def close_all(self):
"""
Close all connections
"""
n = 0
while not self.pool.empty():
conn = self.pool.get_nowait()
self._connection_close(conn)
n += 1
Meters.aii("k.db_pool.base.cur_size", increment_value=-n)
Meters.ai("k.db_pool.base.max_size").set(max(Meters.aig("k.db_pool.base.max_size"), Meters.aig("k.db_pool.base.cur_size")))
self.size = 0
def _watchdog_run(self):
"""
Watch dog
:return Nothing
"""
if not self._is_started:
return
reschedule = True
try:
# Current meters
Meters.ai(self.meters_prefix + "mcs.cur_bytes").set(
self._current_data_bytes.get())
Meters.ai(self.meters_prefix + "mcs.cur_size_hash").set(
len(self._hash_key))
# Evict
ms = SolBase.mscurrent()
evicted_count = self._evict_all_expired_keys()
# Check (evict can take some time)
if not self._is_started:
return
Meters.dtci(self.meters_prefix + "mcs.cache_dtc_watchdog",
SolBase.msdiff(ms))
# Stat
if evicted_count > 0:
Meters.aii(self.meters_prefix + "mcs.cache_evict_ttl_watchdog",
evicted_count)
# Callback (unittest)
if self._cb_watchdog:
reschedule = self._cb_watchdog(evicted_count)
except Exception as e:
if self._is_started:
logger.error("_watchdog_run : Exception, id=%s, e=%s",
id(self), SolBase.extostr(e))
Meters.aii(self.meters_prefix + "mcs.cache_ex")
else:
logger.debug("_watchdog_run : Exception, id=%s, e=%s",
id(self), SolBase.extostr(e))
reschedule = False
finally:
Meters.aii(self.meters_prefix + "mcs.cache_watchdog_run_count")
# Schedule next write
if reschedule and self._is_started:
self._schedule_next_watchdog()
def connection_acquire(self):
"""
Get a connection
# TODO : In case client cannot release (greenlet kill) : add a spawn_later to protect pull exhaust (+ kill the connection in this case)
# TODO : this requires a timeout by config (lets say 60 sec by default)
:return: object
:rtype object
"""
with self.pool_lock:
Meters.aii("k.db_pool.base.call.connection_acquire")
if self.pool.qsize() > 0:
# ------------------------------
# GET CONNECTION FROM POOL
# ------------------------------
conn = self.pool.get()
# Ping it
if not self._connection_ping(conn):
# Failed => close it
self._connection_close(conn)
# Re-create a new one (we just closed a connection)
conn = self._connection_create()
# Send it back
return conn
elif self.size >= self.max_size:
# ------------------------------
# POOL MAXED => ERROR
# ------------------------------
Meters.aii("k.db_pool.base.pool_maxed")
raise Exception("Pool maxed, size=%s, max_size=%s" % (self.size, self.max_size))
else:
# ------------------------------
# POOL NOT MAXED, NO CONNECTION IN POOL => NEW CONNECTION
# ------------------------------
try:
conn = self._connection_create()
self.size += 1
Meters.aii("k.db_pool.base.cur_size", increment_value=1)
Meters.ai("k.db_pool.base.max_size").set(max(Meters.aig("k.db_pool.base.max_size"), Meters.aig("k.db_pool.base.cur_size")))
except Exception:
raise
return conn
def test_meters(self):
"""
Test
"""
ai1a = Meters.ai("ai1")
self.assertIsInstance(ai1a, AtomicIntSafe)
ai1b = Meters.ai("ai1")
self.assertEqual(id(ai1a), id(ai1b))
ai1a = Meters.aii("ai1")
self.assertEqual(ai1a.get(), 1)
ai1a = Meters.aii("ai1", 2)
self.assertEqual(ai1a.get(), 3)
self.assertEqual(ai1a.get(), Meters.aig("ai1"))
af1a = Meters.af("af1")
self.assertIsInstance(af1a, AtomicFloatSafe)
af1b = Meters.af("af1")
self.assertEqual(id(af1a), id(af1b))
af1a = Meters.afi("af1")
self.assertEqual(af1a.get(), 1.0)
af1a = Meters.afi("af1", 2.0)
self.assertEqual(af1a.get(), 3.0)
self.assertEqual(af1a.get(), Meters.afg("af1"))
dtc1a = Meters.dtc("dtc1")
self.assertIsInstance(dtc1a, DelayToCountSafe)
dtc1b = Meters.dtc("dtc1")
self.assertEqual(id(dtc1a), id(dtc1b))
Meters.dtci("dtc1", 0)
Meters.dtci("dtc1", 50)
Meters.dtci("dtc1", 100)
self.assertEquals(Meters._hash_meter["dtc"]["dtc1#"]._sorted_dict[0].get(), 1)
self.assertEquals(Meters._hash_meter["dtc"]["dtc1#"]._sorted_dict[50].get(), 1)
self.assertEquals(Meters._hash_meter["dtc"]["dtc1#"]._sorted_dict[100].get(), 1)
self.assertEquals(Meters._hash_meter["dtc"]["dtc1#"]._sorted_dict[500].get(), 0)
Meters.dtc("dtc1").to_dict()
# Write
Meters.write_to_logger()
def test_meters_to_udp(self):
"""
Test
"""
ai1a = Meters.ai("ai1")
self.assertIsInstance(ai1a, AtomicIntSafe)
ai1b = Meters.ai("ai1")
self.assertEqual(id(ai1a), id(ai1b))
ai1a = Meters.aii("ai1")
self.assertEqual(ai1a.get(), 1)
ai1a = Meters.aii("ai1", 2)
self.assertEqual(ai1a.get(), 3)
self.assertEqual(ai1a.get(), Meters.aig("ai1"))
af1a = Meters.af("af1")
self.assertIsInstance(af1a, AtomicFloatSafe)
af1b = Meters.af("af1")
self.assertEqual(id(af1a), id(af1b))
af1a = Meters.afi("af1")
self.assertEqual(af1a.get(), 1.0)
af1a = Meters.afi("af1", 2.0)
self.assertEqual(af1a.get(), 3.0)
self.assertEqual(af1a.get(), Meters.afg("af1"))
dtc1a = Meters.dtc("dtc1")
self.assertIsInstance(dtc1a, DelayToCountSafe)
dtc1b = Meters.dtc("dtc1")
self.assertEqual(id(dtc1a), id(dtc1b))
Meters.dtci("dtc1", 0)
Meters.dtci("dtc1", 50)
Meters.dtci("dtc1", 100)
self.assertEquals(Meters._hash_meter["dtc"]["dtc1#"]._sorted_dict[0].get(), 1)
self.assertEquals(Meters._hash_meter["dtc"]["dtc1#"]._sorted_dict[50].get(), 1)
self.assertEquals(Meters._hash_meter["dtc"]["dtc1#"]._sorted_dict[100].get(), 1)
self.assertEquals(Meters._hash_meter["dtc"]["dtc1#"]._sorted_dict[500].get(), 0)
# Write
Meters.write_to_logger()
# Serialize
ar_json = Meters.meters_to_udp_format(send_pid=True, send_dtc=True)
logger.info("Got ar_json=%s", ar_json)
for cur_ar in ar_json:
logger.info("Got cur_ar=%s", cur_ar)
# Serialize, no dtc
ar_json = Meters.meters_to_udp_format(send_pid=True, send_dtc=False)
logger.info("Got ar_json=%s", ar_json)
for cur_ar in ar_json:
logger.info("Got cur_ar=%s", cur_ar)
# Send to daemon (assuming its up locally)
Meters.send_udp_to_knockdaemon()
Meters.send_udp_to_knockdaemon(send_dtc=True)
Meters.send_udp_to_knockdaemon(send_dtc=False)
# ------------------------
# UDP Scheduler test
# ------------------------
# Check
self.assertIsNone(Meters.UDP_SCHEDULER_GREENLET)
self.assertFalse(Meters.UDP_SCHEDULER_STARTED)
# Start
Meters.udp_scheduler_start(send_interval_ms=500)
# Check
self.assertIsNotNone(Meters.UDP_SCHEDULER_GREENLET)
self.assertTrue(Meters.UDP_SCHEDULER_STARTED)
# Start again
Meters.udp_scheduler_start(send_interval_ms=500)
# Check again
self.assertIsNotNone(Meters.UDP_SCHEDULER_GREENLET)
self.assertTrue(Meters.UDP_SCHEDULER_STARTED)
# Interval is 500 => we sleep 3.250 sec, we assume we must have at least 500, 1000, 1500, 2000, 2500, 3000 run => 6 runs
SolBase.sleep(3250)
# Check
self.assertGreaterEqual(Meters.aig("k.meters.udp.run.ok"), 6)
self.assertEqual(Meters.aig("k.meters.udp.run.ex"), 0)
self.assertIsNotNone(Meters.UDP_SCHEDULER_GREENLET)
self.assertTrue(Meters.UDP_SCHEDULER_STARTED)
# We stop
Meters.udp_scheduler_stop()
self.assertIsNone(Meters.UDP_SCHEDULER_GREENLET)
self.assertFalse(Meters.UDP_SCHEDULER_STARTED)
# Sleep again and check no more running
cur_run = Meters.aig("k.meters.udp.run.ok")
SolBase.sleep(2000)
self.assertEqual(cur_run, Meters.aig("k.meters.udp.run.ok"))
