About DrTM

Cocytus is a distributed in-memory key-value store which achieves both efficiency and availability by using hybrid erasure coding and replication. With low overhead for latency and throughput, it saves up to 46% memory compared to traditional primary-backup replications when tolerating two failures. An online recovery scheme is applied when failures are detected so that the whole system is able to serve key-value requests continuously.

If you use Cocytus in your work or research, please kindly let us know. We also encourage you to reference our paper:

Here is the bibtex:

@inproceedings{zhang2016cocytus,
    author = {Zhang, Heng and Dong, Mingkai Dong and Chen, Haibo},
    title = { Efficient and Available In-memory KV-Store with Hybrid Erasure Coding and Replication},
    booktitle = {Proceedings of the 14th USENIX Conference on File and Storage Technologies},
    series = {FAST '16},
    year = {2016},
    location = {Santa Clara, CA},
    publisher = {ACM},
} 

Dependencies

• libevent, http://www.monkey.org/~provos/libevent/ (libevent-dev)
• Jerasure & GF-Complete, http://jerasure.org/

Build

To configure and build Cocytus, you need to install the required dependencies first. Then execute the following commands.

$ ./autogen.sh
$ ./configure --enable-cocytus
$ make

If the libraries are not installed in the default location, you may need to add the CPPFLAGS and LDFLAGS explicitly in the configuration phase.

$ ./autogen.sh
$ ./configure --enable-cocytus CPPFLAGS='-I/path/to/include' LDFLAGS='-L/path/to/libs'
$ make

Website

• http://ipads.se.sjtu.edu.cn/pub/projects/cocytus