How to upgrade Apache Hadoop from 2 4 1 to 2 6 0

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I want to upgrade 2.4.1 to 2.6 stable version. Is it as simple as replacing all the folder contents with the latest ones?
Sep 7, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 449 views

1 answer to this question.

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If the downtime is not an issue, just shut down the cluster (bin/stop-dfs.sh), unzip the archive with hadoop-2.6, copy configuration files that you've changed in 2.4.1 into 2.6, change the hadoop link so that it's now linked to the new hadoop-2.6 folder and run this command:

bin/start-dfs.sh -upgrade

After this, the cluster should be started and working.

You may find more information about hadoop upgrade here

answered Sep 7, 2018 by Frankie
 • 9,830 points

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