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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12374) Description of hdfs expunge command is confusing
Date Mon, 07 Sep 2015 02:58:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14733219#comment-14733219
] 

Hadoop QA commented on HADOOP-12374:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  20m 10s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:red}-1{color} | tests included |   0m  0s | The patch doesn't appear to include any
new or modified tests.  Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. |
| {color:green}+1{color} | javac |   7m 37s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 48s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 23s | The applied patch does not increase
the total number of release audit warnings. |
| {color:green}+1{color} | site |   3m  0s | Site still builds. |
| {color:green}+1{color} | checkstyle |   1m  7s | There were no new checkstyle issues. |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 27s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 32s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 51s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | common tests |  22m 45s | Tests passed in hadoop-common. |
| | |  68m 42s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12754418/HADOOP-12374.001.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle site |
| git revision | trunk / 9b68577 |
| hadoop-common test log | https://builds.apache.org/job/PreCommit-HADOOP-Build/7610/artifact/patchprocess/testrun_hadoop-common.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/7610/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf906.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep
3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/7610/console |


This message was automatically generated.

> Description of hdfs expunge command is confusing
> ------------------------------------------------
>
>                 Key: HADOOP-12374
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12374
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: documentation, trash
>    Affects Versions: 2.7.0, 2.7.1
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>            Priority: Trivial
>              Labels: docuentation, newbie, suggestions, trash
>         Attachments: HADOOP-12374.001.patch
>
>
> Usage: hadoop fs -expunge
> Empty the Trash. Refer to the HDFS Architecture Guide for more information on the Trash
feature.
> this description is confusing. It gives user the impression that this command will empty
trash, but actually it only removes old checkpoints. If user sets a pretty long value for
fs.trash.interval, this command will not remove anything until checkpoints exist longer than
this value.



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