You can upgrade from these releases to DataStax Enterprise 2.1:
This following component version changes and other major changes are included in DSE upgrades:
|DSE 1.0, 1.0.x, or 2.0.x||Cassandra updated to 1.0.10, DataStax OpsCenter to 2.1, Mahout 0.6 added|
Before upgrading, take a snapshot of the node to be upgraded to make a backup of the data. This optional, recommended step allows you to rollback to the previous version if necessary. Taking a snapshot is fast, especially if you have JNA installed. Taking a snapshot effectively consumes zero disk space until you start compacting the live data files again.
Observe the following order for upgrading nodes in a mixed workload cluster:
Analytics: Jobtracker, remaining seeds, remaining task trackers Cassandra: Seeds, then remaining nodes Solr: Seeds, then remaining nodes
These sections describe how to upgrade from DataStax Community 1.0.x to DataStax Enterprise 2.1:
To upgrade from a previous DataStax Enterprise packaged release to DataStax Enterprise 2.1
To upgrade from a previous DataStax Enterprise tarball release to DataStax Enterprise 2.1
Follow the instructions for Upgrading a Tarball Installation of DataStax Community 1.0.x to DataStax Enterprise 2.1.
The procedures listed in the previous section are based on upgrading from DataStax Community 1.0.x to DataStax Enterprise 2.1. Generally, these procedures work for upgrading from other releases to DataStax Enterprise 2.1. Exceptions are:
NEWS.txt contains late-breaking information about upgrading from previous versions of Cassandra.
A NEWS.txt archive is installed in the following locations:
NEWS.txt is also posted on the Apache Cassandra project web site.
Unpack NEWS.txt.gz. For example:
cd /usr/share/doc/dse-libcassandra-2.1.1 sudo gunzip NEWS.txt.gz
Take at look at the information that is pertinent to your old version if there is any. For example, to upgrade from some early versions, you might need to upgrade sstables.
If you use counter columns, upgrading SSTables is highly recommended.
<install_location>/bin/nodetool -h upgradesstables
Package or AMI
nodetool -h upgradesstables