Remove log4j v1 dependency on the existing services in hadoop

log4j hadoop

Solution 1:

Run hadoop classpath, and look at all the paths. Find where log4j-1.2.jar might exist, and remove them.

Note: I don't think you can simply just "swap" Log4j 1.x with 2.x and expect everything to continue working. There should be open JIRA's across various Hadoop-related projects for properly upgrading to Log4j2.

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