Open
Description
When running the sensor (from the official powerapi/hwpc-sensor:latest image) in a kubernetes cluster, the sensor fails to resolve the name of the containers and does not monitor any container for which it does not find a name
Log:
I: 20-06-19 13:40:37 build: version unknown (rev: 7a63055ff2fdfbfdf776d42188a87de19882dd88) (Jul 18 2019 - 11:36:29)
I: 20-06-19 13:40:37 uname: Linux 5.3.0-59-generic #53~18.04.1-Ubuntu SMP Thu Jun 4 14:58:26 UTC 2020 x86_64
I: 20-06-19 13:40:37 pmu: found ix86arch 'Intel X86 architectural PMU' having 7 events, 7 counters (4 general, 3 fixed)
I: 20-06-19 13:40:37 pmu: found perf 'perf_events generic PMU' having 191 events, 0 counters (0 general, 0 fixed)
I: 20-06-19 13:40:37 pmu: found rapl 'Intel RAPL' having 4 events, 3 counters (0 general, 3 fixed)
I: 20-06-19 13:40:37 pmu: found perf_raw 'perf_events raw PMU' having 1 events, 0 counters (0 general, 0 fixed)
I: 20-06-19 13:40:37 pmu: found skl 'Intel Skylake' having 83 events, 11 counters (8 general, 3 fixed)
I: 20-06-19 13:40:37 pmu: found msr 'Intel MSR' having 6 events, 5 counters (0 general, 5 fixed)
I: 20-06-19 13:40:37 sensor: configuration is valid, starting monitoring...
I: 20-06-19 13:40:37 perf<all>: monitoring actor started
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/besteffort/pod3fe59be9-5416-4c4f-bb68-664e8fe666cd/807b14d95ee42d4281bc32a3bf5461
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/besteffort/pod729286ef-0a0b-4564-b7b5-a0c447169564/6976fcfb5cebac0470aa120715cb79
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/besteffort/pod75d8e723-8850-41af-8486-d88a94c6d301/ec761985f956f7b0364168f7650358
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/besteffort/pod3fe59be9-5416-4c4f-bb68-664e8fe666cd/6b9c0ffb5214ea9f49c995f0fa8e05
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/besteffort/pod75d8e723-8850-41af-8486-d88a94c6d301/488eba3ce355088674feebb79623d9
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/besteffort/podb3685602-8406-41a0-95ce-8774c7c59103/76a4f691e461064fae31da537c81b7
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/besteffort/podcb5c21b3-b556-4021-bac3-19ffd875751c/914b77cca24bd2682333b9dbc602ed
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/burstable/pode14b0994-f4da-4535-bebc-807f8969d1c2/28ce3bd812a83d6e6e21d924d8afc63
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/besteffort/pod0e537378-aec8-4b28-8626-df2215de47de/1667851be5b15fb68da5bda264a343
E: 20-06-19 13:40:37 perf: failed to resolve name of target for cgroup '/sys/fs/cgroup/perf_event/kubepods/poda2fa6ea4-fddc-4654-bb2a-256606c09bd1/3591eba18ecee2f97b4839d4b975481774db0b2da
This issues happen on a k3s-based cluster, both when using docker or containerd as a container engine.