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https://issues.apache.org/jira/browse/HADOOP-12484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14961562#comment-14961562
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Hadoop QA commented on HADOOP-12484:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch | 16m 14s | 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 | 8m 17s | There were no new javac warning
messages. |
| {color:green}+1{color} | javadoc | 10m 37s | There were no new javadoc
warning messages. |
| {color:green}+1{color} | release audit | 0m 26s | The applied patch does
not increase the total number of release audit warnings. |
| {color:green}+1{color} | whitespace | 0m 0s | The patch has no lines that
end in whitespace. |
| {color:green}+1{color} | install | 1m 31s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 36s | The patch built with
eclipse:eclipse. |
| {color:green}+1{color} | tools/hadoop tests | 1m 13s | Tests passed in
hadoop-azure. |
| | | 38m 58s | |
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12767149/HADOOP-12484.03.patch |
| Optional Tests | javadoc javac unit |
| git revision | trunk / f9da5cd |
| hadoop-azure test log |
https://builds.apache.org/job/PreCommit-HADOOP-Build/7837/artifact/patchprocess/testrun_hadoop-azure.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HADOOP-Build/7837/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf905.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/7837/console |
This message was automatically generated.
> Single File Rename Throws Incorrectly In Potential Race Condition Scenarios
> ---------------------------------------------------------------------------
>
> Key: HADOOP-12484
> URL: https://issues.apache.org/jira/browse/HADOOP-12484
> Project: Hadoop Common
> Issue Type: Bug
> Components: tools
> Reporter: Gaurav Kanade
> Assignee: Gaurav Kanade
> Attachments: HADOOP-12484.01.patch, HADOOP-12484.02.patch,
> HADOOP-12484.03.patch
>
>
> FinishSingleFileRename function - in the case where src and dst both exist
> gets a lease on src blob to block write access and then deletes the file.
> However in the time between checking existence of source file and acquiring
> lease the file may be deleted by another process (race condition). Presently
> the function simply throws in this scenario. In this case the function should
> treat this as a case where rename is complete; i.e. catch the exception and
> if this is the cause exit gracefully with the result that the rename is
> complete
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