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From "Devender Yadav (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-4176) Dynamic Schema Discovery is not done in case of Drill- Hive
Date Wed, 09 Dec 2015 11:20:11 GMT

     [ https://issues.apache.org/jira/browse/DRILL-4176?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Devender Yadav  updated DRILL-4176:
-----------------------------------
    Fix Version/s: 1.4.0

> Dynamic Schema Discovery is not done in case of Drill- Hive
> -----------------------------------------------------------
>
>                 Key: DRILL-4176
>                 URL: https://issues.apache.org/jira/browse/DRILL-4176
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.3.0
>            Reporter: Devender Yadav 
>             Fix For: 1.4.0
>
>
> I am using hive with drill.
> Storage Plugin info:
> {
>   "type": "hive",
>   "enabled": true,
>   "configProps": {
>     "hive.metastore.uris": "",
>     "javax.jdo.option.ConnectionURL": "jdbc:mysql://localhost:3306/metastore_hive",
>     "javax.jdo.option.ConnectionDriverName": "com.mysql.jdbc.Driver",
>     "javax.jdo.option.ConnectionUserName": "root",
>     "javax.jdo.option.ConnectionPassword": "root",
>     "hive.metastore.warehouse.dir": "/user/hive/warehouse",
>     "fs.default.name": "file:///",
>     "hive.metastore.sasl.enabled": "false"
>   }
> }
> It's working fine for querying and all.
> Then I wanted to check whether it automatically discover newly created tables in hive
or not.
> I started drill in embedded mode and used a particular database in hive using
> use hive.testDB;
> Here testDB is a database in Hive with tables t1 & t2. Then I queried:
> show tables;
> It gave me table names
> t1 
> t2
> I created a table t3 in hive and again fired show tables; in Drill. It's still showing
 t1 t2. After 5-10 min I fired  show tables; again and it's showing t1 t2 t3.
> I think it should show t3 immediately after adding t3 in hive.
> What can be reason for this behavior and how drill is handling it internally?



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