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  1. Open the Kyvos Java options page in Kyvos Manager and Navigate to the Query Engine section. 

  2. If Configure Heap memory for Query Engine is set as Auto, no change is required. 

  3. If Configure Heap memory for Query Engine is set as Manual, reduce Off-Heap memory by 10 GB. 
    For Example, Suppose the total machine memory is 128 GB, whereas 45 GB is assigned to Heap, and 66 GB is assigned to Off-Heap. In that case, you need to set Heap as 45 GB and Off-Heap as 56 GB so Kyvos can use the remaining 10 GB internally for the new data store-based architecture. 

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Important
In case of upgrading, you need to add the datastore jar to the Spark class path. To do this, follow the steps below.  

  1. Login to Kyvos and go to the Connection page.

  2. Search “kyvos.connection.classpath.common.jar” and add the ../lib/duckdb_jdbc.jar value in the existing class path. 

  3. Restart Kyvos services.