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From Debraj Manna <subharaj.ma...@gmail.com>
Subject Re: How to do rolling upgrade of a hadoop cluster with hbase?
Date Mon, 18 Dec 2017 14:17:12 GMT
Thanks AD.

When you say one at a time it means I should upgrade a ResourceManager node
and once it is fully upgraded and up, move to the next ResourceManager node?

On Mon, Dec 18, 2017 at 7:41 PM, A D <askdba@live.com> wrote:

> I strongly recommend following
> http://hadoop.apache.org/docs/r2.6.5/hadoop-project-dist/hadoop-hdfs/
> HdfsRollingUpgrade.html
> for rolling upgrade.
>
> HBase is no different when it comes to rolling upgrade. There is no
> special command that you need to execute. Below are the steps that I
> would follow:
>
> 1. Upgrade the HDFS:
>
> Once HDFS upgrade is complete:
>
> 2. Upgrade ResourceManager nodes (one at a time).
> 3. Upgrade NodeManagers(one at a time).
>
> Follow step 2 and 3 for HBase master and RegionServers. I would wait for
> RIT to settle after shutting down a region server.
>
> Please refer to product documentation in case you are using a particular
> distribution (Cloudera, MapR or Hortonworks).
>
>
> On 12/18/2017 08:52 AM, Debraj Manna wrote:
> > I am having a cluster like below
> >
> >
> >     - 3 Hbase Master (1 Active & 2 standby)
> >     - 4 Region Servers
> >     - 4 Data Nodes
> >     - 1 Primary & 1 Secondary Name Node
> >     - 3 Journal Node
> >     - 4 Nodemanager
> >     - 3 Resource Manager (1 Active & 2 standby)
> >
> >
> > Can someone let me know how can I plan a rolling upgrade of the above
> > cluster with minimum downtime?
> >
> >
> >     - Hadoop - 2.6.0
> >     - Yarn - 2.6.0
> >     - Hbase - 1.2.0
> >
> > Thanks,
> >
>
> --
> Thank you,
> A.D
> askdba@live.com
>
>

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