Como posso ratelimit znapzend?

Question

Estou usando o znapzend para fazer alguns backups e infelizmente está inundando minha conexão gigE. Eu gostaria da habilidade de ratificar o znapsend. Algo como:

zfs send | pv -L 200m | ssh $ host zfs recv

Alguma sugestão?

    

Answer 1

Você pode tentar limitar o mbuffer , que o znapzend usa:

-r <rate> : limit read rate to <rate> B/s, where <rate> can be given in b,k,M,G

Você pode precisar alias do próprio executável mbuffer se não puder ser feito pelo arquivo de configuração:

# initially (for testing, I believe this is only for the current shell):
alias /usr/bin/mbuffer-limited="/usr/bin/mbuffer -r 10M"

# in znapzendzetup:
[...] --mbuffer=/usr/bin/mbuffer-limited [...]

Você também pode adicionar uma solicitação de recurso na página do Github, ela pode ser implementada.

    

Answer 2

Veja Introdução ao controle de tráfego do Linux . Como alternativa, você poderia priorizar seu tráfego em vez de limitar a taxa, para que você ainda obtenha backups rápidos.

link

Linux offers a very rich set of tools for managing and manipulating the transmission of packets. The larger Linux community is very familiar with the tools available under Linux for packet mangling and firewalling (netfilter, and before that, ipchains) as well as hundreds of network services which can run on the operating system. Few inside the community and fewer outside the Linux community are aware of the tremendous power of the traffic control subsystem which has grown and matured under kernels 2.2 and 2.4.

This HOWTO purports to introduce the concepts of traffic control, the traditional elements (in general), the components of the Linux traffic control implementation and provide some guidelines . This HOWTO represents the collection, amalgamation and synthesis of the LARTC HOWTO, documentation from individual projects and importantly the LARTC mailing list over a period of study.

The impatient soul, who simply wishes to experiment right now, is recommended to the Traffic Control using tcng and HTB HOWTO and LARTC HOWTO for immediate satisfaction.