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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4372) Track NameNode startup progress
Date Wed, 26 Jun 2013 21:53:21 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chris Nauroth updated HDFS-4372:

    Attachment: HDFS-4372.2.patch

I'm attaching version 2 of the patch.  [~jingzhao], here is a summary of how the new patch
addresses your feedback from last time:

# I took your suggestion to under-count slightly on snapshots/reference inodes and then set
count equal to total at the end.  This is a lot simpler than trying to identify whether or
not an inode should be counted.  I tested this with a combination of snapshots and renames
and saw correct results.
# There was not a simple way to present that we didn't need to save the namespace.  I'd like
to defer this to a future enhancement if needed.
# I cleaned up unused imports in {{StartupProgress}}.
# In the internal tracking data structures, I switched from using boxed {{Long}} to primitive
{{long}}.  I also refactored common members into a new base class: {{AbstractTracking}}.

> Track NameNode startup progress
> -------------------------------
>                 Key: HDFS-4372
>                 URL: https://issues.apache.org/jira/browse/HDFS-4372
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: 3.0.0
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-4372.1.patch, HDFS-4372.2.patch
> Track detailed progress information about the steps of NameNode startup to enable display
to users.

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