[ 
https://issues.apache.org/jira/browse/HDFS-14242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16754949#comment-16754949
 ] 

Hadoop QA commented on HDFS-14242:
----------------------------------

| (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 
35s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 24m 
36s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
17s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
 0s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
17s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
14m 37s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
57s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
49s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
 1s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
45s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
59s{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} shadedclient {color} | {color:green} 
14m 50s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
10s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
50s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 97m  1s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
32s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}164m 37s{color} | 
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestClientMetrics |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f |
| JIRA Issue | HDFS-14242 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12956680/HDFS-14242.001.patch |
| Optional Tests |  dupname  asflicense  compile  javac  javadoc  mvninstall  
mvnsite  unit  shadedclient  findbugs  checkstyle  |
| uname | Linux e1282267257f 3.13.0-153-generic #203-Ubuntu SMP Thu Jun 14 
08:52:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 5d578d0 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_191 |
| findbugs | v3.1.0-RC1 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/26080/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/26080/testReport/ |
| Max. process+thread count | 2955 (vs. ulimit of 10000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/26080/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> OIV WebImageViewer: NPE when param op is not specified
> ------------------------------------------------------
>
>                 Key: HDFS-14242
>                 URL: https://issues.apache.org/jira/browse/HDFS-14242
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 3.2.0, 3.1.1
>            Reporter: Siyao Meng
>            Assignee: Siyao Meng
>            Priority: Major
>         Attachments: HDFS-14242.001.patch
>
>
> {code:bash|title=Repro. Tab 1: Start WebImageViewer}
> $ hdfs oiv -i fsimage_0000000000011467437
> 2019-01-28 23:30:20,536 INFO offlineImageViewer.FSImageHandler: Loading 6 
> strings
> 2019-01-28 23:30:20,545 INFO offlineImageViewer.FSImageHandler: Loading 
> 2031774 inodes.
> 2019-01-28 23:30:22,602 INFO offlineImageViewer.FSImageHandler: Loading inode 
> references
> 2019-01-28 23:30:22,610 INFO offlineImageViewer.FSImageHandler: Loaded 0 
> inode references
> 2019-01-28 23:30:22,610 INFO offlineImageViewer.FSImageHandler: Loading inode 
> directory section
> 2019-01-28 23:30:22,739 INFO offlineImageViewer.FSImageHandler: Loaded 31758 
> directories
> 2019-01-28 23:30:22,800 INFO offlineImageViewer.WebImageViewer: 
> WebImageViewer started. Listening on /127.0.0.1:5978. Press Ctrl+C to stop 
> the viewer.
> {code}
> {code:bash|title=Repro. Tab 2: curl /webhdfs/v1 without params}
> # NPE without op (null/empty op)
> $ curl http://127.0.0.1:5978/webhdfs/v1/
> {"RemoteException":{"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException","message":null}}
> # Okay with op
> $ curl http://127.0.0.1:5978/webhdfs/v1/\?op\=LISTSTATUS
> {"FileStatuses":{"FileStatus":[
> {"owner":"hdfs","replication":0,"pathSuffix":"tmp","modificationTime":1534356863827,"childrenNum":3,"length":0,"permission":"1777","type":"DIRECTORY","blockSize":0,"accessTime":0,"group":"supergroup","fileId":16388},{"owner":"hdfs","replication":0,"pathSuffix":"user","modificationTime":1534273588466,"childrenNum":3,"length":0,"permission":"755","type":"DIRECTORY","blockSize":0,"accessTime":0,"group":"supergroup","fileId":16386}
> ]}}
> {code}



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