Siddharth Wagle created AMBARI-22916:
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Summary: BE: Support Name Federation in Ambari
Key: AMBARI-22916
URL: https://issues.apache.org/jira/browse/AMBARI-22916
Project: Ambari
Issue Type: Epic
Components: ambari-server
Affects Versions: 2.7.0
Reporter: Siddharth Wagle
Assignee: Siddharth Wagle
Fix For: 2.7.0
We are pulling in Name Node federation support in HDFS/HDP 3.0 urgently,
however, all our customers requires Ambari support for NN Federation. This is a
major pain point for many customers and is part of PayPal's get well plan as
well will be required for the large Daimler's deal.
Details
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What NN federation allows is to share the Data Nodes between a set of
independent Name Nodes. Each NN has its own standby and has the meta-data
pointing to the blocks in the data nodes, however, they might share the Data
Nodes. This will let us scale to 250M files for each NN and add more NNs as we
go beyond 250M files.
Ambari support will be required to make sure we can manage and configure NN
federation.
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