Fixes #29426 - Configure default mongo cache size
Configuring default mongo cache size to 20% of total memory. See1Otherwise mongo goes onto consume about 50% of total memory. See2
[1] https://access.redhat.com/solutions/4505561[2] https://docs.mongodb.com/manual/core/wiredtiger/#memory-use
Fixes #29426 - Configure default mongo cache size
Configuring default mongo cache size to 20% of total memory. See1
Otherwise mongo goes onto consume about 50% of total memory. See2
[1] https://access.redhat.com/solutions/4505561
[2] https://docs.mongodb.com/manual/core/wiredtiger/#memory-use