mirror of
https://github.com/librenms/librenms.git
synced 2024-10-07 16:52:45 +00:00
Migrate Python scripts to Python 3 (#10759)
* Migrate to python3 * Migrate to python3 * Migrate to python3 * Migrate to python3 * Code refactoring and python 2 compat * Code refactoring and python 2 compat * Code refactoring and python 2 compat * Code refactoring and python 2 compat * Added shared code for wrappers * Fix python version check * Allow pure python MySQL library * move library.py remove python2 support bits remove duplicate code * fix log location * whitespace? * fix pre-existing bug * fix bug when no devices/services exist * fix pylint issues * update imports to match Co-authored-by: Tony Murray <murraytony@gmail.com>
This commit is contained in:
Orsiris de Jong
GitHub
@@ -1,11 +1,12 @@
|
||||
#! /usr/bin/env python2
|
||||
#! /usr/bin/env python3
|
||||
"""
|
||||
poller-wrapper A small tool which wraps around the poller and tries to
|
||||
guide the polling process with a more modern approach with a
|
||||
Queue and workers
|
||||
|
||||
Author: Job Snijders <job.snijders@atrato.com>
|
||||
Date: Jan 2013
|
||||
Authors: Job Snijders <job.snijders@atrato.com>
|
||||
Orsiris de Jong <contact@netpower.fr>
|
||||
Date: Oct 2019
|
||||
|
||||
Usage: This program accepts one command line argument: the number of threads
|
||||
that should run simultaneously. If no argument is given it will assume
|
||||
@@ -13,103 +14,48 @@
|
||||
|
||||
Ubuntu Linux: apt-get install python-mysqldb
|
||||
FreeBSD: cd /usr/ports/*/py-MySQLdb && make install clean
|
||||
RHEL 7: yum install MySQL-python
|
||||
RHEL 8: dnf install mariadb-connector-c-devel gcc && python -m pip install mysqlclient
|
||||
|
||||
Tested on: Python 2.7.3 / PHP 5.3.10-1ubuntu3.4 / Ubuntu 12.04 LTS
|
||||
Tested on: Python 3.6.8 / PHP 7.2.11 / CentOS 8.0
|
||||
|
||||
License: To the extent possible under law, Job Snijders has waived all
|
||||
copyright and related or neighboring rights to this script.
|
||||
This script has been put into the Public Domain. This work is
|
||||
published from: The Netherlands.
|
||||
"""
|
||||
|
||||
import LibreNMS.library as LNMS
|
||||
|
||||
try:
|
||||
|
||||
import json
|
||||
import os
|
||||
import Queue
|
||||
import queue
|
||||
import subprocess
|
||||
import sys
|
||||
import threading
|
||||
import time
|
||||
from optparse import OptionParser
|
||||
|
||||
except:
|
||||
print "ERROR: missing one or more of the following python modules:"
|
||||
print "threading, Queue, sys, subprocess, time, os, json"
|
||||
except ImportError as exc:
|
||||
print('ERROR: missing one or more of the following python modules:')
|
||||
print('threading, queue, sys, subprocess, time, os, json')
|
||||
print('ERROR: %s' % exc)
|
||||
sys.exit(2)
|
||||
|
||||
try:
|
||||
import MySQLdb
|
||||
except:
|
||||
print "ERROR: missing the mysql python module:"
|
||||
print "On ubuntu: apt-get install python-mysqldb"
|
||||
print "On FreeBSD: cd /usr/ports/*/py-MySQLdb && make install clean"
|
||||
sys.exit(2)
|
||||
|
||||
APP_NAME = "poller_wrapper"
|
||||
LOG_FILE = "logs/" + APP_NAME + ".log"
|
||||
_DEBUG = False
|
||||
distpoll = False
|
||||
real_duration = 0
|
||||
polled_devices = 0
|
||||
|
||||
"""
|
||||
Fetch configuration details from the config_to_json.php script
|
||||
Threading helper functions
|
||||
"""
|
||||
|
||||
ob_install_dir = os.path.dirname(os.path.realpath(__file__))
|
||||
config_file = ob_install_dir + '/config.php'
|
||||
|
||||
|
||||
def get_config_data():
|
||||
config_cmd = ['/usr/bin/env', 'php', '%s/config_to_json.php' % ob_install_dir]
|
||||
try:
|
||||
proc = subprocess.Popen(config_cmd, stdout=subprocess.PIPE, stdin=subprocess.PIPE)
|
||||
except:
|
||||
print "ERROR: Could not execute: %s" % config_cmd
|
||||
sys.exit(2)
|
||||
return proc.communicate()[0]
|
||||
|
||||
try:
|
||||
with open(config_file) as f:
|
||||
pass
|
||||
except IOError as e:
|
||||
print "ERROR: Oh dear... %s does not seem readable" % config_file
|
||||
sys.exit(2)
|
||||
|
||||
try:
|
||||
config = json.loads(get_config_data())
|
||||
except:
|
||||
print "ERROR: Could not load or parse configuration, are PATHs correct?"
|
||||
sys.exit(2)
|
||||
|
||||
poller_path = config['install_dir'] + '/poller.php'
|
||||
log_dir = config['log_dir']
|
||||
db_username = config['db_user']
|
||||
db_password = config['db_pass']
|
||||
db_port = int(config['db_port'])
|
||||
|
||||
if config['db_socket']:
|
||||
db_server = config['db_host']
|
||||
db_socket = config['db_socket']
|
||||
else:
|
||||
db_server = config['db_host']
|
||||
db_socket = None
|
||||
|
||||
db_dbname = config['db_name']
|
||||
|
||||
|
||||
def db_open():
|
||||
try:
|
||||
if db_socket:
|
||||
db = MySQLdb.connect(host=db_server, unix_socket=db_socket, user=db_username, passwd=db_password, db=db_dbname)
|
||||
else:
|
||||
db = MySQLdb.connect(host=db_server, port=db_port, user=db_username, passwd=db_password, db=db_dbname)
|
||||
return db
|
||||
except:
|
||||
print "ERROR: Could not connect to MySQL database!"
|
||||
sys.exit(2)
|
||||
|
||||
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC1
|
||||
if 'distributed_poller_group' in config:
|
||||
poller_group = str(config['distributed_poller_group'])
|
||||
else:
|
||||
poller_group = False
|
||||
|
||||
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC0
|
||||
def memc_alive():
|
||||
try:
|
||||
global memc
|
||||
@@ -136,110 +82,7 @@ def memc_touch(key, time):
|
||||
def get_time_tag(step):
|
||||
ts = int(time.time())
|
||||
return ts - ts % step
|
||||
|
||||
|
||||
if 'rrd' in config and 'step' in config['rrd']:
|
||||
step = config['rrd']['step']
|
||||
else:
|
||||
step = 300
|
||||
|
||||
if ('distributed_poller' in config and
|
||||
'distributed_poller_memcached_host' in config and
|
||||
'distributed_poller_memcached_port' in config and
|
||||
config['distributed_poller']):
|
||||
|
||||
time_tag = str(get_time_tag(step))
|
||||
master_tag = "poller.master." + time_tag
|
||||
nodes_tag = "poller.nodes." + time_tag
|
||||
|
||||
try:
|
||||
import memcache
|
||||
import uuid
|
||||
memc = memcache.Client([config['distributed_poller_memcached_host'] + ':' +
|
||||
str(config['distributed_poller_memcached_port'])])
|
||||
if memc_alive():
|
||||
distpoll = True
|
||||
memc.add(nodes_tag, 0, step)
|
||||
if memc.add(master_tag, config['distributed_poller_name'], 10):
|
||||
print "Registered as Master"
|
||||
IsNode = False
|
||||
else:
|
||||
if str(memc.get(master_tag)) == config['distributed_poller_name']:
|
||||
print "This system is already joined as the poller master."
|
||||
sys.exit(2)
|
||||
else:
|
||||
print "Registered as Node joining Master %s" % memc.get(master_tag)
|
||||
memc.incr(nodes_tag)
|
||||
IsNode = True
|
||||
else:
|
||||
print "Could not connect to memcached, disabling distributed poller."
|
||||
distpoll = False
|
||||
IsNode = False
|
||||
except SystemExit:
|
||||
raise
|
||||
except ImportError:
|
||||
print "ERROR: missing memcache python module:"
|
||||
print "On deb systems: apt-get install python-memcache"
|
||||
print "On other systems: easy_install python-memcached"
|
||||
print "Disabling distributed poller."
|
||||
distpoll = False
|
||||
else:
|
||||
distpoll = False
|
||||
# EOC1
|
||||
|
||||
s_time = time.time()
|
||||
real_duration = 0
|
||||
per_device_duration = {}
|
||||
polled_devices = 0
|
||||
|
||||
"""
|
||||
Take the amount of threads we want to run in parallel from the commandline
|
||||
if None are given or the argument was garbage, fall back to default of 16
|
||||
"""
|
||||
usage = "usage: %prog [options] <workers> (Default: 16 (Do not set too high)"
|
||||
description = "Spawn multiple poller.php processes in parallel."
|
||||
parser = OptionParser(usage=usage, description=description)
|
||||
parser.add_option('-d', '--debug', action='store_true', default=False,
|
||||
help="Enable debug output. WARNING: Leaving this enabled will consume a lot of disk space.")
|
||||
(options, args) = parser.parse_args()
|
||||
|
||||
debug = options.debug
|
||||
try:
|
||||
amount_of_workers = int(args[0])
|
||||
except (IndexError, ValueError):
|
||||
amount_of_workers = 16
|
||||
|
||||
devices_list = []
|
||||
|
||||
"""
|
||||
This query specificly orders the results depending on the last_polled_timetaken variable
|
||||
Because this way, we put the devices likely to be slow, in the top of the queue
|
||||
thus greatening our chances of completing _all_ the work in exactly the time it takes to
|
||||
poll the slowest device! cool stuff he
|
||||
"""
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC2
|
||||
if poller_group is not False:
|
||||
query = "select device_id from devices where poller_group IN(" + poller_group + ") and disabled = 0 order by last_polled_timetaken desc"
|
||||
else:
|
||||
query = "select device_id from devices where disabled = 0 order by last_polled_timetaken desc"
|
||||
# EOC2
|
||||
|
||||
|
||||
db = db_open()
|
||||
cursor = db.cursor()
|
||||
cursor.execute(query)
|
||||
devices = cursor.fetchall()
|
||||
for row in devices:
|
||||
devices_list.append(int(row[0]))
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC3
|
||||
if distpoll and not IsNode:
|
||||
query = "select max(device_id),min(device_id) from devices"
|
||||
cursor.execute(query)
|
||||
devices = cursor.fetchall()
|
||||
maxlocks = devices[0][0]
|
||||
minlocks = devices[0][1]
|
||||
# EOC3
|
||||
db.close()
|
||||
#EOC0
|
||||
|
||||
"""
|
||||
A seperate queue and a single worker for printing information to the screen prevents
|
||||
@@ -248,12 +91,10 @@ db.close()
|
||||
Some people, when confronted with a problem, think,
|
||||
"I know, I'll use threads," and then two they hav erpoblesms.
|
||||
"""
|
||||
|
||||
|
||||
def printworker():
|
||||
nodeso = 0
|
||||
while True:
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC4
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC4
|
||||
global IsNode
|
||||
global distpoll
|
||||
if distpoll:
|
||||
@@ -261,11 +102,11 @@ def printworker():
|
||||
memc_touch(master_tag, 10)
|
||||
nodes = memc.get(nodes_tag)
|
||||
if nodes is None and not memc_alive():
|
||||
print "WARNING: Lost Memcached. Taking over all devices. Nodes will quit shortly."
|
||||
print("WARNING: Lost Memcached. Taking over all devices. Nodes will quit shortly.")
|
||||
distpoll = False
|
||||
nodes = nodeso
|
||||
if nodes is not nodeso:
|
||||
print "INFO: %s Node(s) Total" % (nodes)
|
||||
print("INFO: %s Node(s) Total" % (nodes))
|
||||
nodeso = nodes
|
||||
else:
|
||||
memc_touch(nodes_tag, 10)
|
||||
@@ -280,7 +121,7 @@ def printworker():
|
||||
continue
|
||||
else:
|
||||
worker_id, device_id, elapsed_time = print_queue.get()
|
||||
# EOC4
|
||||
# EOC4
|
||||
global real_duration
|
||||
global per_device_duration
|
||||
global polled_devices
|
||||
@@ -288,38 +129,39 @@ def printworker():
|
||||
per_device_duration[device_id] = elapsed_time
|
||||
polled_devices += 1
|
||||
if elapsed_time < step:
|
||||
print "INFO: worker %s finished device %s in %s seconds" % (worker_id, device_id, elapsed_time)
|
||||
print("INFO: worker %s finished device %s in %s seconds" % (worker_id, device_id, elapsed_time))
|
||||
else:
|
||||
print "WARNING: worker %s finished device %s in %s seconds" % (worker_id, device_id, elapsed_time)
|
||||
print("WARNING: worker %s finished device %s in %s seconds" % (worker_id, device_id, elapsed_time))
|
||||
print_queue.task_done()
|
||||
|
||||
|
||||
"""
|
||||
This class will fork off single instances of the poller.php process, record
|
||||
how long it takes, and push the resulting reports to the printer queue
|
||||
"""
|
||||
|
||||
|
||||
def poll_worker():
|
||||
while True:
|
||||
device_id = poll_queue.get()
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC5
|
||||
if not distpoll or memc.get('poller.device.%s.%s'% (device_id, time_tag)) is None:
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC5
|
||||
if not distpoll or memc.get('poller.device.%s.%s' % (device_id, time_tag)) is None:
|
||||
if distpoll:
|
||||
result = memc.add('poller.device.%s.%s'% (device_id, time_tag), config['distributed_poller_name'], step)
|
||||
result = memc.add('poller.device.%s.%s' % (device_id, time_tag), config['distributed_poller_name'],
|
||||
step)
|
||||
if not result:
|
||||
print "This device (%s) appears to be being polled by another poller" % (device_id)
|
||||
print("This device (%s) appears to be being polled by another poller" % (device_id))
|
||||
poll_queue.task_done()
|
||||
continue
|
||||
if not memc_alive() and IsNode:
|
||||
print "Lost Memcached, Not polling Device %s as Node. Master will poll it." % device_id
|
||||
print("Lost Memcached, Not polling Device %s as Node. Master will poll it." % device_id)
|
||||
poll_queue.task_done()
|
||||
continue
|
||||
# EOC5
|
||||
# EOC5
|
||||
try:
|
||||
start_time = time.time()
|
||||
|
||||
output = "-d >> %s/poll_device_%s.log" % (log_dir, device_id) if debug else ">> /dev/null"
|
||||
command = "/usr/bin/env php %s -h %s %s 2>&1" % (poller_path, device_id, output)
|
||||
# TODO: replace with command_runner
|
||||
subprocess.check_call(command, shell=True)
|
||||
|
||||
elapsed_time = int(time.time() - start_time)
|
||||
@@ -330,88 +172,238 @@ def poll_worker():
|
||||
pass
|
||||
poll_queue.task_done()
|
||||
|
||||
poll_queue = Queue.Queue()
|
||||
print_queue = Queue.Queue()
|
||||
|
||||
print "INFO: starting the poller at %s with %s threads, slowest devices first" % (time.strftime("%Y-%m-%d %H:%M:%S"),
|
||||
amount_of_workers)
|
||||
if __name__ == '__main__':
|
||||
logger = LNMS.logger_get_logger(LOG_FILE, debug=_DEBUG)
|
||||
|
||||
for device_id in devices_list:
|
||||
poll_queue.put(device_id)
|
||||
install_dir = os.path.dirname(os.path.realpath(__file__))
|
||||
config_file = install_dir + '/config.php'
|
||||
|
||||
for i in range(amount_of_workers):
|
||||
t = threading.Thread(target=poll_worker)
|
||||
t.setDaemon(True)
|
||||
t.start()
|
||||
LNMS.check_for_file(config_file)
|
||||
|
||||
p = threading.Thread(target=printworker)
|
||||
p.setDaemon(True)
|
||||
p.start()
|
||||
try:
|
||||
conf = LNMS.get_config_data(install_dir)
|
||||
config = json.loads(conf)
|
||||
except:
|
||||
print("ERROR: Could not load or parse configuration, are PATHs correct?")
|
||||
sys.exit(2)
|
||||
|
||||
try:
|
||||
poll_queue.join()
|
||||
print_queue.join()
|
||||
except (KeyboardInterrupt, SystemExit):
|
||||
raise
|
||||
poller_path = config['install_dir'] + '/poller.php'
|
||||
log_dir = config['log_dir']
|
||||
|
||||
total_time = int(time.time() - s_time)
|
||||
# TODO: Use LibreNMS.DB
|
||||
db_username = config['db_user']
|
||||
db_password = config['db_pass']
|
||||
db_port = int(config['db_port'])
|
||||
|
||||
print "INFO: poller-wrapper polled %s devices in %s seconds with %s workers" % (polled_devices, total_time, amount_of_workers)
|
||||
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC6
|
||||
if distpoll or memc_alive():
|
||||
master = memc.get(master_tag)
|
||||
if master == config['distributed_poller_name'] and not IsNode:
|
||||
print "Wait for all poller-nodes to finish"
|
||||
nodes = memc.get(nodes_tag)
|
||||
while nodes > 0 and nodes is not None:
|
||||
try:
|
||||
time.sleep(1)
|
||||
nodes = memc.get(nodes_tag)
|
||||
except:
|
||||
pass
|
||||
print "Clearing Locks for %s" % time_tag
|
||||
x = minlocks
|
||||
while x <= maxlocks:
|
||||
res = memc.delete('poller.device.%s.%s' % (x, time_tag))
|
||||
x += 1
|
||||
print "%s Locks Cleared" % x
|
||||
print "Clearing Nodes"
|
||||
memc.delete(master_tag)
|
||||
memc.delete(nodes_tag)
|
||||
if config['db_socket']:
|
||||
db_server = config['db_host']
|
||||
db_socket = config['db_socket']
|
||||
else:
|
||||
memc.decr(nodes_tag)
|
||||
print "Finished %.3fs after interval start." % (time.time() - int(time_tag))
|
||||
# EOC6
|
||||
db_server = config['db_host']
|
||||
db_socket = None
|
||||
|
||||
show_stopper = False
|
||||
db_dbname = config['db_name']
|
||||
|
||||
db = db_open()
|
||||
cursor = db.cursor()
|
||||
query = "update pollers set last_polled=NOW(), devices='%d', time_taken='%d' where poller_name='%s'" % (polled_devices,
|
||||
total_time, config['distributed_poller_name'])
|
||||
response = cursor.execute(query)
|
||||
if response == 1:
|
||||
db.commit()
|
||||
else:
|
||||
query = "insert into pollers set poller_name='%s', last_polled=NOW(), devices='%d', time_taken='%d'" % (
|
||||
config['distributed_poller_name'], polled_devices, total_time)
|
||||
if 'rrd' in config and 'step' in config['rrd']:
|
||||
step = config['rrd']['step']
|
||||
else:
|
||||
step = 300
|
||||
|
||||
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC1
|
||||
if 'distributed_poller_group' in config:
|
||||
poller_group = str(config['distributed_poller_group'])
|
||||
else:
|
||||
poller_group = False
|
||||
|
||||
if ('distributed_poller' in config and
|
||||
'distributed_poller_memcached_host' in config and
|
||||
'distributed_poller_memcached_port' in config and
|
||||
config['distributed_poller']):
|
||||
|
||||
time_tag = str(get_time_tag(step))
|
||||
master_tag = "poller.master." + time_tag
|
||||
nodes_tag = "poller.nodes." + time_tag
|
||||
|
||||
try:
|
||||
import memcache
|
||||
import uuid
|
||||
|
||||
memc = memcache.Client([config['distributed_poller_memcached_host'] + ':' +
|
||||
str(config['distributed_poller_memcached_port'])])
|
||||
if str(memc.get(master_tag)) == config['distributed_poller_name']:
|
||||
print("This system is already joined as the poller master.")
|
||||
sys.exit(2)
|
||||
if memc_alive():
|
||||
if memc.get(master_tag) is None:
|
||||
print("Registered as Master")
|
||||
memc.set(master_tag, config['distributed_poller_name'], 10)
|
||||
memc.set(nodes_tag, 0, step)
|
||||
IsNode = False
|
||||
else:
|
||||
print("Registered as Node joining Master %s" % memc.get(master_tag))
|
||||
IsNode = True
|
||||
memc.incr(nodes_tag)
|
||||
distpoll = True
|
||||
else:
|
||||
print("Could not connect to memcached, disabling distributed poller.")
|
||||
distpoll = False
|
||||
IsNode = False
|
||||
except SystemExit:
|
||||
raise
|
||||
except ImportError:
|
||||
print("ERROR: missing memcache python module:")
|
||||
print("On deb systems: apt-get install python-memcache")
|
||||
print("On other systems: easy_install python-memcached")
|
||||
print("Disabling distributed poller.")
|
||||
distpoll = False
|
||||
else:
|
||||
distpoll = False
|
||||
# EOC1
|
||||
|
||||
s_time = time.time()
|
||||
real_duration = 0
|
||||
per_device_duration = {}
|
||||
polled_devices = 0
|
||||
|
||||
"""
|
||||
Take the amount of threads we want to run in parallel from the commandline
|
||||
if None are given or the argument was garbage, fall back to default of 16
|
||||
"""
|
||||
usage = "usage: %prog [options] <workers> (Default: 16 (Do not set too high)"
|
||||
description = "Spawn multiple poller.php processes in parallel."
|
||||
parser = OptionParser(usage=usage, description=description)
|
||||
parser.add_option('-d', '--debug', action='store_true', default=False,
|
||||
help="Enable debug output. WARNING: Leaving this enabled will consume a lot of disk space.")
|
||||
(options, args) = parser.parse_args()
|
||||
|
||||
debug = options.debug
|
||||
try:
|
||||
amount_of_workers = int(args[0])
|
||||
except (IndexError, ValueError):
|
||||
amount_of_workers = 16
|
||||
|
||||
devices_list = []
|
||||
|
||||
"""
|
||||
This query specificly orders the results depending on the last_polled_timetaken variable
|
||||
Because this way, we put the devices likely to be slow, in the top of the queue
|
||||
thus greatening our chances of completing _all_ the work in exactly the time it takes to
|
||||
poll the slowest device! cool stuff he
|
||||
"""
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC2
|
||||
if poller_group is not False:
|
||||
query = 'select device_id from devices where poller_group IN(' + poller_group + \
|
||||
') and disabled = 0 order by last_polled_timetaken desc'
|
||||
else:
|
||||
query = 'select device_id from devices where disabled = 0 order by last_polled_timetaken desc'
|
||||
# EOC2
|
||||
|
||||
db = LNMS.db_open(db_socket, db_server, db_port, db_username, db_password, db_dbname)
|
||||
cursor = db.cursor()
|
||||
cursor.execute(query)
|
||||
db.commit()
|
||||
db.close()
|
||||
devices = cursor.fetchall()
|
||||
for row in devices:
|
||||
devices_list.append(int(row[0]))
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC3
|
||||
if distpoll and not IsNode:
|
||||
query = "select max(device_id),min(device_id) from devices"
|
||||
cursor.execute(query)
|
||||
devices = cursor.fetchall()
|
||||
maxlocks = devices[0][0] or 0
|
||||
minlocks = devices[0][1] or 0
|
||||
# EOC3
|
||||
db.close()
|
||||
|
||||
poll_queue = queue.Queue()
|
||||
print_queue = queue.Queue()
|
||||
|
||||
if total_time > step:
|
||||
print "WARNING: the process took more than %s seconds to finish, you need faster hardware or more threads" % step
|
||||
print "INFO: in sequential style polling the elapsed time would have been: %s seconds" % real_duration
|
||||
for device in per_device_duration:
|
||||
if per_device_duration[device] > step:
|
||||
print "WARNING: device %s is taking too long: %s seconds" % (device, per_device_duration[device])
|
||||
show_stopper = True
|
||||
if show_stopper:
|
||||
print "ERROR: Some devices are taking more than %s seconds, the script cannot recommend you what to do." % step
|
||||
print(
|
||||
"INFO: starting the poller at %s with %s threads, slowest devices first" % (time.strftime("%Y-%m-%d %H:%M:%S"),
|
||||
amount_of_workers))
|
||||
|
||||
for device_id in devices_list:
|
||||
poll_queue.put(device_id)
|
||||
|
||||
for i in range(amount_of_workers):
|
||||
t = threading.Thread(target=poll_worker)
|
||||
t.setDaemon(True)
|
||||
t.start()
|
||||
|
||||
p = threading.Thread(target=printworker)
|
||||
p.setDaemon(True)
|
||||
p.start()
|
||||
|
||||
try:
|
||||
poll_queue.join()
|
||||
print_queue.join()
|
||||
except (KeyboardInterrupt, SystemExit):
|
||||
raise
|
||||
|
||||
total_time = int(time.time() - s_time)
|
||||
|
||||
print("INFO: poller-wrapper polled %s devices in %s seconds with %s workers" % (
|
||||
polled_devices, total_time, amount_of_workers))
|
||||
|
||||
# (c) 2015, GPLv3, Daniel Preussker <f0o@devilcode.org> <<<EOC6
|
||||
if distpoll or memc_alive():
|
||||
master = memc.get(master_tag)
|
||||
if master == config['distributed_poller_name'] and not IsNode:
|
||||
print("Wait for all poller-nodes to finish")
|
||||
nodes = memc.get(nodes_tag)
|
||||
while nodes is not None and nodes > 0:
|
||||
try:
|
||||
time.sleep(1)
|
||||
nodes = memc.get(nodes_tag)
|
||||
except:
|
||||
pass
|
||||
print("Clearing Locks for %s" % time_tag)
|
||||
x = minlocks
|
||||
while x <= maxlocks:
|
||||
res = memc.delete('poller.device.%s.%s' % (x, time_tag))
|
||||
x += 1
|
||||
print("%s Locks Cleared" % x)
|
||||
print("Clearing Nodes")
|
||||
memc.delete(master_tag)
|
||||
memc.delete(nodes_tag)
|
||||
else:
|
||||
memc.decr(nodes_tag)
|
||||
print("Finished %.3fs after interval start." % (time.time() - int(time_tag)))
|
||||
# EOC6
|
||||
|
||||
show_stopper = False
|
||||
|
||||
db = LNMS.db_open(db_socket, db_server, db_port, db_username, db_password, db_dbname)
|
||||
cursor = db.cursor()
|
||||
query = "update pollers set last_polled=NOW(), devices='%d', time_taken='%d' where poller_name='%s'" % (
|
||||
polled_devices,
|
||||
total_time,
|
||||
config['distributed_poller_name'])
|
||||
response = cursor.execute(query)
|
||||
if response == 1:
|
||||
db.commit()
|
||||
else:
|
||||
recommend = int(total_time / step * amount_of_workers + 1)
|
||||
print "WARNING: Consider setting a minimum of %d threads. (This does not constitute professional advice!)" % recommend
|
||||
query = "insert into pollers set poller_name='%s', last_polled=NOW(), devices='%d', time_taken='%d'" % (
|
||||
config['distributed_poller_name'], polled_devices, total_time)
|
||||
cursor.execute(query)
|
||||
db.commit()
|
||||
db.close()
|
||||
|
||||
sys.exit(2)
|
||||
if total_time > step:
|
||||
print(
|
||||
"WARNING: the process took more than %s seconds to finish, you need faster hardware or more threads" % step)
|
||||
print("INFO: in sequential style polling the elapsed time would have been: %s seconds" % real_duration)
|
||||
for device in per_device_duration:
|
||||
if per_device_duration[device] > step:
|
||||
print("WARNING: device %s is taking too long: %s seconds" % (device, per_device_duration[device]))
|
||||
show_stopper = True
|
||||
if show_stopper:
|
||||
print(
|
||||
"ERROR: Some devices are taking more than %s seconds, the script cannot recommend you what to do." % step)
|
||||
else:
|
||||
recommend = int(total_time / step * amount_of_workers + 1)
|
||||
print(
|
||||
"WARNING: Consider setting a minimum of %d threads. (This does not constitute professional advice!)" % recommend)
|
||||
|
||||
sys.exit(2)
|
||||
|
||||
Reference in New Issue
Block a user