Author: slebresne
Date: Mon Dec 19 09:16:07 2011
New Revision: 1220661
URL: http://svn.apache.org/viewvc?rev=1220661&view=rev
Log:
document reference to #1938
Modified:
cassandra/trunk/src/java/org/apache/cassandra/db/context/CounterContext.java
Modified:
cassandra/trunk/src/java/org/apache/cassandra/db/context/CounterContext.java
URL:
http://svn.apache.org/viewvc/cassandra/trunk/src/java/org/apache/cassandra/db/context/CounterContext.java?rev=1220661&r1=1220660&r2=1220661&view=diff
==============================================================================
---
cassandra/trunk/src/java/org/apache/cassandra/db/context/CounterContext.java
(original)
+++
cassandra/trunk/src/java/org/apache/cassandra/db/context/CounterContext.java
Mon Dec 19 09:16:07 2011
@@ -60,6 +60,10 @@ import org.apache.cassandra.utils.NodeId
* - delta + delta = sum counts (and logical clock)
* - delta + other = keep the delta one
* - other + other = keep the shard with highest logical clock
+ *
+ * For a detailed description of the meaning of a delta and why the merging
+ * rules work this way, see CASSANDRA-1938 - specifically the 1938_discussion
+ * attachment.
*/
public class CounterContext implements IContext
{
