Created on
02-04-2020
04:23 PM
- last edited on
02-04-2020
04:49 PM
by
ask_bill_brooks
Hello,
Thank you for reading this question.
Recently, one of Hadoop clusters we have has been upgraded to Hadoop 3.0 ( CDH 6.3.2 ).
I'm curious that the copied data from Hadoop 3.0 ( by distcp ) can be used by Hadoop 2.6 cluster.
I was able to distcp from Hadoop 3.0 cluster to Hadoop 2.6, but I found out this document.
https://hadoop.apache.org/docs/r3.0.3/hadoop-distcp/DistCp.html#Copying_Between_Versions_of_HDFS
Can you give me some comment for this?
Thank you very much in advance.
Created 02-14-2020 11:38 PM
Wire compatibility
❏ Preserves compatibility with Hadoop 2 clients
❏ Distcp/WebHDFS compatibility preserved
Created 02-14-2020 11:38 PM
Wire compatibility
❏ Preserves compatibility with Hadoop 2 clients
❏ Distcp/WebHDFS compatibility preserved