def execute(self, context):
hive = HiveServer2Hook(hiveserver2_conn_id=self.hiveserver2_conn_id)
logging.info("Extracting data from Hive")
logging.info(self.sql)
if self.bulk_load:
tmpfile = NamedTemporaryFile()
hive.to_csv(self.sql,
tmpfile.name,
delimiter='\t',
lineterminator='\n',
output_header=False)
else:
results = hive.get_records(self.sql)
mysql = MySqlHook(mysql_conn_id=self.mysql_conn_id)
if self.mysql_preoperator:
logging.info("Running MySQL preoperator")
mysql.run(self.mysql_preoperator)
logging.info("Inserting rows into MySQL")
if self.bulk_load:
mysql.bulk_load(table=self.mysql_table, tmp_file=tmpfile.name)
tmpfile.close()
else:
mysql.insert_rows(table=self.mysql_table, rows=results)
if self.mysql_postoperator:
logging.info("Running MySQL postoperator")
mysql.run(self.mysql_postoperator)
logging.info("Done.")
def execute(self, context):
hive = HiveServer2Hook(hiveserver2_conn_id=self.hiveserver2_conn_id)
logging.info("Extracting data from Hive")
logging.info(self.sql)
if self.bulk_load:
tmpfile = NamedTemporaryFile()
hive.to_csv(self.sql, tmpfile.name, delimiter='\t',
lineterminator='\n', output_header=False)
else:
results = hive.get_records(self.sql)
mysql = MySqlHook(mysql_conn_id=self.mysql_conn_id)
if self.mysql_preoperator:
logging.info("Running MySQL preoperator")
mysql.run(self.mysql_preoperator)
logging.info("Inserting rows into MySQL")
if self.bulk_load:
mysql.bulk_load(table=self.mysql_table, tmp_file=tmpfile.name)
tmpfile.close()
else:
mysql.insert_rows(table=self.mysql_table, rows=results)
if self.mysql_postoperator:
logging.info("Running MySQL postoperator")
mysql.run(self.mysql_postoperator)
logging.info("Done.")
def execute(self, context):
logging.info('Executing: ' + str(self.sql))
hook = MySqlHook(mysql_conn_id=self.mysql_conn_id)
hook.run(
self.sql,
autocommit=self.autocommit,
parameters=self.parameters)
def insert_or_delete_task_state(*args, **kargs):
ti = kargs["ti"] ##current task instance
insert_sql = kargs["insert_sql"] # insert upstream state sql
delete_sql = kargs["delete_sql"] # delete upstream state sql
upstream_task_id = kargs["up_id"] # upstream task id
xcom_pull_key = kargs["xcom_key"] # key for xcom_pull
mysql_conn_id = kargs["mysql_conn_id"] # conn id for database which stores state table
actual_sql = ""
##method 1 of get the upstream task's state
# up_state = ti.xcom_pull(key=xcom_pull_key, task_ids = upstream_task_id)
upstream_task_list = kargs["task"].upstream_list
logging.info("%s upstream task list is %s" % (kargs["task"], upstream_task_list))
upstream_task_state = (
upstream_task_list[0]
.get_task_instances(
session=settings.Session(), start_date=kargs["execution_date"], end_date=kargs["execution_date"]
)[0]
.state
)
logging.info("%s upstream task(%s) state is %s" % (kargs["task"], upstream_task_list[0], upstream_task_state))
if upstream_task_state == "success":
actual_sql = insert_sql
elif upstream_task_state == "failed":
actual_sql = delete_sql
else:
actual_sql = "show databases;" ## if not success or failed, do something effectiveless
logging.info("upstream state is %s, actual update status sql is %s" % (str(upstream_task_state), str(actual_sql)))
##start to execute sql
logging.info("Executing: %s" % (str(actual_sql)))
hook = MySqlHook(mysql_conn_id=mysql_conn_id)
hook.run(actual_sql)
def execute(self, context):
hive = HiveServer2Hook(hiveserver2_conn_id=self.hive_cli_conn_id)
logging.info("Extracting data from Hive")
results = hive.get_records(self.sql)
mysql = MySqlHook(mysql_conn_id=self.mysql_conn_id)
if self.mysql_preoperator:
logging.info("Running MySQL preoperator")
mysql.run(self.mysql_preoperator)
logging.info("Inserting rows into MySQL")
mysql.insert_rows(table=self.mysql_table, rows=results)
def execute(self, context):
hive = HiveServer2Hook(hiveserver2_conn_id=self.hiveserver2_conn_id)
logging.info("Extracting data from Hive")
results = hive.get_records(self.sql)
mysql = MySqlHook(mysql_conn_id=self.mysql_conn_id)
if self.mysql_preoperator:
logging.info("Running MySQL preoperator")
mysql.run(self.mysql_preoperator)
logging.info("Inserting rows into MySQL")
mysql.insert_rows(table=self.mysql_table, rows=results)
def execute(self, context):
presto = PrestoHook(presto_conn_id=self.presto_conn_id)
logging.info("Extracting data from Presto")
logging.info(self.sql)
results = hive.get_records(self.sql)
mysql = MySqlHook(mysql_conn_id=self.mysql_conn_id)
if self.mysql_preoperator:
logging.info("Running MySQL preoperator")
logging.info(self.mysql_preoperator)
mysql.run(self.mysql_preoperator)
logging.info("Inserting rows into MySQL")
mysql.insert_rows(table=self.mysql_table, rows=results)
def execute(self, context):
presto = PrestoHook(presto_conn_id=self.presto_conn_id)
logging.info("Extracting data from Presto")
logging.info(self.sql)
results = presto.get_records(self.sql)
mysql = MySqlHook(mysql_conn_id=self.mysql_conn_id)
if self.mysql_preoperator:
logging.info("Running MySQL preoperator")
logging.info(self.mysql_preoperator)
mysql.run(self.mysql_preoperator)
logging.info("Inserting rows into MySQL")
mysql.insert_rows(table=self.mysql_table, rows=results)
def post_execute(self, context):
try:
log_filepath = context["task_instance"].log_filepath.strip('.log')
# parse the log file into a dict
parsed = HiveLog.parselog(log_filepath)
# captures the name of a parent dag in a subdag routine
dag_ids = context['dag'].dag_id.split('.')
if len(dag_ids) > 1:
parsed['parent_dag_id'] = dag_ids[0]
parsed['dag_id'] = dag_ids[1:].join('.')
else:
parsed['parent_dag_id'] = context['dag'].dag_id
parsed['dag_id'] = parsed['parent_dag_id']
# Capture extra information from context
parsed['task_id'] = context['task'].task_id
parsed['input_date'] = context['ds']
parsed['owner'] = context['task'].owner
# Create the table if it doesnt exist
sql_hook = MySqlHook("airflow_db")
sql_hook.run(table_creation_string())
# Create sql insertion strings and insert
strings = table_insertion_strings(parsed)
logging.info('Inserting honypot log metadata into database')
for add_data_to_table_string in strings:
sql_hook.run(add_data_to_table_string)
logging.info('Completely log data insertion')
sql_hook.run('COMMIT;')
except Exception as e:
logging.error("Honeypot post executor failed")
logging.exception(e)
class MySqlOperator(BaseOperator):
"""
Executes sql code in a specific mysql database.
"""
__mapper_args__ = {'polymorphic_identity': 'MySqlOperator'}
template_fields = ('sql', )
template_ext = ('.sql', )
@apply_defaults
def __init__(self, sql, mysql_conn_id, *args, **kwargs):
"""
Parameters:
mysql_conn_id: reference to a specific mysql database
sql: the sql code you to be executed
"""
super(MySqlOperator, self).__init__(*args, **kwargs)
self.hook = MySqlHook(mysql_conn_id=mysql_conn_id)
self.sql = sql
def execute(self, execution_date):
logging.info('Executing: ' + self.sql)
self.hook.run(self.sql)
def execute(self, context=None):
metastore = HiveMetastoreHook(metastore_conn_id=self.metastore_conn_id)
table = metastore.get_table(table_name=self.table)
field_types = {col.name: col.type for col in table.sd.cols}
exprs = {
('', 'count'): 'COUNT(*)'
}
for col, col_type in field_types.items():
d = {}
if self.assignment_func:
d = self.assignment_func(col, col_type)
if d is None:
d = self.get_default_exprs(col, col_type)
else:
d = self.get_default_exprs(col, col_type)
exprs.update(d)
exprs.update(self.extra_exprs)
exprs = OrderedDict(exprs)
exprs_str = ",\n ".join([
v + " AS " + k[0] + '__' + k[1]
for k, v in exprs.items()])
where_clause = [
"{0} = '{1}'".format(k, v) for k, v in self.partition.items()]
where_clause = " AND\n ".join(where_clause)
sql = """
SELECT
{exprs_str}
FROM {self.table}
WHERE
{where_clause};
""".format(**locals())
hook = PrestoHook(presto_conn_id=self.presto_conn_id)
logging.info('Executing SQL check: ' + sql)
row = hook.get_first(hql=sql)
logging.info("Record: " + str(row))
if not row:
raise Exception("The query returned None")
part_json = json.dumps(self.partition, sort_keys=True)
logging.info("Deleting rows from previous runs if they exist")
mysql = MySqlHook(self.mysql_conn_id)
sql = """
SELECT 1 FROM hive_stats
WHERE
table_name='{self.table}' AND
partition_repr='{part_json}' AND
dttm='{self.dttm}'
LIMIT 1;
""".format(**locals())
if mysql.get_records(sql):
sql = """
DELETE FROM hive_stats
WHERE
table_name='{self.table}' AND
partition_repr='{part_json}' AND
dttm='{self.dttm}';
""".format(**locals())
mysql.run(sql)
logging.info("Pivoting and loading cells into the Airflow db")
rows = [
(self.ds, self.dttm, self.table, part_json) +
(r[0][0], r[0][1], r[1])
for r in zip(exprs, row)]
mysql.insert_rows(
table='hive_stats',
rows=rows,
target_fields=[
'ds',
'dttm',
'table_name',
'partition_repr',
'col',
'metric',
'value',
]
)
def execute(self, context=None):
metastore = HiveMetastoreHook(metastore_conn_id=self.metastore_conn_id)
table = metastore.get_table(table_name=self.table)
field_types = {col.name: col.type for col in table.sd.cols}
exprs = {('', 'count'): 'COUNT(*)'}
for col, col_type in field_types.items():
d = {}
if self.assignment_func:
d = self.assignment_func(col, col_type)
if d is None:
d = self.get_default_exprs(col, col_type)
else:
d = self.get_default_exprs(col, col_type)
exprs.update(d)
exprs.update(self.extra_exprs)
exprs = OrderedDict(exprs)
exprs_str = ",\n ".join(
[v + " AS " + k[0] + '__' + k[1] for k, v in exprs.items()])
where_clause = [
"{0} = '{1}'".format(k, v) for k, v in self.partition.items()
]
where_clause = " AND\n ".join(where_clause)
sql = """
SELECT
{exprs_str}
FROM {self.table}
WHERE
{where_clause};
""".format(**locals())
hook = PrestoHook(presto_conn_id=self.presto_conn_id)
logging.info('Executing SQL check: ' + sql)
row = hook.get_first(hql=sql)
logging.info("Record: " + str(row))
if not row:
raise AirflowException("The query returned None")
part_json = json.dumps(self.partition, sort_keys=True)
logging.info("Deleting rows from previous runs if they exist")
mysql = MySqlHook(self.mysql_conn_id)
sql = """
SELECT 1 FROM hive_stats
WHERE
table_name='{self.table}' AND
partition_repr='{part_json}' AND
dttm='{self.dttm}'
LIMIT 1;
""".format(**locals())
if mysql.get_records(sql):
sql = """
DELETE FROM hive_stats
WHERE
table_name='{self.table}' AND
partition_repr='{part_json}' AND
dttm='{self.dttm}';
""".format(**locals())
mysql.run(sql)
logging.info("Pivoting and loading cells into the Airflow db")
rows = [(self.ds, self.dttm, self.table, part_json) +
(r[0][0], r[0][1], r[1]) for r in zip(exprs, row)]
mysql.insert_rows(table='hive_stats',
rows=rows,
target_fields=[
'ds',
'dttm',
'table_name',
'partition_repr',
'col',
'metric',
'value',
])
def execute(self, context):
logging.info("Executing: " + self.sql)
hook = MySqlHook(mysql_conn_id=self.mysql_conn_id)
hook.run(self.sql)
def execute(self, context):
logging.info('Executing: ' + str(self.sql))
hook = MySqlHook(mysql_conn_id=self.mysql_conn_id)
hook.run(self.sql,
autocommit=self.autocommit,
parameters=self.parameters)
def execute(self, context):
logging.info('Executing: ' + self.sql)
hook = MySqlHook(mysql_conn_id=self.mysql_conn_id)
hook.run(self.sql)
