3.6.7.10

[PalNilsson]

• Improved reporting of CPU consumption time
  • It was seen in I/O bound payloads that the correct CPU consumption time was not reported correctly. Pilot is now making sure there are no zero values reported
  • Reported by R. Walker
• Migration towards using psutil module has started
  • Until now, pilot has relied on executing the ps command for process information, but this is heavy on the system if many ps commands are executed in short time
  • A. De Silva has made the psutil module available via ALRB and is setup in the wrapper with ‘lsetup psutil’ by P. Love
    Currently, there is no requirement for psutil - the pilot has a fallback to using other process info in case psutil fails to import - but this will change soon
  • Pilot is currently only using psutil to get information whether a certain process is running or not, with a fallback to /proc/{pid}
• Added protection for failed writing of info dictionary to disk before server update
  • Curl normally uses this dictionary, but should now instead use the dictionary explicitly (converted to string)
  • Previously, the pilot would fail to inform the server, i.e. the job would become a lost heartbeat
  • The pilot might still fail before reaching this point, as it basically relies on disks with space > 0
• Moved import of google cloud logging to beginning of real-time logging module to prevent an unexplained problem seen in Rubin jobs
  • Previously, said module was only imported when it needed to be used, but for some reasons this would occasionally lead to python locking up
  • Requested by Z. Yang (Rubin)