Use Read Repair for smaller Anti Entropy repairs
------------------------------------------------
Key: CASSANDRA-928
URL: https://issues.apache.org/jira/browse/CASSANDRA-928
Project: Cassandra
Issue Type: Improvement
Reporter: Stu Hood
Priority: Minor
Repairs triggered by AntiEntropyService currently always use the 'streaming'
package, which involves the creation of at least one new SSTable on the
destination of the repair.
For lighter weight repairs when less of a column family is out of sync, it
would be great to be able to conditionally use read-repair. Range commands do
not currently perform read-repairs, so the majority of the work for this ticket
will involve implementing read repair for RangeCommand.
The AntiEntropyService.Differencer class has methods for calculating the
percentage difference between two trees, so once it is possible to do a range
read repair, that option can be plugged in and a threshold chosen.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
