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When upgrading hadoop components from source, are there any compatibility issues?



I am new when it comes to upgrading hadoop components from source.

I am wondering if there are any compatibility issues when upgrading from source.


For example my current HDFS version is 2.7.3.

If I were to upgrade to the newest version of HDFS from source, I am wondering if there will be any incompatibility issues. Also is it possible to do rolling upgrades or would I need to schedule a maintenance window to upgrade the hadoop cluster from source.


Can someone please also help redirect me to where I can find more information on which versions of each of the hadoop components that I can upgrade my hadoop cluster with?


Any information is much appreciated.