安装Mysql  (否则后面 pip install  mysql)  无法安装

#ubuntu
sudo apt-get install libmysqlclient-dev

pip 依赖:

pip install apache-airflow[celery,crypto,mysql,password,redis]

 airflow-LocalExecutor

mysql-airflow

 

 pip install mysqlclient

 

在mysql上执行

create database airflow; —— 创建数据库

GRANT all privileges on airflow.* TO 'airflow'@'%' IDENTIFIED BY '123456'; —— 将数据库airflow的所有权限授权airflow用户,密码123456且该用户可在任何IP段登录操作

FLUSH PRIVILEGES; —— 刷新权限

set explicit_defaults_for_timestamp = 1;

修改airflow配置文件airflow.cfg

sql_alchemy_conn = mysql://airflow:123456@mysqlIP/airflow

修改执行器,使airflow并发调度任务

修改配置文件airflow.cfg

executor = LocalExecutor

重启scheduler即可(默认并发调度16)

初始化数据库

airflow initdb

若之前使用sqllite初始化过可使用airflow resetdb

 
irflow initdb :

出现异常:Exception: Global variable explicit_defaults_for_timestamp needs to be on (1) for mysql

 

解决方式:

https://airflow.readthedocs.io/en/stable/faq.html#how-to-fix-exception-global-variable-explicit-defaults-for-timestamp-needs-to-be-on-1
docker exec -it meu_mysql /bin/bash
 
cd /etc/mysql/
 
 
root@8ab0b9bd6a08:/etc/mysql/conf.d# cat mysql.cnf 
[mysql]
root@8ab0b9bd6a08:/etc/mysql/conf.d# echo '[mysqld]' >> mysql.cnf 
root@8ab0b9bd6a08:/etc/mysql/conf.d# echo 'explicit_defaults_for_timestamp = 1' >> mysql.cnf 
root@8ab0b9bd6a08:/etc/mysql/conf.d# cat mysql.cnf 
[mysql]
[mysqld]
explicit_defaults_for_timestamp = 1
max_allowed_packet= 500M

 


分布式问题

1.需要使用同步方式解决dags目录与worker的同步问题——待解决

2.需要解决scheduler的单点问题,可参考 apache-airflow 调度系统 https://blog.csdn.net/somezz/article/details/82749495

cankao :https://my.oschina.net/u/3770892/blog/3069220

 

 

posted on 2019-10-30 23:41  lshan  阅读(1759)  评论(0编辑  收藏  举报