Hello, it’s great to join this mailing list.
Can I ask a question?
Is it possible to downgrade cluster ?
I have already upgrade my cluster’s namenodes(with one stand by for HA) and
several datanodes from 2.5.0 folloing
https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/HdfsR
, August 16, 2016 at 6:02 AM
To: "user@hadoop.apache.org"
Subject: hfs downgrade from 2.7.2 to 2.5.0
Hello, it’s great to join this mailing list.
Can I ask a question?
Is it possible to downgrade cluster ?
I have already upgrade my cluster’s namenodes(with one stand by for HA) and
several
xpect you can start a new rolling
> upgrade and proceed with the upgrade process on just the subset of DataNodes
> still running 2.5.0.
> --Chris Nauroth
>
> From: jinxing
> Date: Tuesday, August 16, 2016 at 6:02 AM
> To: "user@hadoop.apache.org"
> Subject: hfs
/r2.7.2/hadoop-project-dist/hadoop-hdfs/HdfsRollingUpgrade.html#Downgrade
--Chris Nauroth
From: jinxing
Date: Tuesday, August 16, 2016 at 7:44 PM
To: Chris Nauroth , "user@hadoop.apache.org"
Subject: Re: hfs downgrade from 2.7.2 to 2.5.0
Hi, Chirs,
It’s great to get your reply, I
