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riptano / ComboAMI

The AMI takes a set of input parameters via the EC2 user-data to install, RAID, ring, and launch a DataStax Enterprise/Community cluster.
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Please fix Cassandra version in http://debian.datastax.com/community #106

Closed czchen closed 8 years ago

czchen commented 8 years ago

The current /etc/apt/sources.list.d/datastax.sources.list uses the following configuration:

deb http://debian.datastax.com/community stable main

It is very dangerous since apt full-upgrade will upgrade from 2.2 to 3.0 without user notices it. It shall uses the suite like 2.2, 3.0 to fix the Cassandra version so that apt full-upgrade will only upgrade for bug fix, but not new stable release.

mlococo commented 8 years ago

The core team has no plans to change this behavior for 2 reasons. 1) ComboAMI is intended to make building short-lived test-clusters easy. There are lots of complex maintenance tasks related running a Cassandra cluster that it doesn't help with, and for long-lived clusters you're better of simply installing packages or using the standalone installer yourself. 2) With Cassandra 3.0, the tick/tock rapid release cycle means the end of long-lived bugfix branches. Every other release will bring new features and some upgrade risk, it's best to simply control when/how upgrades happen.

The suggested workaround is to put a "hold" on the affected packages as described in https://help.ubuntu.com/community/PinningHowto This will prevent all automatic upgrades and enable you to control exactly when upgrades happen, and the starting/ending versions.