When logging with log4net to a file (using the FileAppender), the FileAppender is holding an exclusive write lock on the file. This doesn't cause any problems, not even when the application is running with multiple threads, because log4net should be…

解决方法: settings中的debug改为false,或者注释掉 参照: https://stackoverflow.com/questions/32521122/cannot-run-in-multiple-processes-ioloop-instance-has-already-been-initialized…

Before you even start trying any of the alternatives provided, ask yourself whether you really need to have multiple processes log to the same file, then don't do it ;-). FileAppender offers pluggable locking models for this usecase but all existing…

Apache log4net™ Config Examples Overview This document presents example configurations for the built-in appenders. These configurations are designed to work with the log4net.Config.DOMConfigurator and the log4net.Repository.Hierarchy.Hierarchy. These…

Overview This document presents example configurations for the built-in appenders. These configurations are designed to work with the log4net.Config.DOMConfigurator and the log4net.Repository.Hierarchy.Hierarchy. These examples are by no means exhaus…

http://logging.apache.org/log4net/release/faq.html#single-file How do I get multiple process to log to the same file? Before you even start trying any of the alternatives provided, ask yourself whether you really need to have multiple processes log t…

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