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https://issues.apache.org/jira/browse/HIVE-17896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16541232#comment-16541232
]
Hive QA commented on HIVE-17896:
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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:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m
34s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m
48s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
48s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
19s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
34s{color} | {color:blue} common in master has 64 extant Findbugs warnings.
{color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
43s{color} | {color:blue} serde in master has 194 extant Findbugs warnings.
{color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m
23s{color} | {color:blue} ql in master has 2287 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
30s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
25s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
54s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
47s{color} | {color:red} ql: The patch generated 35 new + 425 unchanged - 0
fixed = 460 total (was 425) {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m
5s{color} | {color:red} serde generated 1 new + 194 unchanged - 0 fixed = 195
total (was 194) {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 6m
18s{color} | {color:red} ql generated 8 new + 2287 unchanged - 0 fixed = 2295
total (was 2287) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m
18s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
16s{color} | {color:green} The patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black} 36m 37s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:serde |
| |
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.compare(Object[],
ObjectInspector[], Object[], ObjectInspector[], boolean[]) negates the return
value of
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.compare(Object,
ObjectInspector, Object, ObjectInspector) At
ObjectInspectorUtils.java:negates the return value of
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.compare(Object,
ObjectInspector, Object, ObjectInspector) At ObjectInspectorUtils.java:[line
956] |
| FindBugs | module:ql |
| | new
org.apache.hadoop.hive.ql.exec.TopNKeyOperator$KeyWrapperComparator(ObjectInspector[],
ObjectInspector[], boolean[]) may expose internal representation by storing an
externally mutable object into
TopNKeyOperator$KeyWrapperComparator.columnSortOrderIsDesc At
TopNKeyOperator.java:expose internal representation by storing an externally
mutable object into TopNKeyOperator$KeyWrapperComparator.columnSortOrderIsDesc
At TopNKeyOperator.java:[line 71] |
| | new
org.apache.hadoop.hive.ql.exec.TopNKeyOperator$KeyWrapperComparator(ObjectInspector[],
ObjectInspector[], boolean[]) may expose internal representation by storing an
externally mutable object into
TopNKeyOperator$KeyWrapperComparator.objectInspectors1 At
TopNKeyOperator.java:expose internal representation by storing an externally
mutable object into TopNKeyOperator$KeyWrapperComparator.objectInspectors1 At
TopNKeyOperator.java:[line 69] |
| | new
org.apache.hadoop.hive.ql.exec.TopNKeyOperator$KeyWrapperComparator(ObjectInspector[],
ObjectInspector[], boolean[]) may expose internal representation by storing an
externally mutable object into
TopNKeyOperator$KeyWrapperComparator.objectInspectors2 At
TopNKeyOperator.java:expose internal representation by storing an externally
mutable object into TopNKeyOperator$KeyWrapperComparator.objectInspectors2 At
TopNKeyOperator.java:[line 70] |
| | Class org.apache.hadoop.hive.ql.exec.vector.VectorTopNKeyOperator defines
non-transient non-serializable instance field vContext In
VectorTopNKeyOperator.java:instance field vContext In
VectorTopNKeyOperator.java |
| | org.apache.hadoop.hive.ql.plan.TopNKeyDesc.clone() does not call
super.clone() At TopNKeyDesc.java: At TopNKeyDesc.java:[lines 108-112] |
| | Should
org.apache.hadoop.hive.ql.plan.TopNKeyDesc$TopNKeyDescExplainVectorization be a
_static_ inner class? At TopNKeyDesc.java:inner class? At
TopNKeyDesc.java:[lines 119-127] |
| | org.apache.hadoop.hive.ql.plan.VectorTopNKeyDesc.getKeyExpressions() may
expose internal representation by returning VectorTopNKeyDesc.keyExpressions
At VectorTopNKeyDesc.java:by returning VectorTopNKeyDesc.keyExpressions At
VectorTopNKeyDesc.java:[line 33] |
| |
org.apache.hadoop.hive.ql.plan.VectorTopNKeyDesc.setKeyExpressions(VectorExpression[])
may expose internal representation by storing an externally mutable object
into VectorTopNKeyDesc.keyExpressions At VectorTopNKeyDesc.java:by storing an
externally mutable object into VectorTopNKeyDesc.keyExpressions At
VectorTopNKeyDesc.java:[line 37] |
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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-12546/dev-support/hive-personality.sh
|
| git revision | master / 6ef4a99 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-12546/yetus/diff-checkstyle-ql.txt
|
| findbugs |
http://104.198.109.242/logs//PreCommit-HIVE-Build-12546/yetus/new-findbugs-serde.html
|
| findbugs |
http://104.198.109.242/logs//PreCommit-HIVE-Build-12546/yetus/new-findbugs-ql.html
|
| modules | C: common serde ql itests U: . |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-12546/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> TopNKey: Create a standalone vectorizable TopNKey operator
> ----------------------------------------------------------
>
> Key: HIVE-17896
> URL: https://issues.apache.org/jira/browse/HIVE-17896
> Project: Hive
> Issue Type: New Feature
> Components: Operators
> Affects Versions: 3.0.0
> Reporter: Gopal V
> Assignee: Teddy Choi
> Priority: Major
> Attachments: HIVE-17896.1.patch, HIVE-17896.10.patch,
> HIVE-17896.3.patch, HIVE-17896.4.patch, HIVE-17896.5.patch,
> HIVE-17896.6.patch, HIVE-17896.7.patch, HIVE-17896.8.patch, HIVE-17896.9.patch
>
>
> For TPC-DS Query27, the TopN operation is delayed by the group-by - the
> group-by operator buffers up all the rows before discarding the 99% of the
> rows in the TopN Hash within the ReduceSink Operator.
> The RS TopN operator is very restrictive as it only supports doing the
> filtering on the shuffle keys, but it is better to do this before breaking
> the vectors into rows and losing the isRepeating properties.
> Adding a TopN Key operator in the physical operator tree allows the following
> to happen.
> GBY->RS(Top=1)
> can become
> TNK(1)->GBY->RS(Top=1)
> So that, the TopNKey can remove rows before they are buffered into the GBY
> and consume memory.
> Here's the equivalent implementation in Presto
> https://github.com/prestodb/presto/blob/master/presto-main/src/main/java/com/facebook/presto/operator/TopNOperator.java#L35
> Adding this as a sub-feature of GroupBy prevents further optimizations if the
> GBY is on keys "a,b,c" and the TopNKey is on just "a".
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