We experienced a server issue on our replica database cluster, causing some data to be out of sync. Need to fully resync from master. Due the size of the data, it will take several hours. No data is lost. We appreciate your understanding and support.
— CZ (@cz_binance) February 8, 2018
CEO Changpeng Zhao, who goes by CZ, informed his followers on Twitter that a malfunction had affected the cryptocurrency exchange‘s replica database server, forcing a full resync from the master. His tweet came shortly after a planned system upgrade announcement, which has since been taken down in the wake of the unforeseen maintenance. Before trading was shut down, users were given a 30-minute window to withdraw orders.
In subsequent tweets addressing the issue, CZ maintained that no data was lost and that regular updates could be expected. The team initially anticipated a 10-hour sync time delay.
sorry guys, not something we want either. We didn’t have a choice, other than trying to fix it as soon as possible for our users. One of our team literally threw up after the calculation arrived at 10 hours. https://t.co/P2YjkYDf9K
— CZ (@cz_binance) February 8, 2018
As time passed, however, the situation became more complicated, forcing the moratorium to be extended. The current estimate for resumption is 8 p.m. PST, Friday, February 9. To some traders, that’s a lifetime.
Due to an unforeseen slowdown in the speed of our data sync, we now estimate for all trading activity to resume at 2018/02/09 4AM (UTC). In the 30 minutes prior to the commencement of trading, users will be able to use utilize all other account related functions. https://t.co/ll1HgPslTU
— binance (@binance_2017) February 8, 2018
At the onset of the trading freeze, rumors of hacking spread across the internet but were vehemently refuted by the company.
I’m sorry but I have received dozens of reports similar to this. Not trying to create FUD, just trying to understand. pic.twitter.com/IfRyLSGU9X
— John McAfee (@officialmcafee) February 8, 2018
Binance users found themselves inadvertently holding during a trading suspension that began on the evening of February 7, 2018.
Binance has seen a surge in growth over the last year and syncing billions of records amounts to no small task. The CEO has said that all other accountfunctionality will be restored 30 minutes before trading is scheduled to resume.
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