[ 
https://issues.apache.org/jira/browse/HIVE-19203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16499907#comment-16499907
 ] 

Hive QA commented on HIVE-19203:
--------------------------------

| (/) *{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:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 
31s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
41s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
18s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  2m 
52s{color} | {color:blue} standalone-metastore in master has 214 extant 
Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
51s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
17s{color} | {color:green} the patch passed {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}  3m  
4s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
50s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
12s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 18m 23s{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-11492/dev-support/hive-personality.sh
 |
| git revision | master / a95ec1e |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| modules | C: standalone-metastore U: standalone-metastore |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-11492/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Thread-Safety Issue in HiveMetaStore
> ------------------------------------
>
>                 Key: HIVE-19203
>                 URL: https://issues.apache.org/jira/browse/HIVE-19203
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 3.0.0
>            Reporter: BELUGA BEHR
>            Assignee: Alice Fan
>            Priority: Minor
>         Attachments: HIVE-19203.1.patch
>
>
> [https://github.com/apache/hive/blob/550d1e1196b7c801c572092db974a459aac6c249/standalone-metastore/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java#L345-L351]
> {code:java}
> private static int nextSerialNum = 0;
> private static ThreadLocal<Integer> threadLocalId = new 
> ThreadLocal<Integer>() {
>   @Override
>   protected Integer initialValue() {
>     return nextSerialNum++;
>   }
> };{code}
>  
> {{nextSerialNum}} needs to be an atomic value.



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