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This meeting:  February xx 2020 10 pm Pacific time; a day later 10:00 am Pakistan time; 10:30 am India time; 1:00 pm Malaysian & Guangzhou time;  12:00 pm Thailand time; 7:00 am Jordan and 6:00am Turkey.  

Doodle poll invites sent dd02/mm16/2020

Format

New items and updates are in boldface.

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  •  + Responded via Doodle can attend; - Responded, but unable to attend on this date; ? extra email sent asking if attending 
  • Email addresses (all the following are in pinger-my).The link for the Doodle poll is https://doodle.com/poll/9wc4hxwakqk74wkh
    • cottrell@slac.stanford.edu; wajahat.hussain@seecs.edu.pk; saqibutm@outlook.com; johari.abdullah@gmail.com; adibhabbal@karabuk.edu.tr; charnsak.s@ubru.ac.th; eyadayoubi@gmail.com; b.muslmani@yahoo.com; shadi.jawarneh@yahoo.com; bebo@slac.stanford.edu; umar.kalim@gmail.com; xsaifahmadx@gmail.com
Actual Attendees

Bebo, Les

Use of Zoom

IMPORTANT NOTE: The meeting is set up to record automatically. By joining the meeting you are agreeing to be recorded (see details) 

Roger Cottrell is inviting you to a scheduled Zoom meeting.

Topic: PingER Collaboration meeting 

Join Zoom Meeting
https://zoom.us/j/???????????

Meeting ID: ??? ??? ????

How to set up and use Zoom:

To use the software, you would have to download the Zoom client (and installed if prompted). The instructions to do so are listed here: https://zoom.us/download#client_4meeting

The instructions about setting up the software are listed at the URL below. You may want to create an account if you do not have one already. If you are invited to a meeting (i.e., you are not hosting the meeting), you are not required to create an account; you can simply join the meeting using the meeting ID.

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  • Les turned on the debugging to investigate the discovery that several analysis scripts had stopped working in November 2019
    • Each night we run about 100 analysis scripts as batch jobs and after fixing problems with the mon-lib.pl etc. we still found about 10% were randomly failing.
    • After about 4 weeks it eventually transpired that some of the batch machines had not been enabled to access the Oracle database via the firewall. The jobs submitted to those hosts failed.
    • The cause of the problem was eventually identified about January 3rd and fixed about January 6th. No data was lost.
  • The new version of Linux CentOS7, does not appear to support the following modules that are used by the PingER analysis.
    • The Oracle database interface. PingER uses Oracle so there could be a problem. 
    • The perl statistics module
    • I will restrict the PingER analysis jobs to the earlier version of Linux (RHEL6) to avoid these problems. I am working with the systems folks at SLAC and looking into when the current version of Linux at SLAC (RHEL6) will no longer be supported , and following SLAC's planning on how or whether to address the issues.
      • Rhel6 has full support until Nov 30, 2020. It then goes on "extended" support until June , 2024. I expect SLAC will continue to use it during the extended support phase, at least for a couple of years.

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Host
State
last seen
Status
pinger.nchc.org.tw Intermittent problems starting 11/9/2019, it is not pingable starting 11/12/2019.  
pinger.vu.edu.pkUnable to gather data since 29th August, 2019. The host is pingable. Emailed Wajahat 11/3/2019. Wajahat responded 11/11/2019 "Anything improved?". Les responded they are still not working with more details and suggesting we focus on vu. 11/20/2019 Les asks if there is an update? Wajanat responded 11/20/2019 "These guys are not responding. We are trying to contact them. Already tried multiple times." This just applies to vu. Wajahat recommends we keep trying to gather data. I have turned off the warnings. Kieran fixed it 2/3/2020 by restoring the pinger.xml file following email instructions from Les8/28/2019Fixed 2/3/2020.
monitor.seecs.edu.pkNo data since 10/29/2019, host is pingable email to Wajahat 11/7/2019, see vu for follow up. Reminder to Kieran and Wajahat 2/16/2020.10/27/2019 
maggie2.seecs.edu.pkNo data since 11/4/2019, host is pingable email to Wajahat 11/2/2019, 11/20/2019. See vu for follow up Reminder to Kieran and Wajahat 2/16/2020.  
pinger.nwfpuet.edu.pkSomething amiss since April 2019 when it dropped from monitoring over 150 targets down to 4. There is nothing in <BeaconsList>, all the hosts it attempts to monitor are in the locally manually maintained <NodeList>. Does not ping by name. Email sent 11/7/2019, and again 11/20/2019. Reminder to Kieran and Wajahat 2/16/2020.   
pingeramity.inContinues to be unstable. Email 8/29/2019. Turned off email warnings 11/20/2019.  

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