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Posted to commits@accumulo.apache.org by kt...@apache.org on 2014/04/08 19:20:56 UTC
svn commit: r1585785 -
/accumulo/site/trunk/content/release_notes/1.6.0.mdtext
Author: kturner
Date: Tue Apr 8 17:20:56 2014
New Revision: 1585785
URL: http://svn.apache.org/r1585785
Log:
ACCUMULO-2396 made sentence flow better
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=1585785&r1=1585784&r2=1585785&view=diff
==============================================================================
--- accumulo/site/trunk/content/release_notes/1.6.0.mdtext (original)
+++ accumulo/site/trunk/content/release_notes/1.6.0.mdtext Tue Apr 8 17:20:56 2014
@@ -36,7 +36,7 @@ Administering an Accumulo instance with
### Conditional Mutations
-Accumulo now offers a way to make atomic read,modify,write row changes from the client side. Accumulo now supports atomic test and set row operations. [ACCUMULO-1000][ACCUMULO-1000] added conditional mutations and a conditional writer. A conditional mutation has tests on columns that must pass before any changes are made. These test are executed in server processes while a row lock is held. Below is a simple example of making atomic row changes using conditional mutations.
+Accumulo now offers a way to make atomic read,modify,write row changes from the client side. Atomic test and set row operations make this possible. [ACCUMULO-1000][ACCUMULO-1000] added conditional mutations and a conditional writer. A conditional mutation has tests on columns that must pass before any changes are made. These test are executed in server processes while a row lock is held. Below is a simple example of making atomic row changes using conditional mutations.
1. Read columns X,Y,SEQ into a,b,s from row R1 using an isolated scanner.
2. For row R1 write conditional mutation X=f(a),Y=g(b),SEQ=s+1 if SEQ==s.