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https://issues.apache.org/jira/browse/HIVE-20349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16620082#comment-16620082
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Hive QA commented on HIVE-20349:
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| (/) *{color:green}+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} 0m
39s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m
2s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
28s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
53s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
26s{color} | {color:blue} druid-handler in master has 13 extant Findbugs
warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m
5s{color} | {color:blue} ql in master has 2326 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
12s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
10s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m
4s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
11s{color} | {color:green} druid-handler: The patch generated 0 new + 30
unchanged - 2 fixed = 30 total (was 32) {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
40s{color} | {color:green} The patch ql passed checkstyle {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
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
13s{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} 28m 27s{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-13895/dev-support/hive-personality.sh
|
| git revision | master / 9c90776 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| modules | C: druid-handler ql U: . |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-13895/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Implement Retry Logic in HiveDruidSplit for Scan Queries
> --------------------------------------------------------
>
> Key: HIVE-20349
> URL: https://issues.apache.org/jira/browse/HIVE-20349
> Project: Hive
> Issue Type: Bug
> Components: Druid integration
> Reporter: Nishant Bangarwa
> Assignee: Nishant Bangarwa
> Priority: Major
> Attachments: HIVE-20349.1.patch, HIVE-20349.2.patch,
> HIVE-20349.3.patch, HIVE-20349.4.patch, HIVE-20349.5.patch, HIVE-20349.patch
>
>
> while distributing druid scan query we check where the segments are loaded
> and then each HiveDruidSplit directly queries the historical node.
> There are few cases when we need to retry and refetch the segments.
> # The segment is loaded on multiple historical nodes and one of them went
> down. in this case when we do not get response from one segment, we query the
> next replica.
> # The segment was loaded onto a realtime task and was handed over, when we
> query the realtime task has already finished. In this case there is no
> replica. The Split needs to query the broker again for the location of the
> segment and then send the query to correct historical node.
> This is also the root cause of failure of druidkafkamini_basic.q test, where
> the segment handover happens before the scan query is executed.
> Note: This is not a problem when we are directly querying Druid brokers as
> the broker handles the retry logic.
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