可以将两个log4j fileappender写入同一文件吗? [英] Can two log4j fileappenders write to the same file?

问题描述

暂时忘了一个问题，为什么你会做这样的事情-如果出于某种原因，两个FileAppender配置了相同的文件，那么此设置会起作用吗?

Forget for a second the question of why on earth would you do such a thing - if, for whatever reason, two FileAppenders are configured with the same file - will this setup work?

推荐答案

Log4j的FileAppender不允许两个JVM写入同一文件.如果尝试这样做，将会得到损坏的日志文件.但是，在审慎模式中，log4j的后继logback允许两个追加器，即使在不同的方式下也是如此. JVM可以写入同一文件.

Log4j's FileAppender does not allow for two JVM's writing to the same file. If you try, you'll get a corrupt log file. However, logback, log4j's successor, in prudent mode allows two appenders even in different JVMs to write to the same file.

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