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README
Apache-2.0

py-snail-job

介绍

snail-job 项目的 python 客户端,当前版本基于服务器版本master分支开发。

snail-job项目 java 后端

基础知识

服务器 <-> 交互

ProcessOn 流程图

基础交互数据

HTTP 头部
host-id: SNAIL_HOST_ID # 客户端ID
host-ip: SNAIL_HOST_IP # 客户端IP,服务器下发消息用到
host-port: SNAIL_HOST_PORT # 客户端PORT,服务器下发消息用到
namespace: SNAIL_NAMESPACE  # 客户端归属 命名空间
group-name: SNAIL_GROUP_NAME # 客户端归属 组名称
token: SNAIL_TOKEN  # 通讯校验 token
交互数据模式 (schema), 计划使用 pydantic 来封装、验证

具体参考 schema.py

{
    "reqId":36,
    "args": []
}

初始化数据

-- 添加 组配置 snail_job_demo_group, SJ_Wyz3dmsdbDOkDujOTSSoBjGQP1BMsVnj
INSERT INTO `sj_group_config` (`group_name`, `description`, `token`, `group_status`, `version`, `group_partition`, `id_generator_mode`, `init_scene`, `bucket_index`) 
VALUES ('snail_job_demo_group', '', 'SJ_Wyz3dmsdbDOkDujOTSSoBjGQP1BMsVnj', 1, 1, 0, 2, 1, 119);

-- 添加测试定时任务
INSERT INTO `sj_job` (`group_name`, `job_name`, `args_str`, `args_type`, `next_trigger_at`, `job_status`, `task_type`, `route_key`, `executor_type`, `executor_info`, `trigger_type`, `trigger_interval`, `block_strategy`, `executor_timeout`, `max_retry_times`, `parallel_num`, `retry_interval`, `bucket_index`, `resident`, `description`, `ext_attrs`, `deleted`) VALUES ('snail_job_demo_group', 'test', '', 1, 1719328740283, 1, 1, 4, 1, 'testJobExecutor', 2, '60', 1, 60, 3, 1, 1, 61, 0, '', '', 0);

开始调试

# 复制 `.env.example` 为 `.env`
cp .env.example .env # windows命令为 copy
# 创建虚拟环境
python -m venv venv
# 安装依赖
pip install -r requirements.txt
# 启动程序
python main.py

登录后台,能看到对应host-id 为 py-xxxxxx 的客户端

任务

  • 实现工具类对本地任务进行注册,类似 Java 的注解及扫描
  • 如果管理正在运行的任务,特别是终止,以为着需要一个全局容器来管理正在运行的任务
  • 任务执行线程池
  • 执行结果上报
  • logging 封装,实现SnailHttpHandler上报日志
  • SnailLog.LOCAL, SnailLog.REMOTE,添加handler,让其同时打印日志到console及文件
  • 需要修改服务器,添加执行器类型python
  • pythonic 项目工程化,pytest,python 包管理
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