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我可以使用NLog更新现有的日志条目吗？

[英]Can i update an existing log entry using NLog?

原文 2018-01-11 10:35:51 5 1 c#/ logging/ nlog

I am writing a windows service, that logs quite a few entries using NLog. 我正在编写Windows服务，该服务使用NLog记录了很多条目。
However when it starts logging errors (perhaps due to a longer internet outage), it is not relevant to log the same error every 10th or so seconds. 但是，当它开始记录错误（可能是由于更长的Internet中断时间）时，每10秒钟左右记录一次相同的错误并不重要。
So I tried to look for a way to update an existing log entry, using NLog, as it is familiar to me. 因此，我尝试使用NLog来寻找一种更新现有日志条目的方法，这对我来说是很熟悉的。 - But to no avail... -但无济于事...

Does anyone know of a way to update a single entry of a log, without rewriting the entirety of the file? 有谁知道更新日志的单个条目而不重写整个文件的方法吗？

The program is on a server, and writes to a local .txt file. 该程序在服务器上，并写入本地.txt文件。 Currently using NLog, but i am not sure if it is even possible with NLog. 当前正在使用NLog，但是我不确定是否可以使用NLog。 I have not been able to find anything on it. 我还找不到任何东西。

Thanks for any answers! 感谢您的任何答案！

1 个解决方案

I agree with Jehof. 我同意杰霍夫的观点。 Ideally, logging is append only. 理想情况下，日志记录仅是附加的。

As an alternative; 作为备选; you could potentially write your own custom NLog wrapper that filters duplicate log attempts within a timespan. 您可能会编写自己的自定义NLog包装器，以过滤某个时间段内重复的日志尝试。 see https://github.com/NLog/NLog/wiki/Targets-and-Wrappers for more information about NLog wrappers. 有关NLog包装器的更多信息，请参见https://github.com/NLog/NLog/wiki/Targets-and-Wrappers 。

This blog shows an example about how to write a NLog wrapper. 该博客显示了有关如何编写NLog包装器的示例。 Although the NLog wrapper in this example does not fit your exact scenario, you could probably use it as a baseline for your implementation... 尽管此示例中的NLog包装器并不适合您的确切情况，但是您可以将其用作实现的基准...