Wei-Chiu Chuang created HDFS-12186:
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Summary: Add INodeAttributeProvider startup progress into HDFS Web
UI
Key: HDFS-12186
URL: https://issues.apache.org/jira/browse/HDFS-12186
Project: Hadoop HDFS
Issue Type: Improvement
Components: ui
Reporter: Wei-Chiu Chuang
For a cluster of substantial size, INodeAttributeProvider may take a long time.
We saw a large cluster where part of file system ACLs is managed by Apache
Sentry, and NameNode took a few minutes for the Sentry HDFS NameNode Plugin to
initialize. I suppose the same issue can arise for Apache Ranger and other
INodeAttributeProviders implementation.
It would be nice to add an extra row in NameNode Web UI startup progress, in
addition to "Loading fsimage", "Loading edits", "Saving checkpoint" and "Safe
mode", to give a better visibility what NameNode is doing.
In addition, there might also be a need to add a similar row into Web UI for
loading NameNode plugins. So filing this jira to invite more discussion.
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