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A distributed storage system for cloud native applications to separate storage from compute.
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README.md

ChubaoFS

Build Status LICENSE Language Go Report Card Docs FOSSA Status CII Best Practices

Overview

ChubaoFS (储宝文件系统 in Chinese) is a distributed file system and object storage service for cloud native applications. It is hosted by the Cloud Native Computing Foundation (CNCF) as a sandbox project.

ChubaoFS has been commonly used as the underlying storage infrastructure for online applications, database or data processing services and machine learning jobs orchestrated by Kubernetes. An advantage of doing so is to separate storage from compute - one can scale up or down based on the workload and independent of the other, providing total flexibility in matching resources to the actual storage and compute capacity required at any given time.

Some key features of ChubaoFS include:

  • Scale-out metadata management

  • Strong replication consistency

  • Specific performance optimizations for large/small files and sequential/random writes

  • Multi-tenancy

  • POSIX-compatible and mountable

  • S3-compatible object storage interface

We are committed to making ChubaoFS better and more mature. Please stay tuned.

Document

https://chubaofs.readthedocs.io/en/latest/

https://chubaofs.readthedocs.io/zh_CN/latest/

Benchmark

Small file operation performance and scalability benchmark test by mdtest.

File Size (KB) 1 2 4 8 16 32 64 128
Creation (TPS) 70383 70383 73738 74617 69479 67435 47540 27147
Read (TPS) 108600 118193 118346 122975 116374 110795 90462 62082
Removal (TPS) 87648 84651 83532 79279 85498 86523 80946 84441
Stat (TPS) 231961 263270 264207 252309 240244 244906 273576 242930

Refer to chubaofs.readthedocs.io for performance and scalability of IO and Metadata.

Build Server and Client

$ git clone http://github.com/chubaofs/chubaofs.git
$ cd chubaofs
$ make

If the build succeeds, cfs-server and cfs-client can be found in build/bin

Deploy ChubaoFS Cluster with Helm in Kubernetes

The chubaofs-helm repository can help you deploy ChubaoFS cluster quickly in containers orchestrated by kubernetes. Kubernetes 1.16+ and Helm 3 are required.

Initialize Helm:

$ helm init

Add repository to download Helm chart of ChubaoFS:

$ helm repo add chubaofs https://chubaofs.github.io/chubaofs-charts
$ helm repo update

Create the configuration file chubaofs.yaml and put it in a user-defined path.

$ cat ~/chubaofs.yaml 
path:
  data: /chubaofs/data
  log: /chubaofs/log

datanode:
  disks:
    - disk: "/data0:21474836480"
    - disk: "/data1:21474836480"
      
metanode:
  total_mem: "2147483648"

Note that chubaofs-helm/chubaofs/values.yaml includes all the parameters of ChubaoFS. Parameters path.data and path.log define paths to store the data and logs of ChubaoFS server, respectively.

Label the nodes in Kubernetes according to different roles(master/metanode/datanode):

$ kubectl label node <nodename> chuabaofs-master=enabled
$ kubectl label node <nodename> chuabaofs-metanode=enabled
$ kubectl label node <nodename> chuabaofs-datanode=enabled

Install ChubaoFS cluster with Helm:

$ helm install chubaofs chubaofs/chubaofs --version 1.5.0 -f ~/chubaofs.yaml

Delete ChubaoFS cluster:

$ helm delete chubaofs

Refer to chubaofs-helm for deployment with Helm 2 and deployment of monitoring system.

Deploy ChubaoFS Cluster with Docker

A helper tool called run_docker.sh (under the docker directory) has been provided to run ChubaoFS with docker-compose.

$ docker/run_docker.sh -r -d /data/disk

Note that /data/disk can be any directory but please make sure it has at least 10G available space.

To check the mount status, use the mount command in the client docker shell:

$ mount | grep chubaofs

To view grafana monitor metrics, open http://127.0.0.1:3000 in browser and login with admin/123456.

To run server and client separately, use the following commands:

$ docker/run_docker.sh -b
$ docker/run_docker.sh -s -d /data/disk
$ docker/run_docker.sh -c
$ docker/run_docker.sh -m

For more usage:

$ docker/run_docker.sh -h

License

ChubaoFS is licensed under the Apache License, Version 2.0. For detail see LICENSE and NOTICE.

FOSSA Status

Reference

Haifeng Liu, et al., CFS: A Distributed File System for Large Scale Container Platforms. SIGMOD‘19, June 30-July 5, 2019, Amsterdam, Netherlands.

For more information, please refer to https://dl.acm.org/citation.cfm?doid=3299869.3314046 and https://arxiv.org/abs/1911.03001

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