According to DOS, since the start of the operational issues on July 20 through July 28, it has issued more than 220,000 nonimmigrant visas globally, but would normally have issued closer to 425,000 nonimmigrant visas in that time period.
In response to the problem, DOS has posted this FAQ.
Information Regarding Ongoing Consular Consolidated Database (CCD) Performance Issues and Steps Taken
The Consular Consolidated Database (CCD) is still performing below its normal operational capacity. However, to give you an idea of the progress we have made, from the start of the operational issues on July 20 through July 28, we issued more than 220000 nonimmigrant visas globally.