Hadoop - Upgrade Issue

Tomlight · May 1, 2014, 7:37pm

Hi All,

I was recently trying to upgrade Hadoop from CDH4 to CDH5 ,however after upgrade found below issue , Looks like this is a known issue but unable to find a proper solution for it .

log4j:ERROR Could not find value for key log4j.appender.EventCounter log4j:ERROR Could not instantiate appender named "EventCounter".

SriniShoo · May 1, 2014, 10:13pm

Can you show us the log4j.properties file content

Tomlight · May 2, 2014, 1:01pm

Hi Srini ,

I have attached log4j file. Thanks for looking into it

diceguy · October 1, 2014, 12:01pm

I believe appender for EventCounter need to define again it's look like it's didn't got initialing properly.once you made changes do rolling restart of your cluster.