Troubleshooting MongoDB OpLog Connection

Last updated on Oct 21, 2022
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If you are unable to set up MongoDB using OpLogs, please verify the checklist below. You must use your auth DB to run the following commands. Additionally, you must have a root role in auth DB.

Use the following command to log in to you mongo shell. Ensure that you substitute the variables in ‘<>’ (angle brackets) with the actual values.

mongo <>:<port>/<database> -u <username> -p --authenticationDatabase <auth_db>
  1. Run the following command to switch to auth DB

    use <auth db>
  2. Verify the user has read role on both local DB and the DB intended to be read. Run the following command in Mongo shell.

     db.getUser("<db user>").roles

The expected output would be:

   "role" : "read",  
   "db" : "local"  
 }, {  
   "role" : "read",  
   "db" : "<db to replicate>"  

Hevo requires the following privileges from the user if you are not provisioning a complete read role:

"find", "listCollections", "listIndexes"

See Also

Revision History

Refer to the following table for the list of key updates made to this page:

Date Release Description of Change
Sep-05-2022 NA Brought this page under its respective Source documentation folder.
Oct-04-2021 1.73 New document.

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