Sugarchain Yumekawa

The meaning of Yumekawa

Sugarchain's first node software is called Yumekawa (夢川). It can be translated in some ways.

"Yume (夢)" means dream and "Kawa (川)" means river. So its Dream River in japanese.
The second letter "Kawa" stands for "Kawaii (可愛い)". In this case the meaning is Dreamy Cute.
Also Yumekawa is replaces the word Core (ie: Bitcoin Core). We think it sounds a bit centralized.

License

Sugarchain Yumekawa is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Minimum Requirement

CPU: 1 Core
RAM: 1024 MB (at least 2048 MB swap)
DISK: 3 GB

Depends on Bitcoin Core

Exactly the same as dependencies of Bitcoin Core v0.16.3.

sudo add-apt-repository -y ppa:bitcoin/bitcoin && \
sudo apt-get update && \
sudo apt-get install -y \
software-properties-common libdb4.8-dev libdb4.8++-dev \
build-essential libtool autotools-dev automake pkg-config \
libssl-dev libevent-dev bsdmainutils libboost-all-dev \
libminiupnpc-dev libzmq3-dev libqt5gui5 libqt5core5a \
libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev \
protobuf-compiler libqrencode-dev help2man

Build

Make

git clone https://github.com/sugarchain-project/sugarchain.git && \
cd sugarchain && \
./autogen.sh && \
./configure && \
make -j$(nproc) && \
make check -j$(nproc)

(optional) Reduce binary size using strip (about 90% file size reduction)

strip ./src/sugarchain-cli && \
strip ./src/sugarchaind && \
strip ./src/qt/sugarchain-qt && \
strip ./src/sugarchain-tx && \
strip ./src/test/test_sugarchain

(optional) After bump version on configure.ac, update binary docs (manpages) using help2man .1 files

make -j$(nproc) && ./contrib/devtools/gen-manpages.sh

(optional) build for Windows and OSX you may need --disable-shared option with make.
(optional) Add seeds/nodes from DNSSEED
https://github.com/sugarchain-project/sugarchain/tree/master-v0.16.3/contrib/seeds

Unit Test

All Sugarchain Yumekawa developers should execute this unit test. Some updates may break these tests in some occasions.

Test All

./src/test/test_sugarchain test_bitcoin --log_level=test_suite

(optional) Test Partially: ie blockencodings_tests

./src/test/test_sugarchain test_bitcoin --log_level=test_suite --run_test=blockencodings_tests

(optional) Test QT (GUI)

./src/qt/test/test_sugarchain-qt

Run

The options -rpcuser, -rpcpassword, and -printtoconsole are optional. server=1 needed by RPC servers or cpuminer when solo-mining.

Mainnet: debug mode: pow for PoW

./src/qt/sugarchain-qt -server=1 -rpcuser=rpcuser -rpcpassword=rpcpassword -debug=pow -printtoconsole
Mainnet: debug mode: net for Network

./src/qt/sugarchain-qt -server=1 -rpcuser=rpcuser -rpcpassword=rpcpassword -debug=net -printtoconsole
Testnet

./src/qt/sugarchain-qt -testnet
Regtest

./src/qt/sugarchain-qt -regtest
Reference
https://en.bitcoin.it/w/index.php?title=Running_Bitcoin&oldid=66644

CLI

Mainnet: getblockcount for counting blocks

./src/sugarchain-cli -rpcuser=rpcuser -rpcpassword=rpcpassword getblockcount

Known Issues

Transaction too large:
- This is a part of BTC.
- It will be fixed in next Schnorr Signature update.
Slow update balance on wallet:
- Update total balance every minute (12 blocks) interval.
- This slow is a part of BTC.
- This fix is a (nice) workaround for now. source
Poor performance on ARM CPUs (32/64-Bit):
- ARM optimization for Yespower disabled for now.
- TODO
Poor performance on 32-Bit OS:
- SSE2 for Yespower disabled for now. source
- Please use 64-bit for best performance.

Release process using GITIAN

All Sugarchain Yumekawa developers should do following GITIAN release process. It's the safest way to distribute binaries to people.
Please use GITIAN release with checking PGP signature, or compile it yourself on your own machine.

https://gist.github.com/cryptozeny/3501c77750541208b9dd1a9e9719fc53

decryp2kanon/sugarchain