QFS Development

Welcome to QFS!  Visit us at http://quantcast.github.com/qfs.

We have developed the Quantcast File System (QFS), a high performance distributed file system, to meet our big data infrastructure needs. It evolved from the Kosmos File System (KFS), which we adopted in 2008 and started using for secondary storage. We learned many lessons and made many improvements over the years. In 2011, we committed fully when we stopped using HDFS and migrated our primary processing to QFS. Since then we’ve read or written over 4 exabytes to it. We’re confident it’s ready for other users’ production workloads. We have released QFS as open source with the hope that it will serve as a platform for experimental as well as commercial projects.



Showing 1-20 of 180 topics
Mixing replication option and 6+3 RS ppakxe 8/6/17
QFS 2.0 backwards compatibility brian spallholtz 8/2/17
Be Ready for IBM Hadooper.... Gaargi Jain 1/9/17
cptoqfs failure on test cluster with IPv6 and MPTCP Ed Rainey 12/23/16
QFS 1.2.0 with Amazon S3 support is out mcan...@quantcast.com 11/30/16
QFS to/from HDFS 2.7.2 cand...@domaintools.com 11/17/16
qfs-question Karol Lisowski 9/20/16
Can qfs work with very slow interconnects? Ed Rainey 8/22/16
QFS Start and Stop Scripts Michael Kamprath 8/5/16
Documents/Blog posts on QFS mcan...@quantcast.com 8/5/16
Re: [qfs-devel:582] Best Practices at Scale Questions Faraaz Sareshwala 6/15/16
Many thanks, I finally make it work. Adding a new coding scheme!!!!. study lp 6/13/16
A deploy error, 杨效振 6/13/16
how to start all servers using one command 李鹏 6/13/16
file system id mismatch and hello authentication error study lp 5/28/16
Max Disk Size Matt Legh 5/27/16
How to configure the parameters of <rs k, m+n> study lp 5/26/16
lxc-based vm can't mounted by qfs_use qixiang wang 5/23/16
Can't create files Bo Fu 5/21/16
How can I speed up the network? 杨效振 5/13/16
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