Wei-Chiu Chuang created HDFS-11035:
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Summary: Better documentation for maintenace mode and upgrade
domain
Key: HDFS-11035
URL: https://issues.apache.org/jira/browse/HDFS-11035
Project: Hadoop HDFS
Issue Type: Sub-task
Components: datanode, documentation
Affects Versions: 2.9.0
Reporter: Wei-Chiu Chuang
HDFS-7541 added upgrade domain and HDFS-7877 added maintenance mode. Existing
documentation about these two features are scarce and the implementation have
evolved from the original design doc. Looking at code and Javadoc and I still
don't quite get how I can get datanodes into maintenance mode/ set up a upgrade
domain.
File this jira to propose that we write an up-to-date description of these two
features.
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