Docker运行rake任务时在Rails4中记录问题 [英] Log issue in Rails4 with Docker running rake task

问题描述

我的rails4应用程序正在使用docker运行.它运行一个rake任务，用于从AWS SQS提取消息.

My rails4 application is running with docker. It runs a rake task for fetching messages from AWS SQS.

我遇到的问题是日志无法及时显示在控制台中.在出现异常/错误之前，控制台不会显示任何内容.换句话说，如果我的应用程序运行正常，则不会有任何日志进入控制台.但是，如果应用程序出错，则所有日志(信息，警告和错误)都将汇总在一起！

The problem I met is that logs can't show up in a console in time. The console doesn't show anything until exception/error comes. In other words, if my application works fine, no logs come to console. But if application went wrong, all the logs(info, warn and error) come together!

我已经将 config/production.rb 配置为打击:

config.logger = Logger.new(STDOUT)
config.logger.level = Logger.const_get('INFO')
config.log_level = :info

我在Google上搜索耙任务日志无法正常工作"，但没有任何用处.这是Rails日志问题还是rake任务日志问题，还是docker问题?

I google 'rake task log was not working', but nothing useful. Is this a rails log problem or a rake task log problem, or maybe a docker problem?

希望得到一些建议！

推荐答案

尝试禁用对STDOUT的输出缓冲.您可以通过在耙任务中添加以下行来完成此操作:

Try disabling output buffering to STDOUT. You can do this by adding this line to your rake task:

$stdout.sync = true

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