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SBN Computing

Diagnose Computing Issues

  • Examine /var/log/messages. (Need to be root)
  • atop
  • ausearch -ts 9/20/2020 16:54:00 -te 9/21/2020 06:51:00
  • journalctl --since "2015-06-26 23:15:00" --until "2015-06-26 23:20:00"
  • DAQ log files
    • /daq/run_records
    • /daq/log/icarustpcew01t-icarus-tpc18-11124/icarustpcew01t-icarus-tpc18-11124-20200923103152-26036.log

I've attached some dumps from atop. It looks like the lar application became very busy.

You can gather additional information with 'atop -r /var/log/atop/atop_20200730.1' depending on what you're looking for.

You should also have access to '/var/log/sa/202007/sar30' which you can query with 'sar -f /var/log/sa/202007/sar30'

SBN Online Monitoring

23-Apr-2019 - Reorganized by Geoff Savage