'Update counters for system, version and release attributes.'

def ProcessClient(self, client):

    ping = client.Get(client.Schema.PING)
    if (not ping):
        return
    system = client.Get(client.Schema.SYSTEM, 'Unknown')
    uname = client.Get(client.Schema.UNAME, 'Unknown')
    for label in self.GetClientLabelsList(client):
        self.counters[0].Add(system, label, ping)
        self.counters[1].Add(uname, label, ping)
