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https://issues.apache.org/jira/browse/HADOOP-13727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15583931#comment-15583931
]
Hadoop QA commented on HADOOP-13727:
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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
18s{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
55s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m
26s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m
42s{color} | {color:green} branch-2 passed with JDK v1.8.0_101 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m
15s{color} | {color:green} branch-2 passed with JDK v1.7.0_111 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
35s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
33s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
33s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
32s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
8s{color} | {color:green} branch-2 passed with JDK v1.8.0_101 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
23s{color} | {color:green} branch-2 passed with JDK v1.7.0_111 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
17s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m
27s{color} | {color:green} the patch passed with JDK v1.8.0_101 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m
22s{color} | {color:green} the patch passed with JDK v1.7.0_111 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 7m
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
35s{color} | {color:green} root: The patch generated 0 new + 0 unchanged - 3
fixed = 0 total (was 3) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
37s{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 47 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} 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
48s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
8s{color} | {color:green} the patch passed with JDK v1.8.0_101 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
23s{color} | {color:green} the patch passed with JDK v1.7.0_111 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m
27s{color} | {color:green} hadoop-common in the patch passed with JDK
v1.7.0_111. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m
29s{color} | {color:green} hadoop-aws in the patch passed with JDK v1.7.0_111.
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
29s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 99m 33s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:b59b8b7 |
| JIRA Issue | HADOOP-13727 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12833826/HADOOP-13727-branch-2.001.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit xml findbugs checkstyle |
| uname | Linux 04cf4a9ae651 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 / e02c756 |
| Default Java | 1.7.0_111 |
| Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_101
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_111 |
| findbugs | v3.0.0 |
| whitespace |
https://builds.apache.org/job/PreCommit-HADOOP-Build/10816/artifact/patchprocess/whitespace-eol.txt
|
| JDK v1.7.0_111 Test Results |
https://builds.apache.org/job/PreCommit-HADOOP-Build/10816/testReport/ |
| modules | C: hadoop-common-project/hadoop-common hadoop-tools/hadoop-aws U: .
|
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/10816/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> S3A: Reduce high number of connections to EC2 Instance Metadata Service
> caused by InstanceProfileCredentialsProvider.
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-13727
> URL: https://issues.apache.org/jira/browse/HADOOP-13727
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Reporter: Rajesh Balamohan
> Assignee: Chris Nauroth
> Priority: Minor
> Attachments: HADOOP-13727-branch-2.001.patch
>
>
> When running in an EC2 VM, S3A can make use of
> {{InstanceProfileCredentialsProvider}} from the AWS SDK to obtain credentials
> from the EC2 Instance Metadata Service. We have observed that for a highly
> multi-threaded application, this may generate a high number of calls to the
> Instance Metadata Service. The service may throttle the client by replying
> with an HTTP 429 response or forcibly closing connections. We can greatly
> reduce the number of calls to the service by enforcing that all threads use a
> single shared instance of {{InstanceProfileCredentialsProvider}}.
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