celery笔记

安装：pip install celery==4.1.0（django==1.11, redis==2.10.6, django-redis==4.4.0, kombu==4.1.0）
执行异步任务命令(二选一）：
celery -A celery_task.task worker --pool=solo -l info
celery -A celery_task.task worker -l info

执行定时任务命令（需要登录后台管理页面添加任务）：
celery -A celery_task.task worker -l info

保存结果需安装：django-celery-results==1.0.4

Issues with mysql
If you want to run django-celery-results with MySQL, you might run into some issues.

One such issue is when you try to run python manage.py migrate django_celery_results, you might get the following error:

django.db.utils.OperationalError: (1071, 'Specified key was too long; max key length is 767 bytes')
To get around this issue, you can set:

DJANGO_CELERY_RESULTS_TASK_ID_MAX_LENGTH=191
(or any other value if any other db other than MySQL is causing similar issues.)

max_length of 191 seems to work for MySQL.

window开启mysql远程访问方法：
1、放通3306端口，防火墙添加入站规则
2、user表127.0.0.1改为%
3、flush privileges;

mysql设置时区：set global time_zone = '+8:00';