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#!/usr/bin/env python
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#---------------------------------------------------------------------------------------------------
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# Script to automatically download a MIT dataset to our local cluster
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#
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# The download of the MIT dataset is organized in accordance with the dataset production logic. In
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# general it is allowed to download the dataset from any location of a properly configured storage
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# element. The script will do all most obvious tests to ensure efficient and safe download. For
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# performance reason a checksum is not calculated. This ommission is considered completely safe as
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# failures will be identified in the analysis phase and the rare occasions will be more effective to
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# fix by hand.
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#
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# At present the download proceeds in one thread (one file at a time) which for performance reasons
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# might not be optimal.
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#
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# Author: C.Paus (July 1, 2008)
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#---------------------------------------------------------------------------------------------------
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# Missing but desired features:
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# + accounting of size of each file
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# + accounting of locally available files (avoid copying already existing files)
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# + determine full list of files before starting to copy
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# + minimal success check of the copy
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# + calculate total data volume (to copy, already copied etc.)
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# + add feature to check the castor status
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# - add time estimates and progressions for copies
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# - multi downloads to enhance performance
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#---------------------------------------------------------------------------------------------------
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import os,sys,getopt,re,string
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def Seconds():
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for secs in os.popen('date +%s').readlines():
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secs = int(secs[:-1])
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return secs
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def InSkipList(file,list):
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for entry in list:
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if entry == file:
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return True
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return False
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def DecodeSrmLs(line):
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line = line.strip()
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f = line.split(" ")
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size = f[0]
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f = f[1].split("/")
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file = f.pop()
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list = [ size, file ]
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return list
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def DecodeRfDir(line):
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line = line.strip()
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f = line.split(" ")
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file = f.pop()
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size = f[4]
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list = [ size, file ]
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return list
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def BuildFileList(cmd):
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isSrm = 1
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f = cmd.split(" ")
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if f[0] == 'rfdir':
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isSrm = 0
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fileList = {}
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if debug == 1:
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print ' Debug:: list: ' + cmd
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for line in os.popen(cmd).readlines(): # run command
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line = line[:-1] # strip '\n'
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#print ' Line: ' + line
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f = line.split(" ")
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##if isSrm == 1:
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## f = DecodeSrmLs(line)
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##else:
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## f = DecodeRfDir(line)
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size = f[0]
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file = f[1]
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f = file.split("/")
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file = f[-1]
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if debug == 1:
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print ' Debug:: adding: ' + file + ' with size ' + size
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fileList[file] = int(size)
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return fileList
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def BuildStagedFileList(storagePath,allFileList,cacheFile):
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# initialize the basics
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fileList = {}
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f = storagePath.split("=");
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rfPath = f[-1]
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# if this is not castor, trick it and mark them as staged
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if not (re.search('/castor/',rfPath)):
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for file, size in allFileList.iteritems():
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fileList[file] = 'STAGED'
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return fileList
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# here we deal with castor
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if debug == 1:
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print ' Debug:: rfpath: ' + rfPath
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if os.path.exists(cacheFile) and noCache == 0:
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print ' Using the cached stager queries at ' + cacheFile
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for file, size in allFileList.iteritems():
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fullFile = rfPath + '/' + file
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if debug == 1:
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print ' Debug:: full file name: ' + fullFile
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if os.path.exists(cacheFile) and noCache == 0:
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cmd = 'grep ' + file + ' ' + cacheFile
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else:
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cmd = 'stager_qry -M ' + fullFile
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fileList[file] = 'undefined'
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for line in os.popen(cmd).readlines(): # run command
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line = line[:-1]
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f = line.split(" ")
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if f[0] == fullFile:
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f = line.split(" ")
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status = f[-1]
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fileList[file] = status
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return fileList
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def CacheStagedFileList(cacheFile,storagePath,stagedFileList):
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print ' Caching stager query status to ' + cacheFile
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f = storagePath.split("=");
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rfPath = f[-1]
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fileOutput = open(cacheFile,'w')
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for file, status in stagedFileList.iteritems():
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line = rfPath + '/' + file + ' xyz@castorns ' + status + '\n'
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fileOutput.write(line)
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fileOutput.close()
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def CopyFile(storageEle,storagePath,storageUrl,file,localDir):
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deltaT = 0
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print ' working on file: ' + file + ' to ' + localDir + \
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' (size: %d MB) '%(int(size)/1024/1024)
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if storageEle == 'srm-cms.cern.ch':
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f = storagePath.split("=");
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rfPath = f[-1]
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cpy = 'rfcp ' + rfPath + '/' + file + ' ' + localPath + '/' \
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+ mitCfg + '/' + version + '/' + mitDataset + '/' + file
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#print ' using rfcp.... ' + cpy
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#sys.exit(0)
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else:
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#storageUrl = 'srm://' + storageEle + ':8443' + storagePath
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cpy = 'lcg-cp ' + storageUrl + '/' + file + ' file:////' + localPath + '/' \
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+ mitCfg + '/' + version + '/' + mitDataset + '/' + file
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# Check whether the file size make sense (zero length files are probably not yet ready to
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# copy and will not be transfered
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if size < 1:
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print ' WARNING - file size is <1b. Probably this file is not yet ready. Stop copy.'
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else:
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if debug == 1:
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print ' Debug:: copy: ' + cpy
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start = Seconds()
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status = os.system(cpy)
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end = Seconds()
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deltaT = end - start
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return deltaT
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def StageFile(storagePath,storageUrl,file):
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print ' staging in file: ' + file
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if storageEle == 'srm-cms.cern.ch':
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f = storagePath.split("=");
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rfPath = f[-1]
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stg = 'stager_get -M ' + rfPath + '/' + file
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else:
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#storageUrl = 'srm://' + storageEle + ':8443' + storagePath
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stg = 'echo lcg-cp ' + storageUrl + '/' + file + ' file:////' + localPath + '/' \
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+ mitCfg + '/' + version + '/' + mitDataset + '/' + file
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if debug == 1:
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print ' Debug:: stage: ' + stg
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status = os.system(stg)
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#===================================================================================================
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# Main starts here
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#===================================================================================================
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# Define string to explain usage of the script
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usage = "Usage: downloadSample.py --cmsDataset=<name> | --mitDataset=<name>\n"
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usage += " --mitCfg=<name>\n"
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usage += " --version=<version>\n"
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usage += " --cmssw=<name>\n"
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usage += " --localStorageUrl=<name>\n"
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usage += " --localPath=<dir>\n"
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usage += " --skip=<file list>\n"
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usage += " --backward\n"
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usage += " --debug\n"
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usage += " --help\n"
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# Define the valid options which can be specified and check out the command line
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valid = ['cmsDataset=','mitDataset=','mitCfg=','version=','cmssw=','pattern=','localStorageUrl=',
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'localPath=','noCache','skip=',
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'forceCopy','backward',
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'debug','help']
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try:
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opts, args = getopt.getopt(sys.argv[1:], "", valid)
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except getopt.GetoptError, ex:
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print usage
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print str(ex)
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sys.exit(1)
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# --------------------------------------------------------------------------------------------------
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# Get all parameters for the production
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# --------------------------------------------------------------------------------------------------
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# Set defaults for each option
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cmsDataset = None
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mitDataset = None
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skip = ''
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skipList = []
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mitCfg = 'filler'
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version = '012'
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cmssw = ''
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blockLocal = 0
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localStorageUrl = ''
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localPath = '/server/02b/mitprod'
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pattern = ''
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noCache = 0
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backward = ''
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forceCopy = False
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debug = 0
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cmsswCfg = 'cmssw.cfg'
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# Read new values from the command line
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for opt, arg in opts:
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if opt == '--help':
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print usage
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sys.exit(0)
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if opt == '--cmsDataset':
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cmsDataset = arg
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if opt == '--mitDataset':
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mitDataset = arg
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if opt == '--mitCfg':
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mitCfg = arg
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if opt == '--version':
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version = arg
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if opt == '--cmssw':
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cmssw = arg
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if opt == '--pattern':
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pattern = arg
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if opt == '--localStorageUrl':
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localStorageUrl = arg
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if opt == '--localPath':
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blockLocal = 1
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localPath = arg
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if opt == '--skip':
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skip = arg
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skipList = skip.split(',')
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if opt == '--noCache':
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noCache = 1
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if opt == '--backward':
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backward = ' -r '
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if opt == '--forceCopy':
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forceCopy = True
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if opt == '--debug':
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debug = 1
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# Deal with obvious problems
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if cmsDataset == None and mitDataset == None:
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cmd = '--cmsDataset option not provided. This is required.'
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raise RuntimeError, cmd
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crabFile = mitCfg + '/' + version + '/' + 'crab.cfg'
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if not os.path.exists(crabFile):
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cmd = 'Crab file not found: %s' % crabFile
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raise RuntimeError, cmd
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cmsswFile = mitCfg + '/' + version + '/' + cmsswCfg
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if not os.path.exists(cmsswFile):
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cmd = 'Cmssw file not found: %s' % cmsswFile
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cmsswCfg = 'cmssw.py'
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cmsswFile = mitCfg + '/' + version + '/' + cmsswCfg
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if not os.path.exists(cmsswFile):
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cmd = 'Cmssw file not found: %s' % cmsswFile
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cmd = ' XXXX ERROR no valid configuration found XXXX'
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raise RuntimeError, cmd
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# Resolve the other mitCfg parameters from the configuration file
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cmd = 'cat ' + mitCfg + '/' + version + '/' + 'Productions'
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if cmssw != '':
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cmd = cmd + '.' + cmssw
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join = 0
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if cmsDataset == None:
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cmsDataset = ''
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else:
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mitDataset = ''
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fullLine = ''
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bSlash = '\\';
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for line in os.popen(cmd).readlines(): # run command
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line = line[:-1]
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#print 'Line: "' + line + '"'
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# get ride of empty or commented lines
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if line == '' or line[0] == '#':
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continue
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# join lines
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if join == 1:
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fullLine += line
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else:
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fullLine = line
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# determine if finished or more is coming
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if fullLine[-1] == bSlash:
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join = 1
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fullLine = fullLine[:-1]
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else:
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join = 0
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# test whether there is a directory
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names = fullLine.split() # splitting every blank
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#print "FullLine: " + fullLine
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#print "Datasets: " + mitDataset + ' -> ' + cmsDataset + "\n"
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if names[0] == cmsDataset:
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mitDataset = names[1] # this is the equivalent MIT name of the dataset
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nevents = int(names[2]) # number of events to be used in the production
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if names[4] != "-" and blockLocal == 0:
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localPath = names[4]
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#print "\n Sample Info: " + fullLine + "\n"
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#print "\n Local path : " + localPath + ' -> ' + names[4] + "\n"
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if names[1] == mitDataset:
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cmsDataset = names[0] # this is the equivalent CMS name of the dataset
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nevents = int(names[2]) # number of events to be used in the production
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if names[4] != "-" and blockLocal == 0:
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localPath = names[4]
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#print "\n Sample Info: " + fullLine + "\n"
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#print "\n Local path : " + localPath + ' -> ' + names[4] + "\n"
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if mitDataset == "":
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print "ERROR - dataset not defined."
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sys.exit(0)
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#cmd = 'grep ' + cmsDataset + ' ' + mitCfg + '/' + version + '/' + 'Productions'
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#for file in os.popen(cmd).readlines(): # run command
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# line = file[:-1] # strip '\n'
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# # test whether there is a directory
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# names = line.split() # splitting every blank
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# mitDataset = names[1] # this is the equivalent MIT name of the dataset
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# nevents = int(names[2]) # number of events to be used in the production
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# Say what we do now
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print '\n Preparing dataset for transfer: ' + cmsDataset + ' [MIT: ' + mitDataset + ']\n'
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# --------------------------------------------------------------------------------------------------
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# Deal with storage element area
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# --------------------------------------------------------------------------------------------------
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pMitDset = re.compile('XX-MITDATASET-XX')
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pMitCfg = re.compile('XX-MITCFG-XX')
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pMitVers = re.compile('XX-MITVERSION-XX')
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# find the forseen storage place
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crabFile = mitCfg + '/' + version + '/' + 'crab.cfg'
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cmd = 'grep ^storage_element ' + crabFile
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for file in os.popen(cmd).readlines(): # run command
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line = file[:-1] # strip '\n'
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# decode the storage element name
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names = line.split("=") # splitting every '='
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storageEle = names.pop()
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storageEle = re.sub("\s", "",storageEle)
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# Compile search and replacement sequences just for the path
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cmd = 'grep ^storage_path ' + crabFile
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for file in os.popen(cmd).readlines(): # run command
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line = file[:-1] # strip '\n'
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line = pMitDset.sub(mitDataset,line);
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line = pMitCfg .sub(mitCfg, line);
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line = pMitVers.sub(version, line);
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# decode the storage directory name
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names = line.split("=") # splitting every '='
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names = names[1:]
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storagePath = "=".join(names)
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storagePath = re.sub("\s", "",storagePath)
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storageUrl = 'srm://' + storageEle + ':8443' + storagePath
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cmd = 'grep ^user_remote_dir ' + crabFile
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for file in os.popen(cmd).readlines(): # run command
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line = file[:-1] # strip '\n'
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line = pMitDset.sub(mitDataset,line);
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line = pMitCfg .sub(mitCfg, line);
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line = pMitVers.sub(version, line);
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# decode the storage directory name
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| 380 |
names = line.split("=") # splitting every '='
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| 381 |
names = names[1:]
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| 382 |
userRemoteDir = "=".join(names)
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| 383 |
userRemoteDir = re.sub("\s","",userRemoteDir)
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| 384 |
userRemoteDir = re.sub("/XX-CRABID-XX","",userRemoteDir)
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| 385 |
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| 386 |
if userRemoteDir != '':
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storagePath += userRemoteDir
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storageUrl += userRemoteDir
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| 389 |
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| 390 |
if localStorageUrl != '':
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storageEle = ''
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| 392 |
storagePath = ''
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| 393 |
storageUrl = localStorageUrl
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| 394 |
|
| 395 |
print ' --> StorageUrl: ' + storageUrl
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| 397 |
#---------------------------------------------------------------------------------------------------
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| 398 |
# create the local storage area
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| 399 |
#---------------------------------------------------------------------------------------------------
|
| 400 |
print ' Make local path: ' + localPath
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| 401 |
localDir = localPath + '/' + mitCfg + '/' + version + '/' + mitDataset
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mkd = 'mkdir -p ' + localDir
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| 403 |
status = os.system(mkd)
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| 404 |
|
| 405 |
if status != 0:
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| 406 |
print ' ERROR - could not create local directory ' + localDir
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sys.exit(1)
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print ' --> LocalDir: ' + localDir
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| 411 |
cmd = 'df --block-size=1 ' + localDir + ' | tr -s \' \' | tail -1'
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| 412 |
for line in os.popen(cmd).readlines(): # run command
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| 413 |
line = line.strip()
|
| 414 |
f = line.split(" ")
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| 415 |
if line[0:0] == '/' or line[0:4] == 'fuse':
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| 416 |
free = int(f[3])
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| 417 |
else:
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| 418 |
free = int(f[2])
|
| 419 |
|
| 420 |
#---------------------------------------------------------------------------------------------------
|
| 421 |
# create a list af all files to be copied
|
| 422 |
#---------------------------------------------------------------------------------------------------
|
| 423 |
cmd = ''
|
| 424 |
f = storagePath.split('=')
|
| 425 |
path = f.pop()
|
| 426 |
cmd = 'list ' + path + ' | grep root | sort ' + backward
|
| 427 |
|
| 428 |
##if storageEle == 'srm.cern.ch' or storageEle == 'srm-cms.cern.ch':
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| 429 |
## cmd = 'rfdir ' + path + ' | grep root | tr -s \' \' | sort ' + backward
|
| 430 |
##else:
|
| 431 |
## cmd = 'list ' + path + ' | grep root | sort ' + backward
|
| 432 |
## #cmd = 'srmls ' + storageUrl + ' | grep root | sort ' + backward
|
| 433 |
|
| 434 |
if pattern != "":
|
| 435 |
cmd += ' | grep ' + pattern
|
| 436 |
|
| 437 |
print ' Find file: ' + cmd
|
| 438 |
cacheFile = '/tmp/.cache_' + mitDataset
|
| 439 |
allFileList = BuildFileList(cmd)
|
| 440 |
stagedFileList = BuildStagedFileList(storagePath,allFileList,cacheFile)
|
| 441 |
cacheStaged = CacheStagedFileList(cacheFile,storagePath,stagedFileList)
|
| 442 |
|
| 443 |
#cmd = 'find ' + localPath + '/' + mitCfg + '/' + version + '/' + mitDataset + \
|
| 444 |
# ' -maxdepth 1 -type f -printf "%s %f\n"'
|
| 445 |
print 'List: ' + cmd
|
| 446 |
cmd = 'list ' + localPath + '/' + mitCfg + '/' + version + '/' + mitDataset + ' | grep root'
|
| 447 |
doneFileList = BuildFileList(cmd)
|
| 448 |
|
| 449 |
#---------------------------------------------------------------------------------------------------
|
| 450 |
# go through the lists: first check files are consistent, then copy the remaining files
|
| 451 |
#---------------------------------------------------------------------------------------------------
|
| 452 |
# initialize data volumes
|
| 453 |
b2G = 1.0/(1024.*1024.*1024)
|
| 454 |
nTotal = 0
|
| 455 |
totalDataVolume = 0
|
| 456 |
nDone = 0
|
| 457 |
doneDataVolume = 0
|
| 458 |
|
| 459 |
for file, size in allFileList.iteritems():
|
| 460 |
nTotal += 1
|
| 461 |
totalDataVolume += size
|
| 462 |
if (file in doneFileList) and (doneFileList[file] == size):
|
| 463 |
nDone += 1
|
| 464 |
doneDataVolume += size
|
| 465 |
|
| 466 |
print ' '
|
| 467 |
print ' Summary of data volume\n'
|
| 468 |
print ' --> number of files to copy: %8d (total: %d) '%(nTotal-nDone,nTotal)
|
| 469 |
print ' --> volume to copy [GB]: %8.2f (total: %.2f) '%(b2G*(totalDataVolume-doneDataVolume), \
|
| 470 |
b2G*totalDataVolume)
|
| 471 |
print ' --> free volume [GB]: %8.2f '%(b2G*free)
|
| 472 |
print ' '
|
| 473 |
|
| 474 |
if free*0.85 < (totalDataVolume-doneDataVolume):
|
| 475 |
print ' ERROR - probably no enough space on volume. See above (some safety assumed)!'
|
| 476 |
sys.exit(1)
|
| 477 |
|
| 478 |
for file, size in doneFileList.iteritems():
|
| 479 |
if file in allFileList:
|
| 480 |
#print ' --> file is done: ' + file
|
| 481 |
if allFileList[file] != size:
|
| 482 |
print ' ERROR - file sizes did not match: ' + file + \
|
| 483 |
' [ local: %10d, remote: %10d ]'%(size,allFileList[file])
|
| 484 |
sys.exit(1)
|
| 485 |
else:
|
| 486 |
print ' ERROR - file from done list is not in the all files list. File: ' + file
|
| 487 |
sys.exit(1)
|
| 488 |
|
| 489 |
totalSizeMb = 0.
|
| 490 |
totalTimeSc = 0.
|
| 491 |
for file, size in allFileList.iteritems():
|
| 492 |
if debug == 1:
|
| 493 |
print ' Debug:: ' + file + ' -> size %d'%size
|
| 494 |
|
| 495 |
totalDataVolume += size
|
| 496 |
if file in doneFileList:
|
| 497 |
print ' --> done, size match: %10d - %s'%(size,file)
|
| 498 |
doneDataVolume = +size
|
| 499 |
else:
|
| 500 |
if not InSkipList(file,skipList):
|
| 501 |
print ' --> copying file: %10d - %s (castor stat: %s)'% \
|
| 502 |
(size,file,stagedFileList[file])
|
| 503 |
if stagedFileList[file] == "STAGED" or forceCopy:
|
| 504 |
|
| 505 |
sizeMb = size/1024./1024.
|
| 506 |
deltaT = CopyFile(storageEle,storagePath,storageUrl,file,localDir)
|
| 507 |
if deltaT > 0:
|
| 508 |
print ' time required [sec]: %7d rate [MB/sec]: %9.3f'%\
|
| 509 |
(deltaT,sizeMb/deltaT)
|
| 510 |
else:
|
| 511 |
print ' time required [sec]: %7d rate [MB/sec]: ?'%(deltaT)
|
| 512 |
totalTimeSc += deltaT
|
| 513 |
totalSizeMb += sizeMb
|
| 514 |
else:
|
| 515 |
print ' skipping file: %s'%(stagedFileList[file])
|
| 516 |
StageFile(storagePath,storageUrl,file)
|
| 517 |
|
| 518 |
else:
|
| 519 |
print ' --> skipping file: %10d - %s'%(size,file)
|
| 520 |
|
| 521 |
print ''
|
| 522 |
if totalTimeSc > 0:
|
| 523 |
print ' Performance: volume copied [GB] %9.3f; time [sec] %9d; -> rate [MB/sec] %9.3f'%\
|
| 524 |
(totalSizeMb/1024.,totalTimeSc,totalSizeMb/totalTimeSc)
|
| 525 |
else:
|
| 526 |
print ' Performance: volume copied [GB] %9.3f; time [sec] %9d; -> rate [MB/sec] ?'%\
|
| 527 |
(totalSizeMb/1024.,totalTimeSc)
|
| 528 |
print ''
|
