This page describes how maintain PingER. It is mainly meant for PingER
maintainers at SLAC.
PingER data is measured by a program called timeping.pl and the data is
written to a file. At SLAC these are in the directory
Adding a new node
To add a new node to the monitoring, first add a new entry in the list of
nodes. At SLAC this file is
Each entry contains both the IP name and address. At some sites DNS often
fails and data is lost. If there is no DNS entry for the host then its
IP address apears twice. After you add the node proceed to add it to the
Guthrie is a database of nodes used in PingER monitoring. It is impossible
to know for sure the location or details of a machine solely from its
name. Manually adding these facts is time consuming but neccessary.
cd to /afs/slac.stanford.edu/g/www/www-iepm/tools/guthrie
and type perldoc node.pl for details.
Make New Additions Available
To allow the additions made to Guthrie available to the analysis code,
write out the changes with the -o option.
./node.pl -o > /nfs/oceanus/u6/analysis/hep/nodes.cf
The raw data is gathered each night from the monitoring sites. All
the data from all the sites is also processed each night.
Created August 27, 2003. Last updated November 27, 2003.