systemd journal filling logs due to DEBUG_LOGLEVEL set to 8.

Issue

• High CPU and memory utilisation observed on system.

• 'journalctl' utilising more CPU.

• atomic-openshift-node service flooding the logs inside messages file. Snippet for reference.

</snip>
Feb  5 16:39:04 xxxx.com atomic-openshift-node: I0205 16:39:04.371713    6487 round_trippers.go:414]     Date: Wed, 05 Feb 2020 11:06:17 GMT
Feb  5 16:39:04 xxxx.com atomic-openshift-node: I0205 16:39:04.372188    6487 request.go:895] Response Body:
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000000  6b 38 73 00 0a 0a 0a 02  76 31 12 04 4e 6f 64 65  |k8s.....v1..Node|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000010  12 8c 2e 0a e0 03 0a 16  70 72 64 78 63 72 61 70  |........xxxx|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000020  70 61 70 70 30 31 2e 69  62 6c 2e 63 6f 6d 12 00  |.com..|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000030  1a 00 22 2b 2f 61 70 69  2f 76 31 2f 6e 6f 64 65  |.."+/api/v1/node|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000040  73 2f 70 72 64 78 63 72  61 70 70 61 70 70 30 31  |s/xxxx.com|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000050  2e 69 62 6c 2e 63 6f 6d  2f 73 74 61 74 75 73 2a  |.xxxx.com/status*|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000060  24 66 35 61 37 38 32 61  62 2d 65 65 31 36 2d 31  |$f5a782ab-ee16-1|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000070  31 65 38 2d 38 66 61 37  2d 30 30 35 30 35 36 39  |1e8-8fa7-0050569|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000080  66 32 62 62 35 32 08 39  33 30 39 34 36 33 37 38  |f2bb52.930946378|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 00000090  00 42 08 08 ad fb d8 df  05 10 00 5a 0b 0a 03 61  |.B.........Z...a|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 000000a0  70 70 12 04 78 63 72 6f  5a 20 0a 17 62 65 74 61  |pp..xcroZ ..beta|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 000000b0  2e 6b 75 62 65 72 6e 65  74 65 73 2e 69 6f 2f 61  |.kubernetes.io/a|
Feb  5 16:39:04 xxxx.com atomic-openshift-node: 000000c0  72 63 68 12 05 61 6d 64  36 34 5a 1e 0a 15 62 65  |rch..amd64Z...b [truncated 2827
2 chars]
</snip>