[ 
https://issues.apache.org/jira/browse/HIVE-18494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16335705#comment-16335705
 ] 

Hive QA commented on HIVE-18494:
--------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  
0s{color} | {color:blue} Findbugs executables are not available. {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}  6m 
46s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
36s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
15s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
46s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
32s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
32s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
16s{color} | {color:green} standalone-metastore: The patch generated 0 new + 
297 unchanged - 2 fixed = 297 total (was 299) {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 
47s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
12s{color} | {color:red} The patch generated 6 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 11m  1s{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/dev-support/hive-personality.sh |
| git revision | master / 3bbf35f |
| Default Java | 1.8.0_111 |
| asflicense | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-8774/yetus/patch-asflicense-problems.txt
 |
| modules | C: standalone-metastore U: standalone-metastore |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-8774/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Regression: from HIVE-18069, the metastore directsql is getting disabled
> ------------------------------------------------------------------------
>
>                 Key: HIVE-18494
>                 URL: https://issues.apache.org/jira/browse/HIVE-18494
>             Project: Hive
>          Issue Type: Bug
>          Components: Standalone Metastore
>            Reporter: Gopal V
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>         Attachments: HIVE-18494.patch
>
>
> {code:java}
> 018-01-19T02:12:34,457  WARN [pool-10-thread-1] metastore.ObjectStore: 
> Falling back to ORM path due to direct SQL failure (this is not an error): 
> java.lang.String cannot be cast to [Ljava.lang.Object; at
> org.apache.hadoop.hive.metastore.MetaStoreDirectSql.getTables(MetaStoreDirectSql.java:412)
>  at 
> org.apache.hadoop.hive.metastore.ObjectStore$2.getSqlResult(ObjectStore.java:1336)
> 2018-01-19T02:12:34,457 DEBUG [pool-10-thread-1] metastore.ObjectStore: Full 
> DirectSQL callstack for debugging (note: this is not an error)
> java.lang.ClassCastException: java.lang.String cannot be cast to 
> [Ljava.lang.Object;
>         at 
> org.apache.hadoop.hive.metastore.MetaStoreDirectSql.getTables(MetaStoreDirectSql.java:412)
>  ~[hive-exec-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
>         at 
> org.apache.hadoop.hive.metastore.ObjectStore$2.getSqlResult(ObjectStore.java:1336)
>  ~[hive-exec-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
>         at 
> org.apache.hadoop.hive.metastore.ObjectStore$2.getSqlResult(ObjectStore.java:1332)
>  ~[hive-exec-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
>         at 
> org.apache.hadoop.hive.metastore.ObjectStore$GetHelper.run(ObjectStore.java:3200)
>  ~[hive-exec-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
>         at 
> org.apache.hadoop.hive.metastore.ObjectStore.getTablesInternal(ObjectStore.java:1344)
>  ~[hive-exec-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
>         at 
> org.apache.hadoop.hive.metastore.ObjectStore.getTables(ObjectStore.java:1323) 
> ~[hive-exec-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
> {code}
> The DataNucleus layer returns List<String> for this case, when exactly one 
> column has been selected.
> And MetastoreDirectSQL is disabled for all further queries.



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