Paulo Motta created CASSANDRA-11875:
---------------------------------------
Summary: Create StandaloneDowngrader with support to ma format
Key: CASSANDRA-11875
URL: https://issues.apache.org/jira/browse/CASSANDRA-11875
Project: Cassandra
Issue Type: Sub-task
Reporter: Paulo Motta
Assignee: Kaide Mu
Priority: Minor
Currently {{Upgrader}} receives an sstable in any readable format, and writes
into {{BigFormat.getLatestVersion()}}. We should generalize it by making it
receive a {{target}} version and probably also rename it to
{{SSTableConverter}}.
Based on this we can create an {{StandaloneDowngrader}} tool which will perform
downgrade of specified sstables to a target version. To start with, we should
support only downgrading to {{ma}} format (from current format {{mb}}),
downgrade to any other version should be forbidden. Since we already support
serializing to "ma" we will not need to do any data conversion.
We should also create a test suite that creates an sstable with data in the
current format, perform the downgrade, and verify data in the new format is
correct. This will be the base tests suite for more advanced conversions in the
future.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
