Jackson Wang created HDFS-16589:
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Summary: RBF: Support cluster level SBN read switch in
Router-Based Federation
Key: HDFS-16589
URL: https://issues.apache.org/jira/browse/HDFS-16589
Project: Hadoop HDFS
Issue Type: Task
Components: rbf
Reporter: Jackson Wang
it will add a cluster-level Observer read switch. it will determine which
clusters support observer read and which do not.
when multiple clusters need to be updated in sequence to support SBN, it
requires a switch to control the range of supported cluster.
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