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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3269) HBase table truncate semantics seems broken as "disable" table is now async by default.
Date Wed, 24 Nov 2010 04:05:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12935196#action_12935196
] 

stack commented on HBASE-3269:
------------------------------

This is the fix:

{code}
pynchon-432:clean_trunk stack$ svn diff 
Index: src/main/ruby/hbase/admin.rb
===================================================================
--- src/main/ruby/hbase/admin.rb        (revision 1038464)
+++ src/main/ruby/hbase/admin.rb        (working copy)
@@ -83,7 +83,7 @@
     # Disables a table
     def disable(table_name)
       return unless enabled?(table_name)
-      @admin.disableTableAsync(table_name)
+      @admin.disableTable(table_name)
     end
 
     #----------------------------------------------------------------------------------------------
{code}

I'm just going to commit.

> HBase table truncate semantics seems broken as "disable" table is now async by default.
> ---------------------------------------------------------------------------------------
>
>                 Key: HBASE-3269
>                 URL: https://issues.apache.org/jira/browse/HBASE-3269
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.90.0
>         Environment: RHEL5 x86_64
>            Reporter: Suraj Varma
>            Assignee: stack
>            Priority: Critical
>             Fix For: 0.90.0, 0.92.0
>
>
> The new async design for disable table seems to have caused a side effect on the truncate
command. (IRC chat with jdcryans)
> Apparent Cause: 
> "Disable" is now async by default. When truncate is called, the disable operation returns
immediately and when the drop is called, the disable operation is still not completed. This
results in HMaster.checkTableModifiable() throwing a TableNotDisabledException.
> With earlier versions, disable returned only after Table was disabled.

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