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 [email protected]
