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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11575) Supporting HDFS NFS gateway with Federated HDFS
Date Wed, 24 May 2017 14:01:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16022931#comment-16022931
] 

Hadoop QA commented on HDFS-11575:
----------------------------------

| (/) *{color:green}+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 7 new or modified test files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  1m 32s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 15m 29s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 14m 32s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 57s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 48s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 39s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m  1s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 40s{color} |
{color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 14s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 28s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 12m 53s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 12m 53s{color} | {color:green}
the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  2m  8s{color}
| {color:orange} root: The patch generated 2 new + 170 unchanged - 29 fixed = 172 total (was
199) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 49s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 41s{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} findbugs {color} | {color:green}  1m 22s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 41s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 33s{color} | {color:green}
hadoop-nfs in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m  3s{color} | {color:green}
hadoop-hdfs-nfs in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 33s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 61m 12s{color} | {color:black}
{color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:14b5c93 |
| JIRA Issue | HDFS-11575 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12869643/HDFS-11575.005.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux fa5b63c1afe0 3.13.0-106-generic #153-Ubuntu SMP Tue Dec 6 15:44:32 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / a62be38 |
| Default Java | 1.8.0_131 |
| findbugs | v3.1.0-RC1 |
| checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/19583/artifact/patchprocess/diff-checkstyle-root.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/19583/testReport/ |
| modules | C: hadoop-common-project/hadoop-nfs hadoop-hdfs-project/hadoop-hdfs-nfs U: . |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/19583/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Supporting HDFS NFS gateway with Federated HDFS
> -----------------------------------------------
>
>                 Key: HDFS-11575
>                 URL: https://issues.apache.org/jira/browse/HDFS-11575
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: nfs
>            Reporter: Mukul Kumar Singh
>            Assignee: Mukul Kumar Singh
>         Attachments: HDFS-11575.001.patch, HDFS-11575.002.patch, HDFS-11575.003.patch,
HDFS-11575.004.patch, HDFS-11575.005.patch, SupportingNFSwithFederatedHDFS.pdf
>
>
> Currently HDFS NFS gateway only supports HDFS as the underlying filesystem.
> Federated HDFS with ViewFS helps in improving the scalability of the name nodes. However
NFS is not supported with ViewFS.
> With this change, ViewFS using HDFS as the underlying filesystem can be exported using
NFS. ViewFS mount table will be used to determine the exports which needs to be supported.
> Some important points
> 1) This patch only supports HDFS as the underlying filesystem for ViewFS.
> 2) This patch add support to add more than one export point in the NFS gateway
> 3) Root filesystem of the ViewFS will not be mountable for NFS gateway with ViewFS,
>    however this will not be the case for NFS gateway with HDFS
> 4) A filehandle now apart from the field will also contain an identifier to identify
the name node, this will be used to map to correct name node for file operations.
> Please find the attached pdf document which helps in explaining the design and the solution.
>  



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