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https://issues.apache.org/jira/browse/HDFS-6682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14066289#comment-14066289
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Hadoop QA commented on HDFS-6682:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12656472/HDFS-6682.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in
hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.ipc.TestIPC
org.apache.hadoop.fs.TestSymlinkLocalFSFileSystem
org.apache.hadoop.fs.TestSymlinkLocalFSFileContext
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/7383//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7383//console
This message is automatically generated.
> Add a metric to expose the timestamp of the oldest under-replicated block
> -------------------------------------------------------------------------
>
> Key: HDFS-6682
> URL: https://issues.apache.org/jira/browse/HDFS-6682
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Akira AJISAKA
> Assignee: Akira AJISAKA
> Attachments: HDFS-6682.patch
>
>
> In the following case, the data in the HDFS is lost and a client needs to put
> the same file again.
> # A Client puts a file to HDFS
> # A DataNode crashes before replicating a block of the file to other DataNodes
> I propose a metric to expose the timestamp of the oldest
> under-replicated/corrupt block. That way client can know what file to retain
> for the re-try.
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