Author: jbellis Date: Fri Oct 7 18:24:41 2011 New Revision: 1180133 URL: http://svn.apache.org/viewvc?rev=1180133&view=rev Log: update NEWS
Modified: cassandra/branches/cassandra-1.0.0/NEWS.txt Modified: cassandra/branches/cassandra-1.0.0/NEWS.txt URL: http://svn.apache.org/viewvc/cassandra/branches/cassandra-1.0.0/NEWS.txt?rev=1180133&r1=1180132&r2=1180133&view=diff ============================================================================== --- cassandra/branches/cassandra-1.0.0/NEWS.txt (original) +++ cassandra/branches/cassandra-1.0.0/NEWS.txt Fri Oct 7 18:24:41 2011 @@ -3,6 +3,12 @@ Upgrading --------- + - Upgrading from version 0.7.1+ or 0.8.2+ can be done with a rolling + restart, one node at a time. (0.8.0 or 0.8.1 are NOT network-compatible + with 1.0: upgrade to the most recent 0.8 release first.) + You do not need to bring down the whole cluster at once. + - After upgrading, run nodetool scrub against each node before running + repair, moving nodes, or adding new ones. - CQL inserts/updates now generate microsecond resolution timestamps by default, instead of millisecond. THIS MEANS A ROLLING UPGRADE COULD MIX milliseconds and microseconds, with clients talking to servers @@ -19,9 +25,9 @@ Upgrading - CQL types bytea and date were renamed to blob and timestamp, respectively, to conform with SQL norms. CQL type int is now a 4-byte int, not 8 (which is still available as bigint). - - Cassandra 1.0 uses arena allocation to reduce old generation fragmentation. - This means there is a minimum overhead of 1MB per ColumnFamily plus - 1MB per index. + - Cassandra 1.0 uses arena allocation to reduce old generation + fragmentation. This means there is a minimum overhead of 1MB + per ColumnFamily plus 1MB per index. - The SimpleAuthenticator and SimpleAuthority classes have been moved to the example directory (and are thus not available from the binary distribution). They never provided actual security and in their current