Configuring model request payload size

Model metrics have a configuration that restricts model request payload to 100 KB. You can increase the payload size if required.

Convert the payload size to bytes.
For example, 100 KB (Kilobytes) = 100 * 1024 bytes = 102400 bytes.
Encode the values into the Base64 format.
For example, 20 MB in Bytes is 20000000, to convert it to Base64 value, run the following command on the terminal:
```
echo -n "20000000" | base64
```
The output would be MjAwMDAwMDA=. Here, MjAwMDAwMDA= is the Base64 encoded value.
Edit the existing Secret object to specify the model request payload size.
```
kubectl edit secret model-metrics-config -n mlx
```
This opens your default editor and allows you to update the Base64 encoded values.
Locate the max.request.size.bytes field and update it with the Base64 encoded value.
```
max.request.size.bytes: [***Base64-encoded-value***]
```
For example, substitute the above 20 MB Base64 encoded value:
```
max.request.size.bytes: MjAwMDAwMDA=
```
Save and close the editor.
Restart the model metrics pod by deleting the pod.
```
 kubectl delete pod modelmetrics [***pod nam-ext***] -n mlx
```
This will force Kubernetes to restart the pod with the updated configuration.

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