Ujjawal Kumar created HDFS-16649:
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Summary: Allow an option to automatically bootstrap standby
namenode during startup
Key: HDFS-16649
URL: https://issues.apache.org/jira/browse/HDFS-16649
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Affects Versions: 2.10.1
Reporter: Ujjawal Kumar
Attachments: namenode_startup_error.png
In our production system, we have observed that if a namenode hosting machine
is down for some time, starting the namenode again fails due to an error of
missing edit logs. This always requires doing a manual bootstrap (using command
{{namenode -bootstrapStandby -nonInteractive -force}} ). We should make this
configurable so that a namenode startup can automatically bootstrap if the
issue is due to missing edit logs. !namenode_startup_error.png!
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