Первые результаты нового этапа развития учебно-научной работы в рамках деятельности класса Конфуция Новосибирского государственного университета

This book presents the authors' updated view on the most relevant topics of distributed systems. This second edition shares most of the contents with the previous one in terms of contents/chapters, but many of the chapters have been updated and some new material has been added. Most notably, a new chapter on distributed systems architectures has been added as Chapter 2, giving a general view on the ways distributed systems can be organized.

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Distributed systems: principles and paradigms (2nd edition)

Due to VFS architecture limitation, Linux NFSv4 and 4.1 client cannot join RPC requests into compounds even in cases when it is allowed by protocol specification. This leads to the high sensitivity to the network latency and loss of performance on metadata-intensive operations, especially on workloads when many small files are opened. Similar issue exists in other Unix-like kernels. We propose a modification to VFS API that resolves this issue. We have a demo implementation of modified VFS and NFS client that shows measurable improvement of latency and general throughput on synthetic metadata-intensive tests, even with standard NFS servers.

On one source of latency in NFSv4 client

Длительность миграции виртуальных серверов в распределенной системе

This paper describes technical details of implementation of PleskFS. PleskFS is a low-latency shared network storage based on the ideas of relaxed consistency and union mount of read-only and read-write branch storages.

Implementation of request switch in PleskFS file system

In this paper we describe an approach to building low latency shared network storage based on multi-layered unification and results of testing a prototype of this type of storage.

https://dl.acm.org/doi/pdf/10.1145/2687233.2687248

Dmitry Irtegov

Papers

About one approach to building low latency network file system

On one source of latency in NFSv4 client

Implementation of request switch in PleskFS file system