I use the sidecar method of k8s to collect logs. If I use emptydiry to mount, will the uncollected logs be lost when the pod is moved to another node?

apiVersion: v1
kind: Pod
metadata:
 name: counter
spec:
 containers:
   - name: count
     image: busybox
     ...    
     volumeMounts:
       - name: varlog
         mountPath: /var/log
   - name: count-agent
     image: k8s.gcr.io/fluentd-gcp:1.30
     ...
     volumeMounts:
       - name: varlog
         mountPath: /var/log
       - name: config-volume
         mountPath: /etc/fluentd-config
 volumes:
   - name: varlog
     emptyDir: {}
   - name: config-volume
     configMap:
       name: fluentd-config