root / src / Ganeti / HTools / Node.hs @ e817723c
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1 | e4f08c46 | Iustin Pop | {-| Module describing a node. |
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2 | e4f08c46 | Iustin Pop | |
3 | e4f08c46 | Iustin Pop | All updates are functional (copy-based) and return a new node with |
4 | e4f08c46 | Iustin Pop | updated value. |
5 | e4f08c46 | Iustin Pop | -} |
6 | e4f08c46 | Iustin Pop | |
7 | e2fa2baf | Iustin Pop | {- |
8 | e2fa2baf | Iustin Pop | |
9 | 72747d91 | Iustin Pop | Copyright (C) 2009, 2010, 2011, 2012, 2013 Google Inc. |
10 | e2fa2baf | Iustin Pop | |
11 | e2fa2baf | Iustin Pop | This program is free software; you can redistribute it and/or modify |
12 | e2fa2baf | Iustin Pop | it under the terms of the GNU General Public License as published by |
13 | e2fa2baf | Iustin Pop | the Free Software Foundation; either version 2 of the License, or |
14 | e2fa2baf | Iustin Pop | (at your option) any later version. |
15 | e2fa2baf | Iustin Pop | |
16 | e2fa2baf | Iustin Pop | This program is distributed in the hope that it will be useful, but |
17 | e2fa2baf | Iustin Pop | WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | e2fa2baf | Iustin Pop | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
19 | e2fa2baf | Iustin Pop | General Public License for more details. |
20 | e2fa2baf | Iustin Pop | |
21 | e2fa2baf | Iustin Pop | You should have received a copy of the GNU General Public License |
22 | e2fa2baf | Iustin Pop | along with this program; if not, write to the Free Software |
23 | e2fa2baf | Iustin Pop | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
24 | e2fa2baf | Iustin Pop | 02110-1301, USA. |
25 | e2fa2baf | Iustin Pop | |
26 | e2fa2baf | Iustin Pop | -} |
27 | e2fa2baf | Iustin Pop | |
28 | 669d7e3d | Iustin Pop | module Ganeti.HTools.Node |
29 | fd7a7c73 | Iustin Pop | ( Node(..) |
30 | fd7a7c73 | Iustin Pop | , List |
31 | fd7a7c73 | Iustin Pop | -- * Constructor |
32 | fd7a7c73 | Iustin Pop | , create |
33 | fd7a7c73 | Iustin Pop | -- ** Finalization after data loading |
34 | fd7a7c73 | Iustin Pop | , buildPeers |
35 | fd7a7c73 | Iustin Pop | , setIdx |
36 | fd7a7c73 | Iustin Pop | , setAlias |
37 | fd7a7c73 | Iustin Pop | , setOffline |
38 | fd7a7c73 | Iustin Pop | , setXmem |
39 | fd7a7c73 | Iustin Pop | , setFmem |
40 | fd7a7c73 | Iustin Pop | , setPri |
41 | fd7a7c73 | Iustin Pop | , setSec |
42 | 6c332a37 | Klaus Aehlig | , setMaster |
43 | 07ea9bf5 | Klaus Aehlig | , setNodeTags |
44 | fd7a7c73 | Iustin Pop | , setMdsk |
45 | fd7a7c73 | Iustin Pop | , setMcpu |
46 | d6eec019 | Iustin Pop | , setPolicy |
47 | fd7a7c73 | Iustin Pop | -- * Tag maps |
48 | fd7a7c73 | Iustin Pop | , addTags |
49 | fd7a7c73 | Iustin Pop | , delTags |
50 | fd7a7c73 | Iustin Pop | , rejectAddTags |
51 | fd7a7c73 | Iustin Pop | -- * Instance (re)location |
52 | fd7a7c73 | Iustin Pop | , removePri |
53 | fd7a7c73 | Iustin Pop | , removeSec |
54 | fd7a7c73 | Iustin Pop | , addPri |
55 | fd7a7c73 | Iustin Pop | , addPriEx |
56 | fd7a7c73 | Iustin Pop | , addSec |
57 | fd7a7c73 | Iustin Pop | , addSecEx |
58 | fd7a7c73 | Iustin Pop | -- * Stats |
59 | fd7a7c73 | Iustin Pop | , availDisk |
60 | fd7a7c73 | Iustin Pop | , availMem |
61 | fd7a7c73 | Iustin Pop | , availCpu |
62 | fd7a7c73 | Iustin Pop | , iMem |
63 | fd7a7c73 | Iustin Pop | , iDsk |
64 | fd7a7c73 | Iustin Pop | , conflictingPrimaries |
65 | fd7a7c73 | Iustin Pop | -- * Formatting |
66 | fd7a7c73 | Iustin Pop | , defaultFields |
67 | fd7a7c73 | Iustin Pop | , showHeader |
68 | fd7a7c73 | Iustin Pop | , showField |
69 | fd7a7c73 | Iustin Pop | , list |
70 | fd7a7c73 | Iustin Pop | -- * Misc stuff |
71 | fd7a7c73 | Iustin Pop | , AssocList |
72 | fd7a7c73 | Iustin Pop | , AllocElement |
73 | fd7a7c73 | Iustin Pop | , noSecondary |
74 | fd7a7c73 | Iustin Pop | , computeGroups |
75 | dae1f9cb | Guido Trotter | , mkNodeGraph |
76 | 30fded87 | Klaus Aehlig | , mkRebootNodeGraph |
77 | 0cc3d742 | Bernardo Dal Seno | , haveExclStorage |
78 | fd7a7c73 | Iustin Pop | ) where |
79 | e4f08c46 | Iustin Pop | |
80 | 86aa9ba3 | Iustin Pop | import Control.Monad (liftM, liftM2) |
81 | 30fded87 | Klaus Aehlig | import Control.Applicative ((<$>), (<*>)) |
82 | 1e4b5230 | Iustin Pop | import qualified Data.Foldable as Foldable |
83 | 86aa9ba3 | Iustin Pop | import Data.Function (on) |
84 | dae1f9cb | Guido Trotter | import qualified Data.Graph as Graph |
85 | 86aa9ba3 | Iustin Pop | import qualified Data.IntMap as IntMap |
86 | 86aa9ba3 | Iustin Pop | import Data.List hiding (group) |
87 | 86aa9ba3 | Iustin Pop | import qualified Data.Map as Map |
88 | d8bcd0a8 | Iustin Pop | import Data.Ord (comparing) |
89 | e4f08c46 | Iustin Pop | import Text.Printf (printf) |
90 | e4f08c46 | Iustin Pop | |
91 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.Container as Container |
92 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.Instance as Instance |
93 | 12e6776a | Iustin Pop | import qualified Ganeti.HTools.PeerMap as P |
94 | e4f08c46 | Iustin Pop | |
95 | a8038349 | Iustin Pop | import Ganeti.BasicTypes |
96 | 262a08a2 | Iustin Pop | import qualified Ganeti.HTools.Types as T |
97 | 262a08a2 | Iustin Pop | |
98 | 9188aeef | Iustin Pop | -- * Type declarations |
99 | 9188aeef | Iustin Pop | |
100 | 525bfb36 | Iustin Pop | -- | The tag map type. |
101 | 5f0b9579 | Iustin Pop | type TagMap = Map.Map String Int |
102 | 5f0b9579 | Iustin Pop | |
103 | 9188aeef | Iustin Pop | -- | The node type. |
104 | 12e6776a | Iustin Pop | data Node = Node |
105 | fd7a7c73 | Iustin Pop | { name :: String -- ^ The node name |
106 | fd7a7c73 | Iustin Pop | , alias :: String -- ^ The shortened name (for display purposes) |
107 | fd7a7c73 | Iustin Pop | , tMem :: Double -- ^ Total memory (MiB) |
108 | fd7a7c73 | Iustin Pop | , nMem :: Int -- ^ Node memory (MiB) |
109 | fd7a7c73 | Iustin Pop | , fMem :: Int -- ^ Free memory (MiB) |
110 | fd7a7c73 | Iustin Pop | , xMem :: Int -- ^ Unaccounted memory (MiB) |
111 | fd7a7c73 | Iustin Pop | , tDsk :: Double -- ^ Total disk space (MiB) |
112 | fd7a7c73 | Iustin Pop | , fDsk :: Int -- ^ Free disk space (MiB) |
113 | fd7a7c73 | Iustin Pop | , tCpu :: Double -- ^ Total CPU count |
114 | c8c071cb | Bernardo Dal Seno | , nCpu :: Int -- ^ VCPUs used by the node OS |
115 | fd7a7c73 | Iustin Pop | , uCpu :: Int -- ^ Used VCPU count |
116 | 96f9b0a6 | Bernardo Dal Seno | , tSpindles :: Int -- ^ Node spindles (spindle_count node parameter, |
117 | 96f9b0a6 | Bernardo Dal Seno | -- or actual spindles, see note below) |
118 | 96f9b0a6 | Bernardo Dal Seno | , fSpindles :: Int -- ^ Free spindles (see note below) |
119 | fd7a7c73 | Iustin Pop | , pList :: [T.Idx] -- ^ List of primary instance indices |
120 | fd7a7c73 | Iustin Pop | , sList :: [T.Idx] -- ^ List of secondary instance indices |
121 | fd7a7c73 | Iustin Pop | , idx :: T.Ndx -- ^ Internal index for book-keeping |
122 | fd7a7c73 | Iustin Pop | , peers :: P.PeerMap -- ^ Pnode to instance mapping |
123 | fd7a7c73 | Iustin Pop | , failN1 :: Bool -- ^ Whether the node has failed n1 |
124 | fd7a7c73 | Iustin Pop | , rMem :: Int -- ^ Maximum memory needed for failover by |
125 | fd7a7c73 | Iustin Pop | -- primaries of this node |
126 | fd7a7c73 | Iustin Pop | , pMem :: Double -- ^ Percent of free memory |
127 | fd7a7c73 | Iustin Pop | , pDsk :: Double -- ^ Percent of free disk |
128 | fd7a7c73 | Iustin Pop | , pRem :: Double -- ^ Percent of reserved memory |
129 | fd7a7c73 | Iustin Pop | , pCpu :: Double -- ^ Ratio of virtual to physical CPUs |
130 | fd7a7c73 | Iustin Pop | , mDsk :: Double -- ^ Minimum free disk ratio |
131 | fd7a7c73 | Iustin Pop | , loDsk :: Int -- ^ Autocomputed from mDsk low disk |
132 | fd7a7c73 | Iustin Pop | -- threshold |
133 | fd7a7c73 | Iustin Pop | , hiCpu :: Int -- ^ Autocomputed from mCpu high cpu |
134 | fd7a7c73 | Iustin Pop | -- threshold |
135 | 96f9b0a6 | Bernardo Dal Seno | , hiSpindles :: Double -- ^ Limit auto-computed from policy spindle_ratio |
136 | 96f9b0a6 | Bernardo Dal Seno | -- and the node spindle count (see note below) |
137 | 96f9b0a6 | Bernardo Dal Seno | , instSpindles :: Double -- ^ Spindles used by instances (see note below) |
138 | fd7a7c73 | Iustin Pop | , offline :: Bool -- ^ Whether the node should not be used for |
139 | fd7a7c73 | Iustin Pop | -- allocations and skipped from score |
140 | fd7a7c73 | Iustin Pop | -- computations |
141 | 6c332a37 | Klaus Aehlig | , isMaster :: Bool -- ^ Whether the node is the master node |
142 | 07ea9bf5 | Klaus Aehlig | , nTags :: [String] -- ^ The node tags for this node |
143 | fd7a7c73 | Iustin Pop | , utilPool :: T.DynUtil -- ^ Total utilisation capacity |
144 | fd7a7c73 | Iustin Pop | , utilLoad :: T.DynUtil -- ^ Sum of instance utilisation |
145 | 2f907bad | Dato Simรณ | , pTags :: TagMap -- ^ Primary instance exclusion tags and their count |
146 | fd7a7c73 | Iustin Pop | , group :: T.Gdx -- ^ The node's group (index) |
147 | d6eec019 | Iustin Pop | , iPolicy :: T.IPolicy -- ^ The instance policy (of the node's group) |
148 | c324da14 | Bernardo Dal Seno | , exclStorage :: Bool -- ^ Effective value of exclusive_storage |
149 | 139c0683 | Iustin Pop | } deriving (Show, Eq) |
150 | 96f9b0a6 | Bernardo Dal Seno | {- A note on how we handle spindles |
151 | 96f9b0a6 | Bernardo Dal Seno | |
152 | 96f9b0a6 | Bernardo Dal Seno | With exclusive storage spindles is a resource, so we track the number of |
153 | 96f9b0a6 | Bernardo Dal Seno | spindles still available (fSpindles). This is the only reliable way, as some |
154 | 96f9b0a6 | Bernardo Dal Seno | spindles could be used outside of Ganeti. When exclusive storage is off, |
155 | 96f9b0a6 | Bernardo Dal Seno | spindles are a way to represent disk I/O pressure, and hence we track the amount |
156 | 96f9b0a6 | Bernardo Dal Seno | used by the instances. We compare it against 'hiSpindles', computed from the |
157 | 96f9b0a6 | Bernardo Dal Seno | instance policy, to avoid policy violations. In both cases we store the total |
158 | 96f9b0a6 | Bernardo Dal Seno | spindles in 'tSpindles'. |
159 | 96f9b0a6 | Bernardo Dal Seno | -} |
160 | e4f08c46 | Iustin Pop | |
161 | 262a08a2 | Iustin Pop | instance T.Element Node where |
162 | fd7a7c73 | Iustin Pop | nameOf = name |
163 | fd7a7c73 | Iustin Pop | idxOf = idx |
164 | fd7a7c73 | Iustin Pop | setAlias = setAlias |
165 | fd7a7c73 | Iustin Pop | setIdx = setIdx |
166 | fd7a7c73 | Iustin Pop | allNames n = [name n, alias n] |
167 | 262a08a2 | Iustin Pop | |
168 | 9188aeef | Iustin Pop | -- | A simple name for the int, node association list. |
169 | 608efcce | Iustin Pop | type AssocList = [(T.Ndx, Node)] |
170 | 040afc35 | Iustin Pop | |
171 | 9188aeef | Iustin Pop | -- | A simple name for a node map. |
172 | 262a08a2 | Iustin Pop | type List = Container.Container Node |
173 | 262a08a2 | Iustin Pop | |
174 | 1fe81531 | Iustin Pop | -- | A simple name for an allocation element (here just for logistic |
175 | 525bfb36 | Iustin Pop | -- reasons). |
176 | 7d3f4253 | Iustin Pop | type AllocElement = (List, Instance.Instance, [Node], T.Score) |
177 | 1fe81531 | Iustin Pop | |
178 | 9188aeef | Iustin Pop | -- | Constant node index for a non-moveable instance. |
179 | 608efcce | Iustin Pop | noSecondary :: T.Ndx |
180 | 040afc35 | Iustin Pop | noSecondary = -1 |
181 | 040afc35 | Iustin Pop | |
182 | 5f0b9579 | Iustin Pop | -- * Helper functions |
183 | 5f0b9579 | Iustin Pop | |
184 | 525bfb36 | Iustin Pop | -- | Add a tag to a tagmap. |
185 | 5f0b9579 | Iustin Pop | addTag :: TagMap -> String -> TagMap |
186 | 5f0b9579 | Iustin Pop | addTag t s = Map.insertWith (+) s 1 t |
187 | 5f0b9579 | Iustin Pop | |
188 | 525bfb36 | Iustin Pop | -- | Add multiple tags. |
189 | 5f0b9579 | Iustin Pop | addTags :: TagMap -> [String] -> TagMap |
190 | 5f0b9579 | Iustin Pop | addTags = foldl' addTag |
191 | 5f0b9579 | Iustin Pop | |
192 | 525bfb36 | Iustin Pop | -- | Adjust or delete a tag from a tagmap. |
193 | 5f0b9579 | Iustin Pop | delTag :: TagMap -> String -> TagMap |
194 | 5f0b9579 | Iustin Pop | delTag t s = Map.update (\v -> if v > 1 |
195 | fd7a7c73 | Iustin Pop | then Just (v-1) |
196 | fd7a7c73 | Iustin Pop | else Nothing) |
197 | 5f0b9579 | Iustin Pop | s t |
198 | 5f0b9579 | Iustin Pop | |
199 | 525bfb36 | Iustin Pop | -- | Remove multiple tags. |
200 | 5f0b9579 | Iustin Pop | delTags :: TagMap -> [String] -> TagMap |
201 | 5f0b9579 | Iustin Pop | delTags = foldl' delTag |
202 | 5f0b9579 | Iustin Pop | |
203 | 525bfb36 | Iustin Pop | -- | Check if we can add a list of tags to a tagmap. |
204 | 5f0b9579 | Iustin Pop | rejectAddTags :: TagMap -> [String] -> Bool |
205 | 5182e970 | Iustin Pop | rejectAddTags t = any (`Map.member` t) |
206 | 5f0b9579 | Iustin Pop | |
207 | 1e4b5230 | Iustin Pop | -- | Check how many primary instances have conflicting tags. The |
208 | 1e4b5230 | Iustin Pop | -- algorithm to compute this is to sum the count of all tags, then |
209 | 1e4b5230 | Iustin Pop | -- subtract the size of the tag map (since each tag has at least one, |
210 | 1e4b5230 | Iustin Pop | -- non-conflicting instance); this is equivalent to summing the |
211 | 1e4b5230 | Iustin Pop | -- values in the tag map minus one. |
212 | 1e4b5230 | Iustin Pop | conflictingPrimaries :: Node -> Int |
213 | 1e4b5230 | Iustin Pop | conflictingPrimaries (Node { pTags = t }) = Foldable.sum t - Map.size t |
214 | 1e4b5230 | Iustin Pop | |
215 | f87c9f5d | Iustin Pop | -- | Helper function to increment a base value depending on the passed |
216 | f87c9f5d | Iustin Pop | -- boolean argument. |
217 | f87c9f5d | Iustin Pop | incIf :: (Num a) => Bool -> a -> a -> a |
218 | f87c9f5d | Iustin Pop | incIf True base delta = base + delta |
219 | f87c9f5d | Iustin Pop | incIf False base _ = base |
220 | f87c9f5d | Iustin Pop | |
221 | f87c9f5d | Iustin Pop | -- | Helper function to decrement a base value depending on the passed |
222 | f87c9f5d | Iustin Pop | -- boolean argument. |
223 | f87c9f5d | Iustin Pop | decIf :: (Num a) => Bool -> a -> a -> a |
224 | f87c9f5d | Iustin Pop | decIf True base delta = base - delta |
225 | f87c9f5d | Iustin Pop | decIf False base _ = base |
226 | f87c9f5d | Iustin Pop | |
227 | 0cc3d742 | Bernardo Dal Seno | -- | Is exclusive storage enabled on any node? |
228 | 0cc3d742 | Bernardo Dal Seno | haveExclStorage :: List -> Bool |
229 | 0cc3d742 | Bernardo Dal Seno | haveExclStorage nl = |
230 | 0cc3d742 | Bernardo Dal Seno | any exclStorage $ Container.elems nl |
231 | 0cc3d742 | Bernardo Dal Seno | |
232 | 9188aeef | Iustin Pop | -- * Initialization functions |
233 | e4f08c46 | Iustin Pop | |
234 | 9188aeef | Iustin Pop | -- | Create a new node. |
235 | 9188aeef | Iustin Pop | -- |
236 | 9188aeef | Iustin Pop | -- The index and the peers maps are empty, and will be need to be |
237 | 9188aeef | Iustin Pop | -- update later via the 'setIdx' and 'buildPeers' functions. |
238 | c8c071cb | Bernardo Dal Seno | create :: String -> Double -> Int -> Int |
239 | c8c071cb | Bernardo Dal Seno | -> Double -> Int -> Double -> Int -> Bool |
240 | c8c071cb | Bernardo Dal Seno | -> Int -> Int -> T.Gdx -> Bool |
241 | c8c071cb | Bernardo Dal Seno | -> Node |
242 | 2727257a | Iustin Pop | create name_init mem_t_init mem_n_init mem_f_init |
243 | c8c071cb | Bernardo Dal Seno | dsk_t_init dsk_f_init cpu_t_init cpu_n_init offline_init |
244 | c8c071cb | Bernardo Dal Seno | spindles_t_init spindles_f_init group_init excl_stor = |
245 | fd7a7c73 | Iustin Pop | Node { name = name_init |
246 | fd7a7c73 | Iustin Pop | , alias = name_init |
247 | fd7a7c73 | Iustin Pop | , tMem = mem_t_init |
248 | fd7a7c73 | Iustin Pop | , nMem = mem_n_init |
249 | fd7a7c73 | Iustin Pop | , fMem = mem_f_init |
250 | fd7a7c73 | Iustin Pop | , tDsk = dsk_t_init |
251 | fd7a7c73 | Iustin Pop | , fDsk = dsk_f_init |
252 | fd7a7c73 | Iustin Pop | , tCpu = cpu_t_init |
253 | c8c071cb | Bernardo Dal Seno | , nCpu = cpu_n_init |
254 | c8c071cb | Bernardo Dal Seno | , uCpu = cpu_n_init |
255 | 96f9b0a6 | Bernardo Dal Seno | , tSpindles = spindles_t_init |
256 | 96f9b0a6 | Bernardo Dal Seno | , fSpindles = spindles_f_init |
257 | fd7a7c73 | Iustin Pop | , pList = [] |
258 | fd7a7c73 | Iustin Pop | , sList = [] |
259 | fd7a7c73 | Iustin Pop | , failN1 = True |
260 | fd7a7c73 | Iustin Pop | , idx = -1 |
261 | fd7a7c73 | Iustin Pop | , peers = P.empty |
262 | fd7a7c73 | Iustin Pop | , rMem = 0 |
263 | fd7a7c73 | Iustin Pop | , pMem = fromIntegral mem_f_init / mem_t_init |
264 | 825f8cee | Bernardo Dal Seno | , pDsk = if excl_stor |
265 | 825f8cee | Bernardo Dal Seno | then computePDsk spindles_f_init $ fromIntegral spindles_t_init |
266 | 825f8cee | Bernardo Dal Seno | else computePDsk dsk_f_init dsk_t_init |
267 | fd7a7c73 | Iustin Pop | , pRem = 0 |
268 | c8c071cb | Bernardo Dal Seno | , pCpu = fromIntegral cpu_n_init / cpu_t_init |
269 | fd7a7c73 | Iustin Pop | , offline = offline_init |
270 | 6c332a37 | Klaus Aehlig | , isMaster = False |
271 | 07ea9bf5 | Klaus Aehlig | , nTags = [] |
272 | fd7a7c73 | Iustin Pop | , xMem = 0 |
273 | fd7a7c73 | Iustin Pop | , mDsk = T.defReservedDiskRatio |
274 | fd7a7c73 | Iustin Pop | , loDsk = mDskToloDsk T.defReservedDiskRatio dsk_t_init |
275 | 487e1962 | Iustin Pop | , hiCpu = mCpuTohiCpu (T.iPolicyVcpuRatio T.defIPolicy) cpu_t_init |
276 | 8bc34c7b | Iustin Pop | , hiSpindles = computeHiSpindles (T.iPolicySpindleRatio T.defIPolicy) |
277 | 96f9b0a6 | Bernardo Dal Seno | spindles_t_init |
278 | 8bc34c7b | Iustin Pop | , instSpindles = 0 |
279 | fd7a7c73 | Iustin Pop | , utilPool = T.baseUtil |
280 | fd7a7c73 | Iustin Pop | , utilLoad = T.zeroUtil |
281 | fd7a7c73 | Iustin Pop | , pTags = Map.empty |
282 | fd7a7c73 | Iustin Pop | , group = group_init |
283 | d6eec019 | Iustin Pop | , iPolicy = T.defIPolicy |
284 | c324da14 | Bernardo Dal Seno | , exclStorage = excl_stor |
285 | fd7a7c73 | Iustin Pop | } |
286 | e4f08c46 | Iustin Pop | |
287 | 525bfb36 | Iustin Pop | -- | Conversion formula from mDsk\/tDsk to loDsk. |
288 | f4c0b8c5 | Iustin Pop | mDskToloDsk :: Double -> Double -> Int |
289 | 05ff7a00 | Agata Murawska | mDskToloDsk mval = floor . (mval *) |
290 | f4c0b8c5 | Iustin Pop | |
291 | 525bfb36 | Iustin Pop | -- | Conversion formula from mCpu\/tCpu to hiCpu. |
292 | f4c0b8c5 | Iustin Pop | mCpuTohiCpu :: Double -> Double -> Int |
293 | 05ff7a00 | Agata Murawska | mCpuTohiCpu mval = floor . (mval *) |
294 | f4c0b8c5 | Iustin Pop | |
295 | 8bc34c7b | Iustin Pop | -- | Conversiojn formula from spindles and spindle ratio to hiSpindles. |
296 | 8bc34c7b | Iustin Pop | computeHiSpindles :: Double -> Int -> Double |
297 | 8bc34c7b | Iustin Pop | computeHiSpindles spindle_ratio = (spindle_ratio *) . fromIntegral |
298 | 8bc34c7b | Iustin Pop | |
299 | e4f08c46 | Iustin Pop | -- | Changes the index. |
300 | 9188aeef | Iustin Pop | -- |
301 | e4f08c46 | Iustin Pop | -- This is used only during the building of the data structures. |
302 | 608efcce | Iustin Pop | setIdx :: Node -> T.Ndx -> Node |
303 | e4f08c46 | Iustin Pop | setIdx t i = t {idx = i} |
304 | e4f08c46 | Iustin Pop | |
305 | 8bcdde0c | Iustin Pop | -- | Changes the alias. |
306 | 8bcdde0c | Iustin Pop | -- |
307 | 8bcdde0c | Iustin Pop | -- This is used only during the building of the data structures. |
308 | 8bcdde0c | Iustin Pop | setAlias :: Node -> String -> Node |
309 | 8bcdde0c | Iustin Pop | setAlias t s = t { alias = s } |
310 | 497e30a1 | Iustin Pop | |
311 | 9188aeef | Iustin Pop | -- | Sets the offline attribute. |
312 | c2c1ef0c | Iustin Pop | setOffline :: Node -> Bool -> Node |
313 | c2c1ef0c | Iustin Pop | setOffline t val = t { offline = val } |
314 | c2c1ef0c | Iustin Pop | |
315 | 6c332a37 | Klaus Aehlig | -- | Sets the master attribute |
316 | 6c332a37 | Klaus Aehlig | setMaster :: Node -> Bool -> Node |
317 | 6c332a37 | Klaus Aehlig | setMaster t val = t { isMaster = val } |
318 | 6c332a37 | Klaus Aehlig | |
319 | 07ea9bf5 | Klaus Aehlig | -- | Sets the node tags attribute |
320 | 07ea9bf5 | Klaus Aehlig | setNodeTags :: Node -> [String] -> Node |
321 | 07ea9bf5 | Klaus Aehlig | setNodeTags t val = t { nTags = val } |
322 | 07ea9bf5 | Klaus Aehlig | |
323 | 9188aeef | Iustin Pop | -- | Sets the unnaccounted memory. |
324 | 8c5b0a0d | Iustin Pop | setXmem :: Node -> Int -> Node |
325 | 2060348b | Iustin Pop | setXmem t val = t { xMem = val } |
326 | 8c5b0a0d | Iustin Pop | |
327 | 525bfb36 | Iustin Pop | -- | Sets the max disk usage ratio. |
328 | 844eff86 | Iustin Pop | setMdsk :: Node -> Double -> Node |
329 | f4c0b8c5 | Iustin Pop | setMdsk t val = t { mDsk = val, loDsk = mDskToloDsk val (tDsk t) } |
330 | 844eff86 | Iustin Pop | |
331 | 487e1962 | Iustin Pop | -- | Sets the max cpu usage ratio. This will update the node's |
332 | 487e1962 | Iustin Pop | -- ipolicy, losing sharing (but it should be a seldomly done operation). |
333 | 844eff86 | Iustin Pop | setMcpu :: Node -> Double -> Node |
334 | 487e1962 | Iustin Pop | setMcpu t val = |
335 | 487e1962 | Iustin Pop | let new_ipol = (iPolicy t) { T.iPolicyVcpuRatio = val } |
336 | 487e1962 | Iustin Pop | in t { hiCpu = mCpuTohiCpu val (tCpu t), iPolicy = new_ipol } |
337 | 844eff86 | Iustin Pop | |
338 | d6eec019 | Iustin Pop | -- | Sets the policy. |
339 | d6eec019 | Iustin Pop | setPolicy :: T.IPolicy -> Node -> Node |
340 | 487e1962 | Iustin Pop | setPolicy pol node = |
341 | 487e1962 | Iustin Pop | node { iPolicy = pol |
342 | 8bc34c7b | Iustin Pop | , hiCpu = mCpuTohiCpu (T.iPolicyVcpuRatio pol) (tCpu node) |
343 | 8bc34c7b | Iustin Pop | , hiSpindles = computeHiSpindles (T.iPolicySpindleRatio pol) |
344 | 96f9b0a6 | Bernardo Dal Seno | (tSpindles node) |
345 | 8bc34c7b | Iustin Pop | } |
346 | d6eec019 | Iustin Pop | |
347 | e4f08c46 | Iustin Pop | -- | Computes the maximum reserved memory for peers from a peer map. |
348 | 12e6776a | Iustin Pop | computeMaxRes :: P.PeerMap -> P.Elem |
349 | 12e6776a | Iustin Pop | computeMaxRes = P.maxElem |
350 | e4f08c46 | Iustin Pop | |
351 | e4f08c46 | Iustin Pop | -- | Builds the peer map for a given node. |
352 | 9cf4267a | Iustin Pop | buildPeers :: Node -> Instance.List -> Node |
353 | 9cf4267a | Iustin Pop | buildPeers t il = |
354 | fd7a7c73 | Iustin Pop | let mdata = map |
355 | fd7a7c73 | Iustin Pop | (\i_idx -> let inst = Container.find i_idx il |
356 | 55bd1414 | Iustin Pop | mem = if Instance.usesSecMem inst |
357 | 929b60d8 | Iustin Pop | then Instance.mem inst |
358 | 929b60d8 | Iustin Pop | else 0 |
359 | fd7a7c73 | Iustin Pop | in (Instance.pNode inst, mem)) |
360 | fd7a7c73 | Iustin Pop | (sList t) |
361 | fd7a7c73 | Iustin Pop | pmap = P.accumArray (+) mdata |
362 | fd7a7c73 | Iustin Pop | new_rmem = computeMaxRes pmap |
363 | fd7a7c73 | Iustin Pop | new_failN1 = fMem t <= new_rmem |
364 | fd7a7c73 | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
365 | fd7a7c73 | Iustin Pop | in t {peers=pmap, failN1 = new_failN1, rMem = new_rmem, pRem = new_prem} |
366 | e4f08c46 | Iustin Pop | |
367 | 4c18f468 | Renรฉ Nussbaumer | -- | Calculate the new spindle usage |
368 | 74ff6aed | Bernardo Dal Seno | calcSpindleUse :: |
369 | 74ff6aed | Bernardo Dal Seno | Bool -- Action: True = adding instance, False = removing it |
370 | 74ff6aed | Bernardo Dal Seno | -> Node -> Instance.Instance -> Double |
371 | 74ff6aed | Bernardo Dal Seno | calcSpindleUse _ (Node {exclStorage = True}) _ = 0.0 |
372 | 74ff6aed | Bernardo Dal Seno | calcSpindleUse act n@(Node {exclStorage = False}) i = |
373 | 74ff6aed | Bernardo Dal Seno | f (Instance.usesLocalStorage i) (instSpindles n) |
374 | 74ff6aed | Bernardo Dal Seno | (fromIntegral $ Instance.spindleUse i) |
375 | 74ff6aed | Bernardo Dal Seno | where |
376 | 74ff6aed | Bernardo Dal Seno | f :: Bool -> Double -> Double -> Double -- avoid monomorphism restriction |
377 | 74ff6aed | Bernardo Dal Seno | f = if act then incIf else decIf |
378 | 74ff6aed | Bernardo Dal Seno | |
379 | 74ff6aed | Bernardo Dal Seno | -- | Calculate the new number of free spindles |
380 | 74ff6aed | Bernardo Dal Seno | calcNewFreeSpindles :: |
381 | 74ff6aed | Bernardo Dal Seno | Bool -- Action: True = adding instance, False = removing |
382 | 74ff6aed | Bernardo Dal Seno | -> Node -> Instance.Instance -> Int |
383 | 74ff6aed | Bernardo Dal Seno | calcNewFreeSpindles _ (Node {exclStorage = False}) _ = 0 |
384 | 74ff6aed | Bernardo Dal Seno | calcNewFreeSpindles act n@(Node {exclStorage = True}) i = |
385 | 74ff6aed | Bernardo Dal Seno | case Instance.getTotalSpindles i of |
386 | 74ff6aed | Bernardo Dal Seno | Nothing -> if act |
387 | 74ff6aed | Bernardo Dal Seno | then -1 -- Force a spindle error, so the instance don't go here |
388 | 74ff6aed | Bernardo Dal Seno | else fSpindles n -- No change, as we aren't sure |
389 | 74ff6aed | Bernardo Dal Seno | Just s -> (if act then (-) else (+)) (fSpindles n) s |
390 | 4c18f468 | Renรฉ Nussbaumer | |
391 | a488a217 | Iustin Pop | -- | Assigns an instance to a node as primary and update the used VCPU |
392 | 5f0b9579 | Iustin Pop | -- count, utilisation data and tags map. |
393 | a488a217 | Iustin Pop | setPri :: Node -> Instance.Instance -> Node |
394 | aa8d2e71 | Iustin Pop | setPri t inst = t { pList = Instance.idx inst:pList t |
395 | a488a217 | Iustin Pop | , uCpu = new_count |
396 | aa8d2e71 | Iustin Pop | , pCpu = fromIntegral new_count / tCpu t |
397 | aa8d2e71 | Iustin Pop | , utilLoad = utilLoad t `T.addUtil` Instance.util inst |
398 | 2f907bad | Dato Simรณ | , pTags = addTags (pTags t) (Instance.exclTags inst) |
399 | 74ff6aed | Bernardo Dal Seno | , instSpindles = calcSpindleUse True t inst |
400 | aa8d2e71 | Iustin Pop | } |
401 | 55bd1414 | Iustin Pop | where new_count = Instance.applyIfOnline inst (+ Instance.vcpus inst) |
402 | 55bd1414 | Iustin Pop | (uCpu t ) |
403 | 9188aeef | Iustin Pop | |
404 | 74ff6aed | Bernardo Dal Seno | -- | Assigns an instance to a node as secondary and updates disk utilisation. |
405 | a488a217 | Iustin Pop | setSec :: Node -> Instance.Instance -> Node |
406 | aa8d2e71 | Iustin Pop | setSec t inst = t { sList = Instance.idx inst:sList t |
407 | aa8d2e71 | Iustin Pop | , utilLoad = old_load { T.dskWeight = T.dskWeight old_load + |
408 | aa8d2e71 | Iustin Pop | T.dskWeight (Instance.util inst) } |
409 | 74ff6aed | Bernardo Dal Seno | , instSpindles = calcSpindleUse True t inst |
410 | aa8d2e71 | Iustin Pop | } |
411 | fd7a7c73 | Iustin Pop | where old_load = utilLoad t |
412 | 1a82215d | Iustin Pop | |
413 | b7743258 | Iustin Pop | -- | Computes the new 'pDsk' value, handling nodes without local disk |
414 | 825f8cee | Bernardo Dal Seno | -- storage (we consider all their disk unused). |
415 | b7743258 | Iustin Pop | computePDsk :: Int -> Double -> Double |
416 | b7743258 | Iustin Pop | computePDsk _ 0 = 1 |
417 | 825f8cee | Bernardo Dal Seno | computePDsk free total = fromIntegral free / total |
418 | 825f8cee | Bernardo Dal Seno | |
419 | 825f8cee | Bernardo Dal Seno | -- | Computes the new 'pDsk' value, handling the exclusive storage state. |
420 | 825f8cee | Bernardo Dal Seno | computeNewPDsk :: Node -> Int -> Int -> Double |
421 | 825f8cee | Bernardo Dal Seno | computeNewPDsk node new_free_sp new_free_dsk = |
422 | 825f8cee | Bernardo Dal Seno | if exclStorage node |
423 | 825f8cee | Bernardo Dal Seno | then computePDsk new_free_sp . fromIntegral $ tSpindles node |
424 | 825f8cee | Bernardo Dal Seno | else computePDsk new_free_dsk $ tDsk node |
425 | b7743258 | Iustin Pop | |
426 | 9188aeef | Iustin Pop | -- * Update functions |
427 | 9188aeef | Iustin Pop | |
428 | 9188aeef | Iustin Pop | -- | Sets the free memory. |
429 | 9188aeef | Iustin Pop | setFmem :: Node -> Int -> Node |
430 | 9188aeef | Iustin Pop | setFmem t new_mem = |
431 | 77ffd663 | Helga Velroyen | let new_n1 = new_mem < rMem t |
432 | fd7a7c73 | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
433 | fd7a7c73 | Iustin Pop | in t { fMem = new_mem, failN1 = new_n1, pMem = new_mp } |
434 | 9188aeef | Iustin Pop | |
435 | e4f08c46 | Iustin Pop | -- | Removes a primary instance. |
436 | e4f08c46 | Iustin Pop | removePri :: Node -> Instance.Instance -> Node |
437 | e4f08c46 | Iustin Pop | removePri t inst = |
438 | fd7a7c73 | Iustin Pop | let iname = Instance.idx inst |
439 | 7959cbb9 | Iustin Pop | i_online = Instance.notOffline inst |
440 | f87c9f5d | Iustin Pop | uses_disk = Instance.usesLocalStorage inst |
441 | fd7a7c73 | Iustin Pop | new_plist = delete iname (pList t) |
442 | f87c9f5d | Iustin Pop | new_mem = incIf i_online (fMem t) (Instance.mem inst) |
443 | f87c9f5d | Iustin Pop | new_dsk = incIf uses_disk (fDsk t) (Instance.dsk inst) |
444 | 74ff6aed | Bernardo Dal Seno | new_free_sp = calcNewFreeSpindles False t inst |
445 | 74ff6aed | Bernardo Dal Seno | new_inst_sp = calcSpindleUse False t inst |
446 | fd7a7c73 | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
447 | 825f8cee | Bernardo Dal Seno | new_dp = computeNewPDsk t new_free_sp new_dsk |
448 | fd7a7c73 | Iustin Pop | new_failn1 = new_mem <= rMem t |
449 | f87c9f5d | Iustin Pop | new_ucpu = decIf i_online (uCpu t) (Instance.vcpus inst) |
450 | fd7a7c73 | Iustin Pop | new_rcpu = fromIntegral new_ucpu / tCpu t |
451 | fd7a7c73 | Iustin Pop | new_load = utilLoad t `T.subUtil` Instance.util inst |
452 | fd7a7c73 | Iustin Pop | in t { pList = new_plist, fMem = new_mem, fDsk = new_dsk |
453 | fd7a7c73 | Iustin Pop | , failN1 = new_failn1, pMem = new_mp, pDsk = new_dp |
454 | fd7a7c73 | Iustin Pop | , uCpu = new_ucpu, pCpu = new_rcpu, utilLoad = new_load |
455 | 2f907bad | Dato Simรณ | , pTags = delTags (pTags t) (Instance.exclTags inst) |
456 | 74ff6aed | Bernardo Dal Seno | , instSpindles = new_inst_sp, fSpindles = new_free_sp |
457 | 82f19570 | Iustin Pop | } |
458 | e4f08c46 | Iustin Pop | |
459 | e4f08c46 | Iustin Pop | -- | Removes a secondary instance. |
460 | e4f08c46 | Iustin Pop | removeSec :: Node -> Instance.Instance -> Node |
461 | e4f08c46 | Iustin Pop | removeSec t inst = |
462 | fd7a7c73 | Iustin Pop | let iname = Instance.idx inst |
463 | f87c9f5d | Iustin Pop | uses_disk = Instance.usesLocalStorage inst |
464 | fd7a7c73 | Iustin Pop | cur_dsk = fDsk t |
465 | fd7a7c73 | Iustin Pop | pnode = Instance.pNode inst |
466 | fd7a7c73 | Iustin Pop | new_slist = delete iname (sList t) |
467 | f87c9f5d | Iustin Pop | new_dsk = incIf uses_disk cur_dsk (Instance.dsk inst) |
468 | 74ff6aed | Bernardo Dal Seno | new_free_sp = calcNewFreeSpindles False t inst |
469 | 74ff6aed | Bernardo Dal Seno | new_inst_sp = calcSpindleUse False t inst |
470 | fd7a7c73 | Iustin Pop | old_peers = peers t |
471 | fd7a7c73 | Iustin Pop | old_peem = P.find pnode old_peers |
472 | f87c9f5d | Iustin Pop | new_peem = decIf (Instance.usesSecMem inst) old_peem (Instance.mem inst) |
473 | fd7a7c73 | Iustin Pop | new_peers = if new_peem > 0 |
474 | 124b7cd7 | Iustin Pop | then P.add pnode new_peem old_peers |
475 | 124b7cd7 | Iustin Pop | else P.remove pnode old_peers |
476 | fd7a7c73 | Iustin Pop | old_rmem = rMem t |
477 | fd7a7c73 | Iustin Pop | new_rmem = if old_peem < old_rmem |
478 | bbd8efd2 | Iustin Pop | then old_rmem |
479 | bbd8efd2 | Iustin Pop | else computeMaxRes new_peers |
480 | fd7a7c73 | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
481 | fd7a7c73 | Iustin Pop | new_failn1 = fMem t <= new_rmem |
482 | 825f8cee | Bernardo Dal Seno | new_dp = computeNewPDsk t new_free_sp new_dsk |
483 | fd7a7c73 | Iustin Pop | old_load = utilLoad t |
484 | fd7a7c73 | Iustin Pop | new_load = old_load { T.dskWeight = T.dskWeight old_load - |
485 | fd7a7c73 | Iustin Pop | T.dskWeight (Instance.util inst) } |
486 | fd7a7c73 | Iustin Pop | in t { sList = new_slist, fDsk = new_dsk, peers = new_peers |
487 | fd7a7c73 | Iustin Pop | , failN1 = new_failn1, rMem = new_rmem, pDsk = new_dp |
488 | 82f19570 | Iustin Pop | , pRem = new_prem, utilLoad = new_load |
489 | 74ff6aed | Bernardo Dal Seno | , instSpindles = new_inst_sp, fSpindles = new_free_sp |
490 | 82f19570 | Iustin Pop | } |
491 | e4f08c46 | Iustin Pop | |
492 | 3e3c9393 | Iustin Pop | -- | Adds a primary instance (basic version). |
493 | f2280553 | Iustin Pop | addPri :: Node -> Instance.Instance -> T.OpResult Node |
494 | 3e3c9393 | Iustin Pop | addPri = addPriEx False |
495 | 3e3c9393 | Iustin Pop | |
496 | 3e3c9393 | Iustin Pop | -- | Adds a primary instance (extended version). |
497 | 3e3c9393 | Iustin Pop | addPriEx :: Bool -- ^ Whether to override the N+1 and |
498 | 3e3c9393 | Iustin Pop | -- other /soft/ checks, useful if we |
499 | 3e3c9393 | Iustin Pop | -- come from a worse status |
500 | 3e3c9393 | Iustin Pop | -- (e.g. offline) |
501 | 3e3c9393 | Iustin Pop | -> Node -- ^ The target node |
502 | 3e3c9393 | Iustin Pop | -> Instance.Instance -- ^ The instance to add |
503 | 3e3c9393 | Iustin Pop | -> T.OpResult Node -- ^ The result of the operation, |
504 | 3e3c9393 | Iustin Pop | -- either the new version of the node |
505 | 3e3c9393 | Iustin Pop | -- or a failure mode |
506 | 3e3c9393 | Iustin Pop | addPriEx force t inst = |
507 | fd7a7c73 | Iustin Pop | let iname = Instance.idx inst |
508 | 7959cbb9 | Iustin Pop | i_online = Instance.notOffline inst |
509 | fd7a7c73 | Iustin Pop | uses_disk = Instance.usesLocalStorage inst |
510 | fd7a7c73 | Iustin Pop | cur_dsk = fDsk t |
511 | f87c9f5d | Iustin Pop | new_mem = decIf i_online (fMem t) (Instance.mem inst) |
512 | f87c9f5d | Iustin Pop | new_dsk = decIf uses_disk cur_dsk (Instance.dsk inst) |
513 | 74ff6aed | Bernardo Dal Seno | new_free_sp = calcNewFreeSpindles True t inst |
514 | 74ff6aed | Bernardo Dal Seno | new_inst_sp = calcSpindleUse True t inst |
515 | fd7a7c73 | Iustin Pop | new_failn1 = new_mem <= rMem t |
516 | f87c9f5d | Iustin Pop | new_ucpu = incIf i_online (uCpu t) (Instance.vcpus inst) |
517 | fd7a7c73 | Iustin Pop | new_pcpu = fromIntegral new_ucpu / tCpu t |
518 | 825f8cee | Bernardo Dal Seno | new_dp = computeNewPDsk t new_free_sp new_dsk |
519 | 487e1962 | Iustin Pop | l_cpu = T.iPolicyVcpuRatio $ iPolicy t |
520 | fd7a7c73 | Iustin Pop | new_load = utilLoad t `T.addUtil` Instance.util inst |
521 | 2f907bad | Dato Simรณ | inst_tags = Instance.exclTags inst |
522 | fd7a7c73 | Iustin Pop | old_tags = pTags t |
523 | fd7a7c73 | Iustin Pop | strict = not force |
524 | fd7a7c73 | Iustin Pop | in case () of |
525 | a8038349 | Iustin Pop | _ | new_mem <= 0 -> Bad T.FailMem |
526 | a8038349 | Iustin Pop | | uses_disk && new_dsk <= 0 -> Bad T.FailDisk |
527 | 825f8cee | Bernardo Dal Seno | | uses_disk && new_dsk < loDsk t && strict -> Bad T.FailDisk |
528 | 74ff6aed | Bernardo Dal Seno | | uses_disk && exclStorage t && new_free_sp < 0 -> Bad T.FailSpindles |
529 | 74ff6aed | Bernardo Dal Seno | | uses_disk && new_inst_sp > hiSpindles t && strict -> Bad T.FailDisk |
530 | a8038349 | Iustin Pop | | new_failn1 && not (failN1 t) && strict -> Bad T.FailMem |
531 | a8038349 | Iustin Pop | | l_cpu >= 0 && l_cpu < new_pcpu && strict -> Bad T.FailCPU |
532 | a8038349 | Iustin Pop | | rejectAddTags old_tags inst_tags -> Bad T.FailTags |
533 | fd7a7c73 | Iustin Pop | | otherwise -> |
534 | fd7a7c73 | Iustin Pop | let new_plist = iname:pList t |
535 | fd7a7c73 | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
536 | fd7a7c73 | Iustin Pop | r = t { pList = new_plist, fMem = new_mem, fDsk = new_dsk |
537 | fd7a7c73 | Iustin Pop | , failN1 = new_failn1, pMem = new_mp, pDsk = new_dp |
538 | fd7a7c73 | Iustin Pop | , uCpu = new_ucpu, pCpu = new_pcpu |
539 | fd7a7c73 | Iustin Pop | , utilLoad = new_load |
540 | 82f19570 | Iustin Pop | , pTags = addTags old_tags inst_tags |
541 | 74ff6aed | Bernardo Dal Seno | , instSpindles = new_inst_sp |
542 | 74ff6aed | Bernardo Dal Seno | , fSpindles = new_free_sp |
543 | 82f19570 | Iustin Pop | } |
544 | a8038349 | Iustin Pop | in Ok r |
545 | e4f08c46 | Iustin Pop | |
546 | 3e3c9393 | Iustin Pop | -- | Adds a secondary instance (basic version). |
547 | f2280553 | Iustin Pop | addSec :: Node -> Instance.Instance -> T.Ndx -> T.OpResult Node |
548 | 3e3c9393 | Iustin Pop | addSec = addSecEx False |
549 | 3e3c9393 | Iustin Pop | |
550 | 3e3c9393 | Iustin Pop | -- | Adds a secondary instance (extended version). |
551 | 3e3c9393 | Iustin Pop | addSecEx :: Bool -> Node -> Instance.Instance -> T.Ndx -> T.OpResult Node |
552 | 3e3c9393 | Iustin Pop | addSecEx force t inst pdx = |
553 | fd7a7c73 | Iustin Pop | let iname = Instance.idx inst |
554 | fd7a7c73 | Iustin Pop | old_peers = peers t |
555 | fd7a7c73 | Iustin Pop | old_mem = fMem t |
556 | fd7a7c73 | Iustin Pop | new_dsk = fDsk t - Instance.dsk inst |
557 | 74ff6aed | Bernardo Dal Seno | new_free_sp = calcNewFreeSpindles True t inst |
558 | 74ff6aed | Bernardo Dal Seno | new_inst_sp = calcSpindleUse True t inst |
559 | 55bd1414 | Iustin Pop | secondary_needed_mem = if Instance.usesSecMem inst |
560 | 929b60d8 | Iustin Pop | then Instance.mem inst |
561 | 929b60d8 | Iustin Pop | else 0 |
562 | fd7a7c73 | Iustin Pop | new_peem = P.find pdx old_peers + secondary_needed_mem |
563 | fd7a7c73 | Iustin Pop | new_peers = P.add pdx new_peem old_peers |
564 | fd7a7c73 | Iustin Pop | new_rmem = max (rMem t) new_peem |
565 | fd7a7c73 | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
566 | fd7a7c73 | Iustin Pop | new_failn1 = old_mem <= new_rmem |
567 | 825f8cee | Bernardo Dal Seno | new_dp = computeNewPDsk t new_free_sp new_dsk |
568 | fd7a7c73 | Iustin Pop | old_load = utilLoad t |
569 | fd7a7c73 | Iustin Pop | new_load = old_load { T.dskWeight = T.dskWeight old_load + |
570 | fd7a7c73 | Iustin Pop | T.dskWeight (Instance.util inst) } |
571 | fd7a7c73 | Iustin Pop | strict = not force |
572 | fd7a7c73 | Iustin Pop | in case () of |
573 | a8038349 | Iustin Pop | _ | not (Instance.hasSecondary inst) -> Bad T.FailDisk |
574 | a8038349 | Iustin Pop | | new_dsk <= 0 -> Bad T.FailDisk |
575 | 825f8cee | Bernardo Dal Seno | | new_dsk < loDsk t && strict -> Bad T.FailDisk |
576 | 74ff6aed | Bernardo Dal Seno | | exclStorage t && new_free_sp < 0 -> Bad T.FailSpindles |
577 | 74ff6aed | Bernardo Dal Seno | | new_inst_sp > hiSpindles t && strict -> Bad T.FailDisk |
578 | a8038349 | Iustin Pop | | secondary_needed_mem >= old_mem && strict -> Bad T.FailMem |
579 | a8038349 | Iustin Pop | | new_failn1 && not (failN1 t) && strict -> Bad T.FailMem |
580 | fd7a7c73 | Iustin Pop | | otherwise -> |
581 | fd7a7c73 | Iustin Pop | let new_slist = iname:sList t |
582 | fd7a7c73 | Iustin Pop | r = t { sList = new_slist, fDsk = new_dsk |
583 | fd7a7c73 | Iustin Pop | , peers = new_peers, failN1 = new_failn1 |
584 | fd7a7c73 | Iustin Pop | , rMem = new_rmem, pDsk = new_dp |
585 | 82f19570 | Iustin Pop | , pRem = new_prem, utilLoad = new_load |
586 | 74ff6aed | Bernardo Dal Seno | , instSpindles = new_inst_sp |
587 | 74ff6aed | Bernardo Dal Seno | , fSpindles = new_free_sp |
588 | 82f19570 | Iustin Pop | } |
589 | a8038349 | Iustin Pop | in Ok r |
590 | e4f08c46 | Iustin Pop | |
591 | fe3d6f02 | Iustin Pop | -- * Stats functions |
592 | fe3d6f02 | Iustin Pop | |
593 | 525bfb36 | Iustin Pop | -- | Computes the amount of available disk on a given node. |
594 | fe3d6f02 | Iustin Pop | availDisk :: Node -> Int |
595 | fe3d6f02 | Iustin Pop | availDisk t = |
596 | fd7a7c73 | Iustin Pop | let _f = fDsk t |
597 | fd7a7c73 | Iustin Pop | _l = loDsk t |
598 | fd7a7c73 | Iustin Pop | in if _f < _l |
599 | f4c0b8c5 | Iustin Pop | then 0 |
600 | f4c0b8c5 | Iustin Pop | else _f - _l |
601 | fe3d6f02 | Iustin Pop | |
602 | 525bfb36 | Iustin Pop | -- | Computes the amount of used disk on a given node. |
603 | 55da339e | Iustin Pop | iDsk :: Node -> Int |
604 | 55da339e | Iustin Pop | iDsk t = truncate (tDsk t) - fDsk t |
605 | 55da339e | Iustin Pop | |
606 | 525bfb36 | Iustin Pop | -- | Computes the amount of available memory on a given node. |
607 | 1e3dccc8 | Iustin Pop | availMem :: Node -> Int |
608 | 1e3dccc8 | Iustin Pop | availMem t = |
609 | fd7a7c73 | Iustin Pop | let _f = fMem t |
610 | fd7a7c73 | Iustin Pop | _l = rMem t |
611 | fd7a7c73 | Iustin Pop | in if _f < _l |
612 | 1e3dccc8 | Iustin Pop | then 0 |
613 | 1e3dccc8 | Iustin Pop | else _f - _l |
614 | 1e3dccc8 | Iustin Pop | |
615 | 525bfb36 | Iustin Pop | -- | Computes the amount of available memory on a given node. |
616 | 1e3dccc8 | Iustin Pop | availCpu :: Node -> Int |
617 | 1e3dccc8 | Iustin Pop | availCpu t = |
618 | fd7a7c73 | Iustin Pop | let _u = uCpu t |
619 | fd7a7c73 | Iustin Pop | _l = hiCpu t |
620 | fd7a7c73 | Iustin Pop | in if _l >= _u |
621 | 1e3dccc8 | Iustin Pop | then _l - _u |
622 | 1e3dccc8 | Iustin Pop | else 0 |
623 | 1e3dccc8 | Iustin Pop | |
624 | 425af248 | Iustin Pop | -- | The memory used by instances on a given node. |
625 | 425af248 | Iustin Pop | iMem :: Node -> Int |
626 | 425af248 | Iustin Pop | iMem t = truncate (tMem t) - nMem t - xMem t - fMem t |
627 | 425af248 | Iustin Pop | |
628 | dae1f9cb | Guido Trotter | -- * Node graph functions |
629 | dae1f9cb | Guido Trotter | -- These functions do the transformations needed so that nodes can be |
630 | dae1f9cb | Guido Trotter | -- represented as a graph connected by the instances that are replicated |
631 | dae1f9cb | Guido Trotter | -- on them. |
632 | dae1f9cb | Guido Trotter | |
633 | dae1f9cb | Guido Trotter | -- * Making of a Graph from a node/instance list |
634 | dae1f9cb | Guido Trotter | |
635 | dae1f9cb | Guido Trotter | -- | Transform an instance into a list of edges on the node graph |
636 | dae1f9cb | Guido Trotter | instanceToEdges :: Instance.Instance -> [Graph.Edge] |
637 | dae1f9cb | Guido Trotter | instanceToEdges i |
638 | dae1f9cb | Guido Trotter | | Instance.hasSecondary i = [(pnode,snode), (snode,pnode)] |
639 | dae1f9cb | Guido Trotter | | otherwise = [] |
640 | dae1f9cb | Guido Trotter | where pnode = Instance.pNode i |
641 | dae1f9cb | Guido Trotter | snode = Instance.sNode i |
642 | dae1f9cb | Guido Trotter | |
643 | dae1f9cb | Guido Trotter | -- | Transform the list of instances into list of destination edges |
644 | dae1f9cb | Guido Trotter | instancesToEdges :: Instance.List -> [Graph.Edge] |
645 | dae1f9cb | Guido Trotter | instancesToEdges = concatMap instanceToEdges . Container.elems |
646 | dae1f9cb | Guido Trotter | |
647 | dae1f9cb | Guido Trotter | -- | Transform the list of nodes into vertices bounds. |
648 | dae1f9cb | Guido Trotter | -- Returns Nothing is the list is empty. |
649 | dae1f9cb | Guido Trotter | nodesToBounds :: List -> Maybe Graph.Bounds |
650 | dae1f9cb | Guido Trotter | nodesToBounds nl = liftM2 (,) nmin nmax |
651 | dae1f9cb | Guido Trotter | where nmin = fmap (fst . fst) (IntMap.minViewWithKey nl) |
652 | dae1f9cb | Guido Trotter | nmax = fmap (fst . fst) (IntMap.maxViewWithKey nl) |
653 | dae1f9cb | Guido Trotter | |
654 | 30fded87 | Klaus Aehlig | -- | The clique of the primary nodes of the instances with a given secondary. |
655 | 30fded87 | Klaus Aehlig | -- Return the full graph of those nodes that are primary node of at least one |
656 | 30fded87 | Klaus Aehlig | -- instance that has the given node as secondary. |
657 | 30fded87 | Klaus Aehlig | nodeToSharedSecondaryEdge :: Instance.List -> Node -> [Graph.Edge] |
658 | 30fded87 | Klaus Aehlig | nodeToSharedSecondaryEdge il n = (,) <$> primaries <*> primaries |
659 | 30fded87 | Klaus Aehlig | where primaries = map (Instance.pNode . flip Container.find il) $ sList n |
660 | 30fded87 | Klaus Aehlig | |
661 | 30fded87 | Klaus Aehlig | |
662 | 30fded87 | Klaus Aehlig | -- | Predicate of an edge having both vertices in a set of nodes. |
663 | 30fded87 | Klaus Aehlig | filterValid :: List -> [Graph.Edge] -> [Graph.Edge] |
664 | 30fded87 | Klaus Aehlig | filterValid nl = filter $ \(x,y) -> IntMap.member x nl && IntMap.member y nl |
665 | 30fded87 | Klaus Aehlig | |
666 | dae1f9cb | Guido Trotter | -- | Transform a Node + Instance list into a NodeGraph type. |
667 | dae1f9cb | Guido Trotter | -- Returns Nothing if the node list is empty. |
668 | dae1f9cb | Guido Trotter | mkNodeGraph :: List -> Instance.List -> Maybe Graph.Graph |
669 | dae1f9cb | Guido Trotter | mkNodeGraph nl il = |
670 | 30fded87 | Klaus Aehlig | liftM (`Graph.buildG` (filterValid nl . instancesToEdges $ il)) |
671 | 318c0a6c | Klaus Aehlig | (nodesToBounds nl) |
672 | 30fded87 | Klaus Aehlig | |
673 | 30fded87 | Klaus Aehlig | -- | Transform a Nodes + Instances into a NodeGraph with all reboot exclusions. |
674 | 30fded87 | Klaus Aehlig | -- This includes edges between nodes that are the primary nodes of instances |
675 | 30fded87 | Klaus Aehlig | -- that have the same secondary node. Nodes not in the node list will not be |
676 | 30fded87 | Klaus Aehlig | -- part of the graph, but they are still considered for the edges arising from |
677 | 30fded87 | Klaus Aehlig | -- two instances having the same secondary node. |
678 | 30fded87 | Klaus Aehlig | -- Return Nothing if the node list is empty. |
679 | 30fded87 | Klaus Aehlig | mkRebootNodeGraph :: List -> List -> Instance.List -> Maybe Graph.Graph |
680 | 30fded87 | Klaus Aehlig | mkRebootNodeGraph allnodes nl il = |
681 | 30fded87 | Klaus Aehlig | liftM (`Graph.buildG` filterValid nl edges) (nodesToBounds nl) |
682 | 318c0a6c | Klaus Aehlig | where |
683 | 30fded87 | Klaus Aehlig | edges = instancesToEdges il `union` |
684 | 30fded87 | Klaus Aehlig | (Container.elems allnodes >>= nodeToSharedSecondaryEdge il) |
685 | dae1f9cb | Guido Trotter | |
686 | 9188aeef | Iustin Pop | -- * Display functions |
687 | 01f6a5d2 | Iustin Pop | |
688 | 525bfb36 | Iustin Pop | -- | Return a field for a given node. |
689 | 525bfb36 | Iustin Pop | showField :: Node -- ^ Node which we're querying |
690 | 525bfb36 | Iustin Pop | -> String -- ^ Field name |
691 | 525bfb36 | Iustin Pop | -> String -- ^ Field value as string |
692 | c5f7412e | Iustin Pop | showField t field = |
693 | fd7a7c73 | Iustin Pop | case field of |
694 | fd7a7c73 | Iustin Pop | "idx" -> printf "%4d" $ idx t |
695 | fd7a7c73 | Iustin Pop | "name" -> alias t |
696 | fd7a7c73 | Iustin Pop | "fqdn" -> name t |
697 | fd7a7c73 | Iustin Pop | "status" -> case () of |
698 | fd7a7c73 | Iustin Pop | _ | offline t -> "-" |
699 | fd7a7c73 | Iustin Pop | | failN1 t -> "*" |
700 | fd7a7c73 | Iustin Pop | | otherwise -> " " |
701 | fd7a7c73 | Iustin Pop | "tmem" -> printf "%5.0f" $ tMem t |
702 | fd7a7c73 | Iustin Pop | "nmem" -> printf "%5d" $ nMem t |
703 | fd7a7c73 | Iustin Pop | "xmem" -> printf "%5d" $ xMem t |
704 | fd7a7c73 | Iustin Pop | "fmem" -> printf "%5d" $ fMem t |
705 | fd7a7c73 | Iustin Pop | "imem" -> printf "%5d" $ iMem t |
706 | fd7a7c73 | Iustin Pop | "rmem" -> printf "%5d" $ rMem t |
707 | fd7a7c73 | Iustin Pop | "amem" -> printf "%5d" $ fMem t - rMem t |
708 | fd7a7c73 | Iustin Pop | "tdsk" -> printf "%5.0f" $ tDsk t / 1024 |
709 | fd7a7c73 | Iustin Pop | "fdsk" -> printf "%5d" $ fDsk t `div` 1024 |
710 | fd7a7c73 | Iustin Pop | "tcpu" -> printf "%4.0f" $ tCpu t |
711 | fd7a7c73 | Iustin Pop | "ucpu" -> printf "%4d" $ uCpu t |
712 | fd7a7c73 | Iustin Pop | "pcnt" -> printf "%3d" $ length (pList t) |
713 | fd7a7c73 | Iustin Pop | "scnt" -> printf "%3d" $ length (sList t) |
714 | fd7a7c73 | Iustin Pop | "plist" -> show $ pList t |
715 | fd7a7c73 | Iustin Pop | "slist" -> show $ sList t |
716 | fd7a7c73 | Iustin Pop | "pfmem" -> printf "%6.4f" $ pMem t |
717 | fd7a7c73 | Iustin Pop | "pfdsk" -> printf "%6.4f" $ pDsk t |
718 | fd7a7c73 | Iustin Pop | "rcpu" -> printf "%5.2f" $ pCpu t |
719 | fd7a7c73 | Iustin Pop | "cload" -> printf "%5.3f" uC |
720 | fd7a7c73 | Iustin Pop | "mload" -> printf "%5.3f" uM |
721 | fd7a7c73 | Iustin Pop | "dload" -> printf "%5.3f" uD |
722 | fd7a7c73 | Iustin Pop | "nload" -> printf "%5.3f" uN |
723 | fd7a7c73 | Iustin Pop | "ptags" -> intercalate "," . map (uncurry (printf "%s=%d")) . |
724 | fd7a7c73 | Iustin Pop | Map.toList $ pTags t |
725 | fd7a7c73 | Iustin Pop | "peermap" -> show $ peers t |
726 | 96f9b0a6 | Bernardo Dal Seno | "spindle_count" -> show $ tSpindles t |
727 | 34ace266 | Iustin Pop | "hi_spindles" -> show $ hiSpindles t |
728 | 34ace266 | Iustin Pop | "inst_spindles" -> show $ instSpindles t |
729 | fd7a7c73 | Iustin Pop | _ -> T.unknownField |
730 | fd7a7c73 | Iustin Pop | where |
731 | fd7a7c73 | Iustin Pop | T.DynUtil { T.cpuWeight = uC, T.memWeight = uM, |
732 | fd7a7c73 | Iustin Pop | T.dskWeight = uD, T.netWeight = uN } = utilLoad t |
733 | c5f7412e | Iustin Pop | |
734 | 525bfb36 | Iustin Pop | -- | Returns the header and numeric propery of a field. |
735 | 76354e11 | Iustin Pop | showHeader :: String -> (String, Bool) |
736 | 76354e11 | Iustin Pop | showHeader field = |
737 | fd7a7c73 | Iustin Pop | case field of |
738 | fd7a7c73 | Iustin Pop | "idx" -> ("Index", True) |
739 | fd7a7c73 | Iustin Pop | "name" -> ("Name", False) |
740 | fd7a7c73 | Iustin Pop | "fqdn" -> ("Name", False) |
741 | fd7a7c73 | Iustin Pop | "status" -> ("F", False) |
742 | fd7a7c73 | Iustin Pop | "tmem" -> ("t_mem", True) |
743 | fd7a7c73 | Iustin Pop | "nmem" -> ("n_mem", True) |
744 | fd7a7c73 | Iustin Pop | "xmem" -> ("x_mem", True) |
745 | fd7a7c73 | Iustin Pop | "fmem" -> ("f_mem", True) |
746 | fd7a7c73 | Iustin Pop | "imem" -> ("i_mem", True) |
747 | fd7a7c73 | Iustin Pop | "rmem" -> ("r_mem", True) |
748 | fd7a7c73 | Iustin Pop | "amem" -> ("a_mem", True) |
749 | fd7a7c73 | Iustin Pop | "tdsk" -> ("t_dsk", True) |
750 | fd7a7c73 | Iustin Pop | "fdsk" -> ("f_dsk", True) |
751 | fd7a7c73 | Iustin Pop | "tcpu" -> ("pcpu", True) |
752 | fd7a7c73 | Iustin Pop | "ucpu" -> ("vcpu", True) |
753 | fd7a7c73 | Iustin Pop | "pcnt" -> ("pcnt", True) |
754 | fd7a7c73 | Iustin Pop | "scnt" -> ("scnt", True) |
755 | fd7a7c73 | Iustin Pop | "plist" -> ("primaries", True) |
756 | fd7a7c73 | Iustin Pop | "slist" -> ("secondaries", True) |
757 | fd7a7c73 | Iustin Pop | "pfmem" -> ("p_fmem", True) |
758 | fd7a7c73 | Iustin Pop | "pfdsk" -> ("p_fdsk", True) |
759 | fd7a7c73 | Iustin Pop | "rcpu" -> ("r_cpu", True) |
760 | fd7a7c73 | Iustin Pop | "cload" -> ("lCpu", True) |
761 | fd7a7c73 | Iustin Pop | "mload" -> ("lMem", True) |
762 | fd7a7c73 | Iustin Pop | "dload" -> ("lDsk", True) |
763 | fd7a7c73 | Iustin Pop | "nload" -> ("lNet", True) |
764 | fd7a7c73 | Iustin Pop | "ptags" -> ("PrimaryTags", False) |
765 | fd7a7c73 | Iustin Pop | "peermap" -> ("PeerMap", False) |
766 | 34ace266 | Iustin Pop | "spindle_count" -> ("NodeSpindles", True) |
767 | 34ace266 | Iustin Pop | "hi_spindles" -> ("MaxSpindles", True) |
768 | 34ace266 | Iustin Pop | "inst_spindles" -> ("InstSpindles", True) |
769 | fd7a7c73 | Iustin Pop | -- TODO: add node fields (group.uuid, group) |
770 | fd7a7c73 | Iustin Pop | _ -> (T.unknownField, False) |
771 | c5f7412e | Iustin Pop | |
772 | e4f08c46 | Iustin Pop | -- | String converter for the node list functionality. |
773 | 76354e11 | Iustin Pop | list :: [String] -> Node -> [String] |
774 | 76354e11 | Iustin Pop | list fields t = map (showField t) fields |
775 | 76354e11 | Iustin Pop | |
776 | 525bfb36 | Iustin Pop | -- | Constant holding the fields we're displaying by default. |
777 | 76354e11 | Iustin Pop | defaultFields :: [String] |
778 | 76354e11 | Iustin Pop | defaultFields = |
779 | fd7a7c73 | Iustin Pop | [ "status", "name", "tmem", "nmem", "imem", "xmem", "fmem" |
780 | fd7a7c73 | Iustin Pop | , "rmem", "tdsk", "fdsk", "tcpu", "ucpu", "pcnt", "scnt" |
781 | fd7a7c73 | Iustin Pop | , "pfmem", "pfdsk", "rcpu" |
782 | fd7a7c73 | Iustin Pop | , "cload", "mload", "dload", "nload" ] |
783 | d8bcd0a8 | Iustin Pop | |
784 | 72747d91 | Iustin Pop | {-# ANN computeGroups "HLint: ignore Use alternative" #-} |
785 | d8bcd0a8 | Iustin Pop | -- | Split a list of nodes into a list of (node group UUID, list of |
786 | 525bfb36 | Iustin Pop | -- associated nodes). |
787 | 10ef6b4e | Iustin Pop | computeGroups :: [Node] -> [(T.Gdx, [Node])] |
788 | d8bcd0a8 | Iustin Pop | computeGroups nodes = |
789 | d8bcd0a8 | Iustin Pop | let nodes' = sortBy (comparing group) nodes |
790 | 86aa9ba3 | Iustin Pop | nodes'' = groupBy ((==) `on` group) nodes' |
791 | 72747d91 | Iustin Pop | -- use of head here is OK, since groupBy returns non-empty lists; if |
792 | 72747d91 | Iustin Pop | -- you remove groupBy, also remove use of head |
793 | d8bcd0a8 | Iustin Pop | in map (\nl -> (group (head nl), nl)) nodes'' |