All the lines at the URL are stuck at some y (fake and/or outdated) since some weeks.
Moreover, the spoofed host "client side" now doesn't show any graph at all: https://ganglia.wikimedia.org/latest/?c=Miscellaneous%20eqiad&h=client-side&m=cpu_report&r=hour&s=by%20name&hc=4&mc=2
Version: unspecified
Severity: normal
URL: https://ganglia.wikimedia.org/latest/graph.php?r=month&z=xlarge&title=&vl=&x=&n=&hreg[]=client-side&mreg[]=eventlogging>ype=line&glegend=show&aggregate=1&embed=1&_=1378369345031