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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8307) Spurious DNS Queries from hdfs shell
Date Wed, 09 Nov 2016 06:09:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15649920#comment-15649920
] 

Hadoop QA commented on HDFS-8307:
---------------------------------

| (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 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:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  0s{color} | {color:red}
The patch doesn't appear to include any new or modified tests. Please justify why no new tests
are needed for this patch. Also please list what manual steps were performed to verify this
patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  6m 24s{color}
| {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 12s{color} |
{color:green} branch-2.7 passed with JDK v1.8.0_111 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  4s{color} |
{color:green} branch-2.7 passed with JDK v1.7.0_111 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 29s{color}
| {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  4s{color} |
{color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 15s{color}
| {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m  3s{color} |
{color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  7s{color} |
{color:green} branch-2.7 passed with JDK v1.8.0_111 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 45s{color} |
{color:green} branch-2.7 passed with JDK v1.7.0_111 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 53s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  1s{color} |
{color:green} the patch passed with JDK v1.8.0_111 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  1s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  5s{color} |
{color:green} the patch passed with JDK v1.7.0_111 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  5s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 24s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 56s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 13s{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 1317 line(s) that end in whitespace. Use git apply --whitespace=fix <<patch_file>>.
Refer https://git-scm.com/docs/git-apply {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m 30s{color} | {color:red}
The patch 76 line(s) with tabs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m  7s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  1s{color} |
{color:green} the patch passed with JDK v1.8.0_111 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 46s{color} |
{color:green} the patch passed with JDK v1.7.0_111 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 56m  3s{color} | {color:red}
hadoop-hdfs in the patch failed with JDK v1.7.0_111. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 22s{color} | {color:red}
The patch generated 3 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}141m 27s{color} | {color:black}
{color} |
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|| Reason || Tests ||
| JDK v1.8.0_111 Failed junit tests | hadoop.hdfs.server.datanode.TestBlockScanner |
|   | hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots |
|   | hadoop.hdfs.server.balancer.TestBalancer |
|   | hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes |
| JDK v1.7.0_111 Failed junit tests | hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots
|
|   | hadoop.hdfs.server.namenode.TestFileTruncate |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:c420dfe |
| JIRA Issue | HDFS-8307 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12838118/HDFS-8307-branch-2.7.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux ba46816155d1 3.13.0-96-generic #143-Ubuntu SMP Mon Aug 29 20:15:20 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | branch-2.7 / d762730 |
| Default Java | 1.7.0_111 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_111 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_111
|
| findbugs | v3.0.0 |
| whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/17482/artifact/patchprocess/whitespace-eol.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/17482/artifact/patchprocess/whitespace-tabs.txt
|
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/17482/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_111.txt
|
| JDK v1.7.0_111  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/17482/testReport/
|
| asflicense | https://builds.apache.org/job/PreCommit-HDFS-Build/17482/artifact/patchprocess/patch-asflicense-problems.txt
|
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/17482/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Spurious DNS Queries from hdfs shell
> ------------------------------------
>
>                 Key: HDFS-8307
>                 URL: https://issues.apache.org/jira/browse/HDFS-8307
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.7.1
>            Reporter: Anu Engineer
>            Assignee: Andres Perez
>            Priority: Trivial
>              Labels: ha
>             Fix For: 2.7.4
>
>         Attachments: HDFS-8307-branch-2.7.patch
>
>
> With HA configured the hdfs shell (org.apache.hadoop.fs.FsShell) seems to issue a DNS
query for the cluster Name. if  fs.defaultFS is set to hdfs://mycluster, then the shell seems
to issue a DNS query for mycluster.FQDN or mycluster.
> since mycluster not a machine name  DNS query always fails with 
> "DNS 85 Standard query response 0x2aeb No such name"
> Repro Steps:
> # Setup a HA cluster 
> # Log on to any node
> # Run wireshark monitoring port 53 - "sudo tshark 'port 53'"
> # Run "sudo -u hdfs hdfs dfs -ls /" 
> # You should be able to see DNS queries to mycluster.FQDN in wireshark



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