update NEWS

git-svn-id: https://svn.apache.org/repos/asf/cassandra/branches/cassandra-0.8@1094659 13f79535-47bb-0310-9956-ffa450edef68

NEWS.txt

@@ -3,15 +3,29 @@
 
 Upgrading
 ---------
-    Avro record classes used in map/reduce and Hadoop streaming code have
-    moved from org.apache.cassandra.avro to org.apache.cassandra.hadoop.avro,
-    applications using these classes will need to be updated accordingly.
+    - Upgrading from version 0.7.1 or later can be done with a rolling
+      restart, one node at a time.  You do not need to bring down the
+      whole cluster.
+    - Avro record classes used in map/reduce and Hadoop streaming code have
+      moved from org.apache.cassandra.avro to org.apache.cassandra.hadoop.avro,
+      applications using these classes will need to be updated accordingly.
+    - The loadbalance command has been removed from nodetool.  For similar
+      behavior, decommission then rebootstrap with empty initial_token.
+    - repair now works on a token range, rather than the entire ring. This
+      means that "run repair against each node" will now repair the ring with
+      no redundant work.
 
-	Upgrading from version 0.7.1 or later can be done with a rolling restart,
-	one node at a time.  You do not need to bring down the whole cluster.
-
-    The loadbalance command has been removed from nodetool.  For similar
-    behavior, decommission then rebootstrap with empty initial_token.
+Features
+--------
+    - added CQL client API and JDBC/DBAPI2-compliant drivers for Java and
+      Python, respectively (see: drivers/ subdirectory and doc/cql)
+    - added distributed Counters feature; 
+      see http://wiki.apache.org/cassandra/Counters
+    - optional intranode encryption; see comments around 'encryption_options'
+      in cassandra.yaml
+    - compaction multithreading and rate-limiting; see 
+      'compaction_multithreading' and 'compaction_throughput_mb_per_sec' in
+      cassandra.yaml
 
 Other
 -----

conf/cassandra.yaml

@@ -252,7 +252,7 @@ in_memory_compaction_limit_in_mb: 64
 # Enables multiple compactions to execute at once. This is highly recommended
 # for preserving read performance in a mixed read/write workload as this
 # avoids sstables from accumulating during long running compactions.
-compaction_multithreading: true
+compaction_multithreading: false
 
 # Throttles compaction to the given total throughput across the entire
 # system. The faster you insert data, the faster you need to compact in