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Source code for dagster.core.storage.event_log.sql_event_log
import logging
from abc import abstractmethod
from collections import defaultdict
from datetime import datetime
import sqlalchemy as db
from dagster import check, seven
from dagster.core.definitions.events import AssetKey, Materialization
from dagster.core.errors import DagsterEventLogInvalidForRun
from dagster.core.events import DagsterEventType
from dagster.core.events.log import EventRecord
from dagster.core.execution.stats import RunStepKeyStatsSnapshot, StepEventStatus
from dagster.serdes import deserialize_json_to_dagster_namedtuple, serialize_dagster_namedtuple
from dagster.utils import datetime_as_float, utc_datetime_from_timestamp
from ..pipeline_run import PipelineRunStatsSnapshot
from .base import EventLogStorage, extract_asset_events_cursor
from .migration import REINDEX_DATA_MIGRATIONS, SECONDARY_INDEX_ASSET_KEY
from .schema import AssetKeyTable, SecondaryIndexMigrationTable, SqlEventLogStorageTable
[docs]class SqlEventLogStorage(EventLogStorage):
"""Base class for SQL backed event log storages.
Distinguishes between run-based connections and index connections in order to support run-level
sharding, while maintaining the ability to do cross-run queries
"""
@abstractmethod
def run_connection(self, run_id):
"""Context manager yielding a connection to access the event logs for a specific run.
Args:
run_id (Optional[str]): Enables those storages which shard based on run_id, e.g.,
SqliteEventLogStorage, to connect appropriately.
"""
@abstractmethod
def index_connection(self):
"""Context manager yielding a connection to access cross-run indexed tables.
Args:
run_id (Optional[str]): Enables those storages which shard based on run_id, e.g.,
SqliteEventLogStorage, to connect appropriately.
"""
@abstractmethod
def upgrade(self):
"""This method should perform any schema migrations necessary to bring an
out-of-date instance of the storage up to date.
"""
def prepare_insert_event(self, event):
"""Helper method for preparing the event log SQL insertion statement. Abstracted away to
have a single place for the logical table representation of the event, while having a way
for SQL backends to implement different execution implementations for `store_event`. See
the `dagster-postgres` implementation which overrides the generic SQL implementation of
`store_event`.
"""
dagster_event_type = None
asset_key_str = None
partition = None
step_key = event.step_key
if event.is_dagster_event:
dagster_event_type = event.dagster_event.event_type_value
step_key = event.dagster_event.step_key
if event.dagster_event.asset_key:
check.inst_param(event.dagster_event.asset_key, "asset_key", AssetKey)
asset_key_str = event.dagster_event.asset_key.to_string()
if event.dagster_event.partition:
partition = event.dagster_event.partition
# https://stackoverflow.com/a/54386260/324449
return SqlEventLogStorageTable.insert().values( # pylint: disable=no-value-for-parameter
run_id=event.run_id,
event=serialize_dagster_namedtuple(event),
dagster_event_type=dagster_event_type,
# Postgres requires a datetime that is in UTC but has no timezone info set
# in order to be stored correctly
timestamp=datetime.utcfromtimestamp(event.timestamp),
step_key=step_key,
asset_key=asset_key_str,
partition=partition,
)
def store_asset(self, event):
check.inst_param(event, "event", EventRecord)
if not event.is_dagster_event or not event.dagster_event.asset_key:
return
materialization = event.dagster_event.step_materialization_data.materialization
with self.index_connection() as conn:
try:
conn.execute(
AssetKeyTable.insert().values( # pylint: disable=no-value-for-parameter
asset_key=event.dagster_event.asset_key.to_string(),
last_materialization=serialize_dagster_namedtuple(materialization),
last_run_id=event.run_id,
)
)
except db.exc.IntegrityError:
conn.execute(
AssetKeyTable.update() # pylint: disable=no-value-for-parameter
.values(
last_materialization=serialize_dagster_namedtuple(materialization),
last_run_id=event.run_id,
)
.where(
AssetKeyTable.c.asset_key == event.dagster_event.asset_key.to_string(),
)
)
def store_event(self, event):
"""Store an event corresponding to a pipeline run.
Args:
event (EventRecord): The event to store.
"""
check.inst_param(event, "event", EventRecord)
insert_event_statement = self.prepare_insert_event(event)
run_id = event.run_id
with self.run_connection(run_id) as conn:
conn.execute(insert_event_statement)
if event.is_dagster_event and event.dagster_event.asset_key:
self.store_asset(event)
def get_logs_for_run_by_log_id(self, run_id, cursor=-1):
check.str_param(run_id, "run_id")
check.int_param(cursor, "cursor")
check.invariant(
cursor >= -1,
"Don't know what to do with negative cursor {cursor}".format(cursor=cursor),
)
# cursor starts at 0 & auto-increment column starts at 1 so adjust
cursor = cursor + 1
query = (
db.select([SqlEventLogStorageTable.c.id, SqlEventLogStorageTable.c.event])
.where(SqlEventLogStorageTable.c.run_id == run_id)
.where(SqlEventLogStorageTable.c.id > cursor)
.order_by(SqlEventLogStorageTable.c.id.asc())
)
with self.run_connection(run_id) as conn:
results = conn.execute(query).fetchall()
events = {}
try:
for (
record_id,
json_str,
) in results:
events[record_id] = check.inst_param(
deserialize_json_to_dagster_namedtuple(json_str), "event", EventRecord
)
except (seven.JSONDecodeError, check.CheckError) as err:
raise DagsterEventLogInvalidForRun(run_id=run_id) from err
return events
def get_logs_for_run(self, run_id, cursor=-1):
"""Get all of the logs corresponding to a run.
Args:
run_id (str): The id of the run for which to fetch logs.
cursor (Optional[int]): Zero-indexed logs will be returned starting from cursor + 1,
i.e., if cursor is -1, all logs will be returned. (default: -1)
"""
check.str_param(run_id, "run_id")
check.int_param(cursor, "cursor")
check.invariant(
cursor >= -1,
"Don't know what to do with negative cursor {cursor}".format(cursor=cursor),
)
events_by_id = self.get_logs_for_run_by_log_id(run_id, cursor)
return [event for id, event in sorted(events_by_id.items(), key=lambda x: x[0])]
def get_stats_for_run(self, run_id):
check.str_param(run_id, "run_id")
query = (
db.select(
[
SqlEventLogStorageTable.c.dagster_event_type,
db.func.count().label("n_events_of_type"),
db.func.max(SqlEventLogStorageTable.c.timestamp).label("last_event_timestamp"),
]
)
.where(SqlEventLogStorageTable.c.run_id == run_id)
.group_by("dagster_event_type")
)
with self.run_connection(run_id) as conn:
results = conn.execute(query).fetchall()
try:
counts = {}
times = {}
for result in results:
(dagster_event_type, n_events_of_type, last_event_timestamp) = result
if dagster_event_type:
counts[dagster_event_type] = n_events_of_type
times[dagster_event_type] = last_event_timestamp
enqueued_time = times.get(DagsterEventType.PIPELINE_ENQUEUED.value, None)
launch_time = times.get(DagsterEventType.PIPELINE_STARTING.value, None)
start_time = times.get(DagsterEventType.PIPELINE_START.value, None)
end_time = times.get(
DagsterEventType.PIPELINE_SUCCESS.value,
times.get(
DagsterEventType.PIPELINE_FAILURE.value,
times.get(DagsterEventType.PIPELINE_CANCELED.value, None),
),
)
return PipelineRunStatsSnapshot(
run_id=run_id,
steps_succeeded=counts.get(DagsterEventType.STEP_SUCCESS.value, 0),
steps_failed=counts.get(DagsterEventType.STEP_FAILURE.value, 0),
materializations=counts.get(DagsterEventType.ASSET_MATERIALIZATION.value, 0),
expectations=counts.get(DagsterEventType.STEP_EXPECTATION_RESULT.value, 0),
enqueued_time=datetime_as_float(enqueued_time) if enqueued_time else None,
launch_time=datetime_as_float(launch_time) if launch_time else None,
start_time=datetime_as_float(start_time) if start_time else None,
end_time=datetime_as_float(end_time) if end_time else None,
)
except (seven.JSONDecodeError, check.CheckError) as err:
raise DagsterEventLogInvalidForRun(run_id=run_id) from err
def get_step_stats_for_run(self, run_id, step_keys=None):
check.str_param(run_id, "run_id")
check.opt_list_param(step_keys, "step_keys", of_type=str)
STEP_STATS_EVENT_TYPES = [
DagsterEventType.STEP_START.value,
DagsterEventType.STEP_SUCCESS.value,
DagsterEventType.STEP_SKIPPED.value,
DagsterEventType.STEP_FAILURE.value,
DagsterEventType.STEP_RESTARTED.value,
]
by_step_query = (
db.select(
[
SqlEventLogStorageTable.c.step_key,
SqlEventLogStorageTable.c.dagster_event_type,
db.func.max(SqlEventLogStorageTable.c.timestamp).label("timestamp"),
db.func.count(SqlEventLogStorageTable.c.id).label("n_events_of_type_for_step"),
]
)
.where(SqlEventLogStorageTable.c.run_id == run_id)
.where(SqlEventLogStorageTable.c.step_key != None)
.where(SqlEventLogStorageTable.c.dagster_event_type.in_(STEP_STATS_EVENT_TYPES))
)
if step_keys:
by_step_query = by_step_query.where(SqlEventLogStorageTable.c.step_key.in_(step_keys))
by_step_query = by_step_query.group_by(
SqlEventLogStorageTable.c.step_key,
SqlEventLogStorageTable.c.dagster_event_type,
)
with self.run_connection(run_id) as conn:
results = conn.execute(by_step_query).fetchall()
by_step_key = defaultdict(dict)
for result in results:
step_key = result.step_key
if result.dagster_event_type == DagsterEventType.STEP_START.value:
by_step_key[step_key]["start_time"] = (
datetime_as_float(result.timestamp) if result.timestamp else None
)
by_step_key[step_key]["attempts"] = by_step_key[step_key].get("attempts", 0) + 1
if result.dagster_event_type == DagsterEventType.STEP_RESTARTED.value:
by_step_key[step_key]["attempts"] = (
# In case we see step retarted events but not a step started event, we want to
# only count the restarted events, since the attempt count represents
# the number of times we have successfully started runnning the step
by_step_key[step_key].get("attempts", 0)
+ result.n_events_of_type_for_step
)
if result.dagster_event_type == DagsterEventType.STEP_FAILURE.value:
by_step_key[step_key]["end_time"] = (
datetime_as_float(result.timestamp) if result.timestamp else None
)
by_step_key[step_key]["status"] = StepEventStatus.FAILURE
if result.dagster_event_type == DagsterEventType.STEP_SUCCESS.value:
by_step_key[step_key]["end_time"] = (
datetime_as_float(result.timestamp) if result.timestamp else None
)
by_step_key[step_key]["status"] = StepEventStatus.SUCCESS
if result.dagster_event_type == DagsterEventType.STEP_SKIPPED.value:
by_step_key[step_key]["end_time"] = (
datetime_as_float(result.timestamp) if result.timestamp else None
)
by_step_key[step_key]["status"] = StepEventStatus.SKIPPED
materializations = defaultdict(list)
expectation_results = defaultdict(list)
raw_event_query = (
db.select([SqlEventLogStorageTable.c.event])
.where(SqlEventLogStorageTable.c.run_id == run_id)
.where(SqlEventLogStorageTable.c.step_key != None)
.where(
SqlEventLogStorageTable.c.dagster_event_type.in_(
[
DagsterEventType.ASSET_MATERIALIZATION.value,
DagsterEventType.STEP_EXPECTATION_RESULT.value,
]
)
)
.order_by(SqlEventLogStorageTable.c.id.asc())
)
if step_keys:
raw_event_query = raw_event_query.where(
SqlEventLogStorageTable.c.step_key.in_(step_keys)
)
with self.run_connection(run_id) as conn:
results = conn.execute(raw_event_query).fetchall()
try:
for (json_str,) in results:
event = check.inst_param(
deserialize_json_to_dagster_namedtuple(json_str), "event", EventRecord
)
if event.dagster_event.event_type == DagsterEventType.ASSET_MATERIALIZATION:
materializations[event.step_key].append(
event.dagster_event.event_specific_data.materialization
)
elif event.dagster_event.event_type == DagsterEventType.STEP_EXPECTATION_RESULT:
expectation_results[event.step_key].append(
event.dagster_event.event_specific_data.expectation_result
)
except (seven.JSONDecodeError, check.CheckError) as err:
raise DagsterEventLogInvalidForRun(run_id=run_id) from err
return [
RunStepKeyStatsSnapshot(
run_id=run_id,
step_key=step_key,
status=value.get("status"),
start_time=value.get("start_time"),
end_time=value.get("end_time"),
materializations=materializations.get(step_key),
expectation_results=expectation_results.get(step_key),
attempts=value.get("attempts"),
)
for step_key, value in by_step_key.items()
]
def reindex(self, print_fn=None, force=False):
"""Call this method to run any data migrations, reindexing to build summary tables."""
# Should be overridden by SqliteEventLogStorage and other storages that shard based on
# run_id
for migration_name, migration_fn in REINDEX_DATA_MIGRATIONS.items():
if self.has_secondary_index(migration_name):
if not force:
if print_fn:
print_fn("Skipping already reindexed summary: {}".format(migration_name))
continue
if print_fn:
print_fn("Starting reindex: {}".format(migration_name))
migration_fn()(self, print_fn)
self.enable_secondary_index(migration_name)
if print_fn:
print_fn("Finished reindexing: {}".format(migration_name))
def wipe(self):
"""Clears the event log storage."""
# Should be overridden by SqliteEventLogStorage and other storages that shard based on
# run_id
# https://stackoverflow.com/a/54386260/324449
with self.run_connection(run_id=None) as conn:
conn.execute(SqlEventLogStorageTable.delete()) # pylint: disable=no-value-for-parameter
conn.execute(AssetKeyTable.delete()) # pylint: disable=no-value-for-parameter
with self.index_connection() as conn:
conn.execute(SqlEventLogStorageTable.delete()) # pylint: disable=no-value-for-parameter
conn.execute(AssetKeyTable.delete()) # pylint: disable=no-value-for-parameter
def delete_events(self, run_id):
with self.run_connection(run_id) as conn:
self.delete_events_for_run(conn, run_id)
def delete_events_for_run(self, conn, run_id):
check.str_param(run_id, "run_id")
delete_statement = (
SqlEventLogStorageTable.delete().where( # pylint: disable=no-value-for-parameter
SqlEventLogStorageTable.c.run_id == run_id
)
)
removed_asset_key_query = (
db.select([SqlEventLogStorageTable.c.asset_key])
.where(SqlEventLogStorageTable.c.run_id == run_id)
.where(SqlEventLogStorageTable.c.asset_key != None)
.group_by(SqlEventLogStorageTable.c.asset_key)
)
removed_asset_keys = [
AssetKey.from_db_string(row[0])
for row in conn.execute(removed_asset_key_query).fetchall()
]
conn.execute(delete_statement)
if len(removed_asset_keys) > 0:
keys_to_check = []
keys_to_check.extend([key.to_string() for key in removed_asset_keys])
keys_to_check.extend([key.to_string(legacy=True) for key in removed_asset_keys])
remaining_asset_keys = [
AssetKey.from_db_string(row[0])
for row in conn.execute(
db.select([SqlEventLogStorageTable.c.asset_key])
.where(SqlEventLogStorageTable.c.asset_key.in_(keys_to_check))
.group_by(SqlEventLogStorageTable.c.asset_key)
)
]
to_remove = set(removed_asset_keys) - set(remaining_asset_keys)
if to_remove:
keys_to_remove = []
keys_to_remove.extend([key.to_string() for key in to_remove])
keys_to_remove.extend([key.to_string(legacy=True) for key in to_remove])
conn.execute(
AssetKeyTable.delete().where( # pylint: disable=no-value-for-parameter
AssetKeyTable.c.asset_key.in_(keys_to_remove)
)
)
@property
def is_persistent(self):
return True
def update_event_log_record(self, record_id, event):
""" Utility method for migration scripts to update SQL representation of event records. """
check.int_param(record_id, "record_id")
check.inst_param(event, "event", EventRecord)
dagster_event_type = None
asset_key_str = None
if event.is_dagster_event:
dagster_event_type = event.dagster_event.event_type_value
if event.dagster_event.asset_key:
check.inst_param(event.dagster_event.asset_key, "asset_key", AssetKey)
asset_key_str = event.dagster_event.asset_key.to_string()
with self.run_connection(run_id=event.run_id) as conn:
conn.execute(
SqlEventLogStorageTable.update() # pylint: disable=no-value-for-parameter
.where(SqlEventLogStorageTable.c.id == record_id)
.values(
event=serialize_dagster_namedtuple(event),
dagster_event_type=dagster_event_type,
timestamp=utc_datetime_from_timestamp(event.timestamp),
step_key=event.step_key,
asset_key=asset_key_str,
)
)
def get_event_log_table_data(self, run_id, record_id):
"""Utility method to test representation of the record in the SQL table. Returns all of
the columns stored in the event log storage (as opposed to the deserialized `EventRecord`).
This allows checking that certain fields are extracted to support performant lookups (e.g.
extracting `step_key` for fast filtering)"""
with self.run_connection(run_id=run_id) as conn:
query = (
db.select([SqlEventLogStorageTable])
.where(SqlEventLogStorageTable.c.id == record_id)
.order_by(SqlEventLogStorageTable.c.id.asc())
)
return conn.execute(query).fetchone()
def has_secondary_index(self, name):
"""This method uses a checkpoint migration table to see if summary data has been constructed
in a secondary index table. Can be used to checkpoint event_log data migrations.
"""
query = (
db.select([1])
.where(SecondaryIndexMigrationTable.c.name == name)
.where(SecondaryIndexMigrationTable.c.migration_completed != None)
.limit(1)
)
with self.index_connection() as conn:
results = conn.execute(query).fetchall()
return len(results) > 0
def enable_secondary_index(self, name):
"""This method marks an event_log data migration as complete, to indicate that a summary
data migration is complete.
"""
query = (
SecondaryIndexMigrationTable.insert().values( # pylint: disable=no-value-for-parameter
name=name,
migration_completed=datetime.now(),
)
)
with self.index_connection() as conn:
try:
conn.execute(query)
except db.exc.IntegrityError:
conn.execute(
SecondaryIndexMigrationTable.update() # pylint: disable=no-value-for-parameter
.where(SecondaryIndexMigrationTable.c.name == name)
.values(migration_completed=datetime.now())
)
def _add_cursor_limit_to_query(
self, query, before_cursor, after_cursor, limit, ascending=False
):
""" Helper function to deal with cursor/limit pagination args """
if before_cursor:
before_query = db.select([SqlEventLogStorageTable.c.id]).where(
SqlEventLogStorageTable.c.id == before_cursor
)
query = query.where(SqlEventLogStorageTable.c.id < before_query)
if after_cursor:
after_query = db.select([SqlEventLogStorageTable.c.id]).where(
SqlEventLogStorageTable.c.id == after_cursor
)
query = query.where(SqlEventLogStorageTable.c.id > after_query)
if limit:
query = query.limit(limit)
if ascending:
query = query.order_by(SqlEventLogStorageTable.c.timestamp.asc())
else:
query = query.order_by(SqlEventLogStorageTable.c.timestamp.desc())
return query
def has_asset_key(self, asset_key: AssetKey) -> bool:
check.inst_param(asset_key, "asset_key", AssetKey)
if self.has_secondary_index(SECONDARY_INDEX_ASSET_KEY):
query = (
db.select([1])
.where(
db.or_(
AssetKeyTable.c.asset_key == asset_key.to_string(),
AssetKeyTable.c.asset_key == asset_key.to_string(legacy=True),
)
)
.limit(1)
)
else:
query = (
db.select([1])
.where(
db.or_(
SqlEventLogStorageTable.c.asset_key == asset_key.to_string(),
SqlEventLogStorageTable.c.asset_key == asset_key.to_string(legacy=True),
)
)
.limit(1)
)
with self.index_connection() as conn:
results = conn.execute(query).fetchall()
return len(results) > 0
def get_asset_keys(self, prefix_path=None):
lazy_migrate = False
if not prefix_path:
if self.has_secondary_index(SECONDARY_INDEX_ASSET_KEY):
query = db.select([AssetKeyTable.c.asset_key])
else:
query = (
db.select([SqlEventLogStorageTable.c.asset_key])
.where(SqlEventLogStorageTable.c.asset_key != None)
.distinct()
)
# This is in place to migrate everyone to using the secondary index table for asset
# keys. Performing this migration should result in a big performance boost for
# any asset-catalog reads.
# After a sufficient amount of time (>= 0.11.0?), we can remove the checks
# for has_secondary_index(SECONDARY_INDEX_ASSET_KEY) and always read from the
# AssetKeyTable, since we are already writing to the table. Tracking the conditional
# check removal here: https://github.com/dagster-io/dagster/issues/3507
lazy_migrate = True
else:
if self.has_secondary_index(SECONDARY_INDEX_ASSET_KEY):
query = db.select([AssetKeyTable.c.asset_key]).where(
db.or_(
AssetKeyTable.c.asset_key.startswith(AssetKey.get_db_prefix(prefix_path)),
AssetKeyTable.c.asset_key.startswith(
AssetKey.get_db_prefix(prefix_path, legacy=True)
),
)
)
else:
query = (
db.select([SqlEventLogStorageTable.c.asset_key])
.where(SqlEventLogStorageTable.c.asset_key != None)
.where(
db.or_(
SqlEventLogStorageTable.c.asset_key.startswith(
AssetKey.get_db_prefix(prefix_path)
),
SqlEventLogStorageTable.c.asset_key.startswith(
AssetKey.get_db_prefix(prefix_path, legacy=True)
),
)
)
.distinct()
)
with self.index_connection() as conn:
results = conn.execute(query).fetchall()
if lazy_migrate:
# This is in place to migrate everyone to using the secondary index table for asset
# keys. Performing this migration should result in a big performance boost for
# any subsequent asset-catalog reads.
self._lazy_migrate_secondary_index_asset_key(
[asset_key for (asset_key,) in results if asset_key]
)
return list(
set([AssetKey.from_db_string(asset_key) for (asset_key,) in results if asset_key])
)
def _lazy_migrate_secondary_index_asset_key(self, asset_keys):
with self.index_connection() as conn:
results = conn.execute(db.select([AssetKeyTable.c.asset_key])).fetchall()
existing = [asset_key for (asset_key,) in results if asset_key]
to_migrate = set(asset_keys) - set(existing)
for asset_key in to_migrate:
try:
conn.execute(
AssetKeyTable.insert().values( # pylint: disable=no-value-for-parameter
asset_key=AssetKey.from_db_string(asset_key).to_string()
)
)
except db.exc.IntegrityError:
# asset key already present
pass
self.enable_secondary_index(SECONDARY_INDEX_ASSET_KEY)
def get_asset_events(
self,
asset_key,
partitions=None,
before_cursor=None,
after_cursor=None,
limit=None,
ascending=False,
include_cursor=False,
cursor=None, # deprecated
):
check.inst_param(asset_key, "asset_key", AssetKey)
check.opt_list_param(partitions, "partitions", of_type=str)
query = db.select([SqlEventLogStorageTable.c.id, SqlEventLogStorageTable.c.event]).where(
db.or_(
SqlEventLogStorageTable.c.asset_key == asset_key.to_string(),
SqlEventLogStorageTable.c.asset_key == asset_key.to_string(legacy=True),
)
)
if partitions:
query = query.where(SqlEventLogStorageTable.c.partition.in_(partitions))
before_cursor, after_cursor = extract_asset_events_cursor(
cursor, before_cursor, after_cursor, ascending
)
query = self._add_cursor_limit_to_query(
query, before_cursor, after_cursor, limit, ascending=ascending
)
with self.index_connection() as conn:
results = conn.execute(query).fetchall()
events = []
for row_id, json_str in results:
try:
event_record = deserialize_json_to_dagster_namedtuple(json_str)
if not isinstance(event_record, EventRecord):
logging.warning(
"Could not resolve asset event record as EventRecord for id `{}`.".format(
row_id
)
)
continue
if include_cursor:
events.append(tuple([row_id, event_record]))
else:
events.append(event_record)
except seven.JSONDecodeError:
logging.warning("Could not parse asset event record id `{}`.".format(row_id))
return events
def get_asset_run_ids(self, asset_key):
check.inst_param(asset_key, "asset_key", AssetKey)
query = (
db.select(
[SqlEventLogStorageTable.c.run_id, db.func.max(SqlEventLogStorageTable.c.timestamp)]
)
.where(
db.or_(
SqlEventLogStorageTable.c.asset_key == asset_key.to_string(),
SqlEventLogStorageTable.c.asset_key == asset_key.to_string(legacy=True),
)
)
.group_by(
SqlEventLogStorageTable.c.run_id,
)
.order_by(db.func.max(SqlEventLogStorageTable.c.timestamp).desc())
)
with self.index_connection() as conn:
results = conn.execute(query).fetchall()
return [run_id for (run_id, _timestamp) in results]
def _remove_asset_key_from_event_record(self, event_record):
if not event_record.dagster_event.event_specific_data.materialization.asset_key:
return event_record
dagster_event = event_record.dagster_event
event_specific_data = dagster_event.event_specific_data
materialization = event_specific_data.materialization
updated_materialization = Materialization(
label=materialization.label,
description=materialization.description,
metadata_entries=materialization.metadata_entries,
asset_key=None,
skip_deprecation_warning=True,
)
updated_event_specific_data = event_specific_data._replace(
materialization=updated_materialization
)
updated_dagster_event = dagster_event._replace(
event_specific_data=updated_event_specific_data
)
return event_record._replace(dagster_event=updated_dagster_event)
def all_asset_tags(self):
query = db.select([AssetKeyTable.c.asset_key, AssetKeyTable.c.last_materialization])
tags_by_asset_key = defaultdict(dict)
with self.index_connection() as conn:
rows = conn.execute(query).fetchall()
for asset_key, materialization_str in rows:
if materialization_str:
materialization = deserialize_json_to_dagster_namedtuple(materialization_str)
tags_by_asset_key[AssetKey.from_db_string(asset_key)] = {
k: v for k, v in (materialization.tags or {}).items()
}
return tags_by_asset_key
def get_asset_tags(self, asset_key):
check.inst_param(asset_key, "asset_key", AssetKey)
query = db.select([AssetKeyTable.c.last_materialization]).where(
AssetKeyTable.c.asset_key == asset_key.to_string()
)
with self.index_connection() as conn:
rows = conn.execute(query).fetchall()
if not rows:
return {}
if not rows[0]:
return {}
materialization = deserialize_json_to_dagster_namedtuple(rows[0][0])
return materialization.tags or {}
def wipe_asset(self, asset_key):
check.inst_param(asset_key, "asset_key", AssetKey)
event_query = db.select(
[SqlEventLogStorageTable.c.id, SqlEventLogStorageTable.c.event]
).where(
db.or_(
SqlEventLogStorageTable.c.asset_key == asset_key.to_string(),
SqlEventLogStorageTable.c.asset_key == asset_key.to_string(legacy=True),
)
)
asset_key_delete = AssetKeyTable.delete().where( # pylint: disable=no-value-for-parameter
db.or_(
AssetKeyTable.c.asset_key == asset_key.to_string(),
AssetKeyTable.c.asset_key == asset_key.to_string(legacy=True),
)
)
with self.index_connection() as conn:
conn.execute(asset_key_delete)
results = conn.execute(event_query).fetchall()
# rather than deleting the events for the asset key, we update the records to remove
# the asset_key in order to preserve the event log history
for row_id, json_str in results:
try:
event_record = deserialize_json_to_dagster_namedtuple(json_str)
if not isinstance(event_record, EventRecord):
continue
updated_record = self._remove_asset_key_from_event_record(event_record)
# update the event_record here
self.update_event_log_record(row_id, updated_record)
except seven.JSONDecodeError:
logging.warning("Could not parse asset event record id `{}`.".format(row_id))