DL%20Template

1
UK Network Monitoring
GGF9 5-8th October 2003
2
Contents

• GridMon UK e-Science toolkit
• Plug n Play multi-domain monitoring
• Questions

3

• design and deploy an infrastructure for network
  performance monitoring within the UK e-Science
  community.
• European Data Grid derivative, focusing on
• Publication to humans and Grid middleware
• End-to-end performance (what users see)

Tool (more to follow) Metric/DAMED event
IperfER bandwidth.achievable.TCP.singleStream
PingER (TCP) loss.oneWay (TCP) delay.roundTrip
UDPmon bandwidth.achievable.UDP.singleStream (UDP) loss.oneWay (UDP) delay.jitter
4
GridMon web service
Opens up data to others Starting point for Grid services
5
GridMon the TAKE

• Crying out for an agreed schema to help answer
  our questions
• Need to retire the flat file structure. Something
  relational would allow more complex searches
  (e.g. NMWGs own examples) to be performed
  (probably quicker). Conversion from flat file to
  DB raises some questions.
• Were creating a DB from scratch, so we don't
  have exisiting format. Do we use this as an
  opportunity to define a structure to fit in with
  the NMWG profiles and schema? If so, is there an
  optimum design?
• Do we use a relational database at all? Would we
  be better using an XML database?
• Being able to publish data in an agreed format is
  cool, but dont we also need a agreed way of
  advertising what data we have and what tests we
  can run? If so, how?
• TIES IN WITH
• Were heading towards a unified method of
  publishing data. Do we also need a unifed way of
  asking for it?
• Do we need to say I want loss.oneWay OR can we
  get away with asking whats available and making
  a decision based on the answer?
• How far will OGSA/OGSI go to solving this problem
  for us?

6
GridMon the GIVE
GridMon is an existing infrastructure with
historic data. ANSWER those questions! Could be
used as a testbed for developing schema based
web/Grid services. Test the Schema Could test
suitability identify any missing components,
e.g. try implementing NMWG example queries.
7
PnP multi-domain monitoring

• Plug n Play collaboration UCL and DL.
• BIG thanks to Internet2s piPEs, and Dante
• ADI major component
• Provide generic abstraction for users (whether
  human or machine) additional layer, or wrapper

8
PnP multi-domain monitoring
PnP to be implemented
Client
9
Conclusion

• GridMon PnP ready to test schema and answer
  some questions

10

• Questions
• m.j.leese_at_dl.ac.uk http//gridmon.dl.ac.u
  k/mjl

? ? ? ? ?