sam liu created AMBARI-10645:
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Summary: Adjust block replication for clusters with less than 3
DataNodes
Key: AMBARI-10645
URL: https://issues.apache.org/jira/browse/AMBARI-10645
Project: Ambari
Issue Type: Improvement
Components: ambari-server
Affects Versions: 2.2.0
Reporter: sam liu
When we install on a cluster with less than 3 DataNodes, the replication factor
is set to 3 anyway. It does not make sense. We should change this value to a
lower number to avoid missing replicas(for example, if there is just one DN,
set the replication factor to 1).
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