While collecting resource usage information from the Evergreen status endpoint, the buildscripts/collect_resource_info.py script may encounter a KeyError exception while trying to read parentPid or numThreads property from a process info document in ps_info. The missing properties is due to an error encountered by gopsutil while reading from /proc. This prevents us from collecting the full set of resource usage info for the duration of the test suite.

This error is seen in the system logs:

[2017/07/21 11:43:48.918] Traceback (most recent call last):
[2017/07/21 11:43:48.918]   File "buildscripts/collect_resource_info.py", line 98, in <module>
[2017/07/21 11:43:48.918]     main()
[2017/07/21 11:43:48.918]   File "buildscripts/collect_resource_info.py", line 84, in main
[2017/07/21 11:43:48.918]     sys_res_dict["ppid"] = process["parentPid"]
[2017/07/21 11:43:48.918] KeyError: 'parentPid'