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a197a4ce | 1 | // @(#)alimdc:$Name$:$Id$ |
2 | // Author: Fons Rademakers 26/11/99 | |
3 | ||
4 | /************************************************************************** | |
5 | * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. * | |
6 | * * | |
7 | * Author: The ALICE Off-line Project. * | |
8 | * Contributors are mentioned in the code where appropriate. * | |
9 | * * | |
10 | * Permission to use, copy, modify and distribute this software and its * | |
11 | * documentation strictly for non-commercial purposes is hereby granted * | |
12 | * without fee, provided that the above copyright notice appears in all * | |
13 | * copies and that both the copyright notice and this permission notice * | |
14 | * appear in the supporting documentation. The authors make no claims * | |
15 | * about the suitability of this software for any purpose. It is * | |
16 | * provided "as is" without express or implied warranty. * | |
17 | **************************************************************************/ | |
18 | ||
19 | ////////////////////////////////////////////////////////////////////////// | |
20 | // // | |
21 | // AliRawDB // | |
22 | // // | |
23 | ////////////////////////////////////////////////////////////////////////// | |
24 | ||
25 | #include <errno.h> | |
26 | ||
27 | #include <TSystem.h> | |
d21e9888 | 28 | #include <TKey.h> |
a197a4ce | 29 | |
30 | #ifdef ALI_DATE | |
31 | #include "event.h" | |
32 | #endif | |
33 | ||
52f36b9b | 34 | #include "AliESD.h" |
a197a4ce | 35 | #include "AliRawEvent.h" |
36 | #include "AliRawEventHeader.h" | |
b7d09bb3 | 37 | #include "AliStats.h" |
a109e73e | 38 | |
a197a4ce | 39 | #include "AliRawDB.h" |
40 | ||
41 | ||
42 | ClassImp(AliRawDB) | |
43 | ||
44 | ||
45 | //______________________________________________________________________________ | |
a109e73e | 46 | AliRawDB::AliRawDB(AliRawEvent *event, |
a109e73e | 47 | AliESD *esd, |
e10815f1 | 48 | Int_t compress, |
49 | const char* fileName) : | |
50 | fRawDB(NULL), | |
51 | fTree(NULL), | |
52 | fEvent(event), | |
53 | fESDTree(NULL), | |
54 | fESD(esd), | |
55 | fCompress(compress), | |
56 | fMaxSize(-1), | |
57 | fFS1(""), | |
58 | fFS2(""), | |
59 | fDeleteFiles(kFALSE), | |
60 | fStop(kFALSE) | |
a197a4ce | 61 | { |
e10815f1 | 62 | // Create a new raw DB |
a197a4ce | 63 | |
64 | // Consistency check with DATE header file | |
65 | #ifdef ALI_DATE | |
66 | if (fEvent->GetHeader()->HeaderSize() != EVENT_HEAD_BASE_SIZE) { | |
67 | Error("AliRawDB", "inconsistency between DATE and AliRawEvent headers"); | |
68 | MakeZombie(); | |
69 | return; | |
70 | } | |
71 | #endif | |
72 | ||
e10815f1 | 73 | if (fileName) { |
74 | if (!Create(fileName)) | |
a197a4ce | 75 | MakeZombie(); |
76 | } | |
77 | } | |
78 | ||
79 | //______________________________________________________________________________ | |
80 | AliRawDB::AliRawDB(const AliRawDB& rawDB): TObject(rawDB) | |
81 | { | |
82 | // copy constructor | |
83 | ||
84 | Fatal("AliRawDB", "copy constructor not implemented"); | |
85 | } | |
86 | ||
87 | //______________________________________________________________________________ | |
88 | AliRawDB& AliRawDB::operator = (const AliRawDB& /*rawDB*/) | |
89 | { | |
90 | // assignment operator | |
91 | ||
92 | Fatal("operator =", "assignment operator not implemented"); | |
93 | return *this; | |
94 | } | |
95 | ||
96 | //______________________________________________________________________________ | |
97 | Bool_t AliRawDB::FSHasSpace(const char *fs) const | |
98 | { | |
99 | // Check for at least fMaxSize bytes of free space on the file system. | |
100 | // If the space is not available return kFALSE, kTRUE otherwise. | |
101 | ||
102 | Long_t id, bsize, blocks, bfree; | |
103 | ||
104 | if (gSystem->GetFsInfo(fs, &id, &bsize, &blocks, &bfree) == 1) { | |
105 | Error("FSHasSpace", "could not stat file system %s", fs); | |
106 | return kFALSE; | |
107 | } | |
108 | ||
109 | // Leave 5 percent of diskspace free | |
110 | Double_t avail = Double_t(bfree) * 0.95; | |
111 | if (avail*bsize > fMaxSize) | |
112 | return kTRUE; | |
113 | ||
114 | Warning("FSHasSpace", "no space on file system %s", fs); | |
115 | return kFALSE; | |
116 | } | |
117 | ||
118 | //______________________________________________________________________________ | |
119 | const char *AliRawDB::GetFileName() const | |
120 | { | |
121 | // Return filename based on hostname and date and time. This will make | |
122 | // each file unique. Also makes sure (via FSHasSpace()) that there is | |
123 | // enough space on the file system to store the file. Returns 0 in | |
124 | // case of error or interrupt signal. | |
125 | ||
126 | static TString fname; | |
127 | static Bool_t fstoggle = kFALSE; | |
128 | ||
e10815f1 | 129 | TString fs = fstoggle ? fFS2 : fFS1; |
a197a4ce | 130 | TDatime dt; |
131 | ||
132 | TString hostname = gSystem->HostName(); | |
133 | Int_t pos; | |
134 | if ((pos = hostname.Index(".")) != kNPOS) | |
135 | hostname.Remove(pos); | |
136 | ||
137 | if (!FSHasSpace(fs)) { | |
138 | while (1) { | |
139 | fstoggle = !fstoggle; | |
e10815f1 | 140 | fs = fstoggle ? fFS2 : fFS1; |
a197a4ce | 141 | if (FSHasSpace(fs)) break; |
142 | Info("GetFileName", "sleeping 30 seconds before retrying..."); | |
143 | gSystem->Sleep(30000); // sleep for 30 seconds | |
e10815f1 | 144 | if (fStop) return 0; |
a197a4ce | 145 | } |
146 | } | |
147 | ||
148 | fname = fs + "/" + hostname + "_"; | |
149 | fname += dt.GetDate(); | |
150 | fname += "_"; | |
151 | fname += dt.GetTime(); | |
152 | fname += ".root"; | |
153 | ||
154 | fstoggle = !fstoggle; | |
155 | ||
156 | return fname; | |
157 | } | |
158 | ||
159 | //______________________________________________________________________________ | |
e10815f1 | 160 | void AliRawDB::SetFS(const char* fs1, const char* fs2) |
161 | { | |
162 | // set the file system location | |
163 | ||
164 | fFS1 = fs1; | |
165 | if (fs1 && !fFS1.Contains(":")) { | |
166 | gSystem->ResetErrno(); | |
167 | gSystem->MakeDirectory(fs1); | |
168 | if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) { | |
169 | SysError("SetFS", "mkdir %s", fs1); | |
170 | } | |
171 | } | |
172 | ||
173 | fFS2 = fs2; | |
174 | if (fs2) { | |
175 | gSystem->ResetErrno(); | |
176 | gSystem->MakeDirectory(fs2); | |
177 | if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) { | |
178 | SysError("SetFS", "mkdir %s", fs2); | |
179 | } | |
180 | } | |
181 | } | |
182 | ||
183 | //______________________________________________________________________________ | |
184 | Bool_t AliRawDB::Create(const char* fileName) | |
a197a4ce | 185 | { |
186 | // Create a new raw DB. | |
187 | ||
188 | const Int_t kMaxRetry = 200; | |
189 | const Int_t kMaxSleep = 1; // seconds | |
190 | const Int_t kMaxSleepLong = 10; // seconds | |
191 | Int_t retry = 0; | |
192 | ||
193 | again: | |
e10815f1 | 194 | if (fStop) return kFALSE; |
a197a4ce | 195 | |
e10815f1 | 196 | const char *fname = fileName; |
197 | if (!fname) fname = GetFileName(); | |
a197a4ce | 198 | if (!fname) { |
199 | Error("Create", "error getting raw DB file name"); | |
200 | return kFALSE; | |
201 | } | |
202 | ||
203 | retry++; | |
204 | ||
205 | fRawDB = TFile::Open(fname, GetOpenOption(), | |
e10815f1 | 206 | Form("ALICE MDC%d raw DB", kMDC), fCompress, |
a197a4ce | 207 | GetNetopt()); |
208 | if (!fRawDB) { | |
209 | if (retry < kMaxRetry) { | |
210 | Warning("Create", "failure to open file, sleeping %d %s before retrying...", | |
211 | kMaxSleep, kMaxSleep==1 ? "second" : "seconds"); | |
212 | gSystem->Sleep(kMaxSleep*1000); | |
213 | goto again; | |
214 | } | |
215 | Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry); | |
216 | return kFALSE; | |
217 | } | |
218 | if (retry > 1) | |
219 | Warning("Create", "succeeded to open file after %d retries", retry); | |
220 | ||
221 | if (fRawDB->IsZombie()) { | |
222 | if (fRawDB->GetErrno() == ENOSPC || | |
223 | fRawDB->GetErrno() == 1018 || // SECOMERR | |
224 | fRawDB->GetErrno() == 1027) { // SESYSERR | |
225 | fRawDB->ResetErrno(); | |
226 | delete fRawDB; | |
227 | Warning("Create", "file is a zombie (no space), sleeping %d %s before retrying...", | |
228 | kMaxSleepLong, kMaxSleepLong==1 ? "second" : "seconds"); | |
229 | gSystem->Sleep(kMaxSleepLong*1000); // sleep 10 seconds before retrying | |
230 | goto again; | |
231 | } | |
232 | Error("Create", "file %s is zombie", fname); | |
233 | fRawDB->ResetErrno(); | |
234 | delete fRawDB; | |
235 | fRawDB = 0; | |
236 | if (retry < kMaxRetry) { | |
237 | Warning("Create", "file is a zombie, sleeping %d %s before retrying...", | |
238 | kMaxSleep, kMaxSleep==1 ? "second" : "seconds"); | |
239 | gSystem->Sleep(kMaxSleep*1000); | |
240 | goto again; | |
241 | } | |
242 | Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry); | |
243 | return kFALSE; | |
244 | } | |
245 | ||
246 | // Create raw data TTree | |
247 | MakeTree(); | |
248 | ||
249 | return kTRUE; | |
250 | } | |
251 | ||
252 | //______________________________________________________________________________ | |
253 | void AliRawDB::MakeTree() | |
254 | { | |
255 | // Create ROOT Tree object container. | |
256 | ||
e10815f1 | 257 | fTree = new TTree("RAW", Form("ALICE MDC%d raw data tree", kMDC)); |
a197a4ce | 258 | fTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written |
259 | ||
260 | Int_t bufsize = 256000; | |
261 | // splitting 29.6 MB/s, no splitting 35.3 MB/s on P4 2GHz 15k SCSI | |
262 | //Int_t split = 1; | |
263 | Int_t split = 0; | |
264 | fTree->Branch("rawevent", "AliRawEvent", &fEvent, bufsize, split); | |
a109e73e | 265 | |
a109e73e | 266 | // Create tree which will contain the HLT ESD information |
267 | ||
e10815f1 | 268 | if (fESD) { |
269 | fESDTree = new TTree("esdTree", Form("ALICE MDC%d HLT ESD tree", kMDC)); | |
270 | fESDTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written | |
5f42007f | 271 | split = 0; |
e10815f1 | 272 | fESDTree->Branch("ESD", "AliESD", &fESD, bufsize, split); |
273 | } | |
a109e73e | 274 | |
a197a4ce | 275 | } |
276 | ||
277 | //______________________________________________________________________________ | |
278 | void AliRawDB::Close() | |
279 | { | |
280 | // Close raw DB. | |
281 | ||
282 | if (!fRawDB) return; | |
283 | ||
284 | fRawDB->cd(); | |
285 | ||
286 | // Write the tree. | |
287 | fTree->Write(); | |
e10815f1 | 288 | if (fESDTree) fESDTree->Write(); |
a197a4ce | 289 | |
290 | // Close DB, this also deletes the fTree | |
291 | fRawDB->Close(); | |
292 | ||
e10815f1 | 293 | if (fDeleteFiles) { |
a197a4ce | 294 | gSystem->Unlink(fRawDB->GetName()); |
295 | delete fRawDB; | |
296 | fRawDB = 0; | |
297 | return; | |
298 | } | |
299 | ||
300 | // Create semaphore to say this file is finished | |
301 | Int_t tfd = ::creat(Form("%s.done", fRawDB->GetName()), 0644); | |
302 | close(tfd); | |
303 | ||
304 | delete fRawDB; | |
305 | fRawDB = 0; | |
306 | } | |
307 | ||
e10815f1 | 308 | //______________________________________________________________________________ |
309 | Int_t AliRawDB::Fill() | |
310 | { | |
311 | // Fill the trees and return the number of written bytes | |
312 | ||
313 | Double_t bytes = fRawDB->GetBytesWritten(); | |
314 | fTree->Fill(); | |
315 | if (fESDTree) fESDTree->Fill(); | |
316 | return Int_t(fRawDB->GetBytesWritten() - bytes); | |
317 | } | |
318 | ||
d21e9888 | 319 | //______________________________________________________________________________ |
320 | Int_t AliRawDB::GetTotalSize() | |
321 | { | |
322 | // Return the total size of the trees | |
323 | Int_t total = 0; | |
324 | ||
325 | { | |
326 | Int_t skey = 0; | |
327 | TDirectory *dir = fTree->GetDirectory(); | |
328 | if (dir) { | |
329 | TKey *key = dir->GetKey(fTree->GetName()); | |
330 | if (key) skey = key->GetKeylen(); | |
331 | } | |
332 | total += skey; | |
333 | if (fTree->GetZipBytes() > 0) total += fTree->GetTotBytes(); | |
334 | TBuffer b(TBuffer::kWrite,10000); | |
335 | TTree::Class()->WriteBuffer(b,fTree); | |
336 | total += b.Length(); | |
337 | } | |
338 | ||
339 | if(fESDTree) | |
340 | { | |
341 | Int_t skey = 0; | |
342 | TDirectory *dir = fESDTree->GetDirectory(); | |
343 | if (dir) { | |
344 | TKey *key = dir->GetKey(fESDTree->GetName()); | |
345 | if (key) skey = key->GetKeylen(); | |
346 | } | |
347 | total += skey; | |
348 | if (fESDTree->GetZipBytes() > 0) total += fESDTree->GetTotBytes(); | |
349 | TBuffer b(TBuffer::kWrite,10000); | |
350 | TTree::Class()->WriteBuffer(b,fESDTree); | |
351 | total += b.Length(); | |
352 | } | |
353 | ||
354 | return total; | |
355 | } | |
356 | ||
b7d09bb3 | 357 | //______________________________________________________________________________ |
358 | void AliRawDB::WriteStats(AliStats* stats) | |
359 | { | |
360 | // Write stats to raw DB, local run DB and global MySQL DB. | |
361 | ||
362 | AliRawEventHeader &header = *GetEvent()->GetHeader(); | |
363 | ||
364 | // Write stats into RawDB | |
365 | TDirectory *ds = gDirectory; | |
366 | GetDB()->cd(); | |
367 | stats->SetEvents(GetEvents()); | |
368 | stats->SetLastId(header.GetRunNumber(), header.GetEventInRun()); | |
369 | stats->SetFileSize(GetBytesWritten()); | |
370 | stats->SetCompressionFactor(GetCompressionFactor()); | |
371 | stats->SetEndTime(); | |
372 | stats->Write("stats"); | |
373 | ds->cd(); | |
374 | } | |
375 | ||
a197a4ce | 376 | //______________________________________________________________________________ |
e10815f1 | 377 | Bool_t AliRawDB::NextFile(const char* fileName) |
a197a4ce | 378 | { |
379 | // Close te current file and open a new one. | |
380 | // Returns kFALSE in case opening failed. | |
381 | ||
382 | Close(); | |
383 | ||
e10815f1 | 384 | if (!Create(fileName)) return kFALSE; |
a197a4ce | 385 | return kTRUE; |
386 | } | |
387 | ||
388 | //______________________________________________________________________________ | |
389 | Float_t AliRawDB::GetCompressionFactor() const | |
390 | { | |
391 | // Return compression factor. | |
392 | ||
393 | if (fTree->GetZipBytes() == 0.) | |
394 | return 1.0; | |
395 | else | |
396 | return fTree->GetTotBytes()/fTree->GetZipBytes(); | |
397 | } |