Overview: Performance stats collected from the Glade IB switch.
| Item | Description |
|---|---|
| Horizontal Axis | time stamp |
| Vertical Axis | bytes per second (units will auto-adjust) |
| In | traffic into switch ports |
| Out | traffic out of switch ports |
| In Legend | current traffic, traffic over last interval, ave traffic per sec over interval |
| Out Legend | current traffic, traffic over last interval, ave traffic per sec over interval |
This data is collected by a script running "perfquery" running on glademgt1. It runs against the switch ports on the Glade IB switch and aggregates this data into "clusters". So "in" shows traffic received by the switch ports sent from the NSDs, for example. NSD writes = switch port reads
Additional processing within Ganglia ....