[ https://issues.apache.org/jira/browse/CASSANDRA-13474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
C. Scott Andreas updated CASSANDRA-13474: ----------------------------------------- Component/s: Core > Cassandra pluggable storage engine > ---------------------------------- > > Key: CASSANDRA-13474 > URL: https://issues.apache.org/jira/browse/CASSANDRA-13474 > Project: Cassandra > Issue Type: New Feature > Components: Core > Reporter: Dikang Gu > Priority: Major > > Instagram is working on a project to significantly reduce Cassandra's tail > latency, by implementing a new storage engine on top of RocksDB, named > Rocksandra. > We started a prototype of single column (key-value) use case, and then > implemented a full design to support most of the data types and data models > in Cassandra, as well as streaming. > After a year of development and testing, we have rolled out the Rocksandra > project to our internal deployments, and observed 3-4X reduction on P99 read > latency in general, even more than 10 times reduction for some use cases. > We published a blog post about the wins and the benchmark metrics on AWS > environment. > https://engineering.instagram.com/open-sourcing-a-10x-reduction-in-apache-cassandra-tail-latency-d64f86b43589 > I think the biggest performance win comes from we get rid of most Java > garbages created by current read/write path and compactions, which reduces > the JVM overhead and makes the latency to be more predictable. > We are very excited about the potential performance gain. As the next step, I > propose to make the Cassandra storage engine to be pluggable (like Mysql and > MongoDB), and we are very interested in providing RocksDB as one storage > option with more predictable performance, together with community. > Design doc for pluggable storage engine: > https://docs.google.com/document/d/1suZlvhzgB6NIyBNpM9nxoHxz_Ri7qAm-UEO8v8AIFsc/edit -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org