Hello Team,
We are currently using Hadoop HDFS version 2.7.3 at HDFS Client Driver & HDFS
Server. We have following queries:
1. We are planning to move HDFS Client Driver to latest stable version of
HDFS 3.3.3.
* Can you please let us know if there are any HDFS Client level API
changes in 3.3.3 version from older version of 2.7.3 which are not backward
compatible.
* Suppose we move HDFS Client to version 3.3.3 and HDFS Server remains
on older version 2.7.3. Is there any functionality present in older HDFS Client
version 2.7.3 which shall not work if we upgrade HDFS Client to version 3.3.3
with HDFS Server still on older release 2.7.3?
1. I have gone through this Hadoop documentation
link<https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/Compatibility.html#Wire_Protocols>
where there is mention of "forward compatible across minor releases within a
major version". However I am not able to find mention of compatibility across
Major versions.
* Could you please point me to compatibility matrix and/or statement
which can be used to deduce the compatibility of the new client driver with old
released Hadoop servers & vice-versa.
Regards,
Deepti Sharma
PMP(r) & ITIL
