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EMR in 2 AZs and High Availability

0

Can you deploy multiple EMR master nodes in different AZs and failover between them? Or - how do I make my EMR cluster HA?

Can you schedule core nodes in 2 AZs?

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Analytics
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Amazon EMR
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English
AWS
AWS-User-8385190
asked 3 years ago3344 views
3 Answers
0
Accepted Answer

No, currently Amazon EMR always launch all the nodes (master, core task) in a single AZ. With Instance fleet option you can specify multiple subnet while launching the cluster, however EMR will automatically pick one subnet (AZ) (based on best availability of nodes ).

With EMR multi master feature, EMR does launch 3 master nodes however they will be in same AZs only. Multi master feature is to reduce the probability of cluster termination due to master node termination. (which is a single point of failure in case of single master node cluster). In addition to that it does implement HA functionality for HDFS Namenode, Yarn Resource manager, Hbase master etc...

AWS
Partha_s
answered 3 years ago
0

I have founded a reference what it can help you.

https://aws.amazon.com/es/blogs/big-data/disaster-recovery-considerations-with-amazon-emr-on-amazon-ec2-for-spark-workloads/

rePost-IvanOlicar
answered 10 months ago
0

Is it safe to say that , in terms of availability EMR serverless would be a better option than EMR ?

JackSparrow
answered 3 months ago

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