Migration & Transfer
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asked 5 days ago
Ongoing replication from MongoDB to RDS PostgresSQL
Created an AWS DMS pipeline:
Source endpoint - **MongoDB **
Target endpoint - **RDS Postgres SQL**
Successfully did all the security configuration, and both **endpoints **returned **successful **while testing it. For the MongoDB source, I am using one of the three **replicas **sets with a username and a password that is not the admin username.
I also added the privilege "**changeStream**" in the replica set user.
But when starting the DMS migration task getting this error in cloud watch.
```
Encountered an error while initializing change stream: 'not authorized on admin to execute command
{ aggregate: 1, pipeline: [ { $changeStream: { fullDocument: "updateLookup", startAtOperationTime: Timestamp(1656005815, 0),
allChangesForCluster: true } }, "ok" : { "$numberDouble" : "0.0" },
"errmsg" : "not authorized on admin to execute command { aggregate: 1, pipeline: [ { $changeStream: { fullDocument:
\"updateLookup\", startAtOperationTime: Timestamp(1656005815, 0), allChangesForCluster: true } },
74f1-4aab-9ca1-f964ab655777\ (change_streams_capture.c:356)
```
Assuming this is due to some missing privileges in mongo replica sets USER.
Accepted AnswerAWS Database Migration Service
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