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sdfs

What is this?

A deduplicated file system that can store data in object storage or block storage.

License

GPLv2

Requirements

System Requirements

1. x64 Linux Distribution. The application was tested and developed on ubuntu 18.04
2. At least 8 GB of RAM
3. Minimum of 2 cores
4. Minimum of 16GB or Storage

Optional Packages

* Docker

Installation

Ubuntu/Debian (Ubuntu 14.04+)

Step 1: Download the latest sdfs version
	wget http://opendedup.org/downloads/sdfs-latest.deb

Step 2: Install sdfs and dependencies
	sudo apt-get install fuse libfuse2 ssh openssh-server jsvc libxml2-utils
	sudo dpkg -i sdfs-latest.deb
	 
Step 3: Change the maximum number of open files allowed
	echo "* hard nofile 65535" >> /etc/security/limits.conf
	echo "* soft nofile 65535" >> /etc/security/limits.conf
	exit
Step 5: Log Out and Proceed to Initialization Instructions

CentOS/RedHat (Centos 7.0+)

Step 1: Download the latest sdfs version
	wget http://opendedup.org/downloads/sdfs-latest.rpm

Step 2: Install sdfs and dependencies
	yum install jsvc libxml2 java-1.8.0-openjdk
	rpm -iv --force sdfs-latest.rpm
	 
Step 3: Change the maximum number of open files allowed
	echo "* hardnofile 65535" >> /etc/security/limits.conf
	echo "* soft nofile 65535" >> /etc/security/limits.conf
	exit
Step 5: Log Out and Proceed to Initialization Instructions

Step 6: Disable the IPTables firewall

	service iptables save
	service iptables stop
	chkconfig iptables off

Step 7: Log Out and Proceed to Initialization Instructions

Docker Usage

Setup

Step 1:

	docker pull gcr.io/hybrics/hybrics:master

Step 2:

	docker run --name=sdfs1 -p 0.0.0.0:6442:6442 -d gcr.io/hybrics/hybrics:master

Step 3:

	wget https://storage.cloud.google.com/hybricsbinaries/hybrics-fs/mount.sdfs-master
	sudo mv mount.sdfs-master /usr/sbin/mount.sdfs
	sudo chmod 777 /usr/sbin/mount.sdfs
	sudo mkdir /media/sdfs

Step 4:
	sudo ./mount.sdfs -d sdfs://localhost:6442 /mnt

Docker Parameters:

Envronmental Variable Description Default
CAPACITY The Maximum Phyiscal Capacity of the volume. This is Specified in GB or TB 100GB
TYPE The type of backend storage. This can be specified as AZURE, GOOGLE, AWS, BACKBLAZE. If none is specified local storage is used. local storage
URL The url of for the oject storage used None
BACKUP_VOLUME If set to true, the sdfs volume will be setup for deduping archive data better and faster. If not set it will default to better read/write access for random IO false
GCS_CREDS_FILE The location of a GCS creds file for authicating to Google cloud storage and GCP Pubsub. Will be required for Google Cloud Storage and GCP Pubsub access. None
ACCESS_KEY S3 or Azure Access Key None
SECRET_KEY The S3 or Azure Secret Key used to Access object storage None
AWS_AIM If set to true AWS AIM will be used for access false
PUBSUB_PROJECT The project where the pubsub notification should be setup for file changes and replication None
PUBSUB_CREDS_FILE The credentials file used for pubsub creation and access with GCP. If not set GCS_CREDS_FILE will be used. None
DISABLE_TLS Disable TLS for api access is set to true false
REQUIRE_AUTH Whether to require authication for access to the sdfs APIs false
PASSWORD The password to use when creating the volume admin
EXTENDED_CMD Any addition command parameters to run during creation None

Docker run examples

Optimize usage running using local storage:

sudo mkdir /opt/sdfs1
sudo docker run --name=sdfs1 --env CAPACITY=1TB --volume /home/A_USER/sdfs1:/opt/sdfs -p 0.0.0.0:6442:6442 -d gcr.io/hybrics/hybrics:master

Optimize usage running using Google Cloud Storage:

sudo mkdir /opt/sdfs1
sudo docker run --name=sdfs1 --env BUCKET_NAME=ABUCKETNAME --env TYPE=GOOGLE --env=GCS_CREDS_FILE=/keys/service_account_key.json --env=PUBSUB_PROJECT=A_GCP_PROJECT --env CAPACITY=1TB --volume=/home/A_USER/keys:/keys --volume /home/A_USER/sdfs1:/opt/sdfs -p 0.0.0.0:6442:6442 -d gcr.io/hybrics/hybrics:master

Build Instructions

Linux Version Must be build from a Linux System and Windows must be build from a Windows System

Linux build Requirements:
	1. Docker
	2. git 

Docker Build Steps	
```bash
git clone https://github.com/opendedup/sdfs.git
cd sdfs
git fetch
git checkout -b master origin/master
#Build image with packages
docker build -t sdfs-package:latest --target build -f Dockerbuild.localbuild .
mkdir pkgs
#Extract Package
docker run --rm sdfs-package:latest | tar --extract --verbose -C pkgs/
#Build docker sdfs container
docker build -t sdfs:latest -f Dockerbuild.localbuild .
```

Initialization Instructions for Standalone Volumes

Step 1: Log into the linux system as root or use sudo

Step 2: Create the SDFS Volume. This will create a volume with 256 GB of capacity using a Variable block size.
	**Local Storage**
	sudo mkfs.sdfs --volume-name=pool0 --volume-capacity=256GB

	**AWS Storage**
	sudo mkfs.sdfs --volume-name=pool0 --volume-capacity=1TB --aws-enabled true --cloud-access-key <access-key> --cloud-secret-key <secret-key> --cloud-bucket-name <unique bucket name>
	
	**Azure Storage**
	sudo mkfs.sdfs --volume-name=pool0 --volume-capacity=1TB --azure-enabled true --cloud-access-key <access-key> --cloud-secret-key <secret-key> --cloud-bucket-name <unique bucket name>
	
	**Google Storage**
	sudo mkfs.sdfs --volume-name=pool0 --volume-capacity=1TB --google-enabled true --cloud-access-key <access-key> --cloud-secret-key <secret-key> --cloud-bucket-name <unique bucket name>
	
	
Step 3: Create a mount point on the filesystem for the volume

	sudo mkdir /media/pool0

Step 4: Mount the Volume

	sudo mount -t sdfs pool0 /media/pool0/

Set 5: Add the filesystem to fstab
	pool0           /media/pool0    sdfs    defaults                0       0

Troubleshooting and other Notes

Running on a Multi-Node clusting on KVM guest.

By default KVM networking does not seem to allow guest to communicate over multicast. It also doesn't seem to work when bridging from a nic. From my reseach it looks like you have 		to setup a routed network from a KVM host and have all the guests on that shared network. In addition, you will want to enable multicast on the virtual nic that is shared by those 		guest. Here is is the udev code to make this happen. A reference to this issue is found here.

# cat /etc/udev/rules.d/61-virbr-querier.rules 
ACTION=="add", SUBSYSTEM=="net", RUN+="/etc/sysconfig/network-scripts/vnet_querier_enable"

# cat /etc/sysconfig/network-scripts/vnet_querier_enable 
#!/bin/sh
if [[ $INTERFACE == virbr* ]]; then
    /bin/echo 1 > /sys/devices/virtual/net/$INTERFACE/bridge/multicast_querier
fi

Testing multicast support on nodes in the cluster

The jgroups protocol includes a nice tool to verify multicast is working on all nodes. Its an echo tool and sends messages from a sender to a reciever

On the receiver run

	java -cp /usr/share/sdfs/lib/jgroups-3.4.1.Final.jar org.jgroups.tests.McastReceiverTest -mcast_addr 231.12.21.132 -port 45566

On the sender run

	java -cp /usr/share/sdfs/lib/jgroups-3.4.1.Final.jar org.jgroups.tests.McastSenderTest -mcast_addr 231.12.21.132 -port 45566

Once you have both sides running type a message on the sender and you should see it on the receiver after you press enter. You may also want to switch rolls to make sure multicast 		works both directions.

take a look at http://docs.jboss.org/jbossas/docs/Clustering_Guide/4/html/ch07s07s11.html for more detail.

Further reading:

	Take a look at the administration guide for more detail. http://www.opendedup.org/sdfs-20-administration-guide

Ask for Help

	If you still need help check out the message board here https://groups.google.com/forum/#!forum/dedupfilesystem-sdfs-user-discuss