I read through the link you provided, Stephan. However, I am still confused. The instructions mention specific jar files for Logback, I am not sure which of the log4j 2.x jars I need to put in the the flink /lib directory. I tried various combinations of log4j-1.2-api-2.8.jar, log4j-slf4j-impl-2.8.jar, log4j-to-slf4j-2.8.jar, and renamed the stock log4j-1.2.17.jar and slf4j-log4j12-1.7.7.jar, but then the job manager would not start, and threw a 'NoClassDefFoundError: org/apache/logging/log4j/LogManager'. And this is without deploying my job out there, so I don't think any of the "Use Logback when running Flink out of the IDE / from a Java application" section instructions are relevant.
Can someone be more specific how to do this? If I get it to work, I'll be happy to formally document it in whatever format would help the project out long term.
Thanks!
16.02.2017, 05:54, "Stephan Ewen" <se...@apache.org>:
Hi!The bundled log4j version (1.x) does not support that.But you can replace the logging jars with those of a different framework (like log4j 2.x), which supports changing the configuration without stopping the application.You don't need to rebuild flink, simply replace two jars in the "lib" folder (and update the config file, because log4j 2.x has a different config format).This guide shows how to swap log4j 1.x for logback, and you should be able to swap in log4j 2.x in the exact same way.On Thu, Feb 16, 2017 at 5:20 AM, Chet Masterson <chet.master...@yandex.com> wrote:Is there a way to reload a log4j.properties file without stopping and starting the job server?
