distributed systems

Scalable systems lay essential foundations of the modern information industry. HPC data centers tend to have hundreds to thousands of nodes in their clusters. The use of “extreme-scale” distributed systems has given birth to a new type of bug: scalability bugs.

This project aims at designing efficient, adaptive link level load balancers for networks that handle different kinds of traffic, in particular networks where flows are heterogeneous in terms of their round trip times.

CephFS is a distributed file system on top of Ceph. It is implemented as a distributed metadata service (MDS) that uses dynamic subtree balancing to trade parallelism for locality during a continually changing workloads.