The foregoing " CDH CM version 6.0.1 upgrade to the current version 6.2.0 CM (CentOS 7.x) ."
To undertake the above, when we complete the upgrade CM 6.2.0, we have completed the equivalent of 80% of minor upgrades.
Surprisingly CDH upgrade to upgrade their version of the CM than easier.
First of CM data is backed up, or see steps refer to the former official document.
Then we have to first download the latest version 6.2.0 CDH package
Not downloaded will be displayed here DOWNLOAD button, click here to download the new version of the package.
Configure the new parcels warehouse address 6.2.0
Then wait for the download to complete.
Then we have two ways to trigger cluster upgrade.
1. Click on this interface directly distribute distribute.
2. go to home page drop-down menu, click "Upgrade the cluster upgrade cluster" button.
The second is recommended, regardless of use that will eventually come to the same place.
Then follow the way of options and configurations, concerns their own interest.
And then goes all the way to congratulate the upgrade is complete it will be!
Let us look at the latest version
Displacement hdfs that yellow is the addition of a CM detection ec error correction code, I have not tested this feature, because hdfs version does not change can determine this should be a new test, temporarily ignored.
Also note after the upgrade is complete, the final step of the official 8 hdfs metadata.
After performing this step can not be rolled back hdfs without prior hdfs backup.
We can perform this step before, has been running for some time to ensure that our entire upgrade without any problems, such as running a one week about her.
Finally, we finally upgraded activate namenode metadata node to complete the entire upgrade process.
the above.
Reference:
https://www.cloudera.com/documentation/enterprise/upgrade/topics/ug_cdh_upgrade.html