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https://issues.apache.org/jira/browse/MAPREDUCE-7193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17193295#comment-17193295
 ] 

Hadoop QA commented on MAPREDUCE-7193:
--------------------------------------

| (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 
59s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  3m 
23s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 27m 
17s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 
26s{color} | {color:green} trunk passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 
22s{color} | {color:green} trunk passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
44s{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} 
16m  4s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
47s{color} | {color:green} trunk passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
44s{color} | {color:green} trunk passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  0m 
48s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
59s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
26s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
 7s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 
22s{color} | {color:green} the patch passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  2m 
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m  
0s{color} | {color:green} the patch passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  2m  
0s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 36s{color} | {color:orange} 
hadoop-mapreduce-project/hadoop-mapreduce-client: The patch generated 4 new + 
56 unchanged - 20 fixed = 60 total (was 76) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
0s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
0s{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git 
apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply 
{color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
15m 27s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
38s{color} | {color:green} the patch passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
26s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  7m 
35s{color} | {color:green} hadoop-mapreduce-client-core in the patch passed. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}130m 
14s{color} | {color:green} hadoop-mapreduce-client-jobclient in the patch 
passed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
46s{color} | {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}223m 35s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/12/artifact/out/Dockerfile
 |
| JIRA Issue | MAPREDUCE-7193 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12962534/MAPREDUCE-7193.2.patch
 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux ab10c724a5c6 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 
16:55:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / e5fe3262702 |
| Default Java | Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
| Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
| checkstyle | 
https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/12/artifact/out/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client.txt
 |
| whitespace | 
https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/12/artifact/out/whitespace-eol.txt
 |
|  Test Results | 
https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/12/testReport/ |
| asflicense | 
https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/12/artifact/out/patch-asflicense-problems.txt
 |
| Max. process+thread count | 1636 (vs. ulimit of 5500) |
| modules | C: 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient
 U: hadoop-mapreduce-project/hadoop-mapreduce-client |
| Console output | 
https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/12/console |
| versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
| Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |


This message was automatically generated.



> Review of CombineFile Code
> --------------------------
>
>                 Key: MAPREDUCE-7193
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7193
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 3.2.0
>            Reporter: David Mollitor
>            Assignee: David Mollitor
>            Priority: Minor
>         Attachments: MAPREDUCE-7193.1.patch, MAPREDUCE-7193.2.patch
>
>
> I am looking to experiment with combing files a bit, but first started doing 
> some maintenance work:
>  * Use Java 8 facilities
>  * General clean up
>  * Remove use of checked IOException ("Signals that an I/O exception of some 
> sort has occurred.") for validation errors
>  * Fix checkstyles
> [https://docs.oracle.com/javase/8/docs/api/index.html?java/io/IOException.html]



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