mirror of https://github.com/dragonflydb/dragonfly.git synced 2025-03-14 10:01:52 +00:00

Roman Gershman 77b9a8f699 chore: introduce DEBUG COMPRESSION (#4620 )

This function analyzes the compressability of the keys
using a single huffman tree. For example,

```
>debug POPULATE 1000000 keyabcdef 10
OK

> debug compression
 1) max_symbol
 2) (integer) 121
 3) max_bits
 4) (integer) 5
 5) raw_size
 6) (integer) 7861817
 7) compressed_size
 8) (integer) 4372270
 9) ratio
10) "0.5561398847111297"
```

Signed-off-by: Roman Gershman <roman@dragonflydb.io>

2025-03-02 21:29:19 +02:00

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Build DragonflyDB From Source

Running the server

Dragonfly runs on linux. We advise running it on linux version 5.11 or later but you can also run Dragonfly on older kernels as well.

⚠️ Dragonfly releases are compiled with LTO (link time optimization): Depending on the workload this can notably improve performance. If you want to benchmark Dragonfly or use it in production, you should enable LTO by giving blaze.sh the -DCMAKE_CXX_FLAGS="-flto" argument.

Step 1 - install dependencies

On Debian/Ubuntu:

sudo apt install ninja-build libunwind-dev libboost-context-dev libssl-dev \
     autoconf-archive libtool cmake g++ bison  zlib1g-dev

On Fedora:

sudo dnf install -y automake boost-devel g++ git cmake libtool ninja-build \
     openssl-devel libunwind-devel autoconf-archive patch bison libstdc++-static

On openSUSE:

sudo zypper install automake boost-devel gcc-c++ git cmake libtool ninja \
     openssl-devel libunwind-devel autoconf-archive patch bison \
     libboost_context-devel libboost_system-devel

On FreeBSD:

pkg install -y git bash cmake ninja libunwind boost-libs autoconf automake libtool gmake bison

Step 2 - clone the project

git clone --recursive https://github.com/dragonflydb/dragonfly && cd dragonfly

Step 3 - configure & build it

# Configure the build
./helio/blaze.sh -release

# Build
cd build-opt && ninja dragonfly

Step 4 - voilà

# Run
./dragonfly --alsologtostderr

Dragonfly DB will answer to both http and redis requests out of the box!

You can use redis-cli to connect to localhost:6379 or open a browser and visit http://localhost:6379

Step 5

Connect with a redis client

redis-cli
127.0.0.1:6379> set hello world
OK
127.0.0.1:6379> keys *
1) "hello"
127.0.0.1:6379> get hello
"world"
127.0.0.1:6379>

Step 6

Continue being great and build your app with the power of DragonflyDB!

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