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https://issues.apache.org/jira/browse/HADOOP-13028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15265911#comment-15265911
 ] 

Hadoop QA commented on HADOOP-13028:
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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} 10m 26s 
{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 4 new or modified test 
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 4m 44s 
{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m 
48s {color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 12s 
{color} | {color:green} branch-2 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 5s 
{color} | {color:green} branch-2 passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 
8s {color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 16s 
{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 1m 
21s {color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 
17s {color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 7s 
{color} | {color:green} branch-2 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 17s 
{color} | {color:green} branch-2 passed with JDK v1.7.0_95 {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} 0m 
54s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 7s 
{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 5m 7s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 2s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m 2s 
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m 2s 
{color} | {color:red} root: The patch generated 15 new + 49 unchanged - 40 
fixed = 64 total (was 89) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 13s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
27s {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:green}+1{color} | {color:green} xml {color} | {color:green} 0m 1s 
{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 
31s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 12s 
{color} | {color:red} hadoop-aws in the patch failed with JDK v1.8.0_91. 
{color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 14s 
{color} | {color:red} hadoop-tools_hadoop-aws-jdk1.7.0_95 with JDK v1.7.0_95 
generated 4 new + 0 unchanged - 0 fixed = 4 total (was 0) {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 7m 46s 
{color} | {color:green} hadoop-common in the patch passed with JDK v1.8.0_91. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 12s 
{color} | {color:green} hadoop-aws in the patch passed with JDK v1.8.0_91. 
{color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 7m 28s {color} 
| {color:red} hadoop-common in the patch failed with JDK v1.7.0_95. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 14s 
{color} | {color:green} hadoop-aws in the patch passed with JDK v1.7.0_95. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
23s {color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 79m 7s {color} | 
{color:black} {color} |
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|| Reason || Tests ||
| JDK v1.7.0_95 Failed junit tests | hadoop.net.TestDNS |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:babe025 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12801667/HADOOP-13028-branch-2-008.patch
 |
| JIRA Issue | HADOOP-13028 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  xml  |
| uname | Linux 36c791506c9f 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 / 162f5b8 |
| Default Java | 1.7.0_95 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_91 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 |
| findbugs | v3.0.0 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9244/artifact/patchprocess/diff-checkstyle-root.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9244/artifact/patchprocess/whitespace-eol.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9244/artifact/patchprocess/patch-javadoc-hadoop-tools_hadoop-aws-jdk1.8.0_91.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9244/artifact/patchprocess/diff-javadoc-javadoc-hadoop-tools_hadoop-aws-jdk1.7.0_95.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9244/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_95.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-HADOOP-Build/9244/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_95.txt
 |
| JDK v1.7.0_95  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9244/testReport/ |
| modules | C: hadoop-common-project/hadoop-common hadoop-tools/hadoop-aws U: . 
|
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/9244/console |
| Powered by | Apache Yetus 0.3.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> add low level counter metrics for S3A; use in read performance tests
> --------------------------------------------------------------------
>
>                 Key: HADOOP-13028
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13028
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3, metrics
>    Affects Versions: 2.8.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>         Attachments: HADOOP-13028-001.patch, HADOOP-13028-002.patch, 
> HADOOP-13028-004.patch, HADOOP-13028-005.patch, HADOOP-13028-006.patch, 
> HADOOP-13028-007.patch, HADOOP-13028-008.patch, 
> HADOOP-13028-branch-2-008.patch, 
> org.apache.hadoop.fs.s3a.scale.TestS3AInputStreamPerformance-output.txt, 
> org.apache.hadoop.fs.s3a.scale.TestS3AInputStreamPerformance-output.txt
>
>
> against S3 (and other object stores), opening connections can be expensive, 
> closing connections may be expensive (a sign of a regression). 
> S3A FS and individual input streams should have counters of the # of 
> open/close/failure+reconnect operations, timers of how long things take. This 
> can be used downstream to measure efficiency of the code (how often 
> connections are being made), connection reliability, etc.



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