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https://issues.apache.org/jira/browse/HDFS-12186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDFS-12186:
-----------------------------------
Description:
For a cluster of substantial size, INodeAttributeProvider initialization. may
take a long time and it blocks NameNode startup. 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.
was:
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.
> 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
> Assignee: Wei-Chiu Chuang
> Labels: supportability
>
> For a cluster of substantial size, INodeAttributeProvider initialization. may
> take a long time and it blocks NameNode startup. 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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