我认为，对于logstash 1.4.2，唯一的答案是:

I think, for logstash 1.4.2, the only answer is to:

• 从受监视的目录中移动或删除文件
• 重新启动日志记录

我认为没有其他方法可以让Logstash发布文件句柄处理已处理且不会再添加的日志.

I don't think there's any other way to have logstash release file handles of logs that have been processed and won't be added to any more.