root / htools / Ganeti / HTools / Node.hs @ 23fe06c2
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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 | 425af248 | Iustin Pop | Copyright (C) 2009, 2010, 2011 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 | aa8d2e71 | Iustin Pop | ( Node(..) |
30 | 262a08a2 | Iustin Pop | , List |
31 | e4f08c46 | Iustin Pop | -- * Constructor |
32 | e4f08c46 | Iustin Pop | , create |
33 | e4f08c46 | Iustin Pop | -- ** Finalization after data loading |
34 | e4f08c46 | Iustin Pop | , buildPeers |
35 | e4f08c46 | Iustin Pop | , setIdx |
36 | 8bcdde0c | Iustin Pop | , setAlias |
37 | c2c1ef0c | Iustin Pop | , setOffline |
38 | 8c5b0a0d | Iustin Pop | , setXmem |
39 | 53f00b20 | Iustin Pop | , setFmem |
40 | 9188aeef | Iustin Pop | , setPri |
41 | 9188aeef | Iustin Pop | , setSec |
42 | 844eff86 | Iustin Pop | , setMdsk |
43 | 844eff86 | Iustin Pop | , setMcpu |
44 | 1e3dccc8 | Iustin Pop | -- * Tag maps |
45 | 1e3dccc8 | Iustin Pop | , addTags |
46 | 1e3dccc8 | Iustin Pop | , delTags |
47 | 1e3dccc8 | Iustin Pop | , rejectAddTags |
48 | e4f08c46 | Iustin Pop | -- * Instance (re)location |
49 | e4f08c46 | Iustin Pop | , removePri |
50 | e4f08c46 | Iustin Pop | , removeSec |
51 | e4f08c46 | Iustin Pop | , addPri |
52 | 3e3c9393 | Iustin Pop | , addPriEx |
53 | e4f08c46 | Iustin Pop | , addSec |
54 | 3e3c9393 | Iustin Pop | , addSecEx |
55 | fe3d6f02 | Iustin Pop | -- * Stats |
56 | fe3d6f02 | Iustin Pop | , availDisk |
57 | 1e3dccc8 | Iustin Pop | , availMem |
58 | 1e3dccc8 | Iustin Pop | , availCpu |
59 | 425af248 | Iustin Pop | , iMem |
60 | 55da339e | Iustin Pop | , iDsk |
61 | 1e4b5230 | Iustin Pop | , conflictingPrimaries |
62 | e4f08c46 | Iustin Pop | -- * Formatting |
63 | 76354e11 | Iustin Pop | , defaultFields |
64 | 76354e11 | Iustin Pop | , showHeader |
65 | 76354e11 | Iustin Pop | , showField |
66 | e4f08c46 | Iustin Pop | , list |
67 | 040afc35 | Iustin Pop | -- * Misc stuff |
68 | 040afc35 | Iustin Pop | , AssocList |
69 | 1fe81531 | Iustin Pop | , AllocElement |
70 | 040afc35 | Iustin Pop | , noSecondary |
71 | d8bcd0a8 | Iustin Pop | , computeGroups |
72 | e4f08c46 | Iustin Pop | ) where |
73 | e4f08c46 | Iustin Pop | |
74 | a68004b7 | Iustin Pop | import Data.List hiding (group) |
75 | 5f0b9579 | Iustin Pop | import qualified Data.Map as Map |
76 | 1e4b5230 | Iustin Pop | import qualified Data.Foldable as Foldable |
77 | d8bcd0a8 | Iustin Pop | import Data.Ord (comparing) |
78 | e4f08c46 | Iustin Pop | import Text.Printf (printf) |
79 | e4f08c46 | Iustin Pop | |
80 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.Container as Container |
81 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.Instance as Instance |
82 | 12e6776a | Iustin Pop | import qualified Ganeti.HTools.PeerMap as P |
83 | e4f08c46 | Iustin Pop | |
84 | 262a08a2 | Iustin Pop | import qualified Ganeti.HTools.Types as T |
85 | 262a08a2 | Iustin Pop | |
86 | 9188aeef | Iustin Pop | -- * Type declarations |
87 | 9188aeef | Iustin Pop | |
88 | 525bfb36 | Iustin Pop | -- | The tag map type. |
89 | 5f0b9579 | Iustin Pop | type TagMap = Map.Map String Int |
90 | 5f0b9579 | Iustin Pop | |
91 | 9188aeef | Iustin Pop | -- | The node type. |
92 | 12e6776a | Iustin Pop | data Node = Node |
93 | 12e6776a | Iustin Pop | { name :: String -- ^ The node name |
94 | 8bcdde0c | Iustin Pop | , alias :: String -- ^ The shortened name (for display purposes) |
95 | 12e6776a | Iustin Pop | , tMem :: Double -- ^ Total memory (MiB) |
96 | 12e6776a | Iustin Pop | , nMem :: Int -- ^ Node memory (MiB) |
97 | 12e6776a | Iustin Pop | , fMem :: Int -- ^ Free memory (MiB) |
98 | 12e6776a | Iustin Pop | , xMem :: Int -- ^ Unaccounted memory (MiB) |
99 | 12e6776a | Iustin Pop | , tDsk :: Double -- ^ Total disk space (MiB) |
100 | 12e6776a | Iustin Pop | , fDsk :: Int -- ^ Free disk space (MiB) |
101 | 12e6776a | Iustin Pop | , tCpu :: Double -- ^ Total CPU count |
102 | 12e6776a | Iustin Pop | , uCpu :: Int -- ^ Used VCPU count |
103 | 12e6776a | Iustin Pop | , pList :: [T.Idx] -- ^ List of primary instance indices |
104 | 12e6776a | Iustin Pop | , sList :: [T.Idx] -- ^ List of secondary instance indices |
105 | 12e6776a | Iustin Pop | , idx :: T.Ndx -- ^ Internal index for book-keeping |
106 | 12e6776a | Iustin Pop | , peers :: P.PeerMap -- ^ Pnode to instance mapping |
107 | 12e6776a | Iustin Pop | , failN1 :: Bool -- ^ Whether the node has failed n1 |
108 | 12e6776a | Iustin Pop | , rMem :: Int -- ^ Maximum memory needed for failover by |
109 | 12e6776a | Iustin Pop | -- primaries of this node |
110 | 12e6776a | Iustin Pop | , pMem :: Double -- ^ Percent of free memory |
111 | 12e6776a | Iustin Pop | , pDsk :: Double -- ^ Percent of free disk |
112 | 12e6776a | Iustin Pop | , pRem :: Double -- ^ Percent of reserved memory |
113 | 12e6776a | Iustin Pop | , pCpu :: Double -- ^ Ratio of virtual to physical CPUs |
114 | 12e6776a | Iustin Pop | , mDsk :: Double -- ^ Minimum free disk ratio |
115 | 12e6776a | Iustin Pop | , mCpu :: Double -- ^ Max ratio of virt-to-phys CPUs |
116 | 12e6776a | Iustin Pop | , loDsk :: Int -- ^ Autocomputed from mDsk low disk |
117 | 12e6776a | Iustin Pop | -- threshold |
118 | 12e6776a | Iustin Pop | , hiCpu :: Int -- ^ Autocomputed from mCpu high cpu |
119 | 12e6776a | Iustin Pop | -- threshold |
120 | 12e6776a | Iustin Pop | , offline :: Bool -- ^ Whether the node should not be used |
121 | 12e6776a | Iustin Pop | -- for allocations and skipped from score |
122 | 12e6776a | Iustin Pop | -- computations |
123 | 12e6776a | Iustin Pop | , utilPool :: T.DynUtil -- ^ Total utilisation capacity |
124 | 12e6776a | Iustin Pop | , utilLoad :: T.DynUtil -- ^ Sum of instance utilisation |
125 | 5f0b9579 | Iustin Pop | , pTags :: TagMap -- ^ Map of primary instance tags and their count |
126 | 10ef6b4e | Iustin Pop | , group :: T.Gdx -- ^ The node's group (index) |
127 | 6bc39970 | Iustin Pop | } deriving (Show, Read, Eq) |
128 | e4f08c46 | Iustin Pop | |
129 | 262a08a2 | Iustin Pop | instance T.Element Node where |
130 | 262a08a2 | Iustin Pop | nameOf = name |
131 | 262a08a2 | Iustin Pop | idxOf = idx |
132 | 3e4480e0 | Iustin Pop | setAlias = setAlias |
133 | 262a08a2 | Iustin Pop | setIdx = setIdx |
134 | c854092b | Iustin Pop | allNames n = [name n, alias n] |
135 | 262a08a2 | Iustin Pop | |
136 | 9188aeef | Iustin Pop | -- | A simple name for the int, node association list. |
137 | 608efcce | Iustin Pop | type AssocList = [(T.Ndx, Node)] |
138 | 040afc35 | Iustin Pop | |
139 | 9188aeef | Iustin Pop | -- | A simple name for a node map. |
140 | 262a08a2 | Iustin Pop | type List = Container.Container Node |
141 | 262a08a2 | Iustin Pop | |
142 | 1fe81531 | Iustin Pop | -- | A simple name for an allocation element (here just for logistic |
143 | 525bfb36 | Iustin Pop | -- reasons). |
144 | 7d3f4253 | Iustin Pop | type AllocElement = (List, Instance.Instance, [Node], T.Score) |
145 | 1fe81531 | Iustin Pop | |
146 | 9188aeef | Iustin Pop | -- | Constant node index for a non-moveable instance. |
147 | 608efcce | Iustin Pop | noSecondary :: T.Ndx |
148 | 040afc35 | Iustin Pop | noSecondary = -1 |
149 | 040afc35 | Iustin Pop | |
150 | 5f0b9579 | Iustin Pop | -- * Helper functions |
151 | 5f0b9579 | Iustin Pop | |
152 | 525bfb36 | Iustin Pop | -- | Add a tag to a tagmap. |
153 | 5f0b9579 | Iustin Pop | addTag :: TagMap -> String -> TagMap |
154 | 5f0b9579 | Iustin Pop | addTag t s = Map.insertWith (+) s 1 t |
155 | 5f0b9579 | Iustin Pop | |
156 | 525bfb36 | Iustin Pop | -- | Add multiple tags. |
157 | 5f0b9579 | Iustin Pop | addTags :: TagMap -> [String] -> TagMap |
158 | 5f0b9579 | Iustin Pop | addTags = foldl' addTag |
159 | 5f0b9579 | Iustin Pop | |
160 | 525bfb36 | Iustin Pop | -- | Adjust or delete a tag from a tagmap. |
161 | 5f0b9579 | Iustin Pop | delTag :: TagMap -> String -> TagMap |
162 | 5f0b9579 | Iustin Pop | delTag t s = Map.update (\v -> if v > 1 |
163 | 5f0b9579 | Iustin Pop | then Just (v-1) |
164 | 5f0b9579 | Iustin Pop | else Nothing) |
165 | 5f0b9579 | Iustin Pop | s t |
166 | 5f0b9579 | Iustin Pop | |
167 | 525bfb36 | Iustin Pop | -- | Remove multiple tags. |
168 | 5f0b9579 | Iustin Pop | delTags :: TagMap -> [String] -> TagMap |
169 | 5f0b9579 | Iustin Pop | delTags = foldl' delTag |
170 | 5f0b9579 | Iustin Pop | |
171 | 525bfb36 | Iustin Pop | -- | Check if we can add a list of tags to a tagmap. |
172 | 5f0b9579 | Iustin Pop | rejectAddTags :: TagMap -> [String] -> Bool |
173 | 5182e970 | Iustin Pop | rejectAddTags t = any (`Map.member` t) |
174 | 5f0b9579 | Iustin Pop | |
175 | 1e4b5230 | Iustin Pop | -- | Check how many primary instances have conflicting tags. The |
176 | 1e4b5230 | Iustin Pop | -- algorithm to compute this is to sum the count of all tags, then |
177 | 1e4b5230 | Iustin Pop | -- subtract the size of the tag map (since each tag has at least one, |
178 | 1e4b5230 | Iustin Pop | -- non-conflicting instance); this is equivalent to summing the |
179 | 1e4b5230 | Iustin Pop | -- values in the tag map minus one. |
180 | 1e4b5230 | Iustin Pop | conflictingPrimaries :: Node -> Int |
181 | 1e4b5230 | Iustin Pop | conflictingPrimaries (Node { pTags = t }) = Foldable.sum t - Map.size t |
182 | 1e4b5230 | Iustin Pop | |
183 | 9188aeef | Iustin Pop | -- * Initialization functions |
184 | e4f08c46 | Iustin Pop | |
185 | 9188aeef | Iustin Pop | -- | Create a new node. |
186 | 9188aeef | Iustin Pop | -- |
187 | 9188aeef | Iustin Pop | -- The index and the peers maps are empty, and will be need to be |
188 | 9188aeef | Iustin Pop | -- update later via the 'setIdx' and 'buildPeers' functions. |
189 | 1a82215d | Iustin Pop | create :: String -> Double -> Int -> Int -> Double |
190 | 10ef6b4e | Iustin Pop | -> Int -> Double -> Bool -> T.Gdx -> Node |
191 | 2727257a | Iustin Pop | create name_init mem_t_init mem_n_init mem_f_init |
192 | a68004b7 | Iustin Pop | dsk_t_init dsk_f_init cpu_t_init offline_init group_init = |
193 | 8bcdde0c | Iustin Pop | Node { name = name_init |
194 | 8bcdde0c | Iustin Pop | , alias = name_init |
195 | 2180829f | Iustin Pop | , tMem = mem_t_init |
196 | 2180829f | Iustin Pop | , nMem = mem_n_init |
197 | 2180829f | Iustin Pop | , fMem = mem_f_init |
198 | 2180829f | Iustin Pop | , tDsk = dsk_t_init |
199 | 2180829f | Iustin Pop | , fDsk = dsk_f_init |
200 | 2180829f | Iustin Pop | , tCpu = cpu_t_init |
201 | 2180829f | Iustin Pop | , uCpu = 0 |
202 | 2180829f | Iustin Pop | , pList = [] |
203 | 2180829f | Iustin Pop | , sList = [] |
204 | 2180829f | Iustin Pop | , failN1 = True |
205 | 2180829f | Iustin Pop | , idx = -1 |
206 | 12e6776a | Iustin Pop | , peers = P.empty |
207 | 2180829f | Iustin Pop | , rMem = 0 |
208 | 2180829f | Iustin Pop | , pMem = fromIntegral mem_f_init / mem_t_init |
209 | 2180829f | Iustin Pop | , pDsk = fromIntegral dsk_f_init / dsk_t_init |
210 | 2180829f | Iustin Pop | , pRem = 0 |
211 | 2180829f | Iustin Pop | , pCpu = 0 |
212 | 2180829f | Iustin Pop | , offline = offline_init |
213 | 2180829f | Iustin Pop | , xMem = 0 |
214 | f4c0b8c5 | Iustin Pop | , mDsk = T.defReservedDiskRatio |
215 | f4c0b8c5 | Iustin Pop | , mCpu = T.defVcpuRatio |
216 | f4c0b8c5 | Iustin Pop | , loDsk = mDskToloDsk T.defReservedDiskRatio dsk_t_init |
217 | f4c0b8c5 | Iustin Pop | , hiCpu = mCpuTohiCpu T.defVcpuRatio cpu_t_init |
218 | ee9724b9 | Iustin Pop | , utilPool = T.baseUtil |
219 | 2180829f | Iustin Pop | , utilLoad = T.zeroUtil |
220 | 5f0b9579 | Iustin Pop | , pTags = Map.empty |
221 | a68004b7 | Iustin Pop | , group = group_init |
222 | 2180829f | Iustin Pop | } |
223 | e4f08c46 | Iustin Pop | |
224 | 525bfb36 | Iustin Pop | -- | Conversion formula from mDsk\/tDsk to loDsk. |
225 | f4c0b8c5 | Iustin Pop | mDskToloDsk :: Double -> Double -> Int |
226 | f4c0b8c5 | Iustin Pop | mDskToloDsk mval tdsk = floor (mval * tdsk) |
227 | f4c0b8c5 | Iustin Pop | |
228 | 525bfb36 | Iustin Pop | -- | Conversion formula from mCpu\/tCpu to hiCpu. |
229 | f4c0b8c5 | Iustin Pop | mCpuTohiCpu :: Double -> Double -> Int |
230 | f4c0b8c5 | Iustin Pop | mCpuTohiCpu mval tcpu = floor (mval * tcpu) |
231 | f4c0b8c5 | Iustin Pop | |
232 | e4f08c46 | Iustin Pop | -- | Changes the index. |
233 | 9188aeef | Iustin Pop | -- |
234 | e4f08c46 | Iustin Pop | -- This is used only during the building of the data structures. |
235 | 608efcce | Iustin Pop | setIdx :: Node -> T.Ndx -> Node |
236 | e4f08c46 | Iustin Pop | setIdx t i = t {idx = i} |
237 | e4f08c46 | Iustin Pop | |
238 | 8bcdde0c | Iustin Pop | -- | Changes the alias. |
239 | 8bcdde0c | Iustin Pop | -- |
240 | 8bcdde0c | Iustin Pop | -- This is used only during the building of the data structures. |
241 | 8bcdde0c | Iustin Pop | setAlias :: Node -> String -> Node |
242 | 8bcdde0c | Iustin Pop | setAlias t s = t { alias = s } |
243 | 497e30a1 | Iustin Pop | |
244 | 9188aeef | Iustin Pop | -- | Sets the offline attribute. |
245 | c2c1ef0c | Iustin Pop | setOffline :: Node -> Bool -> Node |
246 | c2c1ef0c | Iustin Pop | setOffline t val = t { offline = val } |
247 | c2c1ef0c | Iustin Pop | |
248 | 9188aeef | Iustin Pop | -- | Sets the unnaccounted memory. |
249 | 8c5b0a0d | Iustin Pop | setXmem :: Node -> Int -> Node |
250 | 2060348b | Iustin Pop | setXmem t val = t { xMem = val } |
251 | 8c5b0a0d | Iustin Pop | |
252 | 525bfb36 | Iustin Pop | -- | Sets the max disk usage ratio. |
253 | 844eff86 | Iustin Pop | setMdsk :: Node -> Double -> Node |
254 | f4c0b8c5 | Iustin Pop | setMdsk t val = t { mDsk = val, loDsk = mDskToloDsk val (tDsk t) } |
255 | 844eff86 | Iustin Pop | |
256 | 525bfb36 | Iustin Pop | -- | Sets the max cpu usage ratio. |
257 | 844eff86 | Iustin Pop | setMcpu :: Node -> Double -> Node |
258 | f4c0b8c5 | Iustin Pop | setMcpu t val = t { mCpu = val, hiCpu = mCpuTohiCpu val (tCpu t) } |
259 | 844eff86 | Iustin Pop | |
260 | e4f08c46 | Iustin Pop | -- | Computes the maximum reserved memory for peers from a peer map. |
261 | 12e6776a | Iustin Pop | computeMaxRes :: P.PeerMap -> P.Elem |
262 | 12e6776a | Iustin Pop | computeMaxRes = P.maxElem |
263 | e4f08c46 | Iustin Pop | |
264 | e4f08c46 | Iustin Pop | -- | Builds the peer map for a given node. |
265 | 9cf4267a | Iustin Pop | buildPeers :: Node -> Instance.List -> Node |
266 | 9cf4267a | Iustin Pop | buildPeers t il = |
267 | e4f08c46 | Iustin Pop | let mdata = map |
268 | e4f08c46 | Iustin Pop | (\i_idx -> let inst = Container.find i_idx il |
269 | 0e09422b | Iustin Pop | mem = if Instance.autoBalance inst |
270 | 929b60d8 | Iustin Pop | then Instance.mem inst |
271 | 929b60d8 | Iustin Pop | else 0 |
272 | 929b60d8 | Iustin Pop | in (Instance.pNode inst, mem)) |
273 | 2060348b | Iustin Pop | (sList t) |
274 | 12e6776a | Iustin Pop | pmap = P.accumArray (+) mdata |
275 | e4f08c46 | Iustin Pop | new_rmem = computeMaxRes pmap |
276 | 2060348b | Iustin Pop | new_failN1 = fMem t <= new_rmem |
277 | 2060348b | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
278 | 2060348b | Iustin Pop | in t {peers=pmap, failN1 = new_failN1, rMem = new_rmem, pRem = new_prem} |
279 | e4f08c46 | Iustin Pop | |
280 | a488a217 | Iustin Pop | -- | Assigns an instance to a node as primary and update the used VCPU |
281 | 5f0b9579 | Iustin Pop | -- count, utilisation data and tags map. |
282 | a488a217 | Iustin Pop | setPri :: Node -> Instance.Instance -> Node |
283 | aa8d2e71 | Iustin Pop | setPri t inst = t { pList = Instance.idx inst:pList t |
284 | a488a217 | Iustin Pop | , uCpu = new_count |
285 | aa8d2e71 | Iustin Pop | , pCpu = fromIntegral new_count / tCpu t |
286 | aa8d2e71 | Iustin Pop | , utilLoad = utilLoad t `T.addUtil` Instance.util inst |
287 | 5f0b9579 | Iustin Pop | , pTags = addTags (pTags t) (Instance.tags inst) |
288 | aa8d2e71 | Iustin Pop | } |
289 | a488a217 | Iustin Pop | where new_count = uCpu t + Instance.vcpus inst |
290 | 9188aeef | Iustin Pop | |
291 | 9188aeef | Iustin Pop | -- | Assigns an instance to a node as secondary without other updates. |
292 | a488a217 | Iustin Pop | setSec :: Node -> Instance.Instance -> Node |
293 | aa8d2e71 | Iustin Pop | setSec t inst = t { sList = Instance.idx inst:sList t |
294 | aa8d2e71 | Iustin Pop | , utilLoad = old_load { T.dskWeight = T.dskWeight old_load + |
295 | aa8d2e71 | Iustin Pop | T.dskWeight (Instance.util inst) } |
296 | aa8d2e71 | Iustin Pop | } |
297 | aa8d2e71 | Iustin Pop | where old_load = utilLoad t |
298 | 1a82215d | Iustin Pop | |
299 | 9188aeef | Iustin Pop | -- * Update functions |
300 | 9188aeef | Iustin Pop | |
301 | 9188aeef | Iustin Pop | -- | Sets the free memory. |
302 | 9188aeef | Iustin Pop | setFmem :: Node -> Int -> Node |
303 | 9188aeef | Iustin Pop | setFmem t new_mem = |
304 | 2060348b | Iustin Pop | let new_n1 = new_mem <= rMem t |
305 | 2060348b | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
306 | bbd8efd2 | Iustin Pop | in t { fMem = new_mem, failN1 = new_n1, pMem = new_mp } |
307 | 9188aeef | Iustin Pop | |
308 | e4f08c46 | Iustin Pop | -- | Removes a primary instance. |
309 | e4f08c46 | Iustin Pop | removePri :: Node -> Instance.Instance -> Node |
310 | e4f08c46 | Iustin Pop | removePri t inst = |
311 | e4f08c46 | Iustin Pop | let iname = Instance.idx inst |
312 | 2060348b | Iustin Pop | new_plist = delete iname (pList t) |
313 | 2060348b | Iustin Pop | new_mem = fMem t + Instance.mem inst |
314 | 2060348b | Iustin Pop | new_dsk = fDsk t + Instance.dsk inst |
315 | 2060348b | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
316 | 2060348b | Iustin Pop | new_dp = fromIntegral new_dsk / tDsk t |
317 | 2060348b | Iustin Pop | new_failn1 = new_mem <= rMem t |
318 | 2060348b | Iustin Pop | new_ucpu = uCpu t - Instance.vcpus inst |
319 | 2060348b | Iustin Pop | new_rcpu = fromIntegral new_ucpu / tCpu t |
320 | aa8d2e71 | Iustin Pop | new_load = utilLoad t `T.subUtil` Instance.util inst |
321 | bbd8efd2 | Iustin Pop | in t { pList = new_plist, fMem = new_mem, fDsk = new_dsk |
322 | bbd8efd2 | Iustin Pop | , failN1 = new_failn1, pMem = new_mp, pDsk = new_dp |
323 | 5f0b9579 | Iustin Pop | , uCpu = new_ucpu, pCpu = new_rcpu, utilLoad = new_load |
324 | 5f0b9579 | Iustin Pop | , pTags = delTags (pTags t) (Instance.tags inst) } |
325 | e4f08c46 | Iustin Pop | |
326 | e4f08c46 | Iustin Pop | -- | Removes a secondary instance. |
327 | e4f08c46 | Iustin Pop | removeSec :: Node -> Instance.Instance -> Node |
328 | e4f08c46 | Iustin Pop | removeSec t inst = |
329 | e4f08c46 | Iustin Pop | let iname = Instance.idx inst |
330 | 10f055ac | Iustin Pop | uses_disk = Instance.usesLocalStorage inst |
331 | 10f055ac | Iustin Pop | cur_dsk = fDsk t |
332 | 2060348b | Iustin Pop | pnode = Instance.pNode inst |
333 | 2060348b | Iustin Pop | new_slist = delete iname (sList t) |
334 | 10f055ac | Iustin Pop | new_dsk = if uses_disk |
335 | 10f055ac | Iustin Pop | then cur_dsk + Instance.dsk inst |
336 | 10f055ac | Iustin Pop | else cur_dsk |
337 | e4f08c46 | Iustin Pop | old_peers = peers t |
338 | 12e6776a | Iustin Pop | old_peem = P.find pnode old_peers |
339 | 0e09422b | Iustin Pop | new_peem = if Instance.autoBalance inst |
340 | 929b60d8 | Iustin Pop | then old_peem - Instance.mem inst |
341 | 929b60d8 | Iustin Pop | else old_peem |
342 | 124b7cd7 | Iustin Pop | new_peers = if new_peem > 0 |
343 | 124b7cd7 | Iustin Pop | then P.add pnode new_peem old_peers |
344 | 124b7cd7 | Iustin Pop | else P.remove pnode old_peers |
345 | 2060348b | Iustin Pop | old_rmem = rMem t |
346 | bbd8efd2 | Iustin Pop | new_rmem = if old_peem < old_rmem |
347 | bbd8efd2 | Iustin Pop | then old_rmem |
348 | bbd8efd2 | Iustin Pop | else computeMaxRes new_peers |
349 | 2060348b | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
350 | 2060348b | Iustin Pop | new_failn1 = fMem t <= new_rmem |
351 | 2060348b | Iustin Pop | new_dp = fromIntegral new_dsk / tDsk t |
352 | aa8d2e71 | Iustin Pop | old_load = utilLoad t |
353 | aa8d2e71 | Iustin Pop | new_load = old_load { T.dskWeight = T.dskWeight old_load - |
354 | aa8d2e71 | Iustin Pop | T.dskWeight (Instance.util inst) } |
355 | bbd8efd2 | Iustin Pop | in t { sList = new_slist, fDsk = new_dsk, peers = new_peers |
356 | bbd8efd2 | Iustin Pop | , failN1 = new_failn1, rMem = new_rmem, pDsk = new_dp |
357 | bbd8efd2 | Iustin Pop | , pRem = new_prem, utilLoad = new_load } |
358 | e4f08c46 | Iustin Pop | |
359 | 3e3c9393 | Iustin Pop | -- | Adds a primary instance (basic version). |
360 | f2280553 | Iustin Pop | addPri :: Node -> Instance.Instance -> T.OpResult Node |
361 | 3e3c9393 | Iustin Pop | addPri = addPriEx False |
362 | 3e3c9393 | Iustin Pop | |
363 | 3e3c9393 | Iustin Pop | -- | Adds a primary instance (extended version). |
364 | 3e3c9393 | Iustin Pop | addPriEx :: Bool -- ^ Whether to override the N+1 and |
365 | 3e3c9393 | Iustin Pop | -- other /soft/ checks, useful if we |
366 | 3e3c9393 | Iustin Pop | -- come from a worse status |
367 | 3e3c9393 | Iustin Pop | -- (e.g. offline) |
368 | 3e3c9393 | Iustin Pop | -> Node -- ^ The target node |
369 | 3e3c9393 | Iustin Pop | -> Instance.Instance -- ^ The instance to add |
370 | 3e3c9393 | Iustin Pop | -> T.OpResult Node -- ^ The result of the operation, |
371 | 3e3c9393 | Iustin Pop | -- either the new version of the node |
372 | 3e3c9393 | Iustin Pop | -- or a failure mode |
373 | 3e3c9393 | Iustin Pop | addPriEx force t inst = |
374 | e4f08c46 | Iustin Pop | let iname = Instance.idx inst |
375 | 10f055ac | Iustin Pop | uses_disk = Instance.usesLocalStorage inst |
376 | 10f055ac | Iustin Pop | cur_dsk = fDsk t |
377 | 2060348b | Iustin Pop | new_mem = fMem t - Instance.mem inst |
378 | 10f055ac | Iustin Pop | new_dsk = if uses_disk |
379 | 10f055ac | Iustin Pop | then cur_dsk - Instance.dsk inst |
380 | 10f055ac | Iustin Pop | else cur_dsk |
381 | 2060348b | Iustin Pop | new_failn1 = new_mem <= rMem t |
382 | 2060348b | Iustin Pop | new_ucpu = uCpu t + Instance.vcpus inst |
383 | 2060348b | Iustin Pop | new_pcpu = fromIntegral new_ucpu / tCpu t |
384 | 2060348b | Iustin Pop | new_dp = fromIntegral new_dsk / tDsk t |
385 | 2060348b | Iustin Pop | l_cpu = mCpu t |
386 | aa8d2e71 | Iustin Pop | new_load = utilLoad t `T.addUtil` Instance.util inst |
387 | 5f0b9579 | Iustin Pop | inst_tags = Instance.tags inst |
388 | 5f0b9579 | Iustin Pop | old_tags = pTags t |
389 | 3e3c9393 | Iustin Pop | strict = not force |
390 | a4a6e623 | Iustin Pop | in case () of |
391 | a4a6e623 | Iustin Pop | _ | new_mem <= 0 -> T.OpFail T.FailMem |
392 | 10f055ac | Iustin Pop | | uses_disk && new_dsk <= 0 -> T.OpFail T.FailDisk |
393 | 10f055ac | Iustin Pop | | uses_disk && mDsk t > new_dp && strict -> T.OpFail T.FailDisk |
394 | 3e3c9393 | Iustin Pop | | new_failn1 && not (failN1 t) && strict -> T.OpFail T.FailMem |
395 | 3e3c9393 | Iustin Pop | | l_cpu >= 0 && l_cpu < new_pcpu && strict -> T.OpFail T.FailCPU |
396 | a4a6e623 | Iustin Pop | | rejectAddTags old_tags inst_tags -> T.OpFail T.FailTags |
397 | a4a6e623 | Iustin Pop | | otherwise -> |
398 | a4a6e623 | Iustin Pop | let new_plist = iname:pList t |
399 | a4a6e623 | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
400 | a4a6e623 | Iustin Pop | r = t { pList = new_plist, fMem = new_mem, fDsk = new_dsk |
401 | a4a6e623 | Iustin Pop | , failN1 = new_failn1, pMem = new_mp, pDsk = new_dp |
402 | a4a6e623 | Iustin Pop | , uCpu = new_ucpu, pCpu = new_pcpu |
403 | a4a6e623 | Iustin Pop | , utilLoad = new_load |
404 | a4a6e623 | Iustin Pop | , pTags = addTags old_tags inst_tags } |
405 | a4a6e623 | Iustin Pop | in T.OpGood r |
406 | e4f08c46 | Iustin Pop | |
407 | 3e3c9393 | Iustin Pop | -- | Adds a secondary instance (basic version). |
408 | f2280553 | Iustin Pop | addSec :: Node -> Instance.Instance -> T.Ndx -> T.OpResult Node |
409 | 3e3c9393 | Iustin Pop | addSec = addSecEx False |
410 | 3e3c9393 | Iustin Pop | |
411 | 3e3c9393 | Iustin Pop | -- | Adds a secondary instance (extended version). |
412 | 3e3c9393 | Iustin Pop | addSecEx :: Bool -> Node -> Instance.Instance -> T.Ndx -> T.OpResult Node |
413 | 3e3c9393 | Iustin Pop | addSecEx force t inst pdx = |
414 | e4f08c46 | Iustin Pop | let iname = Instance.idx inst |
415 | e4f08c46 | Iustin Pop | old_peers = peers t |
416 | 2060348b | Iustin Pop | old_mem = fMem t |
417 | 2060348b | Iustin Pop | new_dsk = fDsk t - Instance.dsk inst |
418 | 0e09422b | Iustin Pop | secondary_needed_mem = if Instance.autoBalance inst |
419 | 929b60d8 | Iustin Pop | then Instance.mem inst |
420 | 929b60d8 | Iustin Pop | else 0 |
421 | 929b60d8 | Iustin Pop | new_peem = P.find pdx old_peers + secondary_needed_mem |
422 | 12e6776a | Iustin Pop | new_peers = P.add pdx new_peem old_peers |
423 | 2060348b | Iustin Pop | new_rmem = max (rMem t) new_peem |
424 | 2060348b | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
425 | c43c3354 | Iustin Pop | new_failn1 = old_mem <= new_rmem |
426 | 2060348b | Iustin Pop | new_dp = fromIntegral new_dsk / tDsk t |
427 | aa8d2e71 | Iustin Pop | old_load = utilLoad t |
428 | aa8d2e71 | Iustin Pop | new_load = old_load { T.dskWeight = T.dskWeight old_load + |
429 | aa8d2e71 | Iustin Pop | T.dskWeight (Instance.util inst) } |
430 | 3e3c9393 | Iustin Pop | strict = not force |
431 | a4a6e623 | Iustin Pop | in case () of |
432 | 10f055ac | Iustin Pop | _ | not (Instance.hasSecondary inst) -> T.OpFail T.FailDisk |
433 | 10f055ac | Iustin Pop | | new_dsk <= 0 -> T.OpFail T.FailDisk |
434 | 3e3c9393 | Iustin Pop | | mDsk t > new_dp && strict -> T.OpFail T.FailDisk |
435 | 929b60d8 | Iustin Pop | | secondary_needed_mem >= old_mem && strict -> T.OpFail T.FailMem |
436 | 3e3c9393 | Iustin Pop | | new_failn1 && not (failN1 t) && strict -> T.OpFail T.FailMem |
437 | a4a6e623 | Iustin Pop | | otherwise -> |
438 | a4a6e623 | Iustin Pop | let new_slist = iname:sList t |
439 | a4a6e623 | Iustin Pop | r = t { sList = new_slist, fDsk = new_dsk |
440 | a4a6e623 | Iustin Pop | , peers = new_peers, failN1 = new_failn1 |
441 | a4a6e623 | Iustin Pop | , rMem = new_rmem, pDsk = new_dp |
442 | a4a6e623 | Iustin Pop | , pRem = new_prem, utilLoad = new_load } |
443 | a4a6e623 | Iustin Pop | in T.OpGood r |
444 | e4f08c46 | Iustin Pop | |
445 | fe3d6f02 | Iustin Pop | -- * Stats functions |
446 | fe3d6f02 | Iustin Pop | |
447 | 525bfb36 | Iustin Pop | -- | Computes the amount of available disk on a given node. |
448 | fe3d6f02 | Iustin Pop | availDisk :: Node -> Int |
449 | fe3d6f02 | Iustin Pop | availDisk t = |
450 | 2060348b | Iustin Pop | let _f = fDsk t |
451 | 2060348b | Iustin Pop | _l = loDsk t |
452 | f4c0b8c5 | Iustin Pop | in if _f < _l |
453 | f4c0b8c5 | Iustin Pop | then 0 |
454 | f4c0b8c5 | Iustin Pop | else _f - _l |
455 | fe3d6f02 | Iustin Pop | |
456 | 525bfb36 | Iustin Pop | -- | Computes the amount of used disk on a given node. |
457 | 55da339e | Iustin Pop | iDsk :: Node -> Int |
458 | 55da339e | Iustin Pop | iDsk t = truncate (tDsk t) - fDsk t |
459 | 55da339e | Iustin Pop | |
460 | 525bfb36 | Iustin Pop | -- | Computes the amount of available memory on a given node. |
461 | 1e3dccc8 | Iustin Pop | availMem :: Node -> Int |
462 | 1e3dccc8 | Iustin Pop | availMem t = |
463 | 1e3dccc8 | Iustin Pop | let _f = fMem t |
464 | 1e3dccc8 | Iustin Pop | _l = rMem t |
465 | 1e3dccc8 | Iustin Pop | in if _f < _l |
466 | 1e3dccc8 | Iustin Pop | then 0 |
467 | 1e3dccc8 | Iustin Pop | else _f - _l |
468 | 1e3dccc8 | Iustin Pop | |
469 | 525bfb36 | Iustin Pop | -- | Computes the amount of available memory on a given node. |
470 | 1e3dccc8 | Iustin Pop | availCpu :: Node -> Int |
471 | 1e3dccc8 | Iustin Pop | availCpu t = |
472 | 1e3dccc8 | Iustin Pop | let _u = uCpu t |
473 | 1e3dccc8 | Iustin Pop | _l = hiCpu t |
474 | 1e3dccc8 | Iustin Pop | in if _l >= _u |
475 | 1e3dccc8 | Iustin Pop | then _l - _u |
476 | 1e3dccc8 | Iustin Pop | else 0 |
477 | 1e3dccc8 | Iustin Pop | |
478 | 425af248 | Iustin Pop | -- | The memory used by instances on a given node. |
479 | 425af248 | Iustin Pop | iMem :: Node -> Int |
480 | 425af248 | Iustin Pop | iMem t = truncate (tMem t) - nMem t - xMem t - fMem t |
481 | 425af248 | Iustin Pop | |
482 | 9188aeef | Iustin Pop | -- * Display functions |
483 | 01f6a5d2 | Iustin Pop | |
484 | 525bfb36 | Iustin Pop | -- | Return a field for a given node. |
485 | 525bfb36 | Iustin Pop | showField :: Node -- ^ Node which we're querying |
486 | 525bfb36 | Iustin Pop | -> String -- ^ Field name |
487 | 525bfb36 | Iustin Pop | -> String -- ^ Field value as string |
488 | c5f7412e | Iustin Pop | showField t field = |
489 | c5f7412e | Iustin Pop | case field of |
490 | 16f08e82 | Iustin Pop | "idx" -> printf "%4d" $ idx t |
491 | 3e4480e0 | Iustin Pop | "name" -> alias t |
492 | 3e4480e0 | Iustin Pop | "fqdn" -> name t |
493 | cc532bdd | Iustin Pop | "status" -> case () of |
494 | cc532bdd | Iustin Pop | _ | offline t -> "-" |
495 | cc532bdd | Iustin Pop | | failN1 t -> "*" |
496 | cc532bdd | Iustin Pop | | otherwise -> " " |
497 | c5f7412e | Iustin Pop | "tmem" -> printf "%5.0f" $ tMem t |
498 | c5f7412e | Iustin Pop | "nmem" -> printf "%5d" $ nMem t |
499 | c5f7412e | Iustin Pop | "xmem" -> printf "%5d" $ xMem t |
500 | c5f7412e | Iustin Pop | "fmem" -> printf "%5d" $ fMem t |
501 | 425af248 | Iustin Pop | "imem" -> printf "%5d" $ iMem t |
502 | c5f7412e | Iustin Pop | "rmem" -> printf "%5d" $ rMem t |
503 | 76354e11 | Iustin Pop | "amem" -> printf "%5d" $ fMem t - rMem t |
504 | c5f7412e | Iustin Pop | "tdsk" -> printf "%5.0f" $ tDsk t / 1024 |
505 | c5f7412e | Iustin Pop | "fdsk" -> printf "%5d" $ fDsk t `div` 1024 |
506 | c5f7412e | Iustin Pop | "tcpu" -> printf "%4.0f" $ tCpu t |
507 | c5f7412e | Iustin Pop | "ucpu" -> printf "%4d" $ uCpu t |
508 | 16f08e82 | Iustin Pop | "pcnt" -> printf "%3d" $ length (pList t) |
509 | 16f08e82 | Iustin Pop | "scnt" -> printf "%3d" $ length (sList t) |
510 | 16f08e82 | Iustin Pop | "plist" -> show $ pList t |
511 | 16f08e82 | Iustin Pop | "slist" -> show $ sList t |
512 | c5f7412e | Iustin Pop | "pfmem" -> printf "%6.4f" $ pMem t |
513 | c5f7412e | Iustin Pop | "pfdsk" -> printf "%6.4f" $ pDsk t |
514 | c5f7412e | Iustin Pop | "rcpu" -> printf "%5.2f" $ pCpu t |
515 | c5f7412e | Iustin Pop | "cload" -> printf "%5.3f" uC |
516 | c5f7412e | Iustin Pop | "mload" -> printf "%5.3f" uM |
517 | c5f7412e | Iustin Pop | "dload" -> printf "%5.3f" uD |
518 | c5f7412e | Iustin Pop | "nload" -> printf "%5.3f" uN |
519 | d5072e4c | Iustin Pop | "ptags" -> intercalate "," . map (uncurry (printf "%s=%d")) . |
520 | b2999982 | Iustin Pop | Map.toList $ pTags t |
521 | 16f08e82 | Iustin Pop | "peermap" -> show $ peers t |
522 | 82ea2874 | Iustin Pop | _ -> T.unknownField |
523 | c5f7412e | Iustin Pop | where |
524 | c5f7412e | Iustin Pop | T.DynUtil { T.cpuWeight = uC, T.memWeight = uM, |
525 | c5f7412e | Iustin Pop | T.dskWeight = uD, T.netWeight = uN } = utilLoad t |
526 | c5f7412e | Iustin Pop | |
527 | 525bfb36 | Iustin Pop | -- | Returns the header and numeric propery of a field. |
528 | 76354e11 | Iustin Pop | showHeader :: String -> (String, Bool) |
529 | 76354e11 | Iustin Pop | showHeader field = |
530 | 76354e11 | Iustin Pop | case field of |
531 | 16f08e82 | Iustin Pop | "idx" -> ("Index", True) |
532 | 76354e11 | Iustin Pop | "name" -> ("Name", False) |
533 | 3e4480e0 | Iustin Pop | "fqdn" -> ("Name", False) |
534 | 76354e11 | Iustin Pop | "status" -> ("F", False) |
535 | 76354e11 | Iustin Pop | "tmem" -> ("t_mem", True) |
536 | 76354e11 | Iustin Pop | "nmem" -> ("n_mem", True) |
537 | 76354e11 | Iustin Pop | "xmem" -> ("x_mem", True) |
538 | 76354e11 | Iustin Pop | "fmem" -> ("f_mem", True) |
539 | 76354e11 | Iustin Pop | "imem" -> ("i_mem", True) |
540 | 76354e11 | Iustin Pop | "rmem" -> ("r_mem", True) |
541 | 76354e11 | Iustin Pop | "amem" -> ("a_mem", True) |
542 | 76354e11 | Iustin Pop | "tdsk" -> ("t_dsk", True) |
543 | 76354e11 | Iustin Pop | "fdsk" -> ("f_dsk", True) |
544 | 76354e11 | Iustin Pop | "tcpu" -> ("pcpu", True) |
545 | 76354e11 | Iustin Pop | "ucpu" -> ("vcpu", True) |
546 | 16f08e82 | Iustin Pop | "pcnt" -> ("pcnt", True) |
547 | 16f08e82 | Iustin Pop | "scnt" -> ("scnt", True) |
548 | 16f08e82 | Iustin Pop | "plist" -> ("primaries", True) |
549 | 16f08e82 | Iustin Pop | "slist" -> ("secondaries", True) |
550 | 76354e11 | Iustin Pop | "pfmem" -> ("p_fmem", True) |
551 | 76354e11 | Iustin Pop | "pfdsk" -> ("p_fdsk", True) |
552 | 76354e11 | Iustin Pop | "rcpu" -> ("r_cpu", True) |
553 | 76354e11 | Iustin Pop | "cload" -> ("lCpu", True) |
554 | 76354e11 | Iustin Pop | "mload" -> ("lMem", True) |
555 | 76354e11 | Iustin Pop | "dload" -> ("lDsk", True) |
556 | 76354e11 | Iustin Pop | "nload" -> ("lNet", True) |
557 | b2999982 | Iustin Pop | "ptags" -> ("PrimaryTags", False) |
558 | 16f08e82 | Iustin Pop | "peermap" -> ("PeerMap", False) |
559 | 10ef6b4e | Iustin Pop | -- TODO: add node fields (group.uuid, group) |
560 | 82ea2874 | Iustin Pop | _ -> (T.unknownField, False) |
561 | c5f7412e | Iustin Pop | |
562 | e4f08c46 | Iustin Pop | -- | String converter for the node list functionality. |
563 | 76354e11 | Iustin Pop | list :: [String] -> Node -> [String] |
564 | 76354e11 | Iustin Pop | list fields t = map (showField t) fields |
565 | 76354e11 | Iustin Pop | |
566 | 76354e11 | Iustin Pop | |
567 | 525bfb36 | Iustin Pop | -- | Constant holding the fields we're displaying by default. |
568 | 76354e11 | Iustin Pop | defaultFields :: [String] |
569 | 76354e11 | Iustin Pop | defaultFields = |
570 | 76354e11 | Iustin Pop | [ "status", "name", "tmem", "nmem", "imem", "xmem", "fmem" |
571 | 16f08e82 | Iustin Pop | , "rmem", "tdsk", "fdsk", "tcpu", "ucpu", "pcnt", "scnt" |
572 | 76354e11 | Iustin Pop | , "pfmem", "pfdsk", "rcpu" |
573 | 76354e11 | Iustin Pop | , "cload", "mload", "dload", "nload" ] |
574 | d8bcd0a8 | Iustin Pop | |
575 | d8bcd0a8 | Iustin Pop | -- | Split a list of nodes into a list of (node group UUID, list of |
576 | 525bfb36 | Iustin Pop | -- associated nodes). |
577 | 10ef6b4e | Iustin Pop | computeGroups :: [Node] -> [(T.Gdx, [Node])] |
578 | d8bcd0a8 | Iustin Pop | computeGroups nodes = |
579 | d8bcd0a8 | Iustin Pop | let nodes' = sortBy (comparing group) nodes |
580 | d8bcd0a8 | Iustin Pop | nodes'' = groupBy (\a b -> group a == group b) nodes' |
581 | d8bcd0a8 | Iustin Pop | in map (\nl -> (group (head nl), nl)) nodes'' |