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rucio-replica-recoverer
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rucio-replica-recoverer
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#!/usr/bin/env python3
# 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.
"""
Replica-Recoverer is a daemon that declares suspicious replicas as bad if they are found available on other RSE.
Consequently, automatic replica recovery is triggered via necromancer daemon, which creates a rule for such bad replicas.
"""
import argparse
import signal
from rucio.daemons.replicarecoverer.suspicious_replica_recoverer import run, stop
def get_parser():
"""
Returns the argparse parser.
"""
parser = argparse.ArgumentParser(description='''
Replica-Recoverer is a daemon that declares suspicious replicas
that are available on other RSE as bad. Consequently, automatic
replica recovery is triggered via necromancer daemon,
which creates a rule for such bad replicas.''', epilog='''
Preparing RSEs and DIDs for testing this daemon from rucio docker:
-------------------------------------------------------------------
$ sudo docker exec -it dev_rucio_1 /bin/bash
Adding the RSEs to rucio DB:
$ rucio-admin rse add MOCK_SUSPICIOUS
$ rucio-admin rse set-attribute --rse MOCK_SUSPICIOUS --key backend_type --value file
$ rucio-admin rse set-attribute --rse MOCK_SUSPICIOUS --key storage_usage_tool --value 'rucio.rse.protocols.posix.Default.getSpace'
$ rucio-admin rse add-protocol --hostname localhost --scheme file --prefix '/tmp/rucio_rse1/' --space-token 'ATLASDATADISK1' --web-service-path '/srm/managerv2?SFN=' --domain-json '{ "lan": { "read": 1, "write": 1, "delete": 1 }, "wan": { "read": 1, "write": 1, "delete": 1}}' --impl 'rucio.rse.protocols.posix.Default' MOCK_SUSPICIOUS
$ rucio-admin rse info MOCK_SUSPICIOUS
$ rucio-admin rse add MOCK_RECOVERY
$ rucio-admin rse set-attribute --rse MOCK_RECOVERY --key backend_type --value POSIX
$ rucio-admin rse set-attribute --rse MOCK_RECOVERY --key storage_usage_tool --value 'rucio.rse.protocols.posix.Default.getSpace'
$ rucio-admin rse add-protocol --hostname localhost --scheme file --prefix '/tmp/rucio_rse2/' --space-token 'ATLASDATADISK2' --web-service-path '/srm/managerv2?SFN=' --domain-json '{ "lan": { "read": 1, "write": 1, "delete": 1 }, "wan": { "read": 1, "write": 1, "delete": 1}}' --impl 'rucio.rse.protocols.posix.Default' MOCK_RECOVERY
$ rucio-admin rse info MOCK_RECOVERY
For testing, we create the following files:
-------------------------------------------------------------------
Name MOCK_RECOVERY MOCK_SUSPICIOUS BAD (on MOCK_SUSPICIOUS) SUSPICIOUS (on MOCK_SUSPICIOUS)
file_available_suspicious yes yes no yes
file_available_suspicious_and_bad yes yes yes yes
file_notavailable_suspicious unavailable yes no yes
Only file_available_suspicious should be the one on which the daemon takes action and declares it as bad.
$ id0=`uuidgen`
$ id1=`uuidgen`
$ id2=`uuidgen`
$ id3=`uuidgen`
$ echo "file available on MOCK_RECOVERY and decalred suspicious on MOCK_SUSPICIOUS (11 times)" > /tmp/file_available_suspicious'_'$id1
$ echo "file available on MOCK_RECOVERY and declared suspicious on MOCK_SUSPICIOUS (11 times) and 1 time bad/deleted/lost on MOCK_SUSPICIOUS" > /tmp/file_available_suspicious_and_bad'_'$id2
$ echo "file declared as unavailable on MOCK_RECOVERY and declared as suspicious 11 times on MOCK_SUSPICIOUS" > /tmp/file_notavailable_suspicious'_'$id3
Uploading the files created above to rucio:
-------------------------------------------------------------------
rucio add-dataset mock:dataset_of_suspicious_replicas'_'$id0
Added mock:dataset_of_suspicious_replicas_2ba45524-860b-43f9-a601-6ccec2c46778
$ rucio add-rule mock:dataset_of_suspicious_replicas'_'$id0 1 MOCK_SUSPICIOUS
$ rucio add-rule --source-replica-expression MOCK_SUSPICIOUS mock:dataset_of_suspicious_replicas'_'$id0 1 MOCK_RECOVERY
$ rucio list-rules mock:dataset_of_suspicious_replicas'_'$id0
ID ACCOUNT SCOPE:NAME STATE[OK/REPL/STUCK] RSE_EXPRESSION COPIES EXPIRES (UTC) CREATED (UTC)
-------------------------------- --------- ------------------------------------------------------------------------ ---------------------- ---------------- -------- --------------- -------------------
2a1a078b66ca4e209cc20a5826125334 root mock:dataset_of_suspicious_replicas_2ba45524-860b-43f9-a601-6ccec2c46778 OK[0/0/0] MOCK_RECOVERY 1 2019-02-19 14:12:30
8c15d2f8e94a459a86a488055a10d068 root mock:dataset_of_suspicious_replicas_2ba45524-860b-43f9-a601-6ccec2c46778 OK[0/0/0] MOCK_SUSPICIOUS 1 2019-02-19 14:12:28
$ rucio upload --scope mock --rse MOCK_SUSPICIOUS --name file_available_suspicious'_'$id1 /tmp/file_available_suspicious'_'$id1
$ rucio upload --scope mock --rse MOCK_SUSPICIOUS --name file_available_suspicious_and_bad'_'$id2 /tmp/file_available_suspicious_and_bad'_'$id2
$ rucio upload --scope mock --rse MOCK_SUSPICIOUS --name file_notavailable_suspicious'_'$id3 /tmp/file_notavailable_suspicious'_'$id3
$ rucio upload --scope mock --rse MOCK_RECOVERY --name file_available_suspicious'_'$id1 /tmp/file_available_suspicious'_'$id1
$ rucio upload --scope mock --rse MOCK_RECOVERY --name file_available_suspicious_and_bad'_'$id2 /tmp/file_available_suspicious_and_bad'_'$id2
$ rucio upload --scope mock --rse MOCK_RECOVERY --name file_notavailable_suspicious'_'$id3 /tmp/file_notavailable_suspicious'_'$id3
[...]
$ rucio attach mock:dataset_of_suspicious_replicas'_'$id0 mock:file_available_suspicious'_'$id1
$ rucio attach mock:dataset_of_suspicious_replicas'_'$id0 mock:file_available_suspicious_and_bad'_'$id2
$ rucio attach mock:dataset_of_suspicious_replicas'_'$id0 mock:file_notavailable_suspicious'_'$id3
[...]
$ rucio list-file-replicas mock:file_available_suspicious'_'$id1
+---------+----------------------------------------------------------------+------------+-----------+------------------------------------------------------------------------------------------------------------------------------+
| SCOPE | NAME | FILESIZE | ADLER32 | RSE: REPLICA |
|---------+----------------------------------------------------------------+------------+-----------+------------------------------------------------------------------------------------------------------------------------------|
| mock | file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e | 87.000 B | 206b1c91 | MOCK_SUSPICIOUS: file://localhost:0/tmp/rucio_rse1/mock/1f/6b/file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e |
| mock | file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e | 87.000 B | 206b1c91 | MOCK_RECOVERY: file://localhost:0/tmp/rucio_rse2/mock/1f/6b/file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e |
+---------+----------------------------------------------------------------+------------+-----------+------------------------------------------------------------------------------------------------------------------------------+
$ rucio list-file-replicas mock:file_available_suspicious_and_bad'_'$id2
+---------+------------------------------------------------------------------------+------------+-----------+--------------------------------------------------------------------------------------------------------------------------------------+
| SCOPE | NAME | FILESIZE | ADLER32 | RSE: REPLICA |
|---------+------------------------------------------------------------------------+------------+-----------+--------------------------------------------------------------------------------------------------------------------------------------|
| mock | file_available_suspicious_and_bad_46964411-95d4-46c4-a973-72c045195835 | 134.000 B | dfdf2bff | MOCK_SUSPICIOUS: file://localhost:0/tmp/rucio_rse1/mock/1d/2d/file_available_suspicious_and_bad_46964411-95d4-46c4-a973-72c045195835 |
| mock | file_available_suspicious_and_bad_46964411-95d4-46c4-a973-72c045195835 | 134.000 B | dfdf2bff | MOCK_RECOVERY: file://localhost:0/tmp/rucio_rse2/mock/1d/2d/file_available_suspicious_and_bad_46964411-95d4-46c4-a973-72c045195835 |
+---------+------------------------------------------------------------------------+------------+-----------+--------------------------------------------------------------------------------------------------------------------------------------+
$ rucio list-file-replicas mock:file_notavailable_suspicious'_'$id3
+---------+-------------------------------------------------------------------+------------+-----------+---------------------------------------------------------------------------------------------------------------------------------+
| SCOPE | NAME | FILESIZE | ADLER32 | RSE: REPLICA |
|---------+-------------------------------------------------------------------+------------+-----------+---------------------------------------------------------------------------------------------------------------------------------|
| mock | file_notavailable_suspicious_6157f589-80db-492c-acdd-ef5f0c45112f | 101.000 B | 0c14223f | MOCK_SUSPICIOUS: file://localhost:0/tmp/rucio_rse1/mock/7d/a6/file_notavailable_suspicious_6157f589-80db-492c-acdd-ef5f0c45112f |
| mock | file_notavailable_suspicious_6157f589-80db-492c-acdd-ef5f0c45112f | 101.000 B | 0c14223f | MOCK_RECOVERY: file://localhost:0/tmp/rucio_rse2/mock/7d/a6/file_notavailable_suspicious_6157f589-80db-492c-acdd-ef5f0c45112f |
+---------+-------------------------------------------------------------------+------------+-----------+---------------------------------------------------------------------------------------------------------------------------------+
Modifying the file statuses in the DB:
--------------------------------------
$ python
# the paths below point to MOCK_SUSPICIOUS RSE (.../rucio_rse1)
$$ file1 = ['file://localhost:0/tmp/rucio_rse1/mock/1f/6b/file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e',]
$$ file2 = ['file://localhost:0/tmp/rucio_rse1/mock/1d/2d/file_available_suspicious_and_bad_46964411-95d4-46c4-a973-72c045195835',]
$$ file3 = ['file://localhost:0/tmp/rucio_rse1/mock/7d/a6/file_notavailable_suspicious_6157f589-80db-492c-acdd-ef5f0c45112f' ]
$$ from rucio.client.replicaclient import ReplicaClient
$$ replica_client = ReplicaClient()
$$ import time
$$ for i in range(11):
replica_client.declare_suspicious_file_replicas(file1, 'This is a good reason')
replica_client.declare_suspicious_file_replicas(file2, 'This is a good reason')
replica_client.declare_suspicious_file_replicas(file3, 'This is a good reason')
time.sleep(1)
# Declaring file2 bad on MOCK_SUSPICIOUS:
---------------------------------------
$$ replica_client.declare_bad_file_replicas(file2, 'This is a good reason')
# Update replica state of 'file_notavailable_suspicious'_'$id1' on MOCK_RECOVERY to 'UNAVAILABLE'
# (change the file name below according to the info from rucio !):
-----------------------------------------------------------------------------------------------
$$ replica_client.update_replicas_states('MOCK_RECOVERY', [{'scope':'mock', 'name':'file_notavailable_suspicious_6157f589-80db-492c-acdd-ef5f0c45112f', 'state':'U'}])
# Checking the results of the file status changes:
------------------------------------------------
$$ from rucio.core.replica import get_suspicious_files
$$ from datetime import datetime, timedelta
$$ from_date = datetime.now() - timedelta(days=3)
$$ from rucio.core.replica import list_bad_replicas_status
$$ get_suspicious_files('MOCK_SUSPICIOUS',from_date,10)
[{'created_at': datetime.datetime(2019, 2, 19, 14, 12, 56), 'scope': 'mock', 'cnt': 11L, 'name': 'file_notavailable_suspicious_6157f589-80db-492c-acdd-ef5f0c45112f', 'rse': 'MOCK_SUSPICIOUS'},
{'created_at': datetime.datetime(2019, 2, 19, 14, 12, 48), 'scope': 'mock', 'cnt': 11L, 'name': 'file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e', 'rse': 'MOCK_SUSPICIOUS'}]
$$ list_bad_replicas_status(rse='MOCK_SUSPICIOUS', younger_than=from_date)
[{'name': 'file_available_suspicious_and_bad_46964411-95d4-46c4-a973-72c045195835', 'rse': 'MOCK_SUSPICIOUS', 'created_at': datetime.datetime(2019, 2, 19, 14, 18, 33), 'updated_at': datetime.datetime(2019, 2, 19, 14, 18, 33), 'state': BAD, 'scope': 'mock'}]
$$ exit()
Run the daemon:
---------------
$ python bin/rucio-replica-recoverer --run-once --rse-expression='MOCK_SUSPICIOUS'
Terminal output:
----------------
2019-02-19 14:39:24,114 709 INFO replica_recoverer[0/0]: ready to query replicas at RSEs like *MOCK*, declared as suspicious in the last 3 days at least 10 times and which are available on other RSEs.
2019-02-19 14:39:24,124 709 INFO replica_recoverer[0/0]: suspicious replica query took 0.0101511478424 seconds, total of 1 replicas were found. [{'scope': 'mock', 'cnt': 11L, 'name': 'file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e', 'rse': 'MOCK_SUSPICIOUS'}]
2019-02-19 14:39:24,125 709 INFO replica_recoverer[0/0]: looking for replica surls.
2019-02-19 14:39:24,160 709 INFO replica_recoverer[0/0]: found 1/1 surls (took 0.035572052002 seconds) - declaring them as bad replicas now.
2019-02-19 14:39:24,160 709 INFO replica_recoverer[0/0]: ready to declare 1 bad replica(s) on MOCK_SUSPICIOUS: ['file://localhost:0/tmp/rucio_rse1/mock/1f/6b/file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e'].
2019-02-19 14:39:24,188 709 INFO replica_recoverer[0/0]: finished declaring bad replicas on MOCK_SUSPICIOUS.
2019-02-19 14:39:24,192 709 INFO replica_recoverer[0/0]: graceful stop done
# Checking the results of the file status changes:
------------------------------------------------
$ python
$$ from rucio.core.replica import get_suspicious_files
$$ from datetime import datetime, timedelta
$$ from_date = datetime.now() - timedelta(days=3)
$$ from rucio.core.replica import list_bad_replicas_status
$$ from rucio.common.constants import SuspiciousAvailability
$$ get_suspicious_files('MOCK_SUSPICIOUS',younger_than=from_date, nattempts=10, is_suspicious=True, available_elsewhere=SuspiciousAvailability["EXIST_COPIES"].value)
>>> get_suspicious_files('MOCK_SUSPICIOUS',younger_than=from_date, nattempts=10, is_suspicious=True, available_elsewhere=SuspiciousAvailability["EXIST_COPIES"].value)
[]
$$ list_bad_replicas_status(rse='MOCK_SUSPICIOUS', younger_than=from_date)
[{'name': 'file_available_suspicious_5180be3e-4ebc-4c34-b528-efbfd09f067e', 'rse': 'MOCK_SUSPICIOUS', 'created_at': datetime.datetime(2019, 2, 19, 14, 39, 24), 'updated_at': datetime.datetime(2019, 2, 19, 14, 39, 24), 'state': BAD, 'scope': 'mock'},
{'name': 'file_available_suspicious_and_bad_46964411-95d4-46c4-a973-72c045195835', 'rse': 'MOCK_SUSPICIOUS', 'created_at': datetime.datetime(2019, 2, 19, 14, 18, 33), 'updated_at': datetime.datetime(2019, 2, 19, 14, 18, 33), 'state': BAD, 'scope': 'mock'}]
$$ exit()
When run in multi-VO mode, by default the daemon will run on RSEs from all VOs::
$ rucio-replica-recoverer --run-once
2020-07-28 15:15:14,151 5461 INFO replica_recoverer: This instance will work on VOs: def, abc, xyz, 123
By using the ``--vos`` argument only the VO or VOs specified will be affected::
$ rucio-replica-recoverer --run-once --vos abc xyz
2020-07-28 15:16:36,066 5474 INFO replica_recoverer: This instance will work on VOs: abc, xyz
Note that attempting the use the ``--vos`` argument when in single-VO mode will have no affect::
$ rucio-replica-recoverer --run-once --vos abc xyz
2020-07-28 15:21:33,349 5488 WARNING Ignoring argument vos, this is only applicable in a multi-VO setup.
''', formatter_class=argparse.RawDescriptionHelpFormatter) # NOQA: E501
parser.add_argument("--nattempts", action="store", default=5, help='Minimum count of suspicious file replica appearance in bad_replicas table. Default value is 5.')
parser.add_argument("--younger-than", action="store", default=5, help='Consider all file replicas logged in bad_replicas table since speicified number of younger-than days. Default value is 5.')
parser.add_argument('--vos', nargs='+', type=str, help='Optional list of VOs to consider. Only used in multi-VO mode.')
parser.add_argument("--run-once", action="store_true", default=False, help='One iteration only.')
parser.add_argument("--limit-suspicious-files-on-rse", action="store", default=5, help='Maximum number of suspicious replicas on an RSE before that RSE is considered problematic and the suspicious replicas on that RSE are declared "TEMPORARY_UNAVAILABLE". Default value is 5.')
parser.add_argument('--json-file-name', action="store", default="/opt/rucio/etc/suspicious_replica_recoverer.json", type=str, help='Name of the json file that that contains the policies which will be used by the suspicious replica recoverer.')
parser.add_argument('--sleep-time', action="store", default=3600, type=int, help='Concurrency control: Thread sleep time after each chunk of work.')
parser.add_argument('--active-mode', action="store_true", default=False, help='If NOT specified, the daemon will run without taking any actions on any files. In either case, the log file will be produced normally.')
return parser
if __name__ == "__main__":
signal.signal(signal.SIGTERM, stop)
PARSER = get_parser()
ARGS = PARSER.parse_args()
try:
run(once=ARGS.run_once, younger_than=ARGS.younger_than, nattempts=ARGS.nattempts, vos=ARGS.vos, limit_suspicious_files_on_rse=ARGS.limit_suspicious_files_on_rse, json_file_name=ARGS.json_file_name, sleep_time=ARGS.sleep_time, active_mode=ARGS.active_mode)
except KeyboardInterrupt:
stop()