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- The electronic letters of invitation for Sadia and Amber have been sent. The hard copies have not arrived yet? They have the other docs (DS2019 etc.) Current plan is for arrival April 1st.
- Zafar received his DS-2019 on Dec 10 (Fri). Applied for visa on Dec 13 (Mon). Interview date was Jan 3, delayed to Jan 24. Visa accepted now await clearance.Still no word No word from the embassy on the visa?. Hope to start mid march.
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PingER
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- We are working on getting pinger2.pl working at Sarawak. The pinger.xml page needs to be fixed, they are looking at it.
- PingER archive site: Ghulam and Farhan have created two ERDs. One is a simple design (three tables, normalized to level 1) and another is a complex design (five tables, normalized to level 3, introduces some redundancy). They have created MySQL databases following both ERDs and have done some stress testing. The simple design is faster to insert data into and load data from.
- Simple design takes 15.4 seconds to write data from 15 files and 12 seconds to read. Complex design takes 18 minutes and 57 seconds to write data from 15 files and 13 seconds to read.
- Simple design is also space efficient. It takes 27 MB of space as compared to 30 MB taken by complex design for writing data from 15 files.
- As suggested by Umar, we should run more analysis before finalizing this. Requested for detailed description on the ERDs in question.
- Some changes suggested by Umar. Ghulam and Farhan will contact Umar and they'll work on the changes:
- (1) The node table does not have NODEDETAILS.
- (2) The data table has both unix epoch and date
- (3) The analysis/summary table should have ticks, instead it has month, day year etc, which I am not sure about... how would this work? I think its wrong. Instead of four columns there should be just one for the tick.
- Ghulam and Farhan are modifying scripts to make them database compatible.
- Les requested to see comparison (space and time complexity) with flat files.
- Faisal is working on a home page for PingER. (Paused)
- PingER Map
- Add nodename and fullname. (done)
- Fix Maximum Minimum values on plot stats (done)
- Add The ability to choose the line thickness (done)
- Chrome is showing lines in weird manner, use Firefox instead.
- Assuming it is easy do not remove a box if one clicks on something else, leave that to be done manually by clicking on the x in the top RH corner
- Add auto ranging
- The ability to save a color range setting
TULIP
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- With the move to the new host Faisal had to get a new cookie to allow scriptroute to run scripts on the PlanetLab infrastructure. Still needs testing.
- DESY has been restored to monitoring and a traceroute site. Faisal will add to the TULIP database.
- Get the MatLab license at SEECS and put up a CGB server using it. Do not have license for MatLab will do on own machines to test and will migrate when have license. Zafar will contact Arshad and Ali. Basically the client will call the reflector with the target. The reflector will return the landmarks and RTTs. The client will then call the CBG/MatLab server with the relevant RTTs, lat/longs etc. Update
- TULIP configured on maggie2. Reflector at SLAC is being used.
- Matlab server is being configured by Bilal for test-bed purposes. This will be on a separate machine to replicate the actual environment.CBG Bilal went to home time after exams, so far changed CBG to integrate into TULIP. Hoped to get to him by end of last week, when he returns meet on Monday. Update
PerfSONAR
Problems were fixed. NTP servers were causing considerable clock delay. Added close-by Stratum 1 NTP servers to solve the problem. Nodes were updated to PerfSONAR version 3.2 (Fedora distro). Nodes however are offline since they were disrupting normal traffic. We are waiting for 10 Mbps dedicated connection to switch the nodes back on. - Update
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