Bedrock invoke agent 'overrideSearchType' =HYBRID does not work

Question

I'm using below knowledgeBaseConfigurations to invoke bedrock agent.  it cannot find the query.  but I test the same query in known based console with search type: HYBRID, I can get query result.

```
def _invoke_agent(username, sessionId, user_query):
    response = bedrock_agent.invoke_agent(
       agentAliasId=agent_alias_id,
       agentId=agent_id,
       sessionId=sessionId,
       enableTrace=True,
       inputText=user_query,
       sessionState={
           'knowledgeBaseConfigurations' : [
               {
                   'knowledgeBaseId': knowledge_base_id,
                   'retrievalConfiguration': {
                       'vectorSearchConfiguration': {
                            'numberOfResults': 10,
                    **        'overrideSearchType': 'HYBRID'**
                       }
                   }
               } 
           ],
            'promptSessionAttributes': {
                'username': username
            },
            
            'sessionAttributes': {
                'username': username
            }, 
       } 
    )

```

Yong · Accepted Answer

It only works for  Amazon OpenSearch Serverless, not work for AOS cluster

Didier Durand · Answer

Hi,

As per https://docs.aws.amazon.com/bedrock/latest/APIReference/API_agent-runtime_KnowledgeBaseVectorSearchConfiguration.html#bedrock-Type-agent-runtime_KnowledgeBaseVectorSearchConfiguration-overrideSearchType using the value `HYBRID` is valid. And it works from console.

So, you should suspect something else: 1/ your code runs from somewhere where it can't access the Bedrock endpoint 2/ missing IAM policy to allow your code to access endpoint 3/ etc,

Can you provide more details on the error you get ?

Best,

Didier

Bedrock invoke agent 'overrideSearchType' =HYBRID does not work

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