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https://issues.apache.org/jira/browse/HIVE-21509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16807173#comment-16807173
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Hive QA commented on HIVE-21509:
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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} 2m
10s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m
53s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
40s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
27s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
33s{color} | {color:blue} storage-api in master has 48 extant Findbugs
warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
53s{color} | {color:blue} llap-server in master has 81 extant Findbugs
warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
28s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
30s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m
23s{color} | {color:red} llap-server in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m
23s{color} | {color:red} llap-server in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 23s{color}
| {color:red} llap-server in the patch failed. {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
15s{color} | {color:red} llap-server: The patch generated 1 new + 29 unchanged
- 1 fixed = 30 total (was 30) {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} 0m
21s{color} | {color:red} llap-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
27s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
15s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 17m 38s{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-16800/dev-support/hive-personality.sh
|
| git revision | master / 34d2bda |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| mvninstall |
http://104.198.109.242/logs//PreCommit-HIVE-Build-16800/yetus/patch-mvninstall-llap-server.txt
|
| compile |
http://104.198.109.242/logs//PreCommit-HIVE-Build-16800/yetus/patch-compile-llap-server.txt
|
| javac |
http://104.198.109.242/logs//PreCommit-HIVE-Build-16800/yetus/patch-compile-llap-server.txt
|
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-16800/yetus/diff-checkstyle-llap-server.txt
|
| findbugs |
http://104.198.109.242/logs//PreCommit-HIVE-Build-16800/yetus/patch-findbugs-llap-server.txt
|
| modules | C: storage-api llap-server U: . |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-16800/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> LLAP may cache corrupted column vectors and return wrong query result
> ---------------------------------------------------------------------
>
> Key: HIVE-21509
> URL: https://issues.apache.org/jira/browse/HIVE-21509
> Project: Hive
> Issue Type: Bug
> Components: llap
> Reporter: Adam Szita
> Assignee: Adam Szita
> Priority: Major
> Attachments: HIVE-21509.0.wip.patch, HIVE-21509.1.wip.patch,
> HIVE-21509.2.patch, HIVE-21509.3.patch, HIVE-21509.4.patch
>
>
> In some scenarios, LLAP might store column vectors in cache that are getting
> reused and reset just before their original content would be written.
> The issue is a concurrency issue and is thereby flaky. It is not easy to
> reproduce, but the odds of surfacing this issue can by improved by setting
> LLAP executor and IO thread counts this way:
> * set hive.llap.daemon.num.executors=32;
> * set hive.llap.io.threadpool.size=1;
> * using TPCDS input data of store_sales table, have at least a couple of
> 100k's of rows, and use text format:
> {code:java}
> ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
> WITH SERDEPROPERTIES ( 'field.delim'='|', 'serialization.format'='|')
> STORED AS INPUTFORMAT 'org.apache.hadoop.mapred.TextInputFormat'
> OUTPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'{code}
> * having more splits increases the issue showing itself, so it is worth to
> _set tez.grouping.min-size=1024; set tez.grouping.max-size=1024;_
> * run query on this this table: select min(ss_sold_date_sk) from store_sales;
> The first query result is correct (2450816 in my case). Repeating the query
> will trigger reading from LLAP cache and produce a wrong result: 0.
> If one wants to make sure of running into this issue, place a
> Thread.sleep(250) at the beginning of VectorDeserializeOrcWriter#run().
>
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