Hello,

Using mongo in kubernates environ ment with centos as base.
configured 3 replicas with memory limit to 10G

Limits:
cpu: 5
memory: 10Gi
Requests:
cpu: 1
memory: 2Gi

When the pod started can see it occupies upto 4G of memory and gradually when the parallel connections and queries increases,
it occupying around 98% of total memory and not releasing the memory post use.

[root@node00 cloud-user]# kubectl top pod -n test | grep mngo
e-cmngo-replica-0 92m 9433Mi
e-mngo-replica-1 89m 6065Mi
e-mngo-replica-2 96m 6482Mi

The wiredtiger cache set to default(around 4G )
is there a way we can release the memory post usage ?

WitreTiger info:
e:PRIMARY> db.serverStatus().wiredTiger.cache
{
"application threads page read from disk to cache count" : 1599135,
"application threads page read from disk to cache time (usecs)" : 1619303577,
"application threads page write from cache to disk count" : 1796,
"application threads page write from cache to disk time (usecs)" : 564252,
"bytes belonging to page images in the cache" : 3797310198,
"bytes belonging to the cache overflow table in the cache" : 182,
"bytes currently in the cache" : 3809181895,
"bytes dirty in the cache cumulative" : 88830916,
"bytes not belonging to page images in the cache" : 11871696,
"bytes read into cache" : 463809362069,
"bytes written from cache" : 92928011,