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Posted to commits@accumulo.apache.org by el...@apache.org on 2014/04/30 18:21:17 UTC

svn commit: r1591388 - /accumulo/site/trunk/content/release_notes/1.6.0.mdtext

Author: elserj
Date: Wed Apr 30 16:21:17 2014
New Revision: 1591388

URL: http://svn.apache.org/r1591388
Log:
ACCUMULO-2396 Add notice about DefaultKeySizeConstraint

Modified:
    accumulo/site/trunk/content/release_notes/1.6.0.mdtext

Modified: accumulo/site/trunk/content/release_notes/1.6.0.mdtext
URL: http://svn.apache.org/viewvc/accumulo/site/trunk/content/release_notes/1.6.0.mdtext?rev=1591388&r1=1591387&r2=1591388&view=diff
==============================================================================
--- accumulo/site/trunk/content/release_notes/1.6.0.mdtext (original)
+++ accumulo/site/trunk/content/release_notes/1.6.0.mdtext Wed Apr 30 16:21:17 2014
@@ -132,6 +132,12 @@ It is recommended that users invoke the 
 
 Be aware that you will need a C++ compiler/toolchain installed to build this library. Check your GNU/Linux distribution documentation for the package manager command.
 
+#### Size-Based Constraint on New Tables
+
+A Constraint is an interface that can determine if a Mutation should be applied or rejected server-side. New tables that are created in 1.6.0 will automatically have the `DefaultKeySizeConstraint` set.
+As performance can suffer when large Keys are inserted into a table, this Constraint will reject any Key that is larger than 1MB. If this constraint is undesired, it can be removed using the `constraint` shell
+command. See the help message on the command for more information.
+
 ### Other notable changes
 
  * [ACCUMULO-842][ACCUMULO-842] Added FATE administration to shell