[ 
https://issues.apache.org/jira/browse/HIVE-18910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16426595#comment-16426595
 ] 

Hive QA commented on HIVE-18910:
--------------------------------

| (x) *{color:red}-1 overall{color}* |
\\
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  
1s{color} | {color:blue} Findbugs executables are not available. {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:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
40s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  6m 
45s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  3m 
51s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
32s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  3m 
42s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  
9s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 
20s{color} | {color:red} streaming in the patch failed. {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 
59s{color} | {color:red} ql in the patch failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  3m 
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  3m 
58s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
15s{color} | {color:red} storage-api: The patch generated 3 new + 97 unchanged 
- 3 fixed = 100 total (was 100) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
22s{color} | {color:red} serde: The patch generated 150 new + 214 unchanged - 3 
fixed = 364 total (was 217) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
14s{color} | {color:red} hcatalog/streaming: The patch generated 1 new + 33 
unchanged - 0 fixed = 34 total (was 33) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  1m  
1s{color} | {color:red} ql: The patch generated 26 new + 1267 unchanged - 3 
fixed = 1293 total (was 1270) {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
1s{color} | {color:red} The patch 248 line(s) with tabs. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  3m 
31s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
17s{color} | {color:red} The patch generated 51 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 36m 14s{color} | 
{color:black} {color} |
\\
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|| Subsystem || Report/Notes ||
| Optional Tests |  asflicense  javac  javadoc  findbugs  checkstyle  compile  |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian 
3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/data/hiveptest/working/yetus_PreCommit-HIVE-Build-10008/dev-support/hive-personality.sh
 |
| git revision | master / dc5a943 |
| Default Java | 1.8.0_111 |
| mvninstall | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus/patch-mvninstall-hcatalog_streaming.txt
 |
| mvninstall | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus/patch-mvninstall-ql.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus/diff-checkstyle-storage-api.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus/diff-checkstyle-serde.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus/diff-checkstyle-hcatalog_streaming.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus/diff-checkstyle-ql.txt
 |
| whitespace | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus/whitespace-tabs.txt
 |
| asflicense | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus/patch-asflicense-problems.txt
 |
| modules | C: storage-api serde hbase-handler hcatalog/streaming itests 
itests/hive-blobstore ql standalone-metastore U: . |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-10008/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Migrate to Murmur hash for shuffle and bucketing
> ------------------------------------------------
>
>                 Key: HIVE-18910
>                 URL: https://issues.apache.org/jira/browse/HIVE-18910
>             Project: Hive
>          Issue Type: Task
>            Reporter: Deepak Jaiswal
>            Assignee: Deepak Jaiswal
>            Priority: Major
>         Attachments: HIVE-18910.1.patch, HIVE-18910.10.patch, 
> HIVE-18910.11.patch, HIVE-18910.12.patch, HIVE-18910.13.patch, 
> HIVE-18910.14.patch, HIVE-18910.15.patch, HIVE-18910.16.patch, 
> HIVE-18910.17.patch, HIVE-18910.18.patch, HIVE-18910.19.patch, 
> HIVE-18910.2.patch, HIVE-18910.20.patch, HIVE-18910.21.patch, 
> HIVE-18910.22.patch, HIVE-18910.23.patch, HIVE-18910.3.patch, 
> HIVE-18910.4.patch, HIVE-18910.5.patch, HIVE-18910.6.patch, 
> HIVE-18910.7.patch, HIVE-18910.8.patch, HIVE-18910.9.patch
>
>
> Hive uses JAVA hash which is not as good as murmur for better distribution 
> and efficiency in bucketing a table.
> Migrate to murmur hash but still keep backward compatibility for existing 
> users so that they dont have to reload the existing tables.



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