perfSONAR User Q&A and Other Discussion

[Brian Candler <>]

I think I've found a bug in maddash, but I'd like to run it past the 
user group first.

I configured a mesh like this:

<group ext_group>
    type       disjoint

    a_member   baz
    a_member   foo
    a_member   qux

    b_member   baz
    b_member   foo
    b_member   qux
    b_member   bar   # beacon
</group>

The tests are defined with force_bidirectional 1.  baz, foo and qux are 
full perfsonar nodes which consume the mesh config, while bar is a 
standalone "beacon" just running owampd and bwctld.

[Aside: the reason for doing this was to get a simpler display than 
having two meshes: that is, a full mesh between (baz,foo,qux), and a 
separate disjoint mesh between (baz,foo,qux) and (bar)]

So anyway, I get a display like this as expected:

    bar baz foo qux
baz  =       =   =
foo  =   =       =
qux  =   =   =

Now, there are two squares which intercept between (say) foo and qux, 
and qux and foo, each with a top/bottom half measurement.

    bar baz foo qux
baz  =       =   =
foo  =   =      [2]
qux  =   =  [1]

I was expecting that if I click on the top half of one square I would 
get the measurements taken and stored on foo, and if I click on the 
bottom half of the other square I would get the corresponding 
measurements taken and stored on qux.

However, what's happening is as follows.

* One click shows a page entitled "foo to qux (Throughput Reverse)" and 
the other says "qux to foo (Throughput)". This is fine.

* However the two graphs I see are clearly the *same* graph, by looking 
at the datapoints themselves.

* Furthermore, if I click on "Link to this chart", both charts show

url=http://qux/esmond/perfsonar/archive&source=qux&dest=foo&;...

I was expecting them to be different, i.e.

url=http://qux/esmond/perfsonar/archive&source=qux&dest=foo&;...
url=http://foo/esmond/perfsonar/archive&source=qux&dest=foo&;...

Can you confirm this is a bug, or do you need more information to 
reproduce it?

Thanks,

Brian Candler.