lib/command/server/bgsave.js
function validate(cmd, args, info) {
  AbstractCommand.prototype.validate.apply(this, arguments);
  if(Persistence.saving) throw SaveInProgress;
}
function validate(cmd, args, info) {
  AbstractCommand.prototype.validate.apply(this, arguments);
  if(Persistence.saving) throw SaveInProgress;
}
function validate ( cmd , args , info ) { AbstractCommand . prototype . validate . apply ( this , arguments ) ; if ( Persistence . saving ) throw SaveInProgress ; }
Validate the BGSAVE command.
Validate the BGSAVE command .