High CPU load too high

Have an 8 node cluster, it’s doing nothing. No data loading or any queries running. Where does the load come from? See below, 800% CPU time? version v.1.1.6

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
135652 root 20 0 0.162t 0.041t 20044 S 802.3 8.4 44836:03 cockroach
135088 root 20 0 0.157t 0.045t 19496 S 800.0 9.1 30776:04 cockroach
135842 root 20 0 0.207t 0.045t 18656 S 698.7 9.2 52945:24 cockroach
136044 root 20 0 0.179t 0.042t 18560 S 628.1 8.5 39255:36 cockroach
134952 root 20 0 0.150t 0.044t 19828 S 576.2 9.0 24908:15 cockroach
135269 root 20 0 0.155t 0.042t 20196 S 564.0 8.5 25752:35 cockroach
135464 root 20 0 0.234t 0.053t 19684 S 291.4 10.8 48678:17 cockroach
134748 root 20 0 0.165t 0.042t 24408 S 214.2 8.6 33736:00 cockroach