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mcp/harbor
Gemini CLI

Spark SQL for Gemini CLI

io.github.aidancorrell/spark-sql-mcp-server

Query Spark SQL clusters via Thrift/HiveServer2. Works with Spark, EMR, Hive, Impala.

client:Gemini CLI transport:stdio runtime:pypi

Install Spark SQL in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "spark-sql-mcp-server": {
      "command": "uvx",
      "args": [
        "spark-sql-mcp-server"
      ],
      "env": {
        "SPARK_HOST": "<SPARK_HOST>",
        "SPARK_PORT": "<SPARK_PORT>",
        "SPARK_DATABASE": "<SPARK_DATABASE>",
        "SPARK_AUTH": "<SPARK_AUTH>",
        "SPARK_USERNAME": "<SPARK_USERNAME>",
        "SPARK_PASSWORD": "<SPARK_PASSWORD>",
        "SPARK_KERBEROS_SERVICE_NAME": "<SPARK_KERBEROS_SERVICE_NAME>"
      }
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

Spark SQL in other clients

Spark SQL MCP server