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Ben1996
Silver ⭐️⭐️
June 10, 2024
Solved

Backup Strategy for CDP Private Cloud

We are on CDP 7.1.7 SP2 version

Can I ask what is the best strategy to backup the cluster? We are using 5 phyisical nodes (3 of which holds the actual HDFS data). What is a good strategy for backup?

1. Create another cluster that will act as replica (lower CPU and RAM)

2. In the same cluster, backup / to preserve the OS apps (CM etc.) and /data (HDFS)

Rajat_710
Rajat_710Answer
Gold ⭐️⭐️
June 12, 2024

hey, @Ben1996 what would like to backup is the HDFS data or anything else?

Also, I would like to let you 1 thing if possible add 1 more data node in your cluster as by default you have 3 as RF and if 1 DN goes down then you'll have only 2 DN alive which could be critical for business.

For backing up HDFS data you can create anther cluster with low resources and setup a BDR jobs on it to replicate data from PROD to DR cluster refer to the below link.

 

https://docs.cloudera.com/cdp-private-cloud-upgrade/latest/release-guide/topics/cdpdc-compatibility-matrix-bdr.html

5 replies

Rajat_710
Gold ⭐️⭐️
Rajat_710Answer
Gold ⭐️⭐️
June 12, 2024

hey, @Ben1996 what would like to backup is the HDFS data or anything else?

Also, I would like to let you 1 thing if possible add 1 more data node in your cluster as by default you have 3 as RF and if 1 DN goes down then you'll have only 2 DN alive which could be critical for business.

For backing up HDFS data you can create anther cluster with low resources and setup a BDR jobs on it to replicate data from PROD to DR cluster refer to the below link.

 

https://docs.cloudera.com/cdp-private-cloud-upgrade/latest/release-guide/topics/cdpdc-compatibility-matrix-bdr.html

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Ben1996
Ben1996Author
Silver ⭐️⭐️
June 13, 2024

Thanks Rajat! Does that mean if 1 failed, the entire cluster will not be functional? Thank you for linking the replication manager, so it is essentially option 1 of what i previously thought of.

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Rajat_710
Gold ⭐️⭐️
Gold ⭐️⭐️
July 16, 2024

no @Ben1996 if 1 DN fails it won't crash the cluster but you'll be more vulnerable and run a cluster with only 2 copies of data in DNs which is not recommended for the PROD environment.

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VidyaSargur
Community Manager
Community Manager
July 22, 2024

@Ben1996, Did the response assist in resolving your query? If it did, kindly mark the relevant reply as the solution, as it will aid others in locating the answer more easily in the future.

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Regards, Vidya Sargur, Community Manager Was your question answered? Make sure to mark the answer as the accepted solution. If you find a reply useful, say thanks by clicking on the thumbs up button.
Ben1996
Ben1996Author
Silver ⭐️⭐️
July 22, 2024

Thanks @Rajat_710  and @VidyaSargur  . I already accepted the answer.

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