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Posted to common-commits@hadoop.apache.org by Apache Wiki <wi...@apache.org> on 2011/04/12 03:31:44 UTC

[Hadoop Wiki] Update of "Hive/Locking" by NamitJain

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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;
+