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Posted to issues@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2019/04/02 17:53:00 UTC

[jira] [Updated] (HIVE-21377) Using Oracle as HMS DB with DirectSQL

     [ https://issues.apache.org/jira/browse/HIVE-21377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ashutosh Chauhan updated HIVE-21377:
------------------------------------
       Resolution: Fixed
    Fix Version/s: 4.0.0
           Status: Resolved  (was: Patch Available)

Pushed to master. Thanks, Rajkumar!

> Using Oracle as HMS DB with DirectSQL
> -------------------------------------
>
>                 Key: HIVE-21377
>                 URL: https://issues.apache.org/jira/browse/HIVE-21377
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>    Affects Versions: 3.0.0, 3.1.0
>            Reporter: Bo 
>            Assignee: Rajkumar Singh
>            Priority: Major
>             Fix For: 4.0.0
>
>         Attachments: HIVE-21377.01.patch, HIVE-21377.patch, blob-cast-error.jpg
>
>
> When we use the Oracle as HMS DB, we saw this kind of contents in the HMS log accordingly:
> {code:java}
> 2019-02-02 T08:23:57,102 WARN [Thread-12]: metastore.ObjectStore (ObjectStore.java:handleDirectSqlError(3741)) - Falling back to ORM path due to direct SQL failure (this is not an error): Cannot extract boolean from column value 0 at org.apache.hadoop.hive.metastore.MetaStoreDirectSql.extractSqlBoolean(MetaStoreDirectSql.java:1031) at org.apache.hadoop.hive.metastore.MetaStoreDirectSql.getPartitionsFromPartitionIds(MetaStoreDirectSql.java:728) at org.apache.hadoop.hive.metastore.MetaStoreDirectSql.access$300(MetaStoreDirectSql.java:109) at org.apache.hadoop.hive.metastore.MetaStoreDirectSql$1.run(MetaStoreDirectSql.java:471) at org.apache.hadoop.hive.metastore.Batchable.runBatched(Batchable.java:73) at org.apache.hadoop.hive.metastore.MetaStoreDirectSql.getPartitionsViaSqlFilter(MetaStoreDirectSql.java:462) at org.apache.hadoop.hive.metastore.ObjectStore$8.getSqlResult(ObjectStore.java:3392)
> {code}
> In Hive, we handle the Postgres, MySQL and Derby for the extractSqlBoolean.
> But Oracle return the 0 or 1 for Boolean. So we need to modify the MetastoreDirectSqlUtils.java - [1]
> So, could add this snip in this code?
> {code:java}
>   static Boolean extractSqlBoolean(Object value) throws MetaException {
>     if (value == null) {
>       return null;
>     }
>     if (value instanceof Boolean) {
>       return (Boolean)value;
>     }
>     if (value instanceof Number) { // add
>       try {
>         return BooleanUtils.toBooleanObject((BigDecimal) value, 1, 0, null);
>       } catch(IllegalArugmentExeception iae){
>       // NOOP
>       }
>     if (value instanceof String) {
>       try {
>         return BooleanUtils.toBooleanObject((String) value, "Y", "N", null);
>       } catch (IllegalArgumentException iae) {
>         // NOOP
>       }
>     }
>     throw new MetaException("Cannot extract boolean from column value " + value);
>   }
> {code}
>  [1] -
> https://github.com/apache/hive/blob/f51f108b761f0c88647f48f30447dae12b308f31/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/MetastoreDirectSqlUtils.java#L501-L527
>  



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