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Attendees
Invitees:
Hassaan Khaliq?, Kashif, Raja, Samad Riaz (SEECS); Johari?, Nara, Adnan Khan (UNIMAS); Abdullah, Badrul, Anjum, Ridzuan, Ibrahim (UM); Hanan, Saqib (UTM); Adib?, Fatima (UUM)?; Fizi Jalil (MYREN)?; Thiago+, Les+, Bebo+ (SLAC)
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When Christiane made the estimation of PingER triples, she wrote two documents that explain the process but they were in Portuguese. She has wrtitten written the wrote new versionsin versions in English.
- Counting PingER Measurements: https://www.dropbox.com/s/35itp7v6yasy3rb/Counting%20PingER%20Measurements%20_EnglishVersion.docx?dl=0
- PingER LOD Triples: https://www.dropbox.com/s/4oj5jqupwbujja5/PingERLOD%20Triples%20_EnglishVersion.docx?dl=0
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Badrul reports 6/28/2015: "pinger.fsktm.um.edu.my 103.18.2.152 (unable to gather data since June 26th 2015) currently has a problem with the ISP. We just changed to a new ISP last Friday and we are working on solving the problem. Also www.um.edu.my is not pingable. Anjum reports that it is old and needs replacing."
Ibrahim had downloaded PingER in Zip files format, however, when he stored them in the Hadoop distributed file system (HDFS) and try to process them, the file got corrupted, so he had to extract the file, but one file zip has more than 10000 zip files with small size. So he is trying to create a mapreduce job which can accept zip format, that will save lot of his time. Currently mapreduce can only read from files like .txt, and any doc file format or database. He will have meeting with Dr. Anjum on 11 of june asking for advice and seeking of how we can work on this together. Renan reports: "I had a similar experience. HDFS works better with bigger files rather than many small files. What I did was to create a Map-Reduce job to reduce all those thousands of small files into only 17 big files, each of them containing all data for a given year [1998-2014].I didn't use Hadoop MapReduce for this, though. I used a different dataflow distributed engine that also implements map and reduce operators. I am working on providing Thiago these 17 big files. Once he gets the data, he can share them with you and explain how the data on each file are stored".
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Saqib points out a number of Malaysian routes are IPv6 which could have problems for traceroute. Saqib is checking
MYREN
No update 6/3/2015
Fizi reports that the MYREN PingER host at UTM was reported down on 22 March, it came back up again the next day.
He has been reading up about the PingER project.
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pingersonar-um.myren.net.my is down since may 31st.
Fizi had some problems with tracepath in https://perfsonar.myren.net.my/toolkit/gui/reverse_traceroute.cgi?function=tracepath. He has fixed it by changing the initial MTU.
NUST
| Host | Time PDT |
|---|---|
pinger.uob.edu.pk | Apr 8, 11:01am, Apr 11, 11:00am |
pinger.isra.edu.pk | Apr 25, 12:58am Apr 6, 1:04am Apr 4, 1:02am |
List of Hosts Status Comments
Current status of Pakistani Hosts 6/3/2015.
| Pingable
| Pingable
| now
| pingerfjwu
|
In addition pinger.isra.edu.pk does not respond by name.
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