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https://issues.apache.org/jira/browse/HADOOP-13203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15342191#comment-15342191
 ] 

Hadoop QA commented on HADOOP-13203:
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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 
29s{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 3 new or modified test 
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
42s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  6m 
40s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  6m  
2s{color} | {color:green} branch-2 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  6m 
40s{color} | {color:green} branch-2 passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
22s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
18s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
30s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
14s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
59s{color} | {color:green} branch-2 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
11s{color} | {color:green} branch-2 passed with JDK v1.7.0_101 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
13s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
 2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  5m 
53s{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  5m 
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  6m 
31s{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  6m 
31s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  1m 
21s{color} | {color:red} root: The patch generated 33 new + 43 unchanged - 9 
fixed = 76 total (was 52) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
20s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
30s{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 50 line(s) that end in whitespace. Use 
git apply --whitespace=fix. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
47s{color} | {color:red} hadoop-tools/hadoop-aws generated 2 new + 0 unchanged 
- 0 fixed = 2 total (was 0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  
1s{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
11s{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  8m 
26s{color} | {color:green} hadoop-common in the patch passed with JDK 
v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
16s{color} | {color:green} hadoop-aws in the patch passed with JDK v1.7.0_101. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
22s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 68m 21s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-tools/hadoop-aws |
|  |  Inconsistent synchronization of 
org.apache.hadoop.fs.s3a.S3AInputStream.contentRangeFinish; locked 75% of time  
Unsynchronized access at S3AInputStream.java:75% of time  Unsynchronized access 
at S3AInputStream.java:[line 514] |
|  |  Inconsistent synchronization of 
org.apache.hadoop.fs.s3a.S3AInputStream.pos; locked 87% of time  Unsynchronized 
access at S3AInputStream.java:87% of time  Unsynchronized access at 
S3AInputStream.java:[line 497] |
| JDK v1.8.0_91 Failed junit tests | hadoop.metrics2.impl.TestGangliaMetrics |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:d1c475d |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12812220/HADOOP-13203-branch-2-008.patch
 |
| JIRA Issue | HADOOP-13203 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux 58e81c49cfc3 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 | branch-2 / 65b4f26 |
| Default Java | 1.7.0_101 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_91 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_101 |
| findbugs | v3.0.0 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9845/artifact/patchprocess/diff-checkstyle-root.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9845/artifact/patchprocess/whitespace-eol.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9845/artifact/patchprocess/new-findbugs-hadoop-tools_hadoop-aws.html
 |
| JDK v1.7.0_101  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9845/testReport/ |
| modules | C: hadoop-common-project/hadoop-common hadoop-tools/hadoop-aws U: . 
|
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9845/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> S3a: Consider reducing the number of connection aborts by setting correct 
> length in s3 request
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-13203
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13203
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.8.0
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>         Attachments: HADOOP-13203-branch-2-001.patch, 
> HADOOP-13203-branch-2-002.patch, HADOOP-13203-branch-2-003.patch, 
> HADOOP-13203-branch-2-004.patch, HADOOP-13203-branch-2-005.patch, 
> HADOOP-13203-branch-2-006.patch, HADOOP-13203-branch-2-007.patch, 
> HADOOP-13203-branch-2-008.patch, stream_stats.tar.gz
>
>
> Currently file's "contentLength" is set as the "requestedStreamLen", when 
> invoking S3AInputStream::reopen().  As a part of lazySeek(), sometimes the 
> stream had to be closed and reopened. But lots of times the stream was closed 
> with abort() causing the internal http connection to be unusable. This incurs 
> lots of connection establishment cost in some jobs.  It would be good to set 
> the correct value for the stream length to avoid connection aborts. 
> I will post the patch once aws tests passes in my machine.



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