defichain-electrumx's Introduction

DeFiChain ElectrumX - Reimplementation of electrum-server

Licence

MIT

Language

Python (>= 3.8)

Original Author

Neil Booth

This project is a fork of spesmilo/electrumx with expanded features to work with DeFiChain. Refer to defichain-electrum for integration.

DeFiChain ElectrumX allows users to run their own DeFiChain Electrum server. It connects to your full node and indexes the blockchain, allowing efficient querying of the history and DeFiChain token balance of arbitrary addresses. The server can be exposed publicly, and joined to the public network of servers via peer discovery.

Documentation

DeFiChain ElectrumX is using identical dependencies as upstream. See original documentation readthedocs for setup detail.

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defichain-electrumx's Issues

Server health status monitoring

What to be added?

API server status
web socket server status
service down notification

Why?

Alert
Data recovery

Service crash: DB cursor counter overflow

Background:

Oct 14 15:49:52 electrum-server electrumx_server[1354572]:   File "/home/ubuntu/.local/lib/python3.8/site-packages/electrumx/server/block_processor.py", line 356, in flush
Oct 14 15:49:52 electrum-server electrumx_server[1354572]:     self.db.flush_dbs(self.flush_data(), flush_utxos,
Oct 14 15:49:52 electrum-server electrumx_server[1354572]:   File "/home/ubuntu/.local/lib/python3.8/site-packages/electrumx/server/db.py", line 244, in flush_dbs
Oct 14 15:49:52 electrum-server electrumx_server[1354572]:     self.flush_history()
Oct 14 15:49:52 electrum-server electrumx_server[1354572]:   File "/home/ubuntu/.local/lib/python3.8/site-packages/electrumx/server/db.py", line 313, in flush_history
Oct 14 15:49:52 electrum-server electrumx_server[1354572]:     self.history.flush()
Oct 14 15:49:52 electrum-server electrumx_server[1354572]:   File "/home/ubuntu/.local/lib/python3.8/site-packages/electrumx/server/history.py", line 160, in flush
Oct 14 15:49:52 electrum-server electrumx_server[1354572]:     flush_id = pack_be_uint16(self.flush_count)
Oct 14 15:49:52 electrum-server electrumx_server[1354572]: struct.error: 'H' format requires 0 <= number <= 65535
Oct 14 15:49:52 electrum-server systemd[1]: electrumx.service: Succeeded.

related to spesmilo#88
Unable to flush history due to DB cursor counter > 64k