> ## Documentation Index
> Fetch the complete documentation index at: https://new.docs.falkordb.com/llms.txt
> Use this file to discover all available pages before exploring further.

# GRAPH.CONFIG-SET

> Updates a FalkorDB configuration

Set the value of a FalkorDB configuration parameter.

Values set using `GRAPH.CONFIG SET` are not persisted after server restart.

FalkorDB configuration parameters are detailed [here](/getting-started/configuration).

Note: As detailed in the link above, not all FalkorDB configuration parameters can be set at run-time.

Multiple parameters can be set in a single command:

```sh theme={null}
GRAPH.CONFIG SET key1 val1 key2 val2 ...
```

<CodeGroup>
  ```python Python theme={null}
  from falkordb import FalkorDB
  client = FalkorDB()
  print(client.config_get('TIMEOUT_DEFAULT'))
  client.config_set('TIMEOUT_DEFAULT', 10000)
  print(client.config_get('TIMEOUT_DEFAULT'))
  ```

  ```javascript JavaScript theme={null}
  import { FalkorDB } from 'falkordb';
  const client = await FalkorDB.connect();
  console.log(await client.configGet('TIMEOUT_DEFAULT'));
  await client.configSet('TIMEOUT_DEFAULT', 10000);
  console.log(await client.configGet('TIMEOUT_DEFAULT'));
  ```

  ```java Java theme={null}
  import com.falkordb.*;

  Driver driver = FalkorDB.driver("localhost", 6379);
  System.out.println(driver.configGet("TIMEOUT_DEFAULT"));
  driver.configSet("TIMEOUT_DEFAULT", 10000);
  System.out.println(driver.configGet("TIMEOUT_DEFAULT"));
  ```

  ```rust Rust theme={null}
  use falkordb::{FalkorClientBuilder, FalkorConnectionInfo};

  let connection_info: FalkorConnectionInfo = "falkor://127.0.0.1:6379"
      .try_into().expect("Invalid connection info");
  let client = FalkorClientBuilder::new()
      .with_connection_info(connection_info)
      .build().expect("Failed to build client");
  println!("{:?}", client.config_get("TIMEOUT_DEFAULT")?);
  client.config_set("TIMEOUT_DEFAULT", 10000)?;
  println!("{:?}", client.config_get("TIMEOUT_DEFAULT")?);
  ```

  ```bash Shell theme={null}
  graph.config get TIMEOUT_DEFAULT
  graph.config set TIMEOUT_DEFAULT 10000
  graph.config get TIMEOUT_DEFAULT
  # Output:
  # 1) "TIMEOUT_DEFAULT"
  # 2) (integer) 0
  # OK
  # 1) "TIMEOUT_DEFAULT"
  # 2) (integer) 10000
  ```
</CodeGroup>

<CodeGroup>
  ```python Python theme={null}
  try:
      client.config_set('THREAD_COUNT', 10)
  except Exception as e:
      print(e)
  ```

  ```javascript JavaScript theme={null}
  try {
    await client.configSet('THREAD_COUNT', 10);
  } catch (e) {
    console.error(e);
  }
  ```

  ```java Java theme={null}
  try {
      driver.configSet("THREAD_COUNT", 10);
  } catch (Exception e) {
      System.out.println(e.getMessage());
  }
  ```

  ```rust Rust theme={null}
  if let Err(e) = client.config_set("THREAD_COUNT", 10) {
      println!("{}", e);
  }
  ```

  ```bash Shell theme={null}
  graph.config set THREAD_COUNT 10
  # Output:
  # (error) This configuration parameter cannot be set at run-time
  ```
</CodeGroup>

## Frequently Asked Questions

<AccordionGroup>
  <Accordion title="Are configuration changes persisted after a server restart?">
    No. Values set using `GRAPH.CONFIG SET` are **not persisted** after server restart. To make changes permanent, update the server configuration file or use startup arguments.
  </Accordion>

  <Accordion title="Can all configuration parameters be changed at runtime?">
    No. Some parameters like `THREAD_COUNT` can only be set at server startup. Attempting to change them at runtime will return an error: 'This configuration parameter cannot be set at run-time'.
  </Accordion>

  <Accordion title="Can I set multiple configuration parameters in a single command?">
    Yes. You can set multiple parameters at once: `GRAPH.CONFIG SET key1 val1 key2 val2 ...`
  </Accordion>

  <Accordion title="What happens if I set an invalid value?">
    The command will return an error and the configuration parameter will retain its previous value. No partial changes are applied.
  </Accordion>
</AccordionGroup>