Hey @LHANTAEK! 👋 I'm here to help you with any bugs, questions, or contributions you have for Dify. I'm a bot designed to assist you while you wait for a human maintainer. Let's tackle this together!

The use of a reranker is not mandatory when utilizing external knowledge in a workflow. The issue you're experiencing, where you are unable to turn off the reranker, was a bug in Dify version 0.15.3. However, this bug has been fixed in a recent update. Since you are using version 1.0.0, the reranker should be disabled by default unless explicitly enabled. If you are still facing this issue, it might be worth checking your configuration settings or ensuring that your update to version 1.0.0 was successful ^[1].

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@dosu

I have already checked previous issues related to this, but the reranker still cannot be turned off in the current workflow with external knowledge added. Could you please advise on how to resolve this issue?

To resolve the issue of being unable to turn off the reranker in a workflow with external knowledge added, ensure that the currentRerankModel is not required when disabling the reranker. The code allows disabling the reranker without any issue if currentRerankModel is not present. Additionally, check that the multiple_retrieval_config is correctly set in the nodeDefault configuration, with reranking_enable set to false by default ^[1][2].

If the problem persists, verify that there are no other conditions or external factors affecting this logic. Conditions such as allEconomic, mixtureHighQualityAndEconomic, inconsistentEmbeddingModel, allExternal, mixtureInternalAndExternal, and allHighQuality combined with !inconsistentEmbeddingModel and allInternal can influence the reranker's behavior ^[3].

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@crazywoola Hi,

On the web interface, even after setting the reranker to "OFF," it continues to automatically revert to "ON." However, after downloading the DSL file, manually changing reranking_enable: true to false, and re-uploading this modified DSL, I confirmed that publishing is possible with the reranker set to "OFF." What might be causing this issue? Why doesn't the reranker remain "OFF" through the web interface?