All,
I don't know C all that well, so I need some assistance.
what are the limits/constraints of RRDIDX for graphing?
I believe the answer is buried somewhere in hobbitgraph.c
Here is my test case:
I had:
sar,cpu0.rrd sar,cpu1.rrd sar,cpu2.rrd sar,cpu3.rrd ... sar,cpu10.rrd sar,cpu11.rrd ... sar,cpu15.rrd
hobbitgraph.cfg:
[sar] FNPATTERN sar,(.*).rrd TITLE CPU sar YAXIS % DEF:usr at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntusr:AVERAGE DEF:sys at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntsys:AVERAGE DEF:wio at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntwio:AVERAGE DEF:idl at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntidl:AVERAGE AREA:usr at RRDIDX@#0000FF:@RRDPARAM at pcntusr GPRINT:usr at RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:usr at RRDIDX@:MAX: \: %5.1lf (max) GPRINT:usr at RRDIDX@:MIN: \: %5.1lf (min) GPRINT:usr at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n STACK:sys at RRDIDX@#FF0000:@RRDPARAM at pcntsys GPRINT:sys at RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:sys at RRDIDX@:MAX: \: %5.1lf (max) GPRINT:sys at RRDIDX@:MIN: \: %5.1lf (min) GPRINT:sys at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n STACK:wio at RRDIDX@#800080:@RRDPARAM at pcntwio GPRINT:wio at RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:wio at RRDIDX@:MAX: \: %5.1lf (max) GPRINT:wio at RRDIDX@:MIN: \: %5.1lf (min) GPRINT:wio at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n STACK:idl at RRDIDX@#008000:@RRDPARAM at pcntidl GPRINT:idl at RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:idl at RRDIDX@:MAX: \: %5.1lf (max) GPRINT:idl at RRDIDX@:MIN: \: %5.1lf (min) GPRINT:idl at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
hobbitserver.cfg has sar::1 (to only draw 1 graph per cpu) for GRAPHS, and just regular "sar" is in TEST2RRD
sar is in the "multitest" section of hobbitcgi.cfg, as well as listed in the extra tests section of hobbitlaunch.cfg
On a host with 4 CPU's (0,1,2,3) it draws 4 graphs On a host with 16 CPU's (0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15) It would draw a graph for 0,1, and broken boxes for 2,3, and no others.
SO, I removed "10,11,12,13,14,15" and outputted them to a,b,c,d,e,f respectively.
The graphs then drew 0,1,2,3 and no more.
If I click on a specific graph, and change the "first=" to 5, it will draw a graph for CPU4, so somewhere, the first= line isn't getting generated correctly.
So I guess 2 questions:
1 already stated (limitations of RRDIDX - does is get confused by 1 vs 10 for example) The other is where the first= line gets updated and why isn't it getting updated correctly?
Any insights would be much apprieciated, as this is driving me nuts.
Thanks, Jeff