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Description
Recently,we have a problem through cAdvisor 0.24,using Mesos and Marathon to control docker containers,but we find some containers start in the /system.slice directory and some containers start in the /system.slice /docker ,but containers start in the /system.slice directory the stats always be 0 including CPU and memory.And some in the /docker directory is correct in stats.
We want to know why the cAdvisor can not collect the stats info from the containers of system.slice
the code from the restful api http://127.0.0.1:8080/api/v2.1/stats?type=docker&recursive=true&count=2:
/system.slice/var-lib-docker-containers-c5c4b26a111f9502cf30cc563439ff0e9d9f3a50d571671b4527897ab5c5b837-shm.mount":{"spec":{"creation_time":"2016-08-24T04:38:24.623180605Z","aliases":["mesos-725cdbc1-f1e5-47ca-a3a2-814725315516-S10.81e58c5d-46a2-4a15-a644-feadd54c60f3","c5c4b26a111f9502cf30cc563439ff0e9d9f3a50d571671b4527897ab5c5b837"],"namespace":"docker","has_cpu":true,"cpu":{"limit":1024,"max_limit":0},"has_memory":true,"memory":{"limit":9223372036854775807,"reservation":9223372036854775807,"swap_limit":9223372036854775807},"has_custom_metrics":false,"has_network":true,"has_filesystem":true,"has_diskio":true,"image":"10.161.24.239/cadvisor/cadvisor:v0.24.0-alpha1"},"stats":[{"timestamp":"2016-08-24T08:01:48.449914053Z","cpu":{"usage":{"total":0,"per_cpu_usage":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"user":0,"system":0},"cfs":{"periods":0,"throttled_periods":0,"throttled_time":0},"load_average":0},"diskio":{},"memory":{"usage":0,"cache":0,"rss":0,"swap":0,"working_set":0,"failcnt":0,"container_data":{"pgfault":0,"pgmajfault":0},"hierarchical_data":{"pgfault":0,"pgmajfault":0}},"network":{"interfaces":[{"name":"eth0","rx_bytes":4267012,"rx_packets":54416,"rx_errors":0,"rx_dropped":0,"tx_bytes":135328535,"tx_packets":52886,"tx_errors":0,"tx_dropped":0}],"tcp":{"Established":0,"SynSent":0,"SynRecv":0,"FinWait1":0,"FinWait2":0,"TimeWait":0,"Close":0,"CloseWait":0,"LastAck":0,"Listen":0,"Closing":0},"tcp6":{"Established":0,"SynSent":0,"SynRecv":0,"FinWait1":0,"FinWait2":0,"TimeWait":0,"Close":0,"CloseWait":0,"LastAck":0,"Listen":0,"Closing":0}},"filesystem":{"totalUsageBytes":45056,"baseUsageBytes":0}},{"timestamp":"2016-08-24T08:01:49.727745631Z","cpu":{"usage":{"total":0,"per_cpu_usage":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"user":0,"system":0},"cfs":{"periods":0,"throttled_periods":0,"throttled_time":0},"load_average":0},"cpu_inst":{"usage":{"total":0,"per_cpu_usage":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"user":0,"system":0}},"diskio":{},"memory":{"usage":0,"cache":0,"rss":0,"swap":0,"working_set":0,"failcnt":0,"container_data":{"pgfault":0,"pgmajfault":0},"hierarchical_data":{"pgfault":0,"pgmajfault":0}},"network":{"interfaces":[{"name":"eth0","rx_bytes":4271611,"rx_packets":54475,"rx_errors":0,"rx_dropped":0,"tx_bytes":135517667,"tx_packets":52957,"tx_errors":0,"tx_dropped":0}],"tcp":{"Established":0,"SynSent":0,"SynRecv":0,"FinWait1":0,"FinWait2":0,"TimeWait":0,"Close":0,"CloseWait":0,"LastAck":0,"Listen":0,"Closing":0},"tcp6":{"Established":0,"SynSent":0,"SynRecv":0,"FinWait1":0,"FinWait2":0,"TimeWait":0,"Close":0,"CloseWait":0,"LastAck":0,"Listen":0,"Closing":0}},"filesystem":{"totalUsageBytes":45056,"baseUsageBytes":0}}]}}
other thing
system:
Linux resourcepool-0226-slave01 3.10.0-327.el7.x86_64 #1 SMP Thu Oct 29 17:29:29 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux
docker version:
Docker version 1.12.0, build 8eab29e