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From "genericqa (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15583) S3Guard to get AWS Credential chain from S3AFS; credentials closed() on shutdown
Date Mon, 09 Jul 2018 22:06:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16537674#comment-16537674
] 

genericqa commented on HADOOP-15583:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 23s{color} | {color:blue}
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|| || || || {color:brown} Prechecks {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:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 28m 48s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 28s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 14s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 32s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 12m 10s{color}
| {color:green} branch has no errors when building and testing our client artifacts. {color}
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| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 38s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 22s{color} |
{color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 31s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 26s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 26s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 10s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 28s{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} shadedclient {color} | {color:green} 12m 36s{color}
| {color:green} patch has no errors when building and testing our client artifacts. {color}
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| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 49s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 20s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  4m 26s{color} | {color:green}
hadoop-aws in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 30s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 64m 21s{color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:abb62dd |
| JIRA Issue | HADOOP-15583 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12930900/HADOOP-15583-002.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  shadedclient
 findbugs  checkstyle  |
| uname | Linux 0ade4850939b 3.13.0-153-generic #203-Ubuntu SMP Thu Jun 14 08:52:28 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 9bd5bef |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_171 |
| findbugs | v3.1.0-RC1 |
|  Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/14868/testReport/ |
| Max. process+thread count | 353 (vs. ulimit of 10000) |
| modules | C: hadoop-tools/hadoop-aws U: hadoop-tools/hadoop-aws |
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/14868/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> S3Guard to get AWS Credential chain from S3AFS; credentials closed() on shutdown
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-15583
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15583
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.1.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>         Attachments: HADOOP-15583-001.patch, HADOOP-15583-002.patch
>
>
> S3Guard builds its DDB auth chain itself, which stops it having to worry about being
created standalone vs part of an S3AFS, but it means its authenticators are in a separate
chain.
> When you are using short-lived assumed roles or other session credentials updated in
the S3A FS authentication chain, you need that same set of credentials picked up by DDB. Otherwise,
at best you are doubling load, at worse: the DDB connector may not get refreshed credentials.
> Proposed: {{DynamoDBClientFactory.createDynamoDBClient()}} to take an optional ref to
aws credentials. If set: don't create a new set. 
> There's one little complication here: our {{AWSCredentialProviderList}} list is autocloseable;
it's close() will go through all children and close them. Apparently the AWS S3 client (And
hopefully the DDB client) will close this when they are closed themselves. If DDB  has the
same set of credentials as the FS, then there could be trouble if they are closed in one place
when the other still wants to use them.
> Solution; have a use count the uses of the credentials list, starting at one: every close()
call decrements, and when this hits zero the cleanup is kicked off



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