root / Ganeti / HTools / Node.hs @ bbd8efd2
History | View | Annotate | Download (13.5 kB)
1 | e4f08c46 | Iustin Pop | {-| Module describing a node. |
---|---|---|---|
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 | e2fa2baf | Iustin Pop | Copyright (C) 2009 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 | 497e30a1 | Iustin Pop | , setName |
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 | e4f08c46 | Iustin Pop | -- * Instance (re)location |
45 | e4f08c46 | Iustin Pop | , removePri |
46 | e4f08c46 | Iustin Pop | , removeSec |
47 | e4f08c46 | Iustin Pop | , addPri |
48 | e4f08c46 | Iustin Pop | , addSec |
49 | fe3d6f02 | Iustin Pop | -- * Stats |
50 | fe3d6f02 | Iustin Pop | , availDisk |
51 | e4f08c46 | Iustin Pop | -- * Formatting |
52 | e4f08c46 | Iustin Pop | , list |
53 | 040afc35 | Iustin Pop | -- * Misc stuff |
54 | 040afc35 | Iustin Pop | , AssocList |
55 | 040afc35 | Iustin Pop | , noSecondary |
56 | e4f08c46 | Iustin Pop | ) where |
57 | e4f08c46 | Iustin Pop | |
58 | e4f08c46 | Iustin Pop | import Data.List |
59 | e4f08c46 | Iustin Pop | import Text.Printf (printf) |
60 | e4f08c46 | Iustin Pop | |
61 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.Container as Container |
62 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.Instance as Instance |
63 | 669d7e3d | Iustin Pop | import qualified Ganeti.HTools.PeerMap as PeerMap |
64 | e4f08c46 | Iustin Pop | |
65 | 262a08a2 | Iustin Pop | import qualified Ganeti.HTools.Types as T |
66 | 262a08a2 | Iustin Pop | |
67 | 9188aeef | Iustin Pop | -- * Type declarations |
68 | 9188aeef | Iustin Pop | |
69 | 9188aeef | Iustin Pop | -- | The node type. |
70 | bbd8efd2 | Iustin Pop | data Node = Node { name :: String -- ^ The node name |
71 | 2060348b | Iustin Pop | , tMem :: Double -- ^ Total memory (MiB) |
72 | 2060348b | Iustin Pop | , nMem :: Int -- ^ Node memory (MiB) |
73 | 2060348b | Iustin Pop | , fMem :: Int -- ^ Free memory (MiB) |
74 | 2060348b | Iustin Pop | , xMem :: Int -- ^ Unaccounted memory (MiB) |
75 | 2060348b | Iustin Pop | , tDsk :: Double -- ^ Total disk space (MiB) |
76 | 2060348b | Iustin Pop | , fDsk :: Int -- ^ Free disk space (MiB) |
77 | 2060348b | Iustin Pop | , tCpu :: Double -- ^ Total CPU count |
78 | 2060348b | Iustin Pop | , uCpu :: Int -- ^ Used VCPU count |
79 | 2060348b | Iustin Pop | , pList :: [T.Idx]-- ^ List of primary instance indices |
80 | 2060348b | Iustin Pop | , sList :: [T.Idx]-- ^ List of secondary instance indices |
81 | 9188aeef | Iustin Pop | , idx :: T.Ndx -- ^ Internal index for book-keeping |
82 | 9188aeef | Iustin Pop | , peers :: PeerMap.PeerMap -- ^ Pnode to instance mapping |
83 | bbd8efd2 | Iustin Pop | , failN1 :: Bool -- ^ Whether the node has failed n1 |
84 | 2060348b | Iustin Pop | , rMem :: Int -- ^ Maximum memory needed for |
85 | 80d0d2f1 | Iustin Pop | -- failover by primaries of this node |
86 | 2060348b | Iustin Pop | , pMem :: Double -- ^ Percent of free memory |
87 | 2060348b | Iustin Pop | , pDsk :: Double -- ^ Percent of free disk |
88 | 2060348b | Iustin Pop | , pRem :: Double -- ^ Percent of reserved memory |
89 | 2060348b | Iustin Pop | , pCpu :: Double -- ^ Ratio of virtual to physical CPUs |
90 | 2060348b | Iustin Pop | , mDsk :: Double -- ^ Minimum free disk ratio |
91 | 2060348b | Iustin Pop | , mCpu :: Double -- ^ Max ratio of virt-to-phys CPUs |
92 | 2060348b | Iustin Pop | , loDsk :: Int -- ^ Autocomputed from mDsk low disk |
93 | 836533fa | Iustin Pop | -- threshold |
94 | 2060348b | Iustin Pop | , hiCpu :: Int -- ^ Autocomputed from mCpu high cpu |
95 | 836533fa | Iustin Pop | -- threshold |
96 | 9188aeef | Iustin Pop | , offline :: Bool -- ^ Whether the node should not be used |
97 | c2c1ef0c | Iustin Pop | -- for allocations and skipped from |
98 | c2c1ef0c | Iustin Pop | -- score computations |
99 | 2180829f | Iustin Pop | , utilPool :: T.DynUtil -- ^ Total utilisation capacity |
100 | 2180829f | Iustin Pop | , utilLoad :: T.DynUtil -- ^ Sum of instance utilisation |
101 | 2180829f | Iustin Pop | } deriving (Show) |
102 | e4f08c46 | Iustin Pop | |
103 | 262a08a2 | Iustin Pop | instance T.Element Node where |
104 | 262a08a2 | Iustin Pop | nameOf = name |
105 | 262a08a2 | Iustin Pop | idxOf = idx |
106 | 262a08a2 | Iustin Pop | setName = setName |
107 | 262a08a2 | Iustin Pop | setIdx = setIdx |
108 | 262a08a2 | Iustin Pop | |
109 | 9188aeef | Iustin Pop | -- | A simple name for the int, node association list. |
110 | 608efcce | Iustin Pop | type AssocList = [(T.Ndx, Node)] |
111 | 040afc35 | Iustin Pop | |
112 | 9188aeef | Iustin Pop | -- | A simple name for a node map. |
113 | 262a08a2 | Iustin Pop | type List = Container.Container Node |
114 | 262a08a2 | Iustin Pop | |
115 | 9188aeef | Iustin Pop | -- | Constant node index for a non-moveable instance. |
116 | 608efcce | Iustin Pop | noSecondary :: T.Ndx |
117 | 040afc35 | Iustin Pop | noSecondary = -1 |
118 | 040afc35 | Iustin Pop | |
119 | 18b6444b | Iustin Pop | -- | No limit value |
120 | 18b6444b | Iustin Pop | noLimit :: Double |
121 | 18b6444b | Iustin Pop | noLimit = -1 |
122 | 18b6444b | Iustin Pop | |
123 | 836533fa | Iustin Pop | -- | No limit int value |
124 | 836533fa | Iustin Pop | noLimitInt :: Int |
125 | 836533fa | Iustin Pop | noLimitInt = -1 |
126 | 836533fa | Iustin Pop | |
127 | 9188aeef | Iustin Pop | -- * Initialization functions |
128 | e4f08c46 | Iustin Pop | |
129 | 9188aeef | Iustin Pop | -- | Create a new node. |
130 | 9188aeef | Iustin Pop | -- |
131 | 9188aeef | Iustin Pop | -- The index and the peers maps are empty, and will be need to be |
132 | 9188aeef | Iustin Pop | -- update later via the 'setIdx' and 'buildPeers' functions. |
133 | 1a82215d | Iustin Pop | create :: String -> Double -> Int -> Int -> Double |
134 | 1a82215d | Iustin Pop | -> Int -> Double -> Bool -> Node |
135 | 2727257a | Iustin Pop | create name_init mem_t_init mem_n_init mem_f_init |
136 | 1a82215d | Iustin Pop | dsk_t_init dsk_f_init cpu_t_init offline_init = |
137 | 2180829f | Iustin Pop | Node { name = name_init |
138 | 2180829f | Iustin Pop | , tMem = mem_t_init |
139 | 2180829f | Iustin Pop | , nMem = mem_n_init |
140 | 2180829f | Iustin Pop | , fMem = mem_f_init |
141 | 2180829f | Iustin Pop | , tDsk = dsk_t_init |
142 | 2180829f | Iustin Pop | , fDsk = dsk_f_init |
143 | 2180829f | Iustin Pop | , tCpu = cpu_t_init |
144 | 2180829f | Iustin Pop | , uCpu = 0 |
145 | 2180829f | Iustin Pop | , pList = [] |
146 | 2180829f | Iustin Pop | , sList = [] |
147 | 2180829f | Iustin Pop | , failN1 = True |
148 | 2180829f | Iustin Pop | , idx = -1 |
149 | 2180829f | Iustin Pop | , peers = PeerMap.empty |
150 | 2180829f | Iustin Pop | , rMem = 0 |
151 | 2180829f | Iustin Pop | , pMem = fromIntegral mem_f_init / mem_t_init |
152 | 2180829f | Iustin Pop | , pDsk = fromIntegral dsk_f_init / dsk_t_init |
153 | 2180829f | Iustin Pop | , pRem = 0 |
154 | 2180829f | Iustin Pop | , pCpu = 0 |
155 | 2180829f | Iustin Pop | , offline = offline_init |
156 | 2180829f | Iustin Pop | , xMem = 0 |
157 | 2180829f | Iustin Pop | , mDsk = noLimit |
158 | 2180829f | Iustin Pop | , mCpu = noLimit |
159 | 2180829f | Iustin Pop | , loDsk = noLimitInt |
160 | 2180829f | Iustin Pop | , hiCpu = noLimitInt |
161 | ee9724b9 | Iustin Pop | , utilPool = T.baseUtil |
162 | 2180829f | Iustin Pop | , utilLoad = T.zeroUtil |
163 | 2180829f | Iustin Pop | } |
164 | e4f08c46 | Iustin Pop | |
165 | e4f08c46 | Iustin Pop | -- | Changes the index. |
166 | 9188aeef | Iustin Pop | -- |
167 | e4f08c46 | Iustin Pop | -- This is used only during the building of the data structures. |
168 | 608efcce | Iustin Pop | setIdx :: Node -> T.Ndx -> Node |
169 | e4f08c46 | Iustin Pop | setIdx t i = t {idx = i} |
170 | e4f08c46 | Iustin Pop | |
171 | 9188aeef | Iustin Pop | -- | Changes the name. |
172 | 9188aeef | Iustin Pop | -- |
173 | 497e30a1 | Iustin Pop | -- This is used only during the building of the data structures. |
174 | 9188aeef | Iustin Pop | setName :: Node -> String -> Node |
175 | 497e30a1 | Iustin Pop | setName t s = t {name = s} |
176 | 497e30a1 | Iustin Pop | |
177 | 9188aeef | Iustin Pop | -- | Sets the offline attribute. |
178 | c2c1ef0c | Iustin Pop | setOffline :: Node -> Bool -> Node |
179 | c2c1ef0c | Iustin Pop | setOffline t val = t { offline = val } |
180 | c2c1ef0c | Iustin Pop | |
181 | 9188aeef | Iustin Pop | -- | Sets the unnaccounted memory. |
182 | 8c5b0a0d | Iustin Pop | setXmem :: Node -> Int -> Node |
183 | 2060348b | Iustin Pop | setXmem t val = t { xMem = val } |
184 | 8c5b0a0d | Iustin Pop | |
185 | 844eff86 | Iustin Pop | -- | Sets the max disk usage ratio |
186 | 844eff86 | Iustin Pop | setMdsk :: Node -> Double -> Node |
187 | 2060348b | Iustin Pop | setMdsk t val = t { mDsk = val, |
188 | 2060348b | Iustin Pop | loDsk = if val == noLimit |
189 | 836533fa | Iustin Pop | then noLimitInt |
190 | 2060348b | Iustin Pop | else floor (val * tDsk t) } |
191 | 844eff86 | Iustin Pop | |
192 | 844eff86 | Iustin Pop | -- | Sets the max cpu usage ratio |
193 | 844eff86 | Iustin Pop | setMcpu :: Node -> Double -> Node |
194 | 2060348b | Iustin Pop | setMcpu t val = t { mCpu = val, hiCpu = floor (val * tCpu t) } |
195 | 844eff86 | Iustin Pop | |
196 | e4f08c46 | Iustin Pop | -- | Computes the maximum reserved memory for peers from a peer map. |
197 | e4f08c46 | Iustin Pop | computeMaxRes :: PeerMap.PeerMap -> PeerMap.Elem |
198 | 9f6dcdea | Iustin Pop | computeMaxRes = PeerMap.maxElem |
199 | e4f08c46 | Iustin Pop | |
200 | e4f08c46 | Iustin Pop | -- | Builds the peer map for a given node. |
201 | 9cf4267a | Iustin Pop | buildPeers :: Node -> Instance.List -> Node |
202 | 9cf4267a | Iustin Pop | buildPeers t il = |
203 | e4f08c46 | Iustin Pop | let mdata = map |
204 | e4f08c46 | Iustin Pop | (\i_idx -> let inst = Container.find i_idx il |
205 | 2060348b | Iustin Pop | in (Instance.pNode inst, Instance.mem inst)) |
206 | 2060348b | Iustin Pop | (sList t) |
207 | 17c59f4b | Iustin Pop | pmap = PeerMap.accumArray (+) mdata |
208 | e4f08c46 | Iustin Pop | new_rmem = computeMaxRes pmap |
209 | 2060348b | Iustin Pop | new_failN1 = fMem t <= new_rmem |
210 | 2060348b | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
211 | 2060348b | Iustin Pop | in t {peers=pmap, failN1 = new_failN1, rMem = new_rmem, pRem = new_prem} |
212 | e4f08c46 | Iustin Pop | |
213 | a488a217 | Iustin Pop | -- | Assigns an instance to a node as primary and update the used VCPU |
214 | aa8d2e71 | Iustin Pop | -- count and utilisation data. |
215 | a488a217 | Iustin Pop | setPri :: Node -> Instance.Instance -> Node |
216 | aa8d2e71 | Iustin Pop | setPri t inst = t { pList = Instance.idx inst:pList t |
217 | a488a217 | Iustin Pop | , uCpu = new_count |
218 | aa8d2e71 | Iustin Pop | , pCpu = fromIntegral new_count / tCpu t |
219 | aa8d2e71 | Iustin Pop | , utilLoad = utilLoad t `T.addUtil` Instance.util inst |
220 | aa8d2e71 | Iustin Pop | } |
221 | a488a217 | Iustin Pop | where new_count = uCpu t + Instance.vcpus inst |
222 | 9188aeef | Iustin Pop | |
223 | 9188aeef | Iustin Pop | -- | Assigns an instance to a node as secondary without other updates. |
224 | a488a217 | Iustin Pop | setSec :: Node -> Instance.Instance -> Node |
225 | aa8d2e71 | Iustin Pop | setSec t inst = t { sList = Instance.idx inst:sList t |
226 | aa8d2e71 | Iustin Pop | , utilLoad = old_load { T.dskWeight = T.dskWeight old_load + |
227 | aa8d2e71 | Iustin Pop | T.dskWeight (Instance.util inst) } |
228 | aa8d2e71 | Iustin Pop | } |
229 | aa8d2e71 | Iustin Pop | where old_load = utilLoad t |
230 | 1a82215d | Iustin Pop | |
231 | 9188aeef | Iustin Pop | -- * Update functions |
232 | 9188aeef | Iustin Pop | |
233 | 9188aeef | Iustin Pop | -- | Sets the free memory. |
234 | 9188aeef | Iustin Pop | setFmem :: Node -> Int -> Node |
235 | 9188aeef | Iustin Pop | setFmem t new_mem = |
236 | 2060348b | Iustin Pop | let new_n1 = new_mem <= rMem t |
237 | 2060348b | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
238 | bbd8efd2 | Iustin Pop | in t { fMem = new_mem, failN1 = new_n1, pMem = new_mp } |
239 | 9188aeef | Iustin Pop | |
240 | e4f08c46 | Iustin Pop | -- | Removes a primary instance. |
241 | e4f08c46 | Iustin Pop | removePri :: Node -> Instance.Instance -> Node |
242 | e4f08c46 | Iustin Pop | removePri t inst = |
243 | e4f08c46 | Iustin Pop | let iname = Instance.idx inst |
244 | 2060348b | Iustin Pop | new_plist = delete iname (pList t) |
245 | 2060348b | Iustin Pop | new_mem = fMem t + Instance.mem inst |
246 | 2060348b | Iustin Pop | new_dsk = fDsk t + Instance.dsk inst |
247 | 2060348b | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
248 | 2060348b | Iustin Pop | new_dp = fromIntegral new_dsk / tDsk t |
249 | 2060348b | Iustin Pop | new_failn1 = new_mem <= rMem t |
250 | 2060348b | Iustin Pop | new_ucpu = uCpu t - Instance.vcpus inst |
251 | 2060348b | Iustin Pop | new_rcpu = fromIntegral new_ucpu / tCpu t |
252 | aa8d2e71 | Iustin Pop | new_load = utilLoad t `T.subUtil` Instance.util inst |
253 | bbd8efd2 | Iustin Pop | in t { pList = new_plist, fMem = new_mem, fDsk = new_dsk |
254 | bbd8efd2 | Iustin Pop | , failN1 = new_failn1, pMem = new_mp, pDsk = new_dp |
255 | bbd8efd2 | Iustin Pop | , uCpu = new_ucpu, pCpu = new_rcpu, utilLoad = new_load } |
256 | e4f08c46 | Iustin Pop | |
257 | e4f08c46 | Iustin Pop | -- | Removes a secondary instance. |
258 | e4f08c46 | Iustin Pop | removeSec :: Node -> Instance.Instance -> Node |
259 | e4f08c46 | Iustin Pop | removeSec t inst = |
260 | e4f08c46 | Iustin Pop | let iname = Instance.idx inst |
261 | 2060348b | Iustin Pop | pnode = Instance.pNode inst |
262 | 2060348b | Iustin Pop | new_slist = delete iname (sList t) |
263 | 2060348b | Iustin Pop | new_dsk = fDsk t + Instance.dsk inst |
264 | e4f08c46 | Iustin Pop | old_peers = peers t |
265 | e4f08c46 | Iustin Pop | old_peem = PeerMap.find pnode old_peers |
266 | 9f6dcdea | Iustin Pop | new_peem = old_peem - Instance.mem inst |
267 | e4f08c46 | Iustin Pop | new_peers = PeerMap.add pnode new_peem old_peers |
268 | 2060348b | Iustin Pop | old_rmem = rMem t |
269 | bbd8efd2 | Iustin Pop | new_rmem = if old_peem < old_rmem |
270 | bbd8efd2 | Iustin Pop | then old_rmem |
271 | bbd8efd2 | Iustin Pop | else computeMaxRes new_peers |
272 | 2060348b | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
273 | 2060348b | Iustin Pop | new_failn1 = fMem t <= new_rmem |
274 | 2060348b | Iustin Pop | new_dp = fromIntegral new_dsk / tDsk t |
275 | aa8d2e71 | Iustin Pop | old_load = utilLoad t |
276 | aa8d2e71 | Iustin Pop | new_load = old_load { T.dskWeight = T.dskWeight old_load - |
277 | aa8d2e71 | Iustin Pop | T.dskWeight (Instance.util inst) } |
278 | bbd8efd2 | Iustin Pop | in t { sList = new_slist, fDsk = new_dsk, peers = new_peers |
279 | bbd8efd2 | Iustin Pop | , failN1 = new_failn1, rMem = new_rmem, pDsk = new_dp |
280 | bbd8efd2 | Iustin Pop | , pRem = new_prem, utilLoad = new_load } |
281 | e4f08c46 | Iustin Pop | |
282 | e4f08c46 | Iustin Pop | -- | Adds a primary instance. |
283 | f2280553 | Iustin Pop | addPri :: Node -> Instance.Instance -> T.OpResult Node |
284 | e4f08c46 | Iustin Pop | addPri t inst = |
285 | e4f08c46 | Iustin Pop | let iname = Instance.idx inst |
286 | 2060348b | Iustin Pop | new_mem = fMem t - Instance.mem inst |
287 | 2060348b | Iustin Pop | new_dsk = fDsk t - Instance.dsk inst |
288 | 2060348b | Iustin Pop | new_failn1 = new_mem <= rMem t |
289 | 2060348b | Iustin Pop | new_ucpu = uCpu t + Instance.vcpus inst |
290 | 2060348b | Iustin Pop | new_pcpu = fromIntegral new_ucpu / tCpu t |
291 | 2060348b | Iustin Pop | new_dp = fromIntegral new_dsk / tDsk t |
292 | 2060348b | Iustin Pop | l_cpu = mCpu t |
293 | aa8d2e71 | Iustin Pop | new_load = utilLoad t `T.addUtil` Instance.util inst |
294 | c43c3354 | Iustin Pop | in if new_mem <= 0 then T.OpFail T.FailMem |
295 | 2060348b | Iustin Pop | else if new_dsk <= 0 || mDsk t > new_dp then T.OpFail T.FailDisk |
296 | 9f6dcdea | Iustin Pop | else if new_failn1 && not (failN1 t) then T.OpFail T.FailMem |
297 | c43c3354 | Iustin Pop | else if l_cpu >= 0 && l_cpu < new_pcpu then T.OpFail T.FailCPU |
298 | c43c3354 | Iustin Pop | else |
299 | 2060348b | Iustin Pop | let new_plist = iname:pList t |
300 | 2060348b | Iustin Pop | new_mp = fromIntegral new_mem / tMem t |
301 | bbd8efd2 | Iustin Pop | r = t { pList = new_plist, fMem = new_mem, fDsk = new_dsk |
302 | bbd8efd2 | Iustin Pop | , failN1 = new_failn1, pMem = new_mp, pDsk = new_dp |
303 | bbd8efd2 | Iustin Pop | , uCpu = new_ucpu, pCpu = new_pcpu, utilLoad = new_load } |
304 | c43c3354 | Iustin Pop | in T.OpGood r |
305 | e4f08c46 | Iustin Pop | |
306 | e4f08c46 | Iustin Pop | -- | Adds a secondary instance. |
307 | f2280553 | Iustin Pop | addSec :: Node -> Instance.Instance -> T.Ndx -> T.OpResult Node |
308 | e4f08c46 | Iustin Pop | addSec t inst pdx = |
309 | e4f08c46 | Iustin Pop | let iname = Instance.idx inst |
310 | e4f08c46 | Iustin Pop | old_peers = peers t |
311 | 2060348b | Iustin Pop | old_mem = fMem t |
312 | 2060348b | Iustin Pop | new_dsk = fDsk t - Instance.dsk inst |
313 | e4f08c46 | Iustin Pop | new_peem = PeerMap.find pdx old_peers + Instance.mem inst |
314 | e4f08c46 | Iustin Pop | new_peers = PeerMap.add pdx new_peem old_peers |
315 | 2060348b | Iustin Pop | new_rmem = max (rMem t) new_peem |
316 | 2060348b | Iustin Pop | new_prem = fromIntegral new_rmem / tMem t |
317 | c43c3354 | Iustin Pop | new_failn1 = old_mem <= new_rmem |
318 | 2060348b | Iustin Pop | new_dp = fromIntegral new_dsk / tDsk t |
319 | aa8d2e71 | Iustin Pop | old_load = utilLoad t |
320 | aa8d2e71 | Iustin Pop | new_load = old_load { T.dskWeight = T.dskWeight old_load + |
321 | aa8d2e71 | Iustin Pop | T.dskWeight (Instance.util inst) } |
322 | 2060348b | Iustin Pop | in if new_dsk <= 0 || mDsk t > new_dp then T.OpFail T.FailDisk |
323 | 9f6dcdea | Iustin Pop | else if new_failn1 && not (failN1 t) then T.OpFail T.FailMem |
324 | 2060348b | Iustin Pop | else let new_slist = iname:sList t |
325 | bbd8efd2 | Iustin Pop | r = t { sList = new_slist, fDsk = new_dsk |
326 | bbd8efd2 | Iustin Pop | , peers = new_peers, failN1 = new_failn1 |
327 | bbd8efd2 | Iustin Pop | , rMem = new_rmem, pDsk = new_dp |
328 | bbd8efd2 | Iustin Pop | , pRem = new_prem, utilLoad = new_load } |
329 | bbd8efd2 | Iustin Pop | in T.OpGood r |
330 | e4f08c46 | Iustin Pop | |
331 | fe3d6f02 | Iustin Pop | -- * Stats functions |
332 | fe3d6f02 | Iustin Pop | |
333 | fe3d6f02 | Iustin Pop | -- | Computes the amount of available disk on a given node |
334 | fe3d6f02 | Iustin Pop | availDisk :: Node -> Int |
335 | fe3d6f02 | Iustin Pop | availDisk t = |
336 | 2060348b | Iustin Pop | let _f = fDsk t |
337 | 2060348b | Iustin Pop | _l = loDsk t |
338 | fe3d6f02 | Iustin Pop | in |
339 | fe3d6f02 | Iustin Pop | if _l == noLimitInt |
340 | fe3d6f02 | Iustin Pop | then _f |
341 | fe3d6f02 | Iustin Pop | else if _f < _l |
342 | fe3d6f02 | Iustin Pop | then 0 |
343 | fe3d6f02 | Iustin Pop | else _f - _l |
344 | fe3d6f02 | Iustin Pop | |
345 | 9188aeef | Iustin Pop | -- * Display functions |
346 | 01f6a5d2 | Iustin Pop | |
347 | c5f7412e | Iustin Pop | showField :: Node -> String -> String |
348 | c5f7412e | Iustin Pop | showField t field = |
349 | c5f7412e | Iustin Pop | case field of |
350 | c5f7412e | Iustin Pop | "name" -> name t |
351 | c5f7412e | Iustin Pop | "status" -> if offline t then "-" |
352 | c5f7412e | Iustin Pop | else if failN1 t then "*" else " " |
353 | c5f7412e | Iustin Pop | "tmem" -> printf "%5.0f" $ tMem t |
354 | c5f7412e | Iustin Pop | "nmem" -> printf "%5d" $ nMem t |
355 | c5f7412e | Iustin Pop | "xmem" -> printf "%5d" $ xMem t |
356 | c5f7412e | Iustin Pop | "fmem" -> printf "%5d" $ fMem t |
357 | c5f7412e | Iustin Pop | "imem" -> printf "%5d" imem |
358 | c5f7412e | Iustin Pop | "rmem" -> printf "%5d" $ rMem t |
359 | c5f7412e | Iustin Pop | "tdsk" -> printf "%5.0f" $ tDsk t / 1024 |
360 | c5f7412e | Iustin Pop | "fdsk" -> printf "%5d" $ fDsk t `div` 1024 |
361 | c5f7412e | Iustin Pop | "tcpu" -> printf "%4.0f" $ tCpu t |
362 | c5f7412e | Iustin Pop | "ucpu" -> printf "%4d" $ uCpu t |
363 | c5f7412e | Iustin Pop | "plist" -> printf "%3d" $ length (pList t) |
364 | c5f7412e | Iustin Pop | "slist" -> printf "%3d" $ length (sList t) |
365 | c5f7412e | Iustin Pop | "pfmem" -> printf "%6.4f" $ pMem t |
366 | c5f7412e | Iustin Pop | "pfdsk" -> printf "%6.4f" $ pDsk t |
367 | c5f7412e | Iustin Pop | "rcpu" -> printf "%5.2f" $ pCpu t |
368 | c5f7412e | Iustin Pop | "cload" -> printf "%5.3f" uC |
369 | c5f7412e | Iustin Pop | "mload" -> printf "%5.3f" uM |
370 | c5f7412e | Iustin Pop | "dload" -> printf "%5.3f" uD |
371 | c5f7412e | Iustin Pop | "nload" -> printf "%5.3f" uN |
372 | c5f7412e | Iustin Pop | _ -> printf "<unknown field>" |
373 | c5f7412e | Iustin Pop | where |
374 | c5f7412e | Iustin Pop | T.DynUtil { T.cpuWeight = uC, T.memWeight = uM, |
375 | c5f7412e | Iustin Pop | T.dskWeight = uD, T.netWeight = uN } = utilLoad t |
376 | c5f7412e | Iustin Pop | imem = truncate (tMem t) - nMem t - xMem t - fMem t |
377 | c5f7412e | Iustin Pop | |
378 | c5f7412e | Iustin Pop | |
379 | e4f08c46 | Iustin Pop | -- | String converter for the node list functionality. |
380 | c5f7412e | Iustin Pop | list :: Node -> [String] |
381 | c5f7412e | Iustin Pop | list t = map (showField t) |
382 | c5f7412e | Iustin Pop | [ "status", "name", "tmem", "nmem", "imem", "xmem", "fmem" |
383 | c5f7412e | Iustin Pop | , "rmem", "tdsk", "fdsk", "tcpu", "ucpu", "plist", "slist" |
384 | c5f7412e | Iustin Pop | , "pfmem", "pfdsk", "rcpu" |
385 | c5f7412e | Iustin Pop | , "cload", "mload", "dload", "nload" ] |