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From "jiraposter@reviews.apache.org (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-229) Show last checkpoint time on the webUI
Date Fri, 06 Jan 2012 06:13:40 GMT

    [ https://issues.apache.org/jira/browse/HDFS-229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13181151#comment-13181151
] 

jiraposter@reviews.apache.org commented on HDFS-229:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/3415/
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(Updated 2012-01-06 06:11:36.066658)


Review request for Harsh J.


Summary
-------

This patch provides the following two features:
(1) Show last checkpoint time in NN web UI
(2) Generate metric of last checkpoint time


This addresses bug HDFS-229.
    http://issues.apache.org/jira/browse/HDFS-229


Diffs
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  hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java
eaa431b 
  hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NamenodeJspHelper.java
496423d 
  hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/metrics/NameNodeMetrics.java
a75701e 
  hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeJspHelper.java
6f2aada 

Diff: https://reviews.apache.org/r/3415/diff


Testing
-------


Thanks,

Sho


                
> Show last checkpoint time on the webUI
> --------------------------------------
>
>                 Key: HDFS-229
>                 URL: https://issues.apache.org/jira/browse/HDFS-229
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: Koji Noguchi
>            Assignee: Sho Shimauchi
>            Priority: Minor
>         Attachments: HDFS-229.txt
>
>
> We've had a couple of occasions where secondary namenode fail/die without anyone noticing.
(HADOOP-1695)
> It would be nice if the last checkpoint time can be shown on the namenode webui.
>  

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