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https://issues.apache.org/jira/browse/HADOOP-13876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15843787#comment-15843787
 ] 

Hadoop QA commented on HADOOP-13876:
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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 
16s{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 5 new or modified test 
files. {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  6m 
52s{color} | {color:red} root in HADOOP-13345 failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
49s{color} | {color:green} HADOOP-13345 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
15s{color} | {color:green} HADOOP-13345 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
36s{color} | {color:green} HADOOP-13345 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  2m 
13s{color} | {color:green} HADOOP-13345 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
28s{color} | {color:green} HADOOP-13345 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
54s{color} | {color:green} HADOOP-13345 passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
 4s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
36s{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} xml {color} | {color:green}  0m  
4s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
56s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
42s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  1m 49s{color} 
| {color:red} hadoop-aws in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
55s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 26m  3s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.fs.s3a.s3guard.TestDynamoDBMetadataStore |
|   | hadoop.fs.s3a.s3guard.TestPathMetadataDynamoDBTranslation |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HADOOP-13876 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12849792/HADOOP-13876-HADOOP-13345.002.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  xml  |
| uname | Linux d3662b8776fd 3.13.0-105-generic #152-Ubuntu SMP Fri Dec 2 
15:37:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | HADOOP-13345 / b22c0d6 |
| Default Java | 1.8.0_121 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11525/artifact/patchprocess/branch-mvninstall-root.txt
 |
| findbugs | v3.0.0 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11525/artifact/patchprocess/patch-unit-hadoop-tools_hadoop-aws.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11525/testReport/ |
| modules | C: hadoop-tools/hadoop-aws U: hadoop-tools/hadoop-aws |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11525/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> S3Guard: better support for multi-bucket access
> -----------------------------------------------
>
>                 Key: HADOOP-13876
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13876
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: HADOOP-13345
>            Reporter: Aaron Fabbri
>            Assignee: Aaron Fabbri
>         Attachments: HADOOP-13876-HADOOP-13345.000.patch, 
> HADOOP-13876-HADOOP-13345.001.patch, HADOOP-13876-HADOOP-13345.002.patch
>
>
> HADOOP-13449 adds support for DynamoDBMetadataStore.
> The code currently supports two options for choosing DynamoDB table names:
> 1. Use name of each s3 bucket and auto-create a DynamoDB table for each.
> 2. Configure a table name in the {{fs.s3a.s3guard.ddb.table}} parameter.
> However, if a user sets {{fs.s3a.s3guard.ddb.table}} and accesses multiple 
> buckets, DynamoDBMetadataStore does not properly differentiate between paths 
> belonging to different buckets.  For example, it would treat 
> s3a://bucket-a/path1 as the same as s3a://bucket-b/path1.
> Goals for this JIRA:
> - Allow for a "one DynamoDB table per cluster" configuration.  If a user 
> accesess multiple buckets with that single table, it should work correctly.  
> - Explain which credentials are used for DynamoDB.  Currently each 
> S3AFileSystem has its own DynamoDBMetadataStore, which uses the credentials 
> from the S3A fs.   We at least need to document this behavior.
> - Document any other limitations etc. in the s3guard.md site doc.



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