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From "Dikang Gu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13476) RocksDB based storage engine
Date Mon, 02 Oct 2017 21:44:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16188902#comment-16188902
] 

Dikang Gu commented on CASSANDRA-13476:
---------------------------------------

I gave an update of the progress on NGCC last week, the features we already supported at this
moment include: 

Features supported in V1:
* Most of non-nested data types
* Table schema
* Point query
* Range query
* Mutations
* Timestamp
* TTL
* Deletions/Cell tombstones
* Streaming

Features we do not support yet:
* Multi-partition query
* Nested data types
* Counters
* Range tombstone
* Materialized views
* Secondary indexes
* SASI
* Repair

> RocksDB based storage engine
> ----------------------------
>
>                 Key: CASSANDRA-13476
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13476
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Dikang Gu
>
> As I mentioned in CASSANDRA-13474, we got huge P99 read latency gain from the RocksDB
integration experiment.
> After we make the existing storage engine to be pluggable, we want to implement a RocksDB
based storage engine, which can support existing Cassandra data model, and provide better
and more predictable performance.
> The effort will include but not limited to:
> 1. Wide column support on RocksDB
> 2. Streaming support on RocksDB
> 3. RocksDB instances management
> 4. Nodetool support
> 5. Metrics and monitoring
> 6. Counter support on RocksDB



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