Rust Native Storage Library

Fetch

cd ~
git clone https://github.com/second-state/rust_native_storage_library.git

Build

cd ~/rust_native_storage_library
make

Output

Creates an executable dynamic library at the following location

~/rust_native_storage_library/target/debug/librust_native_storage_library.so

Compiles and links the C++ code (main.cpp), the header file test_lib.h and the Rust code lib.rs and provides an executable called run_test_demonstration

Run example C++ implementation (test demonstration)

./run_test_demonstration

This test demonstration produces the following output (stores and loads from RocksDB)

Starting main function ...
i64 variable as integer: 1234567111
i64 variable as string: 1234567111
i64 variable as char: 1234567111
i32 variable as integer: 1234567111
i32 variable as string: 1234567111
i32 variable as char: 1234567111
Calling store data ... 
Storing data, please wait ...
Database path: "/media/nvme/ssvm_database"
Database instance: RocksDB { path: "/media/nvme/ssvm_database" }
Item added to database
Calling load data ... 1234567111
Loading data, please wait ...
Retrieved the following string: 1234567111

Building a machine to run this library

The following is a list of tasks which will result in you having a machine which is fully equiped to deploy this storage library application.

Creating a machine on which to deploy this (and the SSVM runtime on)

The following included information about creating a new machine, additional storage, RockDB database installation and more ...

Setting up a machine and OS

This installation uses the AWS i3.xlarge instance because it has a solid state hard drive which is large enough

i3.xlarge ($0.374 per Hour)
1 x 950 NVMe SSD Storage
4 CPU
30.5 GB RAM

Software (OS)

sudo apt-get update
sudo apt-get -y upgrade
sudo apt-get install -y build-essential

Auxillary hardware

View NVMe volume (which is not yet mounted/mapped/formatted)

lsblk

There is a ~300Gb drive with the name of nvme0n1

nvme0n1     259:2    0 279.4G  0 disk

Create a file system

sudo mkfs -t ext4 /dev/nvme0n1

Part of the output from the above mkfs command will include the Filesystem UUID. Cut and paste this UUID because it will be used in an upcoming command.

Filesystem UUID: 6f6177fe-947a-46a2-b593-c36dfaaa8407

Create an easily accesible mount point on the main drive (where the operating system runs) and then set the permissions of this mount point to the ubuntu user.

sudo mkdir /media/nvme
sudo chown -R ubuntu:ubuntu /media/nvme/

Ensure that this drive is mounted each time the system is restarted. Add this line to the /etc/fstab file (remember the UUID from the previous step?).

UUID=553acce1-4e42-4ea3-85da-c57ed3dd82b5 /media/nvme ext4 defaults 0 0

Once the above commands have succeeded, reboot the instance.

sudo shutdown -r now

After the reboot, see the mounted ~300Gb NVMe SSD using the df command

df -h
/dev/nvme0n1    275G   65M  260G   1% /media/nvme

#ensure that the /media/nvme directory is owned by ubuntu by typing ls -la /media/nvme If it is not then type the following command
sudo chown -R $USER:$USER /media/nvme/

Create directory for database

mkdir /media/nvme/ssvm_database
sudo chown -R $USER:$USER /media/nvme/ssvm_database

Install system requirements

sudo apt-get -y install devscripts debhelper build-essential fakeroot zlib1g-dev libbz2-dev libsnappy-dev libgflags-dev libzstd-dev make clang pkg-config libssl-dev

Install RocksDB

Installing database (RocksDB)

From original source (recommended)

git clone https://github.com/facebook/rocksdb.git
cd rocksdb
make -j6 shared_lib

Or, Using third-party script

git clone https://github.com/ulikoehler/deb-buildscripts.git
cd deb-buildscripts
./deb-rocksdb.py

Extra information (no action required)

Configure RocksDB - this (setting the data dir and options) is all done in the source code, as per the example below. There is nothing to do here ... please move to the next section.

let path = "/media/nvme/ssvm_database";
let db = DB::open_default(path).unwrap();
let mut opts = Options::default();
opts.increase_parallelism(3);
opts.create_if_missing(true);