[
https://issues.apache.org/jira/browse/CASSANDRA-2995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13084178#comment-13084178
]
Jonathan Ellis commented on CASSANDRA-2995:
-------------------------------------------
I think what I'd like to do is make the SSTable engine pluggable (primarily for
CASSANDRA-674) but not try to generalize to "anything that can store rows and
columns" (or worse, "anything that can store keys and values"):
>From an application standpoint, if you can't do sparse, wide rows, you break
>compatibility with 90% of Cassandra applications. So that rules out almost
>everything; if you can't provide the same data model, you're creating
>fragmentation, not pluggability.
For the remaining few options, I don't think the upside outweighs the the
benefit of being able to assume some things from the storage engine:
- writes do not require random i/o
- streaming does not require random i/o
- block compressibility
- etc.
> Making Storage Engine Pluggable
> -------------------------------
>
> Key: CASSANDRA-2995
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2995
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Affects Versions: 0.8.2
> Reporter: Muga Nishizawa
> Fix For: 1.0
>
>
> Will you design and implement Cassandra's storage engine API like MyCassandra?
> MyCassandra provides extensible architecture for pluging other storage
> engines to Cassandra like MySQL.
> https://github.com/sunsuk7tp/MyCassandra/
>
> It could be advantageous for Cassandra to make the storage engine pluggable.
> This could allow Cassandra to
> - deal with potential use cases where maybe the current sstables are not the
> best fit
> - allow several types of internal storage formats (at the same time)
> optimized for different data types
> - allow easier experiments and research on new storage formats (encourage
> research institutions to do strange things with Cassandra)
> - there could also be potential advantages from better isolation of the data
> engine in terms of less risk for data corruptions if other parts of Cassandra
> change
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
