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Posted to issues@spark.apache.org by "Wang Haihua (JIRA)" <ji...@apache.org> on 2017/06/11 08:49:18 UTC

[jira] [Updated] (SPARK-21054) Reset Command support reset specific property which is compatible with Hive

     [ https://issues.apache.org/jira/browse/SPARK-21054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wang Haihua updated SPARK-21054:
--------------------------------
    Description: 
When we transfer our SQL in production from Hive to SparkSQL,  we found some SQL like {{reset dfs.blocksize;}} will throw error in SparkSQL.

We found cause is, 
after SPARK-15330, Spark 2.0.0 support Reset command wich will Reset all properties. 
But after Hive 2.1.1 (HIVE-14418), Hive also support Reset Command for specific property. 

SQL compatibility with Hive will ease user more, and lower the cost that transfer SQL from Hive to SparkSQL.

  was:
When we transfer our SQL in production from Hive to SparkSQL,  we found some SQL like {{reset dfs.blocksize;}} will throw error in SparkSQL.

We found cause is, 
after SPARK-15330, Spark 2.0.0 support Reset command wich will Reset all properties. 
But after Hive 2.1.1 (HIVE-14418), Hive also support Reset Command for specific property. 

SQL compatibility with Hive will ease user more, lower the cost that transfer SQL from Hive to SparkSQL.


> Reset Command support reset specific property which is compatible with Hive
> ---------------------------------------------------------------------------
>
>                 Key: SPARK-21054
>                 URL: https://issues.apache.org/jira/browse/SPARK-21054
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.1.1
>            Reporter: Wang Haihua
>            Priority: Minor
>             Fix For: 2.1.1
>
>
> When we transfer our SQL in production from Hive to SparkSQL,  we found some SQL like {{reset dfs.blocksize;}} will throw error in SparkSQL.
> We found cause is, 
> after SPARK-15330, Spark 2.0.0 support Reset command wich will Reset all properties. 
> But after Hive 2.1.1 (HIVE-14418), Hive also support Reset Command for specific property. 
> SQL compatibility with Hive will ease user more, and lower the cost that transfer SQL from Hive to SparkSQL.



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