Weekly Tech Update.

In the run-up to the testnet launch, we keep working on node stability and network security.

2 min readJun 22, 2021

Debugged and investigated the devnet nodes stay on different PBFT rounds issue, found that the boot node1 has 0 peers to connect.
Debugged and investigated the testnet nodes database. Downloaded the boot node1 database and pulled out all votes columns, wrote the script to analyze the votes information.
Fixed the build issue in Mac OS.
Refactored and fixed the network unit test transfer_transaction.
Debugged the bootstrapping nodes syncing PBFT blocks out of order issue that caused the syncing stuck issue.
Fixed the removing duplicate PBFT synced blocks verification.
Debugged and investigated the testnet memory drained issue: found when nodes want to send oversize PBFT block, the nodes’ memory gets drained shortly.

Migrated the unique indexes to MongoDB models.
UI changes on the Contact, Person, and Project pages to populate references.
Controller and model changes, adding the collection’s new explanatory field names.
Working on several fixes for the Telegram bot: adding the error handler mechanism to avoid shutting down when some required data is not available from the API.
Improved error Handling on BE.
Continued to refactor the usages of the models in the BE controllers.
Created a new branch MySQL-model-removal for the final cleanup.