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Posted to issues@hive.apache.org by "Hive QA (Jira)" <ji...@apache.org> on 2020/02/29 13:22:00 UTC
[jira] [Commented] (HIVE-21439) Provide an option to reduce lookup
overhead for bucketed tables
[ https://issues.apache.org/jira/browse/HIVE-21439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17048302#comment-17048302 ]
Hive QA commented on HIVE-21439:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {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:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 10m 13s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 4s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 43s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m 10s{color} | {color:blue} ql in master has 1531 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 58s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 32s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 9s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 49s{color} | {color:red} ql: The patch generated 2 new + 12 unchanged - 0 fixed = 14 total (was 12) {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} 4m 16s{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 {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 16s{color} | {color:red} The patch generated 2 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 26m 44s{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 3.16.43-2+deb8u5 (2017-09-19) x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-20890/dev-support/hive-personality.sh |
| git revision | master / 2a7344a |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-20890/yetus/diff-checkstyle-ql.txt |
| asflicense | http://104.198.109.242/logs//PreCommit-HIVE-Build-20890/yetus/patch-asflicense-problems.txt |
| modules | C: ql U: ql |
| Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-20890/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Provide an option to reduce lookup overhead for bucketed tables
> ---------------------------------------------------------------
>
> Key: HIVE-21439
> URL: https://issues.apache.org/jira/browse/HIVE-21439
> Project: Hive
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Trivial
> Attachments: HIVE-21439.1.patch, HIVE-21439.2.patch, HIVE-21439.3.patch
>
>
> If a table is bucketed, `OpTraitsRulesProcFactory::TableScanRule` ends up verifying if the partitions have got the same number of files as the number of buckets in table. https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/optimizer/metainfo/annotation/OpTraitsRulesProcFactory.java#L185
> In large tables, this turns out to be very time consuming (100s of seconds) operation. It would be good to have an option to by pass this depending on need basis.
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