[
https://issues.apache.org/jira/browse/CASSANDRA-1072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Johan Oskarsson updated CASSANDRA-1072:
---------------------------------------
Attachment: CASSANDRA-1072.patch
This patch implements an increment-only counter with support for both standard
and super columns. Most of the code by Kelvin Kakugawa from CASSANDRA-580 with
cleanup and bug fixes by Johan Oskarsson, Adam Samet and Sylvain Lebresne. The
patch also paves the way for other clock types that use contexts in a similar
way, for example CASSANDRA-1132
For example on how to use it see this thrift system test:
test_incr_standard_insert
Changes include
* Adding a context byte array to thrift and avro clock structs, required for
reconciliation of different versions
* Adding an IncrementCounterClock that together with IncrementCounterReconciler
is responsible for reconciliation etc of increment columns.
* Adding an IContext interface and IncrementCounterContext implementation for
dealing with the context byte arrays.
* Update AES code to account for context-based clock types
* StorageProxy: modification of write path for counter clock types (enforce
CL.ONE to primary replica)
* Exposing some methods needed in the column/container interfaces that exists
in both standard and super colum types
* Various helper methods in FBUtilities for working with byte arrays
* System tests for incr counters (insert, remove, batch operations)
* Unit tests for new classes and methods mentioned above
> Increment counters
> ------------------
>
> Key: CASSANDRA-1072
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1072
> Project: Cassandra
> Issue Type: Sub-task
> Components: Core
> Reporter: Johan Oskarsson
> Assignee: Kelvin Kakugawa
> Attachments: CASSANDRA-1072.patch
>
>
> Break out the increment counters out of CASSANDRA-580. Classes are shared
> between the two features but without the plain version vector code the
> changeset becomes smaller and more manageable.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
