Evicted telemetry pods


I can see my telemetry pod is showing “evicted”. can someone tell me why is that the case:

[sourabh.w@K9-MAC-035 objects4bucket]$  k get pods -l istio-mixer-type=telemetry -n istio-system
NAME                               READY   STATUS    RESTARTS   AGE
istio-telemetry-5965f9d996-grt65   2/2     Running   0          3h37m
istio-telemetry-5965f9d996-tfxwp   0/2     Evicted   0          16d
[sourabh.w@K9-MAC-035 objects4bucket]$

There was a time when our telemetry pod was using 5GB+ memory. Is it usual ?

I am using 1.1.3 Istio version in Google managed istio in Gcloud.