一：在gearman任務失敗后，調用task_failed
def task_failed(task, *args):
info = '\n'.join(args)
datetime = local_datetime()
text = '{} FAILED:\n{}\n當前響應worker已關閉\n{}\n-->【{}】'.format(task, info, datetime, task)
print(text)
check_frequency(task)
二：打印失敗信息后，調用check_frequency檢查任務5分鐘內的重啟次數
def check_frequency(task):
instance = TaskReloadMonitor()
now = time.time()
task_info = instance.open(task.lower())
if not task_info:
return
worker = task_info.get('worker')
last_time = task_info.get('last_time')
if not last_time:
task_info['timer'] = 1
task_info['last_time'] = now
instance.write()
task_reload(task, worker, task_info['timer'])
return
if int(now) - int(last_time) > 300:
task_info['timer'] = 1
task_info['last_time'] = now
instance.write()
task_reload(task, worker, task_info['timer'])
return
timer = task_info.get('timer')
if not (timer + 1 > 3):
task_info['timer'] = timer + 1
task_info['last_time'] = now
instance.write()
task_reload(task, worker, task_info['timer'])
三：確認重啟任務后，利用subprocess重啟任務，subprocess.Popen方法可以非阻塞運行cmd命令
def task_reload(task, worker, timer):
from coursepoints.settings import BASE_DIR
manage = os.path.join(BASE_DIR, 'manage.py')
datetime = local_datetime()
command = 'python {} {}'.format(manage, worker)
subprocess.Popen(command, shell=True)
text = '-->task reload:{}\n-->timer:{}\n-->{}'.format(task, timer, datetime)
print(text)
json文件讀寫
class TaskReloadMonitor():
def __init__(self):
pass
@property
def path(self):
path = Path(__file__).parent.joinpath('task.json')
return path
def open(self, task):
try:
f = open(self.path, 'r', encoding='utf8')
data = json.loads(f.read())
f.close()
self.task_data = data
task_info = data.get(task)
return task_info
except Exception as e:
print(e)
return None
def write(self):
try:
f = open(self.path, 'w', encoding='utf8')
data = json.dumps(self.task_data)
f.write(data)
f.close()
except Exception as e:
print(e)
json文件內容
{
"pptconvert": {
"worker": "pptconvert",
"timer": 1,
"last_time": 1555356612.9220166
},
"screencapture": {
"worker": "screencapture",
"timer": 0
},
"snapscreen": {
"worker": "snapscreen",
"timer": 1,
"last_time": 1555441223.166838
}
}
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。
更多文章、技術交流、商務合作、聯系博主
微信掃碼或搜索：z360901061
微信掃一掃加我為好友
QQ號聯系： 360901061
您的支持是博主寫作最大的動力，如果您喜歡我的文章，感覺我的文章對您有幫助，請用微信掃描下面二維碼支持博主2元、5元、10元、20元等您想捐的金額吧，狠狠點擊下面給點支持吧，站長非常感激您！手機微信長按不能支付解決辦法：請將微信支付二維碼保存到相冊，切換到微信，然后點擊微信右上角掃一掃功能，選擇支付二維碼完成支付。
【本文對您有幫助就好】元
