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https://issues.apache.org/jira/browse/PHOENIX-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17221945#comment-17221945
 ] 

Hadoop QA commented on PHOENIX-6207:
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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}  5m 
54s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {color} |
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green}  0m  
0s{color} | {color:green} Patch does not have any anti-patterns. {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 1 new or modified test 
files. {color} |
|| || || || {color:brown} 4.x Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  6m 
 5s{color} | {color:green} 4.x passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
58s{color} | {color:green} 4.x passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
 6s{color} | {color:green} 4.x passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
41s{color} | {color:green} 4.x passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  2m 
56s{color} | {color:blue} phoenix-core in 4.x has 953 extant spotbugs warnings. 
{color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  5m 
20s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
53s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  1m  
6s{color} | {color:red} phoenix-core: The patch generated 48 new + 1618 
unchanged - 23 fixed = 1666 total (was 1641) {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} javadoc {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} spotbugs {color} | {color:red}  3m 
10s{color} | {color:red} phoenix-core generated 1 new + 953 unchanged - 0 fixed 
= 954 total (was 953) {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}121m 22s{color} 
| {color:red} phoenix-core in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
33s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}151m 29s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:phoenix-core |
|  |  Unread field:GroupedAggregateRegionObserver.java:[line 426] |
| Failed junit tests | phoenix.end2end.CostBasedDecisionIT |
|   | phoenix.schema.stats.TxStatsCollectorIT |
|   | phoenix.schema.stats.NonTxStatsCollectorIT |
|   | phoenix.end2end.join.HashJoinNoIndexIT |
|   | phoenix.schema.stats.NamespaceEnabledStatsCollectorIT |
|   | phoenix.end2end.AggregateIT |
|   | phoenix.end2end.SpillableGroupByIT |
|   | phoenix.schema.stats.NamespaceDisabledStatsCollectorIT |
|   | phoenix.end2end.join.HashJoinLocalIndexIT |
|   | phoenix.end2end.join.HashJoinGlobalIndexIT |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://ci-hadoop.apache.org/job/PreCommit-PHOENIX-Build/119/artifact/patchprocess/Dockerfile
 |
| JIRA Issue | PHOENIX-6207 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13014243/PHOENIX-6207.4.x.001.patch
 |
| Optional Tests | dupname asflicense javac javadoc unit spotbugs hbaseanti 
checkstyle compile |
| uname | Linux 7879a4a8c1b6 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev/phoenix-personality.sh |
| git revision | 4.x / ac0538b |
| Default Java | Private Build-1.8.0_242-8u242-b08-0ubuntu3~16.04-b08 |
| checkstyle | 
https://ci-hadoop.apache.org/job/PreCommit-PHOENIX-Build/119/artifact/patchprocess/diff-checkstyle-phoenix-core.txt
 |
| spotbugs | 
https://ci-hadoop.apache.org/job/PreCommit-PHOENIX-Build/119/artifact/patchprocess/new-spotbugs-phoenix-core.html
 |
| unit | 
https://ci-hadoop.apache.org/job/PreCommit-PHOENIX-Build/119/artifact/patchprocess/patch-unit-phoenix-core.txt
 |
|  Test Results | 
https://ci-hadoop.apache.org/job/PreCommit-PHOENIX-Build/119/testReport/ |
| Max. process+thread count | 6984 (vs. ulimit of 30000) |
| modules | C: phoenix-core U: phoenix-core |
| Console output | 
https://ci-hadoop.apache.org/job/PreCommit-PHOENIX-Build/119/console |
| versions | git=2.7.4 maven=3.3.9 spotbugs=4.1.3 |
| Powered by | Apache Yetus 0.12.0 https://yetus.apache.org |


This message was automatically generated.



> Paged server side grouped aggregate operations
> ----------------------------------------------
>
>                 Key: PHOENIX-6207
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-6207
>             Project: Phoenix
>          Issue Type: Improvement
>    Affects Versions: 5.0.0, 4.14.3
>            Reporter: Kadir OZDEMIR
>            Assignee: Kadir OZDEMIR
>            Priority: Major
>             Fix For: 4.16.0
>
>         Attachments: PHOENIX-6207.4.x.001.patch
>
>
> Phoenix provides the option of performing query operations on the client or 
> server side. This is decided by the Phoenix optimizer based on configuration 
> parameters. For the server side option, the table operation is parallelized 
> such that multiple table regions are scanned. However, currently there is no 
> paging capability and the server side operation can take long enough lead to 
> HBase client timeouts. Putting a limit on the number of rows to be processed 
> within a single RPC call (i.e., the next operation on the scanner) on the 
> server side using a Phoenix level paging is highly desirable. This paging 
> mechanism has been already implemented for index rebuild and verification 
> operations and proven to be effective to prevent timeouts. This Jira is for 
> implementing this paging for the server side grouped aggregate operations. 



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