Haohui Mai created HDFS-8991:
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Summary: Provide information on BPOfferService in DN JMX and UI
Key: HDFS-8991
URL: https://issues.apache.org/jira/browse/HDFS-8991
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Haohui Mai
Assignee: Mingliang Liu
In cases like HDFS-7714 where the BPOfferService thread is missing, which
require nontrivial effort to debug that which NN that the DN thinks it active /
standby.
It would make sense to make the information more accessible through JMX or Web
UI.
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