MongoDB · January 2, 2024

How to fix MongoDB Error Code - 94 - NotYetInitialized

How to Fix MongoDB Error Code - 94 - NotYetInitialized

MongoDB is a popular open-source NoSQL database that offers high performance, scalability, and flexibility. However, like any software, it can encounter errors that may disrupt its normal operation. One such error is MongoDB Error Code - 94 - NotYetInitialized. In this article, we will explore the causes of this error and provide step-by-step solutions to fix it.

Understanding MongoDB Error Code - 94 - NotYetInitialized

MongoDB Error Code - 94 - NotYetInitialized occurs when a MongoDB replica set member is unable to find a valid replica set configuration. This error typically happens when a replica set member is started without proper initialization or when the replica set configuration is not available.

When this error occurs, you may see an error message similar to the following:


{
"ok" : 0,
"errmsg" : "Our replica set configuration is invalid or does not include us",
"code" : 94,
"codeName" : "NotYetInitialized"
}

Possible Causes of MongoDB Error Code - 94 - NotYetInitialized

There are several potential causes for this error:

  • Incomplete Initialization: If a replica set member is started without proper initialization, it may not have the necessary configuration to join the replica set.
  • Missing or Incorrect Replica Set Configuration: If the replica set configuration is missing or incorrect, the member may not be able to find a valid replica set to join.
  • Network Connectivity Issues: If there are network connectivity issues between the replica set members, they may not be able to communicate and exchange the necessary configuration information.

Fixing MongoDB Error Code - 94 - NotYetInitialized

To fix MongoDB Error Code - 94 - NotYetInitialized, follow these steps:

Step 1: Check Initialization Status

First, check if the replica set member has been properly initialized. You can do this by connecting to the MongoDB instance and running the following command:


rs.status()

If the member has not been initialized, you will see a status of "NotYetInitialized". In this case, proceed to the next step.

Step 2: Initialize the Replica Set Member

To initialize the replica set member, you need to provide the replica set configuration. If you have a valid replica set configuration file, you can use the following command to initialize the member:


rs.initiate(config)

Replace config with the path to your replica set configuration file.

If you don't have a replica set configuration file, you can use the following command to initialize the member with a basic configuration:


rs.initiate()

This will create a new replica set with the default configuration.

Step 3: Verify Replica Set Configuration

After initializing the replica set member, verify that the replica set configuration is correct. You can do this by running the following command:


rs.conf()

This will display the current replica set configuration. Make sure that all members are listed correctly and that the configuration matches your intended setup.

Step 4: Restart the MongoDB Service

If the above steps did not resolve the error, try restarting the MongoDB service on the affected replica set member. This can help refresh the configuration and resolve any potential connectivity issues.

Summary

MongoDB Error Code - 94 - NotYetInitialized occurs when a replica set member is unable to find a valid replica set configuration. To fix this error, you need to ensure proper initialization, provide a valid replica set configuration, and verify the configuration's accuracy. If the error persists, restarting the MongoDB service may help resolve any connectivity issues.

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