I have setup of 1 master and 2 salves of kubernetes on centos machines.

Also there is dashboard for kubernetes and 6 spring boot services. The mongodb is installed as service on master node.

The setup works fine for 1 or 2 days but then the system hangs and need to do the forceful restart. There are no memory or cpu panic logs or any kubernetes error logs available. The CPU and memory usage is 2% of total available.

Please can anyone suggest any issues with the setup. Below is the versions that i use:

Docker - Docker version 1.13.1, build 64e9980/1.13.1

CentOS -

NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"```


**Kubernetes** - 
```kubeadm version: &version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.4", GitCommit:"c96aede7b5205121079932896c4ad89bb93260af", GitTreeState:"clean", BuildDate:"2020-06-17T11:39:11Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}```

**mongodb** -
v4.0.19