Kubernetes Killing Mongo Container
Based on what Stennie from MongoDB, Inc. wrote in comment to question.
this command in kube .yaml works for me:
command: - "sh" - "-c" - > echo "storage:" >> /etc/mongod.conf; echo " wiredTiger:" >> /etc/mongod.conf; echo " engineConfig:" >> /etc/mongod.conf; echo " cacheSizeGB: 2" >> /etc/mongod.conf; echo "replication:" >> /etc/mongod.conf; echo " replSetName: YOUR_REPL_NAME" >> /etc/mongod.conf; mongod --config /etc/mongod.conf;also there is a way to set it in runtime:
db.adminCommand( { "setParameter": 1, "wiredTigerEngineRuntimeConfig":"cache_size=2G"})which also works just fine, but it looks easier through kuberneties yaml file because to issue a command you have to wait until mongo is up and running.
NOTE:make sure that your:
resources: limits: memory:is allowing extra 1G for system.