def get_requests_data(connection_string, FROM, TO):
db = cpyutils.db.DB.create_from_string(connection_string)
# We'll get the max and min timestamp, and so check whether we have access to the db or not
max_timestamp = 0
result, row_count, rows = db.sql_query("select max(timestamp_created),min(timestamp_created) from requests")
if result:
max_timestamp = rows[0][0]
min_timestamp = rows[0][1]
else:
raise Exception("failed to read from the database")
# Now correct the values of TO and FROM
if TO == 0:
TO = max_timestamp
elif TO < 0:
TO = max_timestamp + TO
if FROM < 0:
FROM = TO + FROM
if FROM < 0:
FROM = 0
if FROM < min_timestamp:
FROM = min_timestamp
# Just in case that there are no requests
if FROM is None:
FROM = 0
if TO is None:
TO = 0
# Finally get the data from the database
result, row_count, rows = db.sql_query("select * from requests where timestamp_created >= %d and timestamp_created <= %d order by timestamp_created" % (FROM, TO) )
requests = []
if result:
# Read the data from the database and create the data structure (Stats)
for (reqid, timestamp_created, timestamp_state, state, slots, memory, expressions, taskcount, maxtaskspernode, jobid, nodes, x) in rows:
requests.append(\
{
"id": reqid,\
"t_created": timestamp_created,\
"state": state,\
"t_state": timestamp_state,\
"slots": slots,\
"memory": memory,\
"requirements": expressions,\
"taskcount": taskcount,\
"maxtaskspernode": maxtaskspernode,\
"jobid": jobid,\
"nodes": nodes\
}\
)
return requests, min_timestamp, max_timestamp
else:
return None, None, None
def get_data_from_db(self):
if self._dbstring is None:
return False, ""
db = cpyutils.db.DB.create_from_string(self._dbstring)
if db is not None:
success, rowcount, rows = db.sql_query("select * from endpoint", True)
if success:
bad_eps = []
for row in rows:
_id, public_ip, public_port, private_ip, private_port, timestamp = row
ep = Endpoint(public_ip, public_port, private_ip, private_port)
ep.id = _id
ep.timestamp = timestamp
_LOGGER.debug("reading endpoint %s from the database" % ep)
result, msg = self.apply_endpoint(ep, False)
if not result:
_LOGGER.warning("ignoring (%s)" % msg)
bad_eps.append(ep)
# Cleaning bad endpoints
for ep in bad_eps:
self._unsave_endpoint(ep)
return True, "Reading %d endpoints" % rowcount
else:
return False, "Could not read endpoints from database"
else:
_LOGGER.warning("Not using a database due to errors in the connection")
self._dbstring = None
return False, _LOGGER.warning("could not create a connection to the databse")
def _initialize_db(self):
if (self._dbstring == "") or (self._dbstring is None):
return False, _LOGGER.info("not using a database (no db connection string provided)")
db = cpyutils.db.DB.create_from_string(self._dbstring)
if db is not None:
succes, _, _ = db.sql_query(
"create table if not exists endpoint (id, public_ip, public_port, private_ip, private_port, timestamp)",
True,
)
if not succes:
return False, _LOGGER.error("could not initialize the database")
return True, ""
else:
_LOGGER.warning("Not using a database due to errors in the connection")
self._dbstring = None
return False, _LOGGER.warning("could not create a connection to the databse")
def _unsave_endpoint(self, ep):
if self._dbstring is None:
return False, ""
db = cpyutils.db.DB.create_from_string(self._dbstring)
if db is not None:
success, rowcount, rows = db.sql_query(
_LOGGER.debug(
'delete from endpoint where public_ip = "%s" and public_port = %d and private_ip = "%s" and private_port = %d'
% (ep.public_ip, ep.public_port, ep.private_ip, ep.private_port)
),
True,
)
if success:
return True, "Endpoint removed from the database (%s)" % ep
else:
return False, "Could not delete endpoint from the database"
else:
return False, _LOGGER.warning("could not create a connection to the databse")
def _save_endpoint(self, ep):
if self._dbstring is None:
return False, ""
db = cpyutils.db.DB.create_from_string(self._dbstring)
if db is not None:
success, rowcount, rows = db.sql_query(
_LOGGER.debug(
'insert into endpoint values ("%s", "%s", %d, "%s", %d, %ld)'
% (ep.id, ep.public_ip, ep.public_port, ep.private_ip, ep.private_port, ep.timestamp)
),
True,
)
if success:
return True, "Endpoint saved (%s)" % ep
else:
return False, "Could not save endpoint to the database"
else:
return False, _LOGGER.warning("could not create a connection to the databse")
def get_reports_data(connection_string, FROM, TO):
db = cpyutils.db.DB.create_from_string(connection_string)
# We'll get the max and min timestamp, and so check whether we have access to the db or not
max_timestamp = 0
result, row_count, rows = db.sql_query("select max(timestamp),min(timestamp) from host_monitoring")
if result:
max_timestamp = rows[0][0]
min_timestamp = rows[0][1]
else:
raise Exception("failed to read from the database")
# Now correct the values of TO and FROM
if TO == 0:
TO = max_timestamp
elif TO < 0:
TO = max_timestamp + TO
if FROM < 0:
FROM = TO + FROM
if FROM < 0:
FROM = 0
# Just in case that there is no monitoring information
if FROM is None:
FROM = 0
if TO is None:
TO = 0
# Finally get the data from the database
result, row_count, rows = db.sql_query("select * from host_monitoring where timestamp_state >= %d and timestamp_state <= %d order by timestamp_state" % (FROM, TO) )
timeline={}
hostnames = []
if result:
# Read the data from the database and create the data structure (Stats)
for (name, timestamp_state, slots_count, slots_free, memory_total, memory_free, state, timestamp, x) in rows:
timestamp_state = int(timestamp)
s = Stats(slots_count, slots_free, memory_total, memory_free, state, timestamp)
if timestamp_state not in timeline.keys():
timeline[timestamp_state] = {}
if name not in timeline[timestamp_state].keys():
timeline[timestamp_state][name] = s
if name not in hostnames:
hostnames.append(name)
# Get the timestamp sorted
timesteps = timeline.keys()
timesteps.sort()
# Now we are filling the data blanks for each host (to get data for every host at each timestamp)
fill_the_blanks = True
if fill_the_blanks:
current_values = {}
for nname in hostnames:
current_values[nname] = Stats(0, 0, 0, 0, 2, 0)
for t in timesteps:
for nname in hostnames:
if nname not in timeline[t].keys():
timeline[t][nname] = current_values[nname].clone(t)
current_values[nname] = timeline[t][nname]
# Now we are re-organizing the data, indexing by host
hostdata = {}
for hostname in hostnames:
hostdata[hostname] = []
for t in timesteps:
for hostname in hostnames:
if hostname in timeline[t]:
t_s = "%d" % t
hostdata[hostname].append(timeline[t][hostname].toJSONobj())
return hostdata, min_timestamp, max_timestamp
else:
return None, None, None
