Author: jbellis
Date: Mon Feb 22 22:15:12 2010
New Revision: 915090
URL: http://svn.apache.org/viewvc?rev=915090&view=rev
Log:
update NEWS
Modified:
incubator/cassandra/branches/cassandra-0.6/NEWS.txt
incubator/cassandra/branches/cassandra-0.6/interface/cassandra.thrift
Modified: incubator/cassandra/branches/cassandra-0.6/NEWS.txt
URL:
http://svn.apache.org/viewvc/incubator/cassandra/branches/cassandra-0.6/NEWS.txt?rev=915090&r1=915089&r2=915090&view=diff
==============================================================================
--- incubator/cassandra/branches/cassandra-0.6/NEWS.txt (original)
+++ incubator/cassandra/branches/cassandra-0.6/NEWS.txt Mon Feb 22 22:15:12 2010
@@ -3,8 +3,11 @@
Features
--------
- - row caching added; configure with the RowsCached attribute
- in ColumnFamily definition
+ - row caching: configure with the RowsCached attribute in
+ ColumnFamily definition
+ - Hadoop map/reduce support see contrib/word_count for an example
+ - experimental authentication support, described under
+ Authenticator in storage.conf
Configuraton
------------
@@ -19,12 +22,16 @@
Thrift API
----------
- - removed deprecated get_key_range Thrift method
+ - removed deprecated get_key_range method
+ - added batch_mutate meethod
+ - deprecated multiget and batch_insert methods in favor of
+ multiget_slice and batch_mutate, respectively
JMX metrics
-----------
- read and write statistics are reported as lifetime totals,
- instead of averages over the last minute.
+ instead of averages over the last minute. average-since-last
+ requested are also available for convenience.
- cache hit rate statistics are now available from JMX under
org.apache.cassandra.db.Caches
- compaction JMX metrics are moved to
@@ -40,10 +47,14 @@
shipped in lib/. If you are installing from binary distribution then
you will need to install Ant (http://ant.apache.org/), and invoke
`ant ivy-retrieve' in order to download needed dependencies.
+ - 0.6 network traffic is not compatible with earlier versions. You
+ will need to shut down all your nodes at once, upgrade, then restart.
+
0.5.0
=====
+
0. The commitlog format has changed (but sstable format has not).
When upgrading from 0.4, empty the commitlog either by running
bin/nodeprobe flush on each machine and waiting for the flush to finish,
@@ -74,21 +85,27 @@
- Added get_range_slice, deprecating get_key_range
+
0.4.2
=====
+
1. Improve default garbage collector options significantly --
throughput will be 30% higher or more.
+
0.4.1
=====
+
1. SnapshotBeforeCompaction configuration option allows snapshotting
before each compaction, which allows rolling back to any version
of the data.
+
0.4.0
=====
+
1. On-disk data format has changed to allow billions of keys/rows per
node instead of only millions. The new format is incompatible with 0.3;
see 0.3 notes below for how to import data from a 0.3 install.
@@ -109,8 +126,10 @@
6. Added commitlog fsync; see "<CommitLogSync>" in configuration.
+
0.3.0
=====
+
1. With enough and large enough keys in a ColumnFamily, Cassandra will
run out of memory trying to perform compactions (data file merges).
The size of what is stored in memory is (S + 16) * (N + M) where S
Modified: incubator/cassandra/branches/cassandra-0.6/interface/cassandra.thrift
URL:
http://svn.apache.org/viewvc/incubator/cassandra/branches/cassandra-0.6/interface/cassandra.thrift?rev=915090&r1=915089&r2=915090&view=diff
==============================================================================
--- incubator/cassandra/branches/cassandra-0.6/interface/cassandra.thrift
(original)
+++ incubator/cassandra/branches/cassandra-0.6/interface/cassandra.thrift Mon
Feb 22 22:15:12 2010
@@ -318,6 +318,7 @@
Perform a get for column_path in parallel on the given list<string> keys.
The return value maps keys to the
ColumnOrSuperColumn found. If no value corresponding to a key is present,
the key will still be in the map, but both
the column and super_column references of the ColumnOrSuperColumn object
it maps to will be null.
+ @deprecated; use multiget_slice
*/
map<string,ColumnOrSuperColumn> multiget(1:required string keyspace,
2:required list<string> keys,
