Bedrock Data source sync does not work

First, ensure that you have the necessary permissions to perform the sync operation. You should be using an IAM role with appropriate Amazon Bedrock permissions.

If permissions are not the issue, try the following steps:

1. Refresh the page and attempt the sync again. Sometimes, console issues can be resolved with a simple refresh.

2. Check if there are any ongoing sync processes. You can only start a new sync if there isn't one already in progress.

3. Verify that your data source is properly configured, including connection information, vector embeddings model, vector store, and file formats.

4. Ensure that your files do not exceed the specified ingestion job file size limit.

5. If you're using an Amazon OpenSearch Serverless vector store, confirm that the vector index is configured with the 'faiss' engine.

If the issue persists after trying these steps, you might want to check the sync history for any previous attempts. You can do this by selecting the data source and looking for a "Sync history" section. This might provide insights into any previous sync attempts or failures.

As an alternative, you could try using the API method to start the ingestion job. This involves sending a 'StartIngestionJob' request programmatically, which might bypass any potential console interface issues.

If none of these solutions work, I recommend contacting AWS Support for further assistance. They can provide more specific troubleshooting based on your account and setup.

Remember, after a successful sync, it may take a few minutes for the vector embeddings to reflect in the knowledge base for querying, especially if you're using a vector store other than Amazon Aurora (RDS).

Sources
Sync your data with your Amazon Bedrock knowledge base - Amazon Bedrock
View information about an Amazon Bedrock knowledge base - Amazon Bedrock
View data source information for your Amazon Bedrock knowledge base - Amazon Bedrock

I fixed it. You have to get access to the models you wanted to use for the data first under "model access"