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Posted to issues@hive.apache.org by "Hive QA (JIRA)" <ji...@apache.org> on 2019/04/19 15:01:00 UTC

[jira] [Commented] (HIVE-21635) Break up DDLTask - extract Workload Management related operations

    [ https://issues.apache.org/jira/browse/HIVE-21635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16821976#comment-16821976 ] 

Hive QA commented on HIVE-21635:
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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}  8m 26s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  7s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 44s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  4m  9s{color} | {color:blue} ql in master has 2256 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 30s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  7s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  7s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 43s{color} | {color:red} ql: The patch generated 5 new + 291 unchanged - 22 fixed = 296 total (was 313) {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 17s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 59s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 14s{color} | {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 24m 43s{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-16998/dev-support/hive-personality.sh |
| git revision | master / bb71ce5 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-16998/yetus/diff-checkstyle-ql.txt |
| modules | C: ql U: ql |
| Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-16998/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Break up DDLTask - extract Workload Management related operations
> -----------------------------------------------------------------
>
>                 Key: HIVE-21635
>                 URL: https://issues.apache.org/jira/browse/HIVE-21635
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Hive
>    Affects Versions: 3.1.1
>            Reporter: Miklos Gergely
>            Assignee: Miklos Gergely
>            Priority: Major
>              Labels: refactor-ddl
>             Fix For: 4.0.0
>
>         Attachments: HIVE-21635.01.patch
>
>
> DDLTask is a huge class, more than 5000 lines long. The related DDLWork is also a huge class, which has a field for each DDL operation it supports. The goal is to refactor these in order to have everything cut into more handleable classes under the package  org.apache.hadoop.hive.ql.exec.ddl:
>  * have a separate class for each operation
>  * have a package for each operation group (database ddl, table ddl, etc), so the amount of classes under a package is more manageable
>  * make all the requests (DDLDesc subclasses) immutable
>  * DDLTask should be agnostic to the actual operations
>  * right now let's ignore the issue of having some operations handled by DDLTask which are not actual DDL operations (lock, unlock, desc...)
> In the interim time when there are two DDLTask and DDLWork classes in the code base the new ones in the new package are called DDLTask2 and DDLWork2 thus avoiding the usage of fully qualified class names where both the old and the new classes are in use.
> Step #6: extract all the workload management related operations from the old DDLTask, and move them under the new package.



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