Mongo error "command voteCommitIndexBuild requires authentication"

General
1

I have installed in synology docker Rocket.chat and mongo. Everything works well.
But the container generates messages every second.
This puts a strain on the disk system.
I ask for advice and correct this error. As a last resort, how can I disable writing these messages to disk?

“2021-01-04 08:49:57,stdout,”{“t”:{"$date":“2021-01-04T11:49:57.752+03:00”},“s”:“I”, “c”:“STORAGE”, “id”:3856202, “ctx”:“IndexBuildsCoordinatorMongod-2”,“msg”:"‘voteCommitIndexBuild’ command failed.",“attr”:{“indexBuildUUID”:{“uuid”:{"$uuid":“d90def3b-4dc1-4cce-aa19-53c3f7eb094e”}},“responseStatus”:{“operationTime”:{"$timestamp":{“t”:1609750196,“i”:1}},“ok”:0.0,“errmsg”:“command voteCommitIndexBuild requires authentication”,“code”:13,“codeName”:“Unauthorized”,"$clusterTime":{“clusterTime”:{"$timestamp":{“t”:1609750196,“i”:1}},“signature”:{“hash”:{"$binary":{“base64”:“RtULaapbdm/5ooRgGl6jfYeyu4k=”,“subType”:“0”}},“keyId”:6890507829308817412}}}}}
“2021-01-04 08:49:57,stdout,”{“t”:{"$date":“2021-01-04T11:49:57.649+03:00”},“s”:“I”, “c”:“STORAGE”, “id”:3856202, “ctx”:“IndexBuildsCoordinatorMongod-1”,“msg”:"‘voteCommitIndexBuild’ command failed.",“attr”:{“indexBuildUUID”:{“uuid”:{"$uuid":“5038dec8-d17f-49a7-afe8-896d37876686”}},“responseStatus”:{“operationTime”:{"$timestamp":{“t”:1609750196,“i”:1}},“ok”:0.0,“errmsg”:“command voteCommitIndexBuild requires authentication”,“code”:13,“codeName”:“Unauthorized”,"$clusterTime":{“clusterTime”:{"$timestamp":{“t”:1609750196,“i”:1}},“signature”:{“hash”:{"$binary":{“base64”:“RtULaapbdm/5ooRgGl6jfYeyu4k=”,“subType”:“0”}},“keyId”:6890507829308817412}}}}}
“2021-01-04 08:49:57,stdout,”{“t”:{"$date":“2021-01-04T11:49:57.648+03:00”},“s”:“I”, “c”:“STORAGE”, “id”:3856202, “ctx”:“IndexBuildsCoordinatorMongod-0”,“msg”:"‘voteCommitIndexBuild’ command failed.",“attr”:{“indexBuildUUID”:{“uuid”:{"$uuid":“7b61f52d-9904-4dc8-9b06-aedb8fcadfad”}},“responseStatus”:{“operationTime”:{"$timestamp":{“t”:1609750196,“i”:1}},“ok”:0.0,“errmsg”:“command voteCommitIndexBuild requires authentication”,“code”:13,“codeName”:“Unauthorized”,"$clusterTime":{“clusterTime”:{"$timestamp":{“t”:1609750196,“i”:1}},“signature”:{“hash”:{"$binary":{“base64”:“RtULaapbdm/5ooRgGl6jfYeyu4k=”,“subType”:“0”}},“keyId”:6890507829308817412}}}}}
“2021-01-04 08:49:56,stdout,”{“t”:{"$date":“2021-01-04T11:49:56.751+03:00”},“s”:“I”, “c”:“STORAGE”, “id”:3856202, “ctx”:“IndexBuildsCoordinatorMongod-2”,“msg”:"‘voteCommitIndexBuild’ command failed.",“attr”:{“indexBuildUUID”:{“uuid”:{"$uuid":“d90def3b-4dc1-4cce-aa19-53c3f7eb094e”}},“responseStatus”:{“operationTime”:{"$timestamp":{“t”:1609750186,“i”:2}},“ok”:0.0,“errmsg”:“command voteCommitIndexBuild requires authentication”,“code”:13,“codeName”:“Unauthorized”,"$clusterTime":{“clusterTime”:{"$timestamp":{“t”:1609750186,“i”:2}},“signature”:{“hash”:{"$binary":{“base64”:“2TFFt43KcKYAPhR+rXwog/vqyOI=”,“subType”:“0”}},“keyId”:6890507829308817412}}}}}
“2021-01-04 08:49:56,stdout,”{“t”:{"$date":“2021-01-04T11:49:56.647+03:00”},“s”:“I”, “c”:“STORAGE”, “id”:3856202, “ctx”:“IndexBuildsCoordinatorMongod-1”,“msg”:"‘voteCommitIndexBuild’ command failed.",“attr”:{“indexBuildUUID”:{“uuid”:{"$uuid":“5038dec8-d17f-49a7-afe8-896d37876686”}},“responseStatus”:{“operationTime”:{"$timestamp":{“t”:1609750186,“i”:2}},“ok”:0.0,“errmsg”:“command voteCommitIndexBuild requires authentication”,“code”:13,“codeName”:“Unauthorized”,"$clusterTime":{“clusterTime”:{"$timestamp":{“t”:1609750186,“i”:2}},“signature”:{“hash”:{"$binary":{“base64”:“2TFFt43KcKYAPhR+rXwog/vqyOI=”,“subType”:“0”}},“keyId”:6890507829308817412}}}}}
“2021-01-04 08:49:56,stdout,”{“t”:{"$date":“2021-01-04T11:49:56.645+03:00”},“s”:“I”, “c”:“STORAGE”, “id”:3856202, “ctx”:“IndexBuildsCoordinatorMongod-0”,“msg”:"‘voteCommitIndexBuild’ command failed.",“attr”:{“indexBuildUUID”:{“uuid”:{"$uuid":“7b61f52d-9904-4dc8-9b06-aedb8fcadfad”}},“responseStatus”:{“operationTime”:{"$timestamp":{“t”:1609750186,“i”:2}},“ok”:0.0,“errmsg”:“command voteCommitIndexBuild requires authentication”,“code”:13,“codeName”:“Unauthorized”,"$clusterTime":{“clusterTime”:{"$timestamp":{“t”:1609750186,“i”:2}},“signature”:{“hash”:{"$binary":{“base64”:“2TFFt43KcKYAPhR+rXwog/vqyOI=”,“subType”:“0”}},“keyId”:6890507829308817412}}}}}

3

I managed my problem by editing mongod.conf

security:
keyFile: <path-to-keyfile>

(https://docs.mongodb.com/manual/tutorial/enforce-keyfile-access-control-in-existing-replica-set/)