def prerun_check(project_id, run_id, parent_span=None):
log = logger.bind(pid=project_id, run_id=run_id)
log.debug("Sanity check that we need to compute run")
with DBConn() as conn:
if not check_project_exists(conn, project_id):
log.debug("Project not found. Skipping")
raise ProjectDeleted(project_id)
res = get_run(conn, run_id)
if res is None:
log.debug(f"Run not found. Skipping")
raise RunDeleted(run_id)
try:
state = get_run_state_for_update(conn, run_id)
except psycopg2.OperationalError:
log.warning("Run started in another task. Skipping this race.")
return
if state in {'running', 'completed', 'error'}:
log.warning("Run already started. Skipping")
return
log.debug("Setting run as in progress")
update_run_set_started(conn, run_id)
log.debug("Getting dp ids for compute similarity task")
dp_ids = get_dataprovider_ids(conn, project_id)
log.debug("Data providers: {}".format(dp_ids))
create_comparison_jobs.delay(project_id, run_id,
prerun_check.get_serialized_span())
log.info("CLK similarity computation scheduled")
def create_comparison_jobs(project_id, run_id, parent_span=None):
"""Schedule all the entity comparisons as sub tasks for a run.
At a high level this task:
- checks if the project and run have been deleted and if so aborts.
- retrieves metadata: the number and size of the datasets, the encoding size,
and the number and size of blocks.
- splits the work into independent "chunks" and schedules them to run in celery
- schedules the follow up task to run after all the comparisons have been computed.
"""
log = logger.bind(pid=project_id, run_id=run_id)
current_span = create_comparison_jobs.span
with DBConn() as conn:
check_run_active(conn, project_id, run_id)
dp_ids = get_dataprovider_ids(conn, project_id)
number_of_datasets = len(dp_ids)
assert number_of_datasets >= 2, "Expected at least 2 data providers"
log.info(f"Scheduling comparison of CLKs from data provider ids: "
f"{', '.join(map(str, dp_ids))}")
# Retrieve required metadata
dataset_sizes, dp_block_sizes = _retrieve_blocked_dataset_sizes(
conn, project_id, dp_ids)
log.info("Finding blocks in common between dataproviders")
common_blocks = _get_common_blocks(dp_block_sizes, dp_ids)
# We pass the encoding_size and threshold to the comparison tasks to minimize their db lookups
encoding_size = get_project_encoding_size(conn, project_id)
threshold = get_run(conn, run_id)['threshold']
log.debug("Chunking computation task")
# Create "chunks" of comparisons
chunks = _create_work_chunks(common_blocks, dp_block_sizes, dp_ids, log)
log.info(f"Chunking into {len(chunks)} computation tasks")
current_span.log_kv({
"event": "chunking",
'num_chunks': len(chunks),
'dataset-sizes': dataset_sizes
})
span_serialized = create_comparison_jobs.get_serialized_span()
# Prepare the Celery Chord that will compute all the similarity scores:
scoring_tasks = [
compute_filter_similarity.si(chunk_info, project_id, run_id, threshold,
encoding_size, span_serialized)
for chunk_info in chunks
]
if len(scoring_tasks) == 1:
scoring_tasks.append(celery_bug_fix.si())
callback_task = aggregate_comparisons.s(
project_id=project_id, run_id=run_id,
parent_span=span_serialized).on_error(
run_failed_handler.s(run_id=run_id))
log.info(f"Scheduling comparison tasks")
future = chord(scoring_tasks)(callback_task)
def get(project_id, run_id):
log = logger.bind(pid=project_id, rid=run_id)
log.info("request description of a run")
authorize_run_detail(project_id, run_id)
log.debug("request for run description authorized")
with db.DBConn() as conn:
log.debug("Retrieving run description from database")
run_object = db.get_run(conn, run_id)
return RunDescription().dump(run_object)
def get(project_id, run_id):
log = logger.bind(pid=project_id, rid=run_id)
logger.info("request description of a run")
# Check the project and run resources exist
abort_if_run_doesnt_exist(project_id, run_id)
# Check the caller has a valid results token. Yes it should be renamed.
abort_if_invalid_results_token(project_id,
request.headers.get('Authorization'))
log.info("request for run description authorized")
db_conn = db.get_db()
run_object = db.get_run(db_conn, run_id)
return RunDescription().dump(run_object)
def prerun_check(project_id, run_id, parent_span=None):
log = logger.bind(pid=project_id, run_id=run_id)
log.debug("Sanity check that we need to compute run")
# being very defensive here checking if the run state is already in the redis cache
if not is_run_missing(run_id):
log.warning(
"unexpectedly the run state is present in redis before starting")
return
with DBConn() as conn:
if not check_project_exists(conn, project_id):
log.debug("Project not found. Skipping")
raise ProjectDeleted(project_id)
res = get_run(conn, run_id)
if res is None:
log.debug(f"Run not found. Skipping")
raise RunDeleted(run_id)
try:
db_state = get_run_state_for_update(conn, run_id)
except psycopg2.OperationalError:
log.warning("Run started in another task. Skipping this race.")
return
if db_state in {'running', 'completed', 'error'}:
log.warning("Run already started. Skipping")
return
log.debug("Setting run state in db as 'running'")
update_run_set_started(conn, run_id)
log.debug("Updating redis cache for run")
set_run_state_active(run_id)
create_comparison_jobs.apply_async(kwargs={
'project_id':
project_id,
'run_id':
run_id,
'parent_span':
prerun_check.get_serialized_span()
},
link_error=run_failed_handler.s())
log.info("CLK similarity computation scheduled")
def create_comparison_jobs(project_id, run_id, parent_span=None):
log = logger.bind(pid=project_id, run_id=run_id)
with DBConn() as conn:
dp_ids = get_dataprovider_ids(conn, project_id)
assert len(dp_ids) >= 2, "Expected at least 2 data providers"
log.info(f"Starting comparison of CLKs from data provider ids: "
f"{', '.join(map(str, dp_ids))}")
current_span = create_comparison_jobs.span
if not check_project_exists(conn, project_id) or not check_run_exists(
conn, project_id, run_id):
log.info("Skipping as project or run not found in database.")
return
run_info = get_run(conn, run_id)
threshold = run_info['threshold']
dataset_sizes = get_project_dataset_sizes(conn, project_id)
if len(dataset_sizes) < 2:
log.warning("Unexpected number of dataset sizes in db. Stopping")
update_run_mark_failure(conn, run_id)
return
encoding_size = get_project_encoding_size(conn, project_id)
log.info(f"Computing similarity for "
f"{' x '.join(map(str, dataset_sizes))} entities")
current_span.log_kv({"event": 'get-dataset-sizes'})
filters_object_filenames = tuple(
get_filter_metadata(conn, dp_id) for dp_id in dp_ids)
current_span.log_kv({"event": 'get-metadata'})
log.debug("Chunking computation task")
chunk_infos = tuple(
anonlink.concurrency.split_to_chunks(Config.CHUNK_SIZE_AIM,
dataset_sizes=dataset_sizes))
# Save filenames with chunk information.
for chunk_info in chunk_infos:
for chunk_dp_info in chunk_info:
chunk_dp_index = chunk_dp_info['datasetIndex']
chunk_dp_store_filename = filters_object_filenames[chunk_dp_index]
chunk_dp_info['storeFilename'] = chunk_dp_store_filename
log.info(f"Chunking into {len(chunk_infos)} computation tasks")
current_span.log_kv({"event": "chunking", 'num_chunks': len(chunk_infos)})
span_serialized = create_comparison_jobs.get_serialized_span()
# Prepare the Celery Chord that will compute all the similarity scores:
scoring_tasks = [
compute_filter_similarity.si(chunk_info, project_id, run_id, threshold,
encoding_size, span_serialized)
for chunk_info in chunk_infos
]
if len(scoring_tasks) == 1:
scoring_tasks.append(celery_bug_fix.si())
callback_task = aggregate_comparisons.s(
project_id, run_id,
parent_span=span_serialized).on_error(on_chord_error.s(run_id=run_id))
future = chord(scoring_tasks)(callback_task)
def create_comparison_jobs(project_id, run_id, parent_span=None):
log = logger.bind(pid=project_id, run_id=run_id)
with DBConn() as conn:
dp_ids = get_dataprovider_ids(conn, project_id)
assert len(dp_ids) >= 2, "Expected at least 2 data providers"
log.info("Starting comparison of CLKs from data provider ids: {}, {}".format(dp_ids[0], dp_ids[1]))
current_span = create_comparison_jobs.span
if not check_project_exists(conn, project_id) or not check_run_exists(conn, project_id, run_id):
log.info("Skipping as project or run not found in database.")
return
run_info = get_run(conn, run_id)
threshold = run_info['threshold']
dataset_sizes = get_project_dataset_sizes(conn, project_id)
if len(dataset_sizes) < 2:
log.warning("Unexpected number of dataset sizes in db. Stopping")
update_run_mark_failure(conn, run_id)
return
else:
lenf1, lenf2 = dataset_sizes
encoding_size = get_project_encoding_size(conn, project_id)
size = lenf1 * lenf2
log.info("Computing similarity for {} x {} entities".format(lenf1, lenf2))
current_span.log_kv({"event": 'get-dataset-sizes'})
filters1_object_filename = get_filter_metadata(conn, dp_ids[0])
filters2_object_filename = get_filter_metadata(conn, dp_ids[1])
current_span.log_kv({"event": 'get-metadata'})
log.debug("Chunking computation task")
chunk_size = Config.get_task_chunk_size(size, threshold)
if chunk_size is None:
chunk_size = max(lenf1, lenf2)
log.info("Chunks will contain {} entities per task".format(chunk_size))
update_run_chunk(conn, project_id, chunk_size)
job_chunks = []
dp1_chunks = []
dp2_chunks = []
for chunk_start_index_dp1 in range(0, lenf1, chunk_size):
dp1_chunks.append(
(filters1_object_filename, chunk_start_index_dp1, min(chunk_start_index_dp1 + chunk_size, lenf1))
)
for chunk_start_index_dp2 in range(0, lenf2, chunk_size):
dp2_chunks.append(
(filters2_object_filename, chunk_start_index_dp2, min(chunk_start_index_dp2 + chunk_size, lenf2))
)
# Every chunk in dp1 has to be run against every chunk in dp2
for dp1_chunk in dp1_chunks:
for dp2_chunk in dp2_chunks:
job_chunks.append((dp1_chunk, dp2_chunk, ))
log.info("Chunking into {} computation tasks each with (at most) {} entities.".format(
len(job_chunks), chunk_size))
current_span.log_kv({"event": "chunking", "chunksize": chunk_size, 'num_chunks': len(job_chunks)})
span_serialized = create_comparison_jobs.get_serialized_span()
# Prepare the Celery Chord that will compute all the similarity scores:
scoring_tasks = [compute_filter_similarity.si(
chunk_dp1,
chunk_dp2,
project_id,
run_id,
threshold,
encoding_size,
span_serialized
) for chunk_dp1, chunk_dp2 in job_chunks]
if len(scoring_tasks) == 1:
scoring_tasks.append(celery_bug_fix.si())
callback_task = aggregate_comparisons.s(project_id, run_id, parent_span=span_serialized).on_error(
on_chord_error.s(run_id=run_id))
future = chord(scoring_tasks)(callback_task)