在运行时清除日志文件:被另一个进程错误使用 [英] Clear a log file at runtime:Used by another process error

问题描述

我在我的应用程序中使用了 serilog 框架.在我的应用程序中，当日志文件大小达到 2MB 时，我通过将现有文件从 file.log 重命名为 file.log.bak 并创建一个新的 file.log 来创建日志文件的备份.在运行时，我在读取日志文件时遇到问题，显示另一个进程使用进程日志文件"错误.所以我用下面的代码来读取 serilog 文件的内容.

I am using serilog framework in my application. In my application when the log file size reaches 2MB, im creating a backup of log file by renaming the existing file from file.log to file.log.bak and creating a new file.log. At runtime i was facing issue reading the log file, "the process logfile is used by another process" error was shown. so i used below code to read the content of serilog file.

Stream stream = File.Open (_filepath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
StreamReader streamReader = new StreamReader (stream);
string str = streamReader.ReadToEnd ();

但现在我无法清除日志文件.我犯了同样的错误.如何在运行时清除日志文件的内容?

But now im not able to clear the log file. I get the same error. How do i clear the content of log file at runtime?

推荐答案

如果你有一个如下的记录器

If you have a logger instante as below

var _logger = new LoggerConfiguration()
                .WriteTo.File("Logs/log.log", shared: true)
                .CreateLogger();

您需要在处理当前日志文件之前处理它

You will need to dispose it before dealing with current log file

_logger.Dispose();

然后做需要的修改

string str = string.Empty;
using (Stream stream = System.IO.File.Open("Logs/log.log", FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
    using (StreamReader streamReader = new StreamReader(stream))
    {
        str = streamReader.ReadToEnd();
        //.....
    }
}

并再次创建新的记录器实例，以便您可以继续记录

and create new logger instance again so you can continue logging

_logger = new LoggerConfiguration()
    .WriteTo.File("Logs/log.log", shared: true)
    .CreateLogger();

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