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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hive/Locking" by NamitJain
Date Tue, 12 Apr 2011 01:31:44 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The "Hive/Locking" page has been changed by NamitJain.
http://wiki.apache.org/hadoop/Hive/Locking?action=diff&rev1=27&rev2=28

--------------------------------------------------

  
  The default hive behavior will not be changed, and concurrency will not be supported.
  
+ == Turn off Concurrency ==
+ 
+ You can turn off concurrency by setting the following variable to false: hive.support.concurrency
+ 
+ == Debugging ==
+ 
+ You can see the locks on a table by issuing the following command: 
+ 
+  * SHOW LOCKS <TABLE_NAME>;
+  * SHOW LOCKS <TABLE_NAME> extended;
+  * SHOW LOCKS <TABLE_NAME> PARTITION (<PARTITION_DESC>);
+  * SHOW LOCKS <TABLE_NAME> PARTITION (<PARTITION_DESC>) extended;
+ 

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