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https://issues.apache.org/jira/browse/HDFS-10797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15496878#comment-15496878
 ] 

Hadoop QA commented on HDFS-10797:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
22s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m 
 0s{color} | {color:green} The patch appears to include 1 new or modified test 
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 
56s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
49s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
30s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
57s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
15s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
47s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
57s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
50s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
44s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
44s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
48s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
10s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
55s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 88m 23s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
30s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}109m 34s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.datanode.TestDataNodeUUID |
|   | hadoop.hdfs.TestCrcCorruption |
|   | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure |
| Timed out junit tests | org.apache.hadoop.hdfs.TestLeaseRecovery2 |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:9560f25 |
| JIRA Issue | HDFS-10797 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12828842/HDFS-10797.003.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux 31121d442c83 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 |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / b09a03c |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/16770/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/16770/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/16770/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Disk usage summary of snapshots causes renamed blocks to get counted twice
> --------------------------------------------------------------------------
>
>                 Key: HDFS-10797
>                 URL: https://issues.apache.org/jira/browse/HDFS-10797
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Sean Mackrory
>            Assignee: Sean Mackrory
>         Attachments: HDFS-10797.001.patch, HDFS-10797.002.patch, 
> HDFS-10797.003.patch
>
>
> DirectoryWithSnapshotFeature.computeContentSummary4Snapshot calculates how 
> much disk usage is used by a snapshot by tallying up the files in the 
> snapshot that have since been deleted (that way it won't overlap with regular 
> files whose disk usage is computed separately). However that is determined 
> from a diff that shows moved (to Trash or otherwise) or renamed files as a 
> deletion and a creation operation that may overlap with the list of blocks. 
> Only the deletion operation is taken into consideration, and this causes 
> those blocks to get represented twice in the disk usage tallying.



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