iustin Pop | |
287 | 4188449c | Iustin Pop | maybeSaveData (optSaveCluster opts) "original" "before balancing" ini_cdata |
288 | 4188449c | Iustin Pop | |
289 | 27f96567 | Iustin Pop | unless oneline $ printf "Loaded %d nodes, %d instances\n" |
290 | 646aa028 | Iustin Pop | (Container.size nlf) |
291 | 646aa028 | Iustin Pop | (Container.size ilf) |
292 | 646aa028 | Iustin Pop | |
293 | 10ef6b4e | Iustin Pop | (gname, (nl, il)) <- case optGroup opts of |
294 | 10ef6b4e | Iustin Pop | Nothing -> do |
295 | 10ef6b4e | Iustin Pop | let (gidx, cdata) = head ngroups |
296 | 10ef6b4e | Iustin Pop | grp = Container.find gidx gl |
297 | 10ef6b4e | Iustin Pop | return (Group.name grp, cdata) |
298 | 10ef6b4e | Iustin Pop | Just g -> case Container.findByName gl g of |
299 | 646aa028 | Iustin Pop | Nothing -> do |
300 | 646aa028 | Iustin Pop | hPutStrLn stderr $ "Node group " ++ g ++ |
301 | 646aa028 | Iustin Pop | " not found. Node group list is:" |
302 | 10ef6b4e | Iustin Pop | mapM_ (hPutStrLn stderr . (" " ++) . Group.name ) (Container.elems gl) |
303 | 646aa028 | Iustin Pop | hPutStrLn stderr "Aborting." |
304 | 646aa028 | Iustin Pop | exitWith $ ExitFailure 1 |
305 | 10ef6b4e | Iustin Pop | Just grp -> |
306 | 10ef6b4e | Iustin Pop | case lookup (Group.idx grp) ngroups of |
307 | 10ef6b4e | Iustin Pop | Nothing -> do |
308 | 10ef6b4e | Iustin Pop | -- TODO: while this is unlikely to happen, log here the |
309 | 10ef6b4e | Iustin Pop | -- actual group data to help debugging |
310 | d5072e4c | Iustin Pop | hPutStrLn stderr "Internal failure, missing group idx" |
311 | 10ef6b4e | Iustin Pop | exitWith $ ExitFailure 1 |
312 | 10ef6b4e | Iustin Pop | Just cdata -> return (Group.name grp, cdata) |
313 | 646aa028 | Iustin Pop | |
314 | 646aa028 | Iustin Pop | unless oneline $ printf "Group size %d nodes, %d instances\n" |
315 | e4f08c46 | Iustin Pop | (Container.size nl) |
316 | e4f08c46 | Iustin Pop | (Container.size il) |
317 | a0529a64 | Iustin Pop | |
318 | 10ef6b4e | Iustin Pop | putStrLn $ "Selected node group: " ++ gname |
319 | 646aa028 | Iustin Pop | |
320 | 9f6dcdea | Iustin Pop | when (length csf > 0 && not oneline && verbose > 1) $ |
321 | 9f6dcdea | Iustin Pop | printf "Note: Stripping common suffix of '%s' from names\n" csf |
322 | a0529a64 | Iustin Pop | |
323 | e4f08c46 | Iustin Pop | let (bad_nodes, bad_instances) = Cluster.computeBadItems nl il |
324 | 7eff5b09 | Iustin Pop | unless (oneline || verbose == 0) $ printf |
325 | 27f96567 | Iustin Pop | "Initial check done: %d bad nodes, %d bad instances.\n" |
326 | e4f08c46 | Iustin Pop | (length bad_nodes) (length bad_instances) |
327 | e4f08c46 | Iustin Pop | |
328 | 9f6dcdea | Iustin Pop | when (length bad_nodes > 0) $ |
329 | 289c3835 | Iustin Pop | putStrLn "Cluster is not N+1 happy, continuing but no guarantee \ |
330 | 289c3835 | Iustin Pop | \that the cluster will end N+1 happy." |
331 | e4f08c46 | Iustin Pop | |
332 | 33e44f0c | Iustin Pop | maybePrintInsts showinsts "Initial" (Cluster.printInsts nl il) |
333 | 507fda3f | Iustin Pop | |
334 | 417f6b50 | Iustin Pop | maybePrintNodes shownodes "Initial cluster" (Cluster.printNodes nl) |
335 | e4f08c46 | Iustin Pop | |
336 | e4f08c46 | Iustin Pop | let ini_cv = Cluster.compCV nl |
337 | e4f08c46 | Iustin Pop | ini_tbl = Cluster.Table nl il ini_cv [] |
338 | b0517d61 | Iustin Pop | min_cv = optMinScore opts |
339 | b0517d61 | Iustin Pop | |
340 | b0517d61 | Iustin Pop | when (ini_cv < min_cv) $ do |
341 | b0517d61 | Iustin Pop | (if oneline then |
342 | ba6c6006 | Iustin Pop | putStrLn $ formatOneline ini_cv 0 ini_cv |
343 | b0517d61 | Iustin Pop | else printf "Cluster is already well balanced (initial score %.6g,\n\ |
344 | b0517d61 | Iustin Pop | \minimum score %.6g).\nNothing to do, exiting\n" |
345 | b0517d61 | Iustin Pop | ini_cv min_cv) |
346 | b0517d61 | Iustin Pop | exitWith ExitSuccess |
347 | b0517d61 | Iustin Pop | |
348 | d09b6ed3 | Iustin Pop | unless oneline (if verbose > 2 then |
349 | 7eff5b09 | Iustin Pop | printf "Initial coefficients: overall %.8f, %s\n" |
350 | 7eff5b09 | Iustin Pop | ini_cv (Cluster.printStats nl) |
351 | 7eff5b09 | Iustin Pop | else |
352 | 7eff5b09 | Iustin Pop | printf "Initial score: %.8f\n" ini_cv) |
353 | e4f08c46 | Iustin Pop | |
354 | 27f96567 | Iustin Pop | unless oneline $ putStrLn "Trying to minimize the CV..." |
355 | 14c972c7 | Iustin Pop | let imlen = maximum . map (length . Instance.alias) $ Container.elems il |
356 | 14c972c7 | Iustin Pop | nmlen = maximum . map (length . Node.alias) $ Container.elems nl |
357 | 7dfaafb1 | Iustin Pop | |
358 | 7dfaafb1 | Iustin Pop | (fin_tbl, cmd_strs) <- iterateDepth ini_tbl (optMaxLength opts) |
359 | c0501c69 | Iustin Pop | (optDiskMoves opts) |
360 | 848b65c9 | Iustin Pop | nmlen imlen [] oneline min_cv |
361 | 848b65c9 | Iustin Pop | (optMinGainLim opts) (optMinGain opts) |
362 | 848b65c9 | Iustin Pop | (optEvacMode opts) |
363 | 507fda3f | Iustin Pop | let (Cluster.Table fin_nl fin_il fin_cv fin_plc) = fin_tbl |
364 | e4f08c46 | Iustin Pop | ord_plc = reverse fin_plc |
365 | 9f6dcdea | Iustin Pop | sol_msg = if null fin_plc |
366 | 9f6dcdea | Iustin Pop | then printf "No solution found\n" |
367 | 9f6dcdea | Iustin Pop | else if verbose > 2 |
368 | 9f6dcdea | Iustin Pop | then printf "Final coefficients: overall %.8f, %s\n" |
369 | 9f6dcdea | Iustin Pop | fin_cv (Cluster.printStats fin_nl) |
370 | 9f6dcdea | Iustin Pop | else printf "Cluster score improved from %.8f to %.8f\n" |
371 | 9f6dcdea | Iustin Pop | ini_cv fin_cv |
372 | 9f6dcdea | Iustin Pop | ::String |
373 | e4f08c46 | Iustin Pop | |
374 | 7eff5b09 | Iustin Pop | unless oneline $ putStr sol_msg |
375 | 7eff5b09 | Iustin Pop | |
376 | 7eff5b09 | Iustin Pop | unless (oneline || verbose == 0) $ |
377 | 7eff5b09 | Iustin Pop | printf "Solution length=%d\n" (length ord_plc) |
378 | e4f08c46 | Iustin Pop | |
379 | b2245847 | Iustin Pop | let cmd_jobs = Cluster.splitJobs cmd_strs |
380 | b2245847 | Iustin Pop | cmd_data = Cluster.formatCmds cmd_jobs |
381 | e0eb63f0 | Iustin Pop | |
382 | e0eb63f0 | Iustin Pop | when (isJust $ optShowCmds opts) $ |
383 | e4f08c46 | Iustin Pop | do |
384 | e0eb63f0 | Iustin Pop | let out_path = fromJust $ optShowCmds opts |
385 | e4f08c46 | Iustin Pop | putStrLn "" |
386 | e0eb63f0 | Iustin Pop | (if out_path == "-" then |
387 | e0eb63f0 | Iustin Pop | printf "Commands to run to reach the above solution:\n%s" |
388 | e0eb63f0 | Iustin Pop | (unlines . map (" " ++) . |
389 | 0e8ae201 | Iustin Pop | filter (/= " check") . |
390 | e0eb63f0 | Iustin Pop | lines $ cmd_data) |
391 | e0eb63f0 | Iustin Pop | else do |
392 | 0427285d | Iustin Pop | writeFile out_path (shTemplate ++ cmd_data) |
393 | e0eb63f0 | Iustin Pop | printf "The commands have been written to file '%s'\n" out_path) |
394 | e0eb63f0 | Iustin Pop | |
395 | 4188449c | Iustin Pop | maybeSaveData (optSaveCluster opts) "balanced" "after balancing" |
396 | 4188449c | Iustin Pop | (ClusterData gl fin_nl fin_il ctags) |
397 | b2245847 | Iustin Pop | |
398 | 33e44f0c | Iustin Pop | maybePrintInsts showinsts "Final" (Cluster.printInsts fin_nl fin_il) |
399 | 507fda3f | Iustin Pop | |
400 | 417f6b50 | Iustin Pop | maybePrintNodes shownodes "Final cluster" (Cluster.printNodes fin_nl) |
401 | 417f6b50 | Iustin Pop | |
402 | 417f6b50 | Iustin Pop | when (verbose > 3) $ do |
403 | 1a7eff0e | Iustin Pop | let ini_cs = Cluster.totalResources nl |
404 | 1a7eff0e | Iustin Pop | fin_cs = Cluster.totalResources fin_nl |
405 | 417f6b50 | Iustin Pop | printf "Original: mem=%d disk=%d\n" |
406 | 417f6b50 | Iustin Pop | (Cluster.csFmem ini_cs) (Cluster.csFdsk ini_cs) :: IO () |
407 | 417f6b50 | Iustin Pop | printf "Final: mem=%d disk=%d\n" |
408 | 417f6b50 | Iustin Pop | (Cluster.csFmem fin_cs) (Cluster.csFdsk fin_cs) |
409 | ba6c6006 | Iustin Pop | when oneline $ |
410 | ba6c6006 | Iustin Pop | putStrLn $ formatOneline ini_cv (length ord_plc) fin_cv |
411 | 748654f7 | Iustin Pop | |
412 | 23448f82 | Iustin Pop | eval <- |
413 | 23448f82 | Iustin Pop | if optExecJobs opts && not (null ord_plc) |
414 | 23448f82 | Iustin Pop | then (case optLuxi opts of |
415 | 748654f7 | Iustin Pop | Nothing -> do |
416 | 748654f7 | Iustin Pop | hPutStrLn stderr "Execution of commands possible only on LUXI" |
417 | 23448f82 | Iustin Pop | return False |
418 | 03cb89f0 | Iustin Pop | Just master -> runJobSet master fin_nl il cmd_jobs) |
419 | 23448f82 | Iustin Pop | else return True |
420 | d5072e4c | Iustin Pop | unless eval (exitWith (ExitFailure 1)) |