def testBasics(self):
cache = MemoryCache(1, [])
self.assertItemsEqual(cache.getCache(), [])
cache.setCache(["item1", "item2"])
self.assertItemsEqual(cache.getCache(), ["item1", "item2"])
# wait for cache to expiry, wait for 2 secs
sleep(2)
self.assertRaises(MemoryCacheException, cache.getCache)
cache.setCache(["item4"])
# and the cache is alive again
self.assertItemsEqual(cache.getCache(), ["item4"])
def testCacheDict(self):
cache = MemoryCache(2, {})
self.assertCountEqual(cache.getCache(), {}) if PY3 else self.assertItemsEqual(cache.getCache(), {})
cache.setCache({"item1": 11, "item2": 22})
self.assertCountEqual(cache.getCache(), {"item1": 11, "item2": 22}) if PY3 else self.assertItemsEqual(cache.getCache(), {"item1": 11, "item2": 22})
cache.addItemToCache({"item3": 33})
self.assertCountEqual(cache.getCache(), {"item1": 11, "item2": 22, "item3": 33}) if PY3 else self.assertItemsEqual(cache.getCache(), {"item1": 11, "item2": 22, "item3": 33})
self.assertTrue("item2" in cache)
self.assertFalse("item222" in cache)
# test exceptions
self.assertRaises(TypeError, cache.addItemToCache, "item4")
self.assertRaises(TypeError, cache.addItemToCache, ["item4"])
def testCacheList(self):
cache = MemoryCache(2, [])
self.assertCountEqual(cache.getCache(), []) if PY3 else self.assertItemsEqual(cache.getCache(), [])
cache.setCache(["item1", "item2"])
self.assertCountEqual(cache.getCache(), ["item1", "item2"]) if PY3 else self.assertItemsEqual(cache.getCache(), ["item1", "item2"])
cache.addItemToCache("item3")
self.assertCountEqual(cache.getCache(), ["item1", "item2", "item3"]) if PY3 else self.assertItemsEqual(cache.getCache(), ["item1", "item2", "item3"])
cache.addItemToCache(["item4"])
self.assertCountEqual(cache.getCache(), ["item1", "item2", "item3", "item4"]) if PY3 else self.assertItemsEqual(cache.getCache(), ["item1", "item2", "item3", "item4"])
cache.addItemToCache(set(["item5"]))
self.assertCountEqual(cache.getCache(), ["item1", "item2", "item3", "item4", "item5"]) if PY3 else self.assertItemsEqual(cache.getCache(), ["item1", "item2", "item3", "item4", "item5"])
self.assertTrue("item2" in cache)
self.assertFalse("item222" in cache)
def testCacheSet(self):
cache = MemoryCache(2, set())
self.assertItemsEqual(cache.getCache(), set())
cache.setCache(set(["item1", "item2"]))
self.assertItemsEqual(cache.getCache(), ["item1", "item2"])
cache.addItemToCache("item3")
self.assertItemsEqual(cache.getCache(), ["item1", "item2", "item3"])
cache.addItemToCache(["item4"])
self.assertItemsEqual(cache.getCache(),
["item1", "item2", "item3", "item4"])
cache.addItemToCache(set(["item5"]))
self.assertItemsEqual(cache.getCache(),
["item1", "item2", "item3", "item4", "item5"])
self.assertTrue("item2" in cache)
self.assertFalse("item222" in cache)
class RucioInjectorPoller(BaseWorkerThread):
"""
_RucioInjectorPoller_
Poll the DBSBuffer database and inject files as they are created.
The logic of this component is:
* create a rucio container (or reuse a pre-existent one)
* create a CMS block (or reuse a pre-existent one), block gets automatically attached
* create file/replicas, which get automatically attached to its block as well
* now create a CMS block rule to protect this data
* if the block has been inserted into DBS, close the block in Rucio
In addition to that, it has logic for rucio container subscription (rule creation),
and block rule removal. Those follow a different polling cycle though.
"""
def __init__(self, config):
"""
___init___
Initialise class members
"""
BaseWorkerThread.__init__(self)
# dataset rule creation has a larger polling cycle
self.pollRules = config.RucioInjector.pollIntervalRules
self.lastRulesExecTime = 0
self.createBlockRules = config.RucioInjector.createBlockRules
self.containerDiskRuleParams = config.RucioInjector.containerDiskRuleParams
self.containerDiskRuleRSEExpr = config.RucioInjector.containerDiskRuleRSEExpr
if config.RucioInjector.metaDIDProject not in RUCIO_VALID_PROJECT:
msg = "Component configured with an invalid 'project' DID: %s"
raise RucioInjectorException(msg %
config.RucioInjector.metaDIDProject)
self.metaDIDProject = dict(project=config.RucioInjector.metaDIDProject)
# setup cache for container and blocks (containers can be much longer, make 6 days now)
self.containersCache = MemoryCache(
config.RucioInjector.cacheExpiration * 3, set())
self.blocksCache = MemoryCache(config.RucioInjector.cacheExpiration,
set())
self.scope = getattr(config.RucioInjector, "scope", "cms")
self.rucioAcct = config.RucioInjector.rucioAccount
self.rucio = Rucio(acct=self.rucioAcct,
hostUrl=config.RucioInjector.rucioUrl,
authUrl=config.RucioInjector.rucioAuthUrl,
configDict={'logger': self.logger})
# metadata dictionary information to be added to block/container rules
# cannot be a python dictionary, but a JSON string instead
self.metaData = json.dumps(
dict(agentHost=config.Agent.hostName,
userAgent=config.Agent.agentName))
self.testRSEs = config.RucioInjector.RSEPostfix
self.filesToRecover = []
# output data placement has a different behaviour between T0 and Production agents
if hasattr(config, "Tier0Feeder"):
logging.info("RucioInjector running on a T0 WMAgent")
self.isT0agent = True
else:
self.isT0agent = False
logging.info("Component configured to create block rules: %s",
self.createBlockRules)
def setup(self, parameters):
"""
_setup_
Create DAO Factory and setup some DAO.
"""
myThread = threading.currentThread()
daofactory = DAOFactory(package="WMComponent.RucioInjector.Database",
logger=self.logger,
dbinterface=myThread.dbi)
self.getUninjected = daofactory(classname="GetUninjectedFiles")
self.getMigrated = daofactory(classname="GetMigratedBlocks")
self.getUnsubscribedBlocks = daofactory(
classname="GetUnsubscribedBlocks")
self.setBlockRules = daofactory(classname="SetBlocksRule")
self.findDeletableBlocks = daofactory(classname="GetDeletableBlocks")
self.markBlocksDeleted = daofactory(classname="MarkBlocksDeleted")
self.getUnsubscribedDsets = daofactory(
classname="GetUnsubscribedDatasets")
self.markSubscribed = daofactory(classname="MarkDatasetSubscribed")
daofactory = DAOFactory(package="WMComponent.DBS3Buffer",
logger=self.logger,
dbinterface=myThread.dbi)
self.setStatus = daofactory(classname="DBSBufferFiles.SetPhEDExStatus")
self.setBlockClosed = daofactory(classname="SetBlockClosed")
@timeFunction
def algorithm(self, parameters):
"""
_algorithm_
Poll the database for uninjected files and inject them into Rucio.
"""
logging.info("Running Rucio injector poller algorithm...")
try:
# files that failed to get their status updated in dbsbuffer
self._updateLFNState(self.filesToRecover, recovery=True)
# get dbsbuffer_file.in_phedex = 0
uninjectedFiles = self.getUninjected.execute()
# create containers in rucio (and update local cache)
containersAdded = self.insertContainers(uninjectedFiles)
if self.containersCache.isCacheExpired():
self.containersCache.setCache(containersAdded)
else:
self.containersCache.addItemToCache(containersAdded)
# create blocks. Only update the cache once a rule gets created...
blocksAdded = self.insertBlocks(uninjectedFiles)
if self.blocksCache.isCacheExpired():
self.blocksCache.setCache(blocksAdded)
else:
self.blocksCache.addItemToCache(blocksAdded)
# create file replicas
self.insertReplicas(uninjectedFiles)
# now close blocks already uploaded to DBS
self.closeBlocks()
if self.lastRulesExecTime + self.pollRules <= int(time.time()):
self.insertContainerRules()
self.insertBlockRules()
self.deleteBlocks()
except Exception as ex:
msg = "Caught unexpected exception in RucioInjector. Details:\n%s" % str(
ex)
logging.exception(msg)
raise RucioInjectorException(msg)
return
def insertContainers(self, uninjectedData):
"""
This method will insert containers into Rucio, provided they cannot be found in
the local cache.
:param uninjectedData: same data as it's returned from the uninjectedFiles
:return: set of containers successfully inserted into Rucio
"""
logging.info("Preparing to insert containers into Rucio...")
newContainers = set()
for location in uninjectedData:
for container in uninjectedData[location]:
# same container can be at multiple locations
if container not in self.containersCache and container not in newContainers:
if self.rucio.createContainer(container,
meta=self.metaDIDProject):
logging.info("Container %s inserted into Rucio",
container)
newContainers.add(container)
else:
logging.error("Failed to create container: %s",
container)
logging.info("Successfully inserted %d containers into Rucio",
newContainers)
return newContainers
def insertBlocks(self, uninjectedData):
"""
This method will insert blocks into Rucio and attach them to their correspondent
containers, when attaching this block, we also need to provide the RSE that it
will be available.
:param uninjectedData: same data as it's returned from the uninjectedFiles
:return: a dictionary of successfully inserted blocks and their correspondent location
"""
logging.info("Preparing to insert blocks into Rucio...")
newBlocks = set()
for location in uninjectedData:
rseName = "%s_Test" % location if self.testRSEs else location
for container in uninjectedData[location]:
for block in uninjectedData[location][container]:
if block not in self.blocksCache:
if self.rucio.createBlock(block,
rse=rseName,
meta=self.metaDIDProject):
logging.info("Block %s inserted into Rucio", block)
newBlocks.add(block)
else:
logging.error("Failed to create block: %s", block)
logging.info("Successfully inserted %d blocks into Rucio", newBlocks)
return newBlocks
def insertBlockRules(self):
"""
Creates a simple replication rule for every single block that
is under production in a given site/RSE.
Also persist the rule ID in the database.
"""
if not self.createBlockRules:
return
logging.info("Preparing to create block rules into Rucio...")
unsubBlocks = self.getUnsubscribedBlocks.execute()
for item in unsubBlocks:
# first, check if the block has already been created in Rucio
if not self.rucio.didExist(item['blockname']):
logging.warning("Block: %s not yet in Rucio. Retrying later..",
item['blockname'])
continue
kwargs = dict(activity="Production Output",
account=self.rucioAcct,
grouping="DATASET",
comment="WMAgent automatic container rule",
ignore_availability=True,
meta=self.metaData)
rseName = "%s_Test" % item['pnn'] if self.testRSEs else item['pnn']
# DATASET = replicates all files in the same block to the same RSE
resp = self.rucio.createReplicationRule(item['blockname'],
rseExpression=rseName,
**kwargs)
if resp:
msg = "Block rule created for block: %s, at: %s, with rule id: %s"
logging.info(msg, item['blockname'], item['pnn'], resp[0])
binds = {'RULE_ID': resp[0], 'BLOCKNAME': item['blockname']}
self.setBlockRules.execute(binds)
else:
logging.error("Failed to create rule for block: %s at %s",
item['blockname'], rseName)
return
def insertReplicas(self, uninjectedData):
"""
Inserts replicas into Rucio and attach them to its specific block.
If the insertion succeeds, also switch their database state to injected.
:param uninjectedData: dictionary with blocks as key, and RSEs as value
"""
# FIXME: I think we need a different data struct from the database
# this method is very expensive O(n^4)
logging.info("Preparing to insert replicas into Rucio...")
for location in uninjectedData:
rseName = "%s_Test" % location if self.testRSEs else location
for container in uninjectedData[location]:
for block in uninjectedData[location][container]:
if block not in self.blocksCache:
logging.warning(
"Skipping %d file injection for block that failed to be added into Rucio: %s",
len(uninjectedData[location][container][block]
['files']), block)
continue
injectData = []
listLfns = []
for fileInfo in uninjectedData[location][container][block][
'files']:
listLfns.append(fileInfo['lfn'])
injectData.append(
dict(name=fileInfo['lfn'],
scope=self.scope,
bytes=fileInfo['size'],
state="A",
adler32=fileInfo['checksum']['adler32']))
if self.rucio.createReplicas(rse=rseName,
files=injectData,
block=block):
logging.info(
"Successfully inserted %d files on block %s",
len(listLfns), block)
self._updateLFNState(listLfns)
return
def _updateLFNState(self, listLfns, recovery=False):
"""
Given a list of LFNs, update their state in dbsbuffer table.
:param listLfns: list of LFNs
:param recovery: True if we are recovering previously injected files
:return: nothing
"""
if not listLfns:
return
try:
self.setStatus.execute(listLfns, 1)
except Exception as ex:
# save it to try to inject them again in the next cycle
self.filesToRecover.extend(listLfns)
if 'Deadlock found' in str(ex) or 'deadlock detected' in str(ex):
logging.error(
"Deadlock during file status update. Retrying again in the next cycle."
)
self.filesToRecover.extend(listLfns)
else:
msg = "Failed to update file status in the database, reason: %s" % str(
ex)
logging.error(msg)
raise RucioInjectorException(msg)
else:
if recovery:
self.filesToRecover = []
def closeBlocks(self):
"""
Close any blocks that have been migrated to global DBS
"""
logging.info("Starting closeBlocks method")
# in short, dbsbuffer_file.in_phedex = 1 AND dbsbuffer_block.status = 'InDBS'
migratedBlocks = self.getMigrated.execute()
### FIXME the data format returned by this DAO
for location in migratedBlocks:
for container in migratedBlocks[location]:
for block in migratedBlocks[location][container]:
logging.info("Closing block: %s", block)
if self.rucio.closeBlockContainer(block):
self.setBlockClosed.execute(block)
else:
logging.error(
"Failed to close block: %s. Will retry again later.",
block)
def deleteBlocks(self):
"""
_deleteBlocks_
Find deletable blocks, then decide if to delete based on:
Has transfer to all destinations finished ?
If yes => Delete rules associated with the block, set deleted=1
If no => do nothing (check again next cycle)
"""
logging.info("Checking if there are block rules to be deleted...")
# Get list of blocks that can be deleted
blockDict = self.findDeletableBlocks.execute(transaction=False)
if not blockDict:
logging.info("No candidate blocks found for rule deletion")
return
logging.info("Found %d candidate blocks for rule deletion",
len(blockDict))
blocksToDelete = []
containerDict = {}
# Populate containerDict, assigning each block to its correspondant container
for blockName in blockDict:
container = blockDict[blockName]['dataset']
# If the container is not in the dictionary, create a new entry for it
if container not in containerDict:
# Set of sites to which the container needs to be transferred
sites = set(
x.replace("_MSS", "_Tape")
for x in blockDict[blockName]['sites'])
containerDict[container] = {'blocks': [], 'rse': sites}
containerDict[container]['blocks'].append(blockName)
for contName in containerDict:
cont = containerDict[contName]
# Checks if the container is not requested in any sites.
# This should never be triggered, but better safe than sorry
if not cont['rse']:
logging.warning(
"No rules for container: %s. Its blocks won't be deleted.",
contName)
continue
try:
# Get RSE in which each block is available
availableRSEs = self.rucio.getReplicaInfoForBlocks(
block=cont['blocks'])
except Exception as exc:
msg = "Failed to get replica info for blocks in container: %s.\n" % contName
msg += "Will retry again in the next cycle. Error: %s" % str(
exc)
logging.error(msg)
continue
for blockRSEs in availableRSEs:
# If block is available at every RSE its container needs to be transferred, the block can be deleted
blockSites = set(blockRSEs['replica'])
if cont['rse'].issubset(blockSites):
blocksToDelete.append(blockRSEs['name'])
# Delete agent created rules locking the block
binds = []
logging.info("Going to delete %d block rules", len(blocksToDelete))
for block in blocksToDelete:
try:
rules = self.rucio.listDataRules(block,
scope=self.scope,
account=self.rucioAcct)
except WMRucioException as exc:
logging.warning(
"Unable to retrieve replication rules for block: %s. Will retry in the next cycle.",
block)
else:
if not rules:
logging.info(
"Block rule for: %s has been deleted by previous cycles",
block)
binds.append({'DELETED': 1, 'BLOCKNAME': block})
continue
for rule in rules:
deletedRules = 0
if self.rucio.deleteRule(rule['id'], purgeReplicas=True):
logging.info(
"Successfully deleted rule: %s, for block %s.",
rule['id'], block)
deletedRules += 1
else:
logging.warning(
"Failed to delete rule: %s, for block %s. Will retry in the next cycle.",
rule['id'], block)
if deletedRules == len(rules):
binds.append({'DELETED': 1, 'BLOCKNAME': block})
logging.info(
"Successfully deleted all rules for block %s.", block)
self.markBlocksDeleted.execute(binds)
logging.info("Marked %d blocks as deleted in the database", len(binds))
return
def insertContainerRules(self):
"""
Polls the database for containers meant to be subscribed and create
a container level rule to replicate all the files to a given RSE.
It deals with both Central Production and T0 data rules, which require
a different approach, such as:
* Production Tape/Custodial data placement is skipped and data is marked as transferred
* Production Disk/NonCutodial has a generic RSE expression and some rules override
from the agent configuration (like number of copies, grouping and weight)
* T0 Tape is created as defined, with a special rule activity for Tape
* T0 Disk is created as defined, with a special rule activity for Disk/Export
"""
logging.info("Starting insertContainerRules method")
ruleComment = "WMAgent automatic container rule"
if self.isT0agent:
ruleComment = "T0 " + ruleComment
# FIXME also adapt the format returned by this DAO
# Check for completely unsubscribed datasets that are already marked as in_phedex = 1
unsubscribedDatasets = self.getUnsubscribedDsets.execute()
# Keep a list of subscriptions to tick as subscribed in the database
subscriptionsMade = []
# Create the subscription objects and add them to the list
# The list takes care of the sorting internally
for subInfo in unsubscribedDatasets:
rseName = subInfo['site'].replace("_MSS", "_Tape")
container = subInfo['path']
# Skip central production Tape rules
if not self.isT0agent and rseName.endswith("_Tape"):
logging.info(
"Bypassing Production container Tape data placement for container: %s and RSE: %s",
container, rseName)
subscriptionsMade.append(subInfo['id'])
continue
# then check if the container has already been created in Rucio
if not self.rucio.didExist(container):
logging.warning(
"Container: %s not yet in Rucio. Retrying later..",
container)
continue
ruleKwargs = dict(ask_approval=False,
activity=self._activityMap(rseName),
account=self.rucioAcct,
grouping="ALL",
comment=ruleComment,
meta=self.metaData)
if not rseName.endswith("_Tape"):
# add extra parameters to the Disk rule as defined in the component configuration
ruleKwargs.update(self.containerDiskRuleParams)
if not self.isT0agent:
# destination for production Disk rules are always overwritten
rseName = self.containerDiskRuleRSEExpr
if self.testRSEs:
rseName = rseName.replace("cms_type=real", "cms_type=test")
else:
# then it's a T0 container placement
ruleKwargs['priority'] = 4
if self.testRSEs:
rseName = "%s_Test" % rseName
#Checking whether we need to ask for rule approval
try:
if self.rucio.requiresApproval(rseName):
ruleKwargs['ask_approval'] = True
except WMRucioException as exc:
msg = str(exc)
msg += "\nUnable to check approval requirements. Will retry again in the next cycle."
logging.error(msg)
continue
logging.info("Creating container rule for %s against RSE %s",
container, rseName)
logging.debug(
"Container rule will be created with keyword args: %s",
ruleKwargs)
try:
resp = self.rucio.createReplicationRule(container,
rseExpression=rseName,
**ruleKwargs)
except Exception:
msg = "Failed to create container rule for (retrying with approval): %s" % container
logging.warning(msg)
ruleKwargs["ask_approval"] = True
try:
resp = self.rucio.createReplicationRule(
container, rseExpression=rseName, **ruleKwargs)
except Exception as exc:
msg = "Failed once again to create container rule for: %s " % container
msg += "\nWill retry again in the next cycle. Error: %s" % str(
exc)
continue
if resp:
logging.info("Container rule created for %s under rule id: %s",
container, resp)
subscriptionsMade.append(subInfo['id'])
else:
logging.error("Failed to create rule for container: %s",
container)
# Register the result in DBSBuffer
if subscriptionsMade:
self.markSubscribed.execute(subscriptionsMade)
logging.info(
"%d containers successfully locked in Rucio and local database",
len(subscriptionsMade))
return
def _activityMap(self, rseName):
"""
It maps the WMAgent type (Production vs T0) and the RSE name to
properly set the rule activity field
:param rseName: a string with the RSE name
:return: a string with the rule activity
"""
if not self.isT0agent and not rseName.endswith("_Tape"):
return "Production Output"
elif self.isT0agent and rseName.endswith("_Tape"):
return "T0 Tape"
elif self.isT0agent:
return "T0 Export"
else:
msg = "This code should never be reached. Report it to the developers. "
msg += "Trying to create container rule for RSE name: {}".format(
rseName)
raise WMRucioException(msg)
class RucioInjectorPoller(BaseWorkerThread):
"""
_RucioInjectorPoller_
Poll the DBSBuffer database and inject files as they are created.
The logic of this component is:
* create a rucio container (or reuse a pre-existent one)
* create a CMS block (or reuse a pre-existent one), block gets automatically attached
* create file/replicas, which get automatically attached to its block as well
* now create a CMS block rule to protect this data
* if the block has been inserted into DBS, close the block in Rucio
In addition to that, it has logic for rucio container subscription (rule creation),
and block rule removal. Those follow a different polling cycle though.
"""
def __init__(self, config):
"""
___init___
Initialise class members
"""
BaseWorkerThread.__init__(self)
self.enabled = config.RucioInjector.enabled
# dataset rule creation has a larger polling cycle
self.pollRules = config.RucioInjector.pollIntervalRules
self.lastRulesExecTime = 0
self.createBlockRules = config.RucioInjector.createBlockRules
self.skipRulesForTiers = config.RucioInjector.skipRulesForTiers
self.listTiersToInject = config.RucioInjector.listTiersToInject
# setup cache for container and blocks (containers can be much longer, make 6 days now)
self.containersCache = MemoryCache(
config.RucioInjector.cacheExpiration * 3, set())
self.blocksCache = MemoryCache(config.RucioInjector.cacheExpiration,
set())
self.scope = getattr(config.RucioInjector, "scope", "cms")
self.rucioAcct = config.RucioInjector.rucioAccount
self.rucio = Rucio(acct=self.rucioAcct,
hostUrl=config.RucioInjector.rucioUrl,
authUrl=config.RucioInjector.rucioAuthUrl,
configDict={'logger': self.logger})
# metadata dictionary information to be added to block/container rules
# cannot be a python dictionary, but a JSON string instead
self.metaData = json.dumps(
dict(agentHost=config.Agent.hostName,
userAgent=config.Agent.agentName))
self.testRSEs = config.RucioInjector.RSEPostfix
self.filesToRecover = []
logging.info(
"Component configured to only inject data for data tiers: %s",
self.listTiersToInject)
logging.info(
"Component configured to skip container rule creation for data tiers: %s",
self.skipRulesForTiers)
logging.info("Component configured to create block rules: %s",
self.createBlockRules)
def setup(self, parameters):
"""
_setup_
Create DAO Factory and setup some DAO.
"""
myThread = threading.currentThread()
daofactory = DAOFactory(package="WMComponent.RucioInjector.Database",
logger=self.logger,
dbinterface=myThread.dbi)
self.getUninjected = daofactory(classname="GetUninjectedFiles")
self.getMigrated = daofactory(classname="GetMigratedBlocks")
self.getUnsubscribedBlocks = daofactory(
classname="GetUnsubscribedBlocks")
self.setBlockRules = daofactory(classname="SetBlocksRule")
self.findDeletableBlocks = daofactory(classname="GetDeletableBlocks")
self.markBlocksDeleted = daofactory(classname="MarkBlocksDeleted")
self.getUnsubscribedDsets = daofactory(
classname="GetUnsubscribedDatasets")
self.markSubscribed = daofactory(classname="MarkDatasetSubscribed")
daofactory = DAOFactory(package="WMComponent.DBS3Buffer",
logger=self.logger,
dbinterface=myThread.dbi)
self.setStatus = daofactory(classname="DBSBufferFiles.SetPhEDExStatus")
self.setBlockClosed = daofactory(classname="SetBlockClosed")
@timeFunction
def algorithm(self, parameters):
"""
_algorithm_
Poll the database for uninjected files and inject them into Rucio.
"""
if not self.enabled:
logging.info(
"RucioInjector component is disabled in the configuration, exiting."
)
return
logging.info("Running Rucio injector poller algorithm...")
try:
# files that failed to get their status updated in dbsbuffer
self._updateLFNState(self.filesToRecover, recovery=True)
# get dbsbuffer_file.in_phedex = 0
uninjectedFiles = self.getUninjected.execute()
# while we commission Rucio within WM, not all datatiers are supposed
# to be injected by this component. Remove any data that we are not
# meant to process!
uninjectedFiles = filterDataByTier(uninjectedFiles,
self.listTiersToInject)
# create containers in rucio (and update local cache)
containersAdded = self.insertContainers(uninjectedFiles)
if self.containersCache.isCacheExpired():
self.containersCache.setCache(containersAdded)
else:
self.containersCache.addItemToCache(containersAdded)
# create blocks. Only update the cache once a rule gets created...
blocksAdded = self.insertBlocks(uninjectedFiles)
if self.blocksCache.isCacheExpired():
self.blocksCache.setCache(blocksAdded)
else:
self.blocksCache.addItemToCache(blocksAdded)
# create file replicas
self.insertReplicas(uninjectedFiles)
# now close blocks already uploaded to DBS
self.closeBlocks()
if self.lastRulesExecTime + self.pollRules <= int(time.time()):
self.insertContainerRules()
self.insertBlockRules()
self.deleteBlocks()
except Exception as ex:
msg = "Caught unexpected exception in RucioInjector. Details:\n%s" % str(
ex)
logging.exception(msg)
raise RucioInjectorException(msg)
return
def insertContainers(self, uninjectedData):
"""
This method will insert containers into Rucio, provided they cannot be found in
the local cache.
:param uninjectedData: same data as it's returned from the uninjectedFiles
:return: set of containers successfully inserted into Rucio
"""
logging.info("Preparing to insert containers into Rucio...")
newContainers = set()
for location in uninjectedData:
for container in uninjectedData[location]:
# same container can be at multiple locations
if container not in self.containersCache and container not in newContainers:
if self.rucio.createContainer(container):
logging.info("Container %s inserted into Rucio",
container)
newContainers.add(container)
else:
logging.error("Failed to create container: %s",
container)
logging.info("Successfully inserted %d containers into Rucio",
newContainers)
return newContainers
def insertBlocks(self, uninjectedData):
"""
This method will insert blocks into Rucio and attach them to their correspondent
containers, when attaching this block, we also need to provide the RSE that it
will be available.
:param uninjectedData: same data as it's returned from the uninjectedFiles
:return: a dictionary of successfully inserted blocks and their correspondent location
"""
logging.info("Preparing to insert blocks into Rucio...")
newBlocks = set()
for location in uninjectedData:
rseName = "%s_Test" % location if self.testRSEs else location
for container in uninjectedData[location]:
for block in uninjectedData[location][container]:
if block not in self.blocksCache:
if self.rucio.createBlock(block, rse=rseName):
logging.info("Block %s inserted into Rucio", block)
newBlocks.add(block)
else:
logging.error("Failed to create block: %s", block)
logging.info("Successfully inserted %d blocks into Rucio", newBlocks)
return newBlocks
# TODO: this will likely go away once the phedex to rucio migration is over
def _isBlockTierAllowed(self, blockName):
"""
Performs a couple of checks on the block datatier, such as:
* is the datatier supposed to be injected by this component
* is the datatier supposed to get rules created by this component
:return: True if the component can proceed with this block, False otherwise
"""
endBlock = blockName.rsplit('/', 1)[1]
endTier = endBlock.split('#')[0]
if endTier not in self.listTiersToInject:
return False
if endTier in self.skipRulesForTiers:
return False
return True
def insertBlockRules(self):
"""
Creates a simple replication rule for every single block that
is under production in a given site/RSE.
Also persist the rule ID in the database.
"""
if not self.createBlockRules:
return
logging.info("Preparing to create block rules into Rucio...")
unsubBlocks = self.getUnsubscribedBlocks.execute()
for item in unsubBlocks:
if not self._isBlockTierAllowed(item['blockname']):
logging.debug(
"Component configured to skip block rule for: %s",
item['blockname'])
continue
rseName = "%s_Test" % item['pnn'] if self.testRSEs else item['pnn']
# DATASET = replicates all files in the same block to the same RSE
resp = self.rucio.createReplicationRule(
item['blockname'],
rseExpression="rse=%s" % rseName,
account=self.rucioAcct,
grouping="DATASET",
comment="WMAgent production site",
meta=self.metaData)
if resp:
msg = "Block rule created for block: %s, at: %s, with rule id: %s"
logging.info(msg, item['blockname'], item['pnn'], resp[0])
binds = {'RULE_ID': resp[0], 'BLOCKNAME': item['blockname']}
self.setBlockRules.execute(binds)
else:
logging.error("Failed to create rule for block: %s at %s",
item['blockname'], rseName)
return
def insertReplicas(self, uninjectedData):
"""
Inserts replicas into Rucio and attach them to its specific block.
If the insertion succeeds, also switch their database state to injected.
:param uninjectedData: dictionary with blocks as key, and RSEs as value
"""
# FIXME: I think we need a different data struct from the database
# this method is very expensive O(n^4)
logging.info("Preparing to insert replicas into Rucio...")
for location in uninjectedData.keys():
rseName = "%s_Test" % location if self.testRSEs else location
for container in uninjectedData[location]:
for block in uninjectedData[location][container]:
injectData = []
listLfns = []
for fileInfo in uninjectedData[location][container][block][
'files']:
listLfns.append(fileInfo['lfn'])
injectData.append(
dict(name=fileInfo['lfn'],
scope=self.scope,
bytes=fileInfo['size'],
state="A",
adler32=fileInfo['checksum']['adler32']))
if self.rucio.createReplicas(rse=rseName,
files=injectData,
block=block):
logging.info(
"Successfully inserted %d files on block %s",
len(listLfns), block)
self._updateLFNState(listLfns)
return
def _updateLFNState(self, listLfns, recovery=False):
"""
Given a list of LFNs, update their state in dbsbuffer table.
:param listLfns: list of LFNs
:param recovery: True if we are recovering previously injected files
:return: nothing
"""
if not listLfns:
return
try:
self.setStatus.execute(listLfns, 1)
except Exception as ex:
# save it to try to inject them again in the next cycle
self.filesToRecover.extend(listLfns)
if 'Deadlock found' in str(ex) or 'deadlock detected' in str(ex):
logging.error(
"Deadlock during file status update. Retrying again in the next cycle."
)
self.filesToRecover.extend(listLfns)
else:
msg = "Failed to update file status in the database, reason: %s" % str(
ex)
logging.error(msg)
raise RucioInjectorException(msg)
else:
if recovery:
self.filesToRecover = []
def closeBlocks(self):
"""
Close any blocks that have been migrated to global DBS
"""
logging.info("Starting closeBlocks method")
# in short, dbsbuffer_file.in_phedex = 1 AND dbsbuffer_block.status = 'InDBS'
migratedBlocks = self.getMigrated.execute()
### FIXME the data format returned by this DAO
for location in migratedBlocks:
for container in migratedBlocks[location]:
if not self._isContainerTierAllowed(container,
checkRulesList=False):
continue
for block in migratedBlocks[location][container]:
if self.rucio.closeBlockContainer(block):
self.setBlockClosed.execute(block)
else:
logging.error(
"Failed to close block: %s. Will retry again later.",
block)
def deleteBlocks(self):
"""
_deleteBlocks_
Find deletable blocks, then decide if to delete based on:
Is there an active subscription for dataset or block ?
If yes => set deleted=2
If no => next check
Has transfer to all destinations finished ?
If yes => request block deletion, approve request, set deleted=1
If no => do nothing (check again next cycle)
"""
# FIXME: figure out the proper logic for rule block deletion
logging.info("Starting deleteBlocks methods --> IMPLEMENT-ME!!!")
# TODO: this will likely go away once the phedex to rucio migration is over
def _isContainerTierAllowed(self, containerName, checkRulesList=True):
"""
It compares the container datatier name to check whether the component
should inject data for it or not.
In addition to that, it can also evaluate whether it's allowed to create
rules for such datatier or not.
:param containerName: string with the name of the container
:param checkRulesList: boolean to check or not against the list of tiers
to be skipped in the rule creation
:return: True if the component can proceed with this container, False otherwise
"""
endTier = containerName.rsplit('/', 1)[1]
if endTier not in self.listTiersToInject:
return False
if checkRulesList and endTier in self.skipRulesForTiers:
return False
return True
def insertContainerRules(self):
"""
_insertContainerRules_
Poll the database for datasets meant to be subscribed and create
a container level rule to replicate all files to a given RSE
"""
logging.info("Starting insertContainerRules method")
# FIXME also adapt the format returned by this DAO
# Check for completely unsubscribed datasets
# in short, files in phedex, file status in "GLOBAL" or "InDBS", and subscribed=0
unsubscribedDatasets = self.getUnsubscribedDsets.execute()
# Keep a list of subscriptions to tick as subscribed in the database
subscriptionsMade = []
# Create the subscription objects and add them to the list
# The list takes care of the sorting internally
for subInfo in unsubscribedDatasets:
rse = subInfo['site']
container = subInfo['path']
if not self._isContainerTierAllowed(container):
logging.debug(
"Component configured to skip container rule for: %s",
container)
continue
logging.info("Creating container rule for %s against RSE %s",
container, rse)
rseName = "%s_Test" % rse if self.testRSEs else rse
# ALL = replicates all files to the same RSE
resp = self.rucio.createReplicationRule(
container,
rseExpression="rse=%s" % rseName,
account=self.rucioAcct,
grouping="ALL",
comment="WMAgent automatic container rule",
meta=self.metaData)
if resp:
logging.info("Container rule created for %s under rule id: %s",
container, resp)
subscriptionsMade.append(subInfo['id'])
else:
logging.error("Failed to create rule for block: %s", container)
# Register the result in DBSBuffer
if subscriptionsMade:
self.markSubscribed.execute(subscriptionsMade)
return
def testSetDiffTypes(self):
cache = MemoryCache(2, set())
self.assertItemsEqual(cache.getCache(), set())
cache.setCache({"item1", "item2"})
self.assertRaises(TypeError, cache.setCache, ["item3"])