https://community.cloudera.com/t5/Support-Questions/Distcp-between-Hadoop-2-6-CDH-5-16-2-and-Haddop-3-0-CDH-6-3/m-p/289855#M214496 <P class="p1">Wire compatibility</P><P class="p2">❏ Preserves compatibility with Hadoop 2 clients</P><P class="p2">❏ Distcp/WebHDFS compatibility preserved</P> Sat, 15 Feb 2020 07:38:51 GMT thewayofthinkin 2020-02-15T07:38:51Z https://community.cloudera.com/t5/Support-Questions/Distcp-between-Hadoop-2-6-CDH-5-16-2-and-Haddop-3-0-CDH-6-3/m-p/289122#M214061 <P>Hello,</P> <P>&nbsp;</P> <P>Thank you for reading this question.</P> <P>Recently, one of Hadoop clusters we have has been upgraded to Hadoop 3.0 ( CDH 6.3.2 ).</P> <P>I'm curious that the copied data from Hadoop 3.0 ( by distcp ) can be used by Hadoop 2.6 cluster.</P> <P>I was able to&nbsp; distcp from Hadoop 3.0 cluster to Hadoop 2.6, but I found out this document.</P> <P><A href="https://hadoop.apache.org/docs/r3.0.3/hadoop-distcp/DistCp.html#Copying_Between_Versions_of_HDFS" target="_blank" rel="noopener">https://hadoop.apache.org/docs/r3.0.3/hadoop-distcp/DistCp.html#Copying_Between_Versions_of_HDFS</A></P> <P>&nbsp;</P> <P>Can you give me some comment for this?</P> <P>&nbsp;</P> <P>Thank you very much in advance.</P> Wed, 05 Feb 2020 00:49:17 GMT https://community.cloudera.com/t5/Support-Questions/Distcp-between-Hadoop-2-6-CDH-5-16-2-and-Haddop-3-0-CDH-6-3/m-p/289122#M214061 thewayofthinkin 2020-02-05T00:49:17Z https://community.cloudera.com/t5/Support-Questions/Distcp-between-Hadoop-2-6-CDH-5-16-2-and-Haddop-3-0-CDH-6-3/m-p/289855#M214496 <P class="p1">Wire compatibility</P><P class="p2">❏ Preserves compatibility with Hadoop 2 clients</P><P class="p2">❏ Distcp/WebHDFS compatibility preserved</P> Sat, 15 Feb 2020 07:38:51 GMT https://community.cloudera.com/t5/Support-Questions/Distcp-between-Hadoop-2-6-CDH-5-16-2-and-Haddop-3-0-CDH-6-3/m-p/289855#M214496 thewayofthinkin 2020-02-15T07:38:51Z