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https://issues.apache.org/jira/browse/HDFS-1172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14953604#comment-14953604
 ] 

Hadoop QA commented on HDFS-1172:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  21m 28s | Pre-patch trunk compilation is 
healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any 
@author tags. |
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to 
include 1 new or modified test files. |
| {color:green}+1{color} | javac |  10m 51s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |  12m 53s | There were no new javadoc 
warning messages. |
| {color:red}-1{color} | release audit |   0m 20s | The applied patch generated 
1 release audit warnings. |
| {color:red}-1{color} | checkstyle |   1m 37s | The applied patch generated  1 
new checkstyle issues (total was 164, now 163). |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that 
end in whitespace. |
| {color:green}+1{color} | install |   1m 41s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 42s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   3m 11s | The patch does not introduce 
any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | native |   3m 46s | Pre-build of native portion |
| {color:red}-1{color} | hdfs tests | 102m  9s | Tests failed in hadoop-hdfs. |
| | | 158m 43s | |
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|| Reason || Tests ||
| Failed unit tests | hadoop.hdfs.web.TestWebHDFSOAuth2 |
| Timed out tests | org.apache.hadoop.hdfs.qjournal.client.TestQJMWithFaults |
|   | org.apache.hadoop.hdfs.server.namenode.TestNNStorageRetentionFunctional |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12766138/HDFS-1172.014.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / e617cf6 |
| Release Audit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/12934/artifact/patchprocess/patchReleaseAuditProblems.txt
 |
| checkstyle |  
https://builds.apache.org/job/PreCommit-HDFS-Build/12934/artifact/patchprocess/diffcheckstylehadoop-hdfs.txt
 |
| hadoop-hdfs test log | 
https://builds.apache.org/job/PreCommit-HDFS-Build/12934/artifact/patchprocess/testrun_hadoop-hdfs.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/12934/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf900.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-HDFS-Build/12934/console |


This message was automatically generated.

> Blocks in newly completed files are considered under-replicated too quickly
> ---------------------------------------------------------------------------
>
>                 Key: HDFS-1172
>                 URL: https://issues.apache.org/jira/browse/HDFS-1172
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 0.21.0
>            Reporter: Todd Lipcon
>            Assignee: Masatake Iwasaki
>         Attachments: HDFS-1172-150907.patch, HDFS-1172.008.patch, 
> HDFS-1172.009.patch, HDFS-1172.010.patch, HDFS-1172.011.patch, 
> HDFS-1172.012.patch, HDFS-1172.013.patch, HDFS-1172.014.patch, 
> HDFS-1172.014.patch, HDFS-1172.patch, hdfs-1172.txt, hdfs-1172.txt, 
> replicateBlocksFUC.patch, replicateBlocksFUC1.patch, replicateBlocksFUC1.patch
>
>
> I've seen this for a long time, and imagine it's a known issue, but couldn't 
> find an existing JIRA. It often happens that we see the NN schedule 
> replication on the last block of files very quickly after they're completed, 
> before the other DNs in the pipeline have a chance to report the new block. 
> This results in a lot of extra replication work on the cluster, as we 
> replicate the block and then end up with multiple excess replicas which are 
> very quickly deleted.



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