[collectd] Java Plugin : data not graphing due to min / max values

[Jeff Maass]

Starting with the example JMXMemory2.java, I¹ve created a class which sets
the same numeric value to different Type / typeInstance s.  When displayed
in Graphite, only 1 combination graphs the set value.  Why?


The value is set every time to 12.

absolute                value:ABSOLUTE:0:U
‹‹‹‹‹> graphs what looks like a heartbeat, centered on 1.2

counter                 value:COUNTER:U:U
‹‹‹‹‹> graphs 0

derive                  value:DERIVE:0:U
‹‹‹‹‹> graphs 0

gauge                   value:GAUGE:U:U
‹‹‹‹‹> graphs 0

memory                  value:GAUGE:0:281474976710656
‹‹‹‹‹> graphs a straight line of 12

memory2                value:GAUGE:0:281474976710656
‹‹‹‹> graphs a straight line of 12