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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12946) Add a tool to check rack configuration against EC policies
Date Tue, 27 Nov 2018 19:02:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16700874#comment-16700874
] 

Hadoop QA commented on HDFS-12946:
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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 14s{color} | {color:blue}
Docker mode activated. {color} |
|| || || || {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:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 20s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 20m  2s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 54s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m  8s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 40s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 14m 30s{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}  2m 50s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 20s{color} |
{color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 10s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 25s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 52s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  2m 52s{color} | {color:green}
the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  1m  0s{color}
| {color:orange} hadoop-hdfs-project: The patch generated 1 new + 362 unchanged - 0 fixed
= 363 total (was 362) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 25s{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 1 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} shadedclient {color} | {color:green} 12m  5s{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}  2m 55s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 11s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 77m 17s{color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 16m 12s{color} | {color:green}
hadoop-hdfs-rbf in the patch passed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 28s{color} | {color:red}
The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}160m 55s{color} | {color:black}
{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.web.TestWebHdfsTimeouts |
|   | hadoop.hdfs.server.datanode.TestDataNodeRollingUpgrade |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f |
| JIRA Issue | HDFS-12946 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12949712/HDFS-12946.10.patch
|
| Optional Tests |  dupname  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit
 shadedclient  findbugs  checkstyle  |
| uname | Linux 683a5dd6d93a 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 96c104d |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.0-RC1 |
| checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/25644/artifact/out/diff-checkstyle-hadoop-hdfs-project.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/25644/artifact/out/whitespace-eol.txt
|
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/25644/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/25644/testReport/ |
| asflicense | https://builds.apache.org/job/PreCommit-HDFS-Build/25644/artifact/out/patch-asflicense-problems.txt
|
| Max. process+thread count | 4901 (vs. ulimit of 10000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs hadoop-hdfs-project/hadoop-hdfs-rbf U: hadoop-hdfs-project
|
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/25644/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> Add a tool to check rack configuration against EC policies
> ----------------------------------------------------------
>
>                 Key: HDFS-12946
>                 URL: https://issues.apache.org/jira/browse/HDFS-12946
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: erasure-coding
>            Reporter: Xiao Chen
>            Assignee: Kitti Nanasi
>            Priority: Major
>         Attachments: HDFS-12946.01.patch, HDFS-12946.02.patch, HDFS-12946.03.patch, HDFS-12946.04.fsck.patch,
HDFS-12946.05.patch, HDFS-12946.06.patch, HDFS-12946.07.patch, HDFS-12946.08.patch, HDFS-12946.09.patch,
HDFS-12946.10.patch
>
>
> From testing we have seen setups with problematic racks / datanodes that would not suffice
basic EC usages. These are usually found out only after the tests failed.
> We should provide a way to check this beforehand.
> Some scenarios:
> - not enough datanodes compared to EC policy's highest data+parity number
> - not enough racks to satisfy BPPRackFaultTolerant
> - highly uneven racks to satisfy BPPRackFaultTolerant
> - highly uneven racks (so that BPP's considerLoad logic may exclude some busy nodes on
the rack, resulting in #2)



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