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fts3.py
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fts3.py
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# Copyright European Organization for Nuclear Research (CERN) since 2012
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import datetime
import json
import logging
import pathlib
import traceback
import uuid
from collections.abc import Callable
from configparser import NoOptionError, NoSectionError
from json import loads
from typing import TYPE_CHECKING, Any, Optional
from urllib.parse import urlparse
import requests
from dogpile.cache.api import NoValue
from requests.adapters import ReadTimeout
from requests.packages.urllib3 import disable_warnings # pylint: disable=import-error
from rucio.common.cache import make_region_memcached
from rucio.common.config import config_get, config_get_bool, config_get_int, config_get_list
from rucio.common.constants import FTS_COMPLETE_STATE, FTS_JOB_TYPE, FTS_STATE
from rucio.common.exception import DuplicateFileTransferSubmission, TransferToolTimeout, TransferToolWrongAnswer
from rucio.common.stopwatch import Stopwatch
from rucio.common.utils import PREFERRED_CHECKSUM, APIEncoder, chunks, deep_merge_dict
from rucio.core.monitor import MetricManager
from rucio.core.oidc import request_token
from rucio.core.request import get_source_rse, get_transfer_error
from rucio.core.rse import determine_audience_for_rse, determine_scope_for_rse, get_rse_supported_checksums_from_attributes
from rucio.db.sqla.constants import RequestState
from rucio.transfertool.fts3_plugins import FTS3TapeMetadataPlugin
from rucio.transfertool.transfertool import TransferStatusReport, Transfertool, TransferToolBuilder
if TYPE_CHECKING:
from sqlalchemy.orm import Session
from rucio.core.request import DirectTransfer
from rucio.core.rse import RseData
logging.getLogger("requests").setLevel(logging.CRITICAL)
disable_warnings()
REGION_SHORT = make_region_memcached(expiration_time=900)
METRICS = MetricManager(module=__name__)
SUBMISSION_COUNTER = METRICS.counter(name='{host}.submission.{state}',
documentation='Number of transfers submitted', labelnames=('state', 'host'))
CANCEL_COUNTER = METRICS.counter(name='{host}.cancel.{state}',
documentation='Number of cancelled transfers', labelnames=('state', 'host'))
UPDATE_PRIORITY_COUNTER = METRICS.counter(name='{host}.update_priority.{state}',
documentation='Number of priority updates', labelnames=('state', 'host'))
QUERY_COUNTER = METRICS.counter(name='{host}.query.{state}',
documentation='Number of queried transfers', labelnames=('state', 'host'))
WHOAMI_COUNTER = METRICS.counter(name='{host}.whoami.{state}',
documentation='Number of whoami requests', labelnames=('state', 'host'))
VERSION_COUNTER = METRICS.counter(name='{host}.version.{state}',
documentation='Number of version requests', labelnames=('state', 'host'))
BULK_QUERY_COUNTER = METRICS.counter(name='{host}.bulk_query.{state}',
documentation='Number of bulk queries', labelnames=('state', 'host'))
QUERY_DETAILS_COUNTER = METRICS.counter(name='{host}.query_details.{state}',
documentation='Number of detailed status queries', labelnames=('state', 'host'))
REWRITE_HTTPS_TO_DAVS = config_get_bool('transfers', 'rewrite_https_to_davs', default=False)
VO_CERTS_PATH = config_get('conveyor', 'vo_certs_path', False, None)
# https://fts3-docs.web.cern.ch/fts3-docs/docs/state_machine.html
FINAL_FTS_JOB_STATES = (FTS_STATE.FAILED, FTS_STATE.CANCELED, FTS_STATE.FINISHED, FTS_STATE.FINISHEDDIRTY)
FINAL_FTS_FILE_STATES = (FTS_STATE.FAILED, FTS_STATE.CANCELED, FTS_STATE.FINISHED, FTS_STATE.NOT_USED)
# In a multi-hop transfer, we must compute a checksum validation strategy valid for the whole path.
# This state-machine defines how strategies of hops are merged into a path-wide strategy.
# For example, if HOP1 supports only validation of checksum at source while HOP2 only
# supports validation at destination, the strategy for the whole path MUST be "none". Otherwise,
# transfers will fail when FTS will try to validate the checksum.
PATH_CHECKSUM_VALIDATION_STRATEGY: dict[tuple[str, str], str] = {
('both', 'both'): 'both',
('both', 'target'): 'target',
('both', 'source'): 'source',
('both', 'none'): 'none',
('target', 'both'): 'target',
('target', 'target'): 'target',
('target', 'source'): 'none',
('target', 'none'): 'none',
('source', 'both'): 'source',
('source', 'target'): 'none',
('source', 'source'): 'source',
('source', 'none'): 'none',
('none', 'both'): 'none',
('none', 'target'): 'none',
('none', 'source'): 'none',
('none', 'none'): 'none',
}
_SCITAGS_NEXT_REFRESH = datetime.datetime.utcnow()
_SCITAGS_EXP_ID = None
_SCITAGS_ACTIVITY_IDS = {}
def _scitags_ids(logger: Callable[..., Any] = logging.log) -> "tuple[int | None, dict[str, int]]":
"""
Re-fetch if needed and return the scitags ids
"""
enabled = config_get_bool('packet-marking', 'enabled', default=False)
if not enabled:
return None, {}
now = datetime.datetime.utcnow()
global _SCITAGS_ACTIVITY_IDS
global _SCITAGS_EXP_ID
global _SCITAGS_NEXT_REFRESH
if _SCITAGS_NEXT_REFRESH < now:
exp_name = config_get('packet-marking', 'exp_name', default='')
fetch_url = config_get('packet-marking', 'fetch_url', default='https://www.scitags.org/api.json')
fetch_interval = config_get_int('packet-marking', 'fetch_interval', default=int(datetime.timedelta(hours=48).total_seconds()))
fetch_timeout = config_get_int('packet-marking', 'fetch_timeout', default=5)
_SCITAGS_NEXT_REFRESH = now + datetime.timedelta(seconds=fetch_interval)
if exp_name:
had_exception = False
exp_id = None
activity_ids = {}
try:
result = requests.get(fetch_url, timeout=fetch_timeout)
if result and result.status_code == 200:
marks = result.json()
for experiment in marks.get('experiments', []):
if experiment.get('expName') == exp_name:
exp_id = experiment.get('expId')
for activity_dict in experiment.get('activities', []):
activity_name = activity_dict.get('activityName')
activity_id = activity_dict.get('activityId')
if activity_name and activity_id:
activity_ids[activity_name] = int(activity_id)
break
except (requests.exceptions.RequestException, TypeError, ValueError):
had_exception = True
logger(logging.WARNING, 'Failed to fetch the scitags markings', exc_info=True)
if had_exception:
# Retry quicker after fetch errors
_SCITAGS_NEXT_REFRESH = min(_SCITAGS_NEXT_REFRESH, now + datetime.timedelta(minutes=5))
else:
_SCITAGS_EXP_ID = exp_id
_SCITAGS_ACTIVITY_IDS = activity_ids
return _SCITAGS_EXP_ID, _SCITAGS_ACTIVITY_IDS
def _pick_cert_file(vo: "Optional[str]") -> "Optional[str]":
cert = None
if vo:
vo_cert = config_get('vo_certs', vo, False, None)
if vo_cert:
cert = vo_cert
elif VO_CERTS_PATH:
vo_cert = pathlib.Path(VO_CERTS_PATH) / vo
if vo_cert.exists():
cert = str(vo_cert)
if not cert:
usercert = config_get('conveyor', 'usercert', False, None)
if usercert:
cert = usercert
return cert
def _configured_source_strategy(activity: str, logger: Callable[..., Any]) -> str:
"""
Retrieve from the configuration the source selection strategy for the given activity
"""
try:
default_source_strategy = config_get(section='conveyor', option='default-source-strategy')
except (NoOptionError, NoSectionError, RuntimeError):
default_source_strategy = 'orderly'
try:
activity_source_strategy = config_get(section='conveyor', option='activity-source-strategy')
activity_source_strategy = loads(activity_source_strategy)
except (NoOptionError, NoSectionError, RuntimeError):
activity_source_strategy = {}
except ValueError:
logger(logging.WARNING, 'activity_source_strategy not properly defined')
activity_source_strategy = {}
return activity_source_strategy.get(str(activity), default_source_strategy)
def _available_checksums(
transfer: "DirectTransfer",
) -> tuple[set[str], set[str]]:
"""
Get checksums which can be used for file validation on the source and the destination RSE
"""
src_attributes = transfer.src.rse.attributes
if src_attributes.get('verify_checksum', True):
src_checksums = set(get_rse_supported_checksums_from_attributes(src_attributes))
else:
src_checksums = set()
dst_attributes = transfer.dst.rse.attributes
if dst_attributes.get('verify_checksum', True):
dst_checksums = set(get_rse_supported_checksums_from_attributes(dst_attributes))
else:
dst_checksums = set()
return src_checksums, dst_checksums
def _hop_checksum_validation_strategy(
transfer: "DirectTransfer",
logger: Callable[..., Any],
) -> tuple[str, set[str]]:
"""
Compute the checksum validation strategy (none, source, destination or both) depending
on available source and destination checksums for a single hop transfer
"""
src_checksums, dst_checksums = _available_checksums(transfer)
intersection = src_checksums.intersection(dst_checksums)
if intersection:
strategy, possible_checksums = 'both', intersection
elif dst_checksums:
# The prioritization of destination over source here is desired, not random
logger(logging.INFO, f'No common checksum method for {transfer}. Verifying destination only.')
strategy, possible_checksums = 'target', dst_checksums
elif src_checksums:
logger(logging.INFO, f'No common checksum method for {transfer}. Verifying source only.')
strategy, possible_checksums = 'source', src_checksums
else:
logger(logging.INFO, f'No common checksum method for {transfer}. Not verifying source nor destination.')
strategy, possible_checksums = 'none', set()
return strategy, possible_checksums
def _path_checksum_validation_strategy(
transfer_path: "list[DirectTransfer]",
logger: Callable[..., Any],
) -> str:
"""
Compute the checksum validation strategy for the whole transfer path.
"""
path_strategy = 'both'
for transfer_hop in transfer_path:
hop_strategy, _ = _hop_checksum_validation_strategy(transfer_hop, logger)
path_strategy = PATH_CHECKSUM_VALIDATION_STRATEGY.get((path_strategy, hop_strategy), 'none')
return path_strategy
def _pick_fts_checksum(
transfer: "DirectTransfer",
path_strategy: "str",
) -> Optional[str]:
"""
Pick the checksum to use for validating file integrity on this particular transfer hop.
This function will only work correctly for values of 'path_strategy' which are
valid for the englobing multi-hop transfer path.
Returns the checksum as a string in the format expected by the FTS bulks submission API.
"""
src_checksums, dst_checksums = _available_checksums(transfer)
if path_strategy == 'both':
possible_checksums = src_checksums.intersection(dst_checksums)
elif path_strategy == 'target':
possible_checksums = dst_checksums
elif path_strategy == 'source':
possible_checksums = src_checksums
else:
possible_checksums = set()
checksum_to_use = None
for checksum_name in possible_checksums:
checksum_value = getattr(transfer.rws, checksum_name, '')
if not checksum_value:
continue
checksum_to_use = '%s:%s' % (checksum_name.upper(), checksum_value)
if checksum_name == PREFERRED_CHECKSUM:
break
return checksum_to_use
def _use_tokens(transfer_hop: "DirectTransfer"):
"""Whether a transfer can be performed with tokens.
In order to be so, all the involved RSEs must have it explicitly enabled
and the protocol being used must be WebDAV.
"""
for endpoint in [*transfer_hop.sources, transfer_hop.dst]:
if (endpoint.rse.attributes.get('oidc_support') is not True
or endpoint.scheme != 'davs'):
return False
return True
def build_job_params(
transfer_path: list["DirectTransfer"],
bring_online: Optional[int] = None,
default_lifetime: Optional[int] = None,
archive_timeout_override: Optional[int] = None,
max_time_in_queue: Optional[dict] = None, logger: Callable = logging.log) -> dict[str, Any]:
"""
Prepare the job parameters which will be passed to FTS transfertool
"""
# The last hop is the main request (the one which triggered the whole transfer),
# so most attributes will come from it
last_hop = transfer_path[-1]
first_hop = transfer_path[0]
overwrite, bring_online_local = True, None
if first_hop.src.rse.is_tape_or_staging_required():
# Activate bring_online if it was requested by first hop
# We don't allow multihop via a tape, so bring_online should not be set on any other hop
bring_online_local = bring_online
if last_hop.dst.rse.is_tape():
overwrite = False
# Get dest space token
dest_protocol = last_hop.protocol_factory.protocol(last_hop.dst.rse, last_hop.dst.scheme, last_hop.operation_dest)
dest_spacetoken = None
if dest_protocol.attributes and 'extended_attributes' in dest_protocol.attributes and \
dest_protocol.attributes['extended_attributes'] and 'space_token' in dest_protocol.attributes['extended_attributes']:
dest_spacetoken = dest_protocol.attributes['extended_attributes']['space_token']
strict_copy = last_hop.dst.rse.attributes.get('strict_copy', False)
archive_timeout = last_hop.dst.rse.attributes.get('archive_timeout', None)
job_params = {'account': last_hop.rws.account,
'verify_checksum': _path_checksum_validation_strategy(transfer_path, logger=logger),
'copy_pin_lifetime': last_hop.rws.attributes.get('lifetime', default_lifetime),
'bring_online': bring_online_local,
'job_metadata': {
'issuer': 'rucio',
'multi_sources': False,
},
'overwrite': last_hop.rws.attributes.get('overwrite', overwrite),
'priority': last_hop.rws.priority}
if len(transfer_path) > 1:
job_params['multihop'] = True
job_params['job_metadata']['multihop'] = True
elif len(last_hop.sources) > 1:
job_params['job_metadata']['multi_sources'] = True
if strict_copy:
job_params['strict_copy'] = strict_copy
if dest_spacetoken:
job_params['spacetoken'] = dest_spacetoken
if (last_hop.dst.rse.attributes.get('use_ipv4', False)
or any(src.rse.attributes.get('use_ipv4', False) for src in last_hop.sources)):
job_params['ipv4'] = True
job_params['ipv6'] = False
# assume s3alternate True (path-style URL S3 RSEs)
job_params['s3alternate'] = True
src_rse_s3_url_style = first_hop.src.rse.attributes.get('s3_url_style', None)
if src_rse_s3_url_style == "host":
job_params['s3alternate'] = False
dst_rse_s3_url_style = last_hop.dst.rse.attributes.get('s3_url_style', None)
if dst_rse_s3_url_style == "host":
job_params['s3alternate'] = False
if archive_timeout and last_hop.dst.rse.is_tape():
try:
archive_timeout = int(archive_timeout)
if archive_timeout_override is None:
job_params['archive_timeout'] = archive_timeout
elif archive_timeout_override != 0:
job_params['archive_timeout'] = archive_timeout_override
# FTS only supports dst_file metadata if archive_timeout is set
job_params['dst_file_report'] = True
logger(logging.DEBUG, 'Added archive timeout to transfer.')
except ValueError:
logger(logging.WARNING, 'Could not set archive_timeout for %s. Must be integer.', last_hop)
pass
if max_time_in_queue:
if last_hop.rws.activity in max_time_in_queue:
job_params['max_time_in_queue'] = max_time_in_queue[last_hop.rws.activity]
elif 'default' in max_time_in_queue:
job_params['max_time_in_queue'] = max_time_in_queue['default']
overwrite_hop = True
for transfer_hop in transfer_path[:-1]:
# Only allow overwrite if all hops in multihop allow it
h_overwrite = transfer_hop.rws.attributes.get('overwrite', True)
job_params['overwrite'] = h_overwrite and job_params['overwrite']
# Allow overwrite_hop if all intermediate hops allow it (ignoring the last hop)
overwrite_hop = h_overwrite and overwrite_hop
if not job_params['overwrite'] and overwrite_hop:
job_params['overwrite_hop'] = overwrite_hop
return job_params
def bulk_group_transfers(
transfer_paths: list[list["DirectTransfer"]],
policy: str = 'rule',
group_bulk: int = 200,
source_strategy: Optional[str] = None,
max_time_in_queue: Optional[dict] = None,
logger: Callable = logging.log,
archive_timeout_override: Optional[int] = None,
bring_online: Optional[int] = None,
default_lifetime: Optional[int] = None) -> list[dict[str, Any]]:
"""
Group transfers in bulk based on certain criterias
:param transfer_paths: List of transfer paths to group. Each path is a list of single-hop transfers.
:param policy: Policy to use to group.
:param group_bulk: Bulk sizes.
:param source_strategy: Strategy to group sources
:param max_time_in_queue: Maximum time in queue
:param archive_timeout_override: Override the archive_timeout parameter for any transfers with it set (0 to unset)
:param logger: Optional decorated logger that can be passed from the calling daemons or servers.
:return: List of grouped transfers.
"""
grouped_transfers = {}
fts_jobs = []
for transfer_path in transfer_paths:
job_params = build_job_params(
transfer_path=transfer_path,
bring_online=bring_online,
default_lifetime=default_lifetime,
archive_timeout_override=archive_timeout_override,
max_time_in_queue=max_time_in_queue,
logger=logger
)
if job_params['job_metadata'].get('multi_sources') or job_params['job_metadata'].get('multihop'):
# for multi-hop and multi-source transfers, no bulk submission.
fts_jobs.append({'transfers': transfer_path[0:group_bulk], 'job_params': job_params})
else:
# it's a single-hop, single-source, transfer. Hence, a candidate for bulk submission.
transfer = transfer_path[0]
# we cannot group transfers together if their job_key differ
job_key = '%s,%s,%s,%s,%s,%s,%s,%s' % (
job_params['verify_checksum'],
job_params.get('spacetoken', ''),
job_params['copy_pin_lifetime'],
job_params['bring_online'],
job_params['job_metadata'],
job_params['overwrite'],
job_params['priority'],
job_params.get('max_time_in_queue', '')
)
# Additionally, we don't want to group transfers together if their policy_key differ
policy_key = ''
if policy == 'rule':
policy_key = '%s' % transfer.rws.rule_id
if policy == 'dest':
policy_key = '%s' % transfer.dst.rse.name
if policy == 'src_dest':
policy_key = '%s,%s' % (transfer.src.rse.name, transfer.dst.rse.name)
if policy == 'rule_src_dest':
policy_key = '%s,%s,%s' % (transfer.rws.rule_id, transfer.src.rse.name, transfer.dst.rse.name)
if policy == 'activity_dest':
policy_key = '%s %s' % (transfer.rws.activity, transfer.dst.rse.name)
policy_key = "_".join(policy_key.split(' '))
if policy == 'activity_src_dest':
policy_key = '%s %s %s' % (transfer.rws.activity, transfer.src.rse.name, transfer.dst.rse.name)
policy_key = "_".join(policy_key.split(' '))
# maybe here we need to hash the key if it's too long
group_key = "%s_%s" % (job_key, policy_key)
if group_key not in grouped_transfers:
grouped_transfers[group_key] = {'transfers': [], 'job_params': job_params}
grouped_transfers[group_key]['transfers'].append(transfer)
# split transfer groups to have at most group_bulk elements in each one
for group in grouped_transfers.values():
job_params = group['job_params']
for transfer_paths in chunks(group['transfers'], group_bulk):
fts_jobs.append({'transfers': transfer_paths, 'job_params': job_params})
return fts_jobs
class Fts3TransferStatusReport(TransferStatusReport):
supported_db_fields = [
'state',
'external_id',
'started_at',
'transferred_at',
'staging_started_at',
'staging_finished_at',
'source_rse_id',
'err_msg',
'attributes',
]
def __init__(self, external_host: str, request_id: str, request: Optional[dict] = None):
super().__init__(request_id, request=request)
self.external_host = external_host
# Initialized in child class constructors:
self._transfer_id = None
self._file_metadata = {}
self._multi_sources = None
self._src_url = None
self._dst_url = None
# Initialized in child class initialize():
self._reason = None
self._src_rse = None
self._fts_address = self.external_host
# Supported db fields bellow:
self.state = None
self.external_id = None
self.started_at = None
self.transferred_at = None
self.staging_started_at = None
self.staging_finished_at = None
self.source_rse_id = None
self.err_msg = None
self.attributes = None
def __str__(self):
return f'Transfer {self._transfer_id} of {self._file_metadata["scope"]}:{self._file_metadata["name"]} ' \
f'{self._file_metadata["src_rse"]} --({self._file_metadata["request_id"]})-> {self._file_metadata["dst_rse"]}'
def initialize(self, session: "Session", logger: Callable = logging.log) -> None:
raise NotImplementedError(f"{self.__class__.__name__} is abstract and shouldn't be used directly")
def get_monitor_msg_fields(self, session: "Session", logger: Callable = logging.log) -> dict[str, Any]:
self.ensure_initialized(session, logger)
fields = {
'transfer_link': self._transfer_link(),
'reason': self._reason,
'src-type': self._file_metadata.get('src_type'),
'src-rse': self._src_rse,
'src-url': self._src_url,
'dst-type': self._file_metadata.get('src_type'),
'dst-rse': self._file_metadata.get('dst_rse'),
'dst-url': self._dst_url,
'started_at': self.started_at,
'transferred_at': self.transferred_at,
}
return fields
def _transfer_link(self):
return '%s/fts3/ftsmon/#/job/%s' % (self._fts_address.replace('8446', '8449'), self._transfer_id)
def _find_attribute_updates(self, request: dict, new_state: RequestState, reason: str, overwrite_corrupted_files: Optional[bool] = None) -> Optional[dict[str, Any]]:
attributes = None
if new_state == RequestState.FAILED and 'Destination file exists and overwrite is not enabled' in (reason or ''):
dst_file = self._file_metadata.get('dst_file', {})
if self._dst_file_set_and_file_corrupted(request, dst_file):
if overwrite_corrupted_files:
attributes = request['attributes']
attributes['overwrite'] = True
return attributes
def _find_used_source_rse(self, session: "Session", logger: Callable) -> tuple[Optional[str], Optional[str]]:
"""
For multi-source transfers, FTS has a choice between multiple sources.
Find which of the possible sources FTS actually used for the transfer.
"""
meta_rse_name = self._file_metadata.get('src_rse', None)
meta_rse_id = self._file_metadata.get('src_rse_id', None)
request_id = self._file_metadata.get('request_id', None)
if self._multi_sources and self._src_url:
rse_name, rse_id = get_source_rse(request_id, self._src_url, session=session)
if rse_name and rse_name != meta_rse_name:
logger(logging.DEBUG, 'Correct RSE: %s for source surl: %s' % (rse_name, self._src_url))
return rse_name, rse_id
return meta_rse_name, meta_rse_id
@staticmethod
def _dst_file_set_and_file_corrupted(request: dict, dst_file: dict) -> bool:
"""
Returns True if the `dst_file` dict returned by fts was filled and its content allows to
affirm that the file is corrupted.
"""
if (request and dst_file and (
dst_file.get('file_size') is not None and dst_file['file_size'] != request.get('bytes')
or dst_file.get('checksum_type', '').lower() == 'adler32' and dst_file.get('checksum_value') != request.get('adler32')
or dst_file.get('checksum_type', '').lower() == 'md5' and dst_file.get('checksum_value') != request.get('md5'))):
return True
return False
@staticmethod
def _dst_file_set_and_file_correct(request: dict, dst_file: dict) -> bool:
"""
Returns True if the `dst_file` dict returned by fts was filled and its content allows to
affirm that the file is correct.
"""
if (request and dst_file
and dst_file.get('file_size')
and dst_file.get('file_size') == request.get('bytes')
and (dst_file.get('checksum_type', '').lower() == 'adler32' and dst_file.get('checksum_value') == request.get('adler32')
or dst_file.get('checksum_type', '').lower() == 'md5' and dst_file.get('checksum_value') == request.get('md5'))):
return True
return False
@classmethod
def _is_recoverable_fts_overwrite_error(cls, request: dict[str, Any], reason: str,
file_metadata: dict[str, Any]) -> bool:
"""
Verify the special case when FTS cannot copy a file because destination exists and overwrite is disabled,
but the destination file is actually correct.
This can happen when some transitory error happened during a previous submission attempt.
Hence, the transfer is correctly executed by FTS, but rucio doesn't know about it.
Returns true when the request must be marked as successful even if it was reported failed by FTS.
"""
if not request or not file_metadata:
return False
dst_file = file_metadata.get('dst_file', {})
dst_type = file_metadata.get('dst_type', None)
METRICS.counter('overwrite.check.{rsetype}.{rse}').labels(rse=file_metadata["dst_rse"], rsetype=dst_type).inc()
if 'Destination file exists and overwrite is not enabled' in (reason or ''):
if cls._dst_file_set_and_file_correct(request, dst_file):
if dst_type == 'DISK' or dst_file.get('file_on_tape'):
METRICS.counter('overwrite.ok.{rsetype}.{rse}').labels(rse=file_metadata["dst_rse"], rsetype=dst_type).inc()
return True
METRICS.counter('overwrite.fail.{rsetype}.{rse}').labels(rse=file_metadata["dst_rse"], rsetype=dst_type).inc()
return False
class FTS3CompletionMessageTransferStatusReport(Fts3TransferStatusReport):
"""
Parses FTS Completion messages received via the message queue
"""
def __init__(self, external_host, request_id, fts_message):
super().__init__(external_host=external_host, request_id=request_id)
self.fts_message = fts_message
self._transfer_id = fts_message.get('tr_id').split("__")[-1]
self._file_metadata = fts_message['file_metadata']
self._multi_sources = str(fts_message.get('job_metadata', {}).get('multi_sources', '')).lower() == 'true'
self._src_url = fts_message.get('src_url', None)
self._dst_url = fts_message.get('dst_url', None)
def initialize(self, session: "Session", logger: Callable = logging.log) -> None:
fts_message = self.fts_message
request_id = self.request_id
reason = fts_message.get('t__error_message', None)
# job_state = fts_message.get('t_final_transfer_state', None)
new_state = None
if str(fts_message['t_final_transfer_state']) == FTS_COMPLETE_STATE.OK and not fts_message.get('is_archiving'): # pylint:disable=no-member
new_state = RequestState.DONE
elif str(fts_message['t_final_transfer_state']) == FTS_COMPLETE_STATE.ERROR:
request = self.request(session)
if self._is_recoverable_fts_overwrite_error(request, reason, self._file_metadata): # pylint:disable=no-member
new_state = RequestState.DONE
else:
new_state = RequestState.FAILED
transfer_id = self._transfer_id
if new_state:
request = self.request(session)
if not request:
logger(logging.WARNING, '%s: no request with this id in the database. Skipping. external_id: %s (%s). new_state: %s', request_id, transfer_id, self.external_host, new_state)
return
if request and request['external_id'] == transfer_id and request['state'] != new_state:
src_rse_name, src_rse_id = self._find_used_source_rse(session, logger)
self._reason = reason
self._src_rse = src_rse_name
self._fts_address = request['external_host'] or self._fts_address
self.state = new_state
self.external_id = transfer_id
self.started_at = datetime.datetime.utcfromtimestamp(float(fts_message.get('tr_timestamp_start', 0)) / 1000)
self.transferred_at = datetime.datetime.utcfromtimestamp(float(fts_message.get('tr_timestamp_complete', 0)) / 1000)
self.staging_started_at = None
self.staging_finished_at = None
self.source_rse_id = src_rse_id
self.err_msg = get_transfer_error(self.state, reason)
if self.err_msg and self._file_metadata.get('src_type') == "TAPE":
self.err_msg = '[TAPE SOURCE] ' + self.err_msg
self.attributes = self._find_attribute_updates(
request=request,
new_state=new_state,
reason=reason,
overwrite_corrupted_files=config_get_bool('transfers', 'overwrite_corrupted_files', default=False, session=session),
)
elif request['external_id'] != transfer_id:
logger(logging.WARNING, "Response %s with transfer id %s is different from the request transfer id %s, will not update" % (request_id, transfer_id, request['external_id']))
else:
logger(logging.DEBUG, "Request %s is already in %s state, will not update" % (request_id, new_state))
else:
logger(logging.DEBUG, "No state change computed for %s. Skipping request update." % request_id)
class FTS3ApiTransferStatusReport(Fts3TransferStatusReport):
"""
Parses FTS api response
"""
def __init__(self, external_host, request_id, job_response, file_response, request=None):
super().__init__(external_host=external_host, request_id=request_id, request=request)
self.job_response = job_response
self.file_response = file_response
self._transfer_id = job_response.get('job_id')
self._file_metadata = file_response['file_metadata']
self._multi_sources = str(job_response['job_metadata'].get('multi_sources', '')).lower() == 'true'
self._src_url = file_response.get('source_surl', None)
self._dst_url = file_response.get('dest_surl', None)
self.logger = logging.log
def initialize(self, session: "Session", logger=logging.log) -> None:
self.logger = logger
job_response = self.job_response
file_response = self.file_response
request_id = self.request_id
file_state = file_response['file_state']
reason = file_response.get('reason', None)
new_state = None
job_state = job_response.get('job_state', None)
multi_hop = job_response.get('job_type') == FTS_JOB_TYPE.MULTI_HOP
job_state_is_final = job_state in FINAL_FTS_JOB_STATES
file_state_is_final = file_state in FINAL_FTS_FILE_STATES
if file_state_is_final:
if file_state == FTS_STATE.FINISHED:
new_state = RequestState.DONE
elif file_state == FTS_STATE.FAILED and job_state_is_final or \
file_state == FTS_STATE.FAILED and not self._multi_sources: # for multi-source transfers we must wait for the job to be in a final state
if self._is_recoverable_fts_overwrite_error(self.request(session), reason, self._file_metadata):
new_state = RequestState.DONE
else:
new_state = RequestState.FAILED
elif job_state_is_final and file_state == FTS_STATE.CANCELED:
new_state = RequestState.FAILED
elif job_state_is_final and file_state == FTS_STATE.NOT_USED:
if job_state == FTS_STATE.FINISHED:
# it is a multi-source transfer. This source wasn't used, but another one was successful
new_state = RequestState.DONE
else:
# failed multi-source or multi-hop (you cannot have unused sources in a successful multi-hop)
new_state = RequestState.FAILED
if not reason and multi_hop:
reason = 'Unused hop in multi-hop'
transfer_id = self._transfer_id
if new_state:
request = self.request(session)
if not request:
logger(logging.WARNING, '%s: no request with this id in the database. Skipping. external_id: %s (%s). new_state: %s', request_id, transfer_id, self.external_host, new_state)
return
if request['external_id'] == transfer_id and request['state'] != new_state:
src_rse_name, src_rse_id = self._find_used_source_rse(session, logger)
self._reason = reason
self._src_rse = src_rse_name
self.state = new_state
self.external_id = transfer_id
self.started_at = datetime.datetime.strptime(file_response['start_time'], '%Y-%m-%dT%H:%M:%S') if file_response['start_time'] else None
self.transferred_at = datetime.datetime.strptime(file_response['finish_time'], '%Y-%m-%dT%H:%M:%S') if file_response['finish_time'] else None
self.staging_started_at = datetime.datetime.strptime(file_response['staging_start'], '%Y-%m-%dT%H:%M:%S') if file_response['staging_start'] else None
self.staging_finished_at = datetime.datetime.strptime(file_response['staging_finished'], '%Y-%m-%dT%H:%M:%S') if file_response['staging_finished'] else None
self.source_rse_id = src_rse_id
self.err_msg = get_transfer_error(self.state, reason)
if self.err_msg and self._file_metadata.get('src_type') == "TAPE":
self.err_msg = '[TAPE SOURCE] ' + self.err_msg
self.attributes = self._find_attribute_updates(
request=request,
new_state=new_state,
reason=reason,
overwrite_corrupted_files=config_get_bool('transfers', 'overwrite_corrupted_files', default=False, session=session),
)
elif request['external_id'] != transfer_id:
logger(logging.WARNING, "Response %s with transfer id %s is different from the request transfer id %s, will not update" % (request_id, transfer_id, request['external_id']))
else:
logger(logging.DEBUG, "Request %s is already in %s state, will not update" % (request_id, new_state))
class FTS3Transfertool(Transfertool):
"""
FTS3 implementation of a Rucio transfertool
"""
external_name = 'fts3'
required_rse_attrs = ('fts', )
supported_schemes = Transfertool.supported_schemes.union(('mock', ))
def __init__(self, external_host, oidc_account=None, oidc_support: bool = False, vo=None, group_bulk=1, group_policy='rule', source_strategy=None,
max_time_in_queue=None, bring_online=43200, default_lifetime=172800, archive_timeout_override=None,
logger=logging.log):
"""
Initializes the transfertool
:param external_host: The external host where the transfertool API is running
"""
super().__init__(external_host, logger)
self.group_policy = group_policy
self.group_bulk = group_bulk
self.source_strategy = source_strategy
self.max_time_in_queue = max_time_in_queue or {}
self.bring_online = bring_online
self.default_lifetime = default_lifetime
self.archive_timeout_override = archive_timeout_override
tape_plugins = config_get_list("transfers", "fts3tape_metadata_plugins", False, "[]")
self.tape_metadata_plugins = [FTS3TapeMetadataPlugin(plugin.strip(" ")) for plugin in tape_plugins]
self.token = None
if oidc_support:
fts_hostname = urlparse(external_host).hostname
# FIXME: At the time of writing, it is not yet finalised what
# audience and/or scope is required by FTS.
token = request_token(audience='https://wlcg.cern.ch/jwt/v1/any', scope='fts')
if token is not None:
self.logger(logging.INFO, 'Using a token to authenticate with FTS instance %s', fts_hostname)
self.token = token
else:
self.logger(logging.WARNING, 'Failed to procure a token to authenticate with FTS instance %s', fts_hostname)
self.deterministic_id = config_get_bool('conveyor', 'use_deterministic_id', False, False)
self.headers = {'Content-Type': 'application/json'}
if self.external_host.startswith('https://'):
if self.token:
self.cert = None
self.verify = False
self.headers['Authorization'] = 'Bearer ' + self.token
else:
cert = _pick_cert_file(vo=vo)
self.cert = (cert, cert)
self.verify = False
else:
self.cert = None
self.verify = True # True is the default setting of a requests.* method
self.scitags_exp_id, self.scitags_activity_ids = _scitags_ids(logger=logger)
@classmethod
def _pick_fts_servers(cls, source_rse: "RseData", dest_rse: "RseData"):
"""
Pick fts servers to use for submission between the two given rse
"""
source_servers = source_rse.attributes.get('fts', None)
dest_servers = dest_rse.attributes.get('fts', None)
if source_servers is None or dest_servers is None:
return None
servers_to_use = dest_servers
if source_rse.attributes.get('sign_url', None) == 'gcs':
servers_to_use = source_servers
return servers_to_use.split(',')
@classmethod
def can_perform_transfer(cls, source_rse: "RseData", dest_rse: "RseData"):
if cls._pick_fts_servers(source_rse, dest_rse):
return True
return False
@classmethod
def submission_builder_for_path(cls, transfer_path, logger=logging.log):
vo = None
if config_get_bool('common', 'multi_vo', False, None):
vo = transfer_path[-1].rws.scope.vo
sub_path = []
fts_hosts = []
for hop in transfer_path:
hosts = cls._pick_fts_servers(hop.src.rse, hop.dst.rse)
if hosts:
fts_hosts = hosts
sub_path.append(hop)
else:
break
if len(sub_path) < len(transfer_path):
logger(logging.INFO, 'FTS3Transfertool can only submit {} hops from {}'.format(len(sub_path), [str(hop) for hop in transfer_path]))
if sub_path:
oidc_support = False
if all(_use_tokens(t) for t in sub_path):
logger(logging.DEBUG, 'OAuth2/OIDC available for transfer {}'.format([str(hop) for hop in sub_path]))
oidc_support = True
return sub_path, TransferToolBuilder(cls, external_host=fts_hosts[0], oidc_support=oidc_support, vo=vo)
else:
return [], None
def group_into_submit_jobs(self, transfer_paths):
jobs = bulk_group_transfers(
transfer_paths,
policy=self.group_policy,
group_bulk=self.group_bulk,
source_strategy=self.source_strategy,
max_time_in_queue=self.max_time_in_queue,
bring_online=self.bring_online,
default_lifetime=self.default_lifetime,
archive_timeout_override=self.archive_timeout_override,
logger=self.logger,
)
return jobs
def _file_from_transfer(self, transfer, job_params):
rws = transfer.rws
checksum_to_use = _pick_fts_checksum(transfer, path_strategy=job_params['verify_checksum'])
t_file = {
'sources': [transfer.source_url(s) for s in transfer.sources],
'destinations': [transfer.dest_url],
'metadata': {
'request_id': rws.request_id,
'scope': rws.scope,
'name': rws.name,
'activity': rws.activity,
'request_type': rws.request_type,
'src_type': "TAPE" if transfer.src.rse.is_tape_or_staging_required() else 'DISK',
'dst_type': "TAPE" if transfer.dst.rse.is_tape() else 'DISK',
'src_rse': transfer.src.rse.name,
'dst_rse': transfer.dst.rse.name,
'src_rse_id': transfer.src.rse.id,
'dest_rse_id': transfer.dst.rse.id,
'filesize': rws.byte_count,
'md5': rws.md5,
'adler32': rws.adler32
},
'filesize': rws.byte_count,
'checksum': checksum_to_use,
'selection_strategy': self.source_strategy if self.source_strategy else _configured_source_strategy(transfer.rws.activity, logger=self.logger),
'activity': rws.activity
}
if self.token:
t_file['source_tokens'] = []
for source in transfer.sources:
src_audience = determine_audience_for_rse(rse_id=source.rse.id)
src_scope = determine_scope_for_rse(rse_id=source.rse.id, scopes=['storage.read'], extra_scopes=['offline_access'])
t_file['source_tokens'].append(request_token(src_audience, src_scope))
dst_audience = determine_audience_for_rse(transfer.dst.rse.id)
# FIXME: At the time of writing, StoRM requires `storage.read` in
# order to perform a stat operation.
dst_scope = determine_scope_for_rse(transfer.dst.rse.id, scopes=['storage.modify', 'storage.read'], extra_scopes=['offline_access'])
t_file['destination_tokens'] = [request_token(dst_audience, dst_scope)]
if isinstance(self.scitags_exp_id, int):
activity_id = self.scitags_activity_ids.get(rws.activity)
if isinstance(activity_id, int):
t_file['scitag'] = self.scitags_exp_id << 6 | activity_id
for plugin in self.tape_metadata_plugins:
plugin_hints = plugin.hints(t_file['metadata'])
t_file = deep_merge_dict(source=plugin_hints, destination=t_file)
return t_file
def submit(self, transfers, job_params, timeout=None):
"""
Submit transfers to FTS3 via JSON.
:param files: List of dictionaries describing the file transfers.
:param job_params: Dictionary containing key/value pairs, for all transfers.
:param timeout: Timeout in seconds.
:returns: FTS transfer identifier.
"""
files = []
for transfer in transfers:
files.append(self._file_from_transfer(transfer, job_params))
# FTS3 expects 'davs' as the scheme identifier instead of https
for transfer_file in files:
if not transfer_file['sources'] or transfer_file['sources'] == []:
raise Exception('No sources defined')
# TODO: remove the following logic in rucio 1.31
if REWRITE_HTTPS_TO_DAVS:
new_src_urls = []
new_dst_urls = []
for url in transfer_file['sources']: