t8y2/dbx · error

Hive host is required

Error message

Hive host is required

What it means

The Argo Hive driver requires at least one endpoint (host:port) to establish a connection. After applying parameters, Kerberos options, and TLS config, buildConnectionConfig checks config.Endpoints and returns this error when the list is empty, meaning no host was resolvable from the connection string or parameters.

Source

Thrown at agents/drivers/argo-go/config.go:251

				return connectionConfig{}, endpointErr
			}
			config.Endpoints = append(config.Endpoints, parsedEndpoint)
		}
	} else {
		config.Endpoints = parsed.endpoints
	}
	applyOpenSessionVariables(&config, values, hiveConfs, hiveVars)
	if err := applyDelegationToken(&config, values); err != nil {
		return connectionConfig{}, err
	}
	applyKerberosJavaOptions(&config.Kerberos, params.AgentJavaOptions)
	applyZooKeeperKerberosJavaOptions(&config.ZooKeeperKerberos, params.AgentJavaOptions)
	applyKerberosEnvironment(&config.Kerberos)
	if err := finalizeKerberosConfig(&config); err != nil {
		return connectionConfig{}, err
	}
	if len(config.Endpoints) == 0 {
		return connectionConfig{}, errors.New("Hive host is required")
	}

	tlsConfig, err := buildTLSConfig(params, values, config.Endpoints[0].Host)
	if err != nil {
		return connectionConfig{}, err
	}
	config.TLSConfig = tlsConfig
	zooKeeperTLSConfig, err := buildZooKeeperTLSConfig(values)
	if err != nil {
		return connectionConfig{}, err
	}
	config.ZooKeeperTLSConfig = zooKeeperTLSConfig
	return config, nil
}

func isZooKeeperDiscovery(mode string) bool {
	return strings.EqualFold(mode, "zookeeper") || strings.EqualFold(mode, "zookeeperha")
}

View on GitHub (pinned to c0390bff16)

Solutions

1. Include a host in the connection string, e.g. jdbc:hive2://hive-host:10000/default
2. Set the endpoint/host parameter expected by the driver (check exact parameter name in config.go)
3. Verify the parsed connection actually populates Endpoints (debug the parse result before config finalization)

Example fix

// before
jdbc:hive2:///?auth=JWT
// after
jdbc:hive2://hive.example.com:10000/default?auth=JWT

if !strings.Contains(connStr, "@") && !strings.Contains(connStr, "//host") {
    // ensure a host is present in the connection string
}

cfg, err := buildConnectionConfig(params)
if err != nil {
    if strings.Contains(err.Error(), "Hive host is required") { /* fix config */ }
    return err
}

When it happens

Trigger: Calling the driver's connection/config builder with a connection string or parameters that specify no host — e.g. an empty host, only options in the URL fragment, or endpoints stripped out during parsing.

Common situations: Connection string like 'jdbc:hive2:///?auth=JWT' with no host; environment variable or parameter providing host not set; typo in the host parameter name so it is ignored by the parser.

Understand the failure class

Background: "X is required", "must be set", "cannot be empty": the missing-required-config error family, from Vertex AI project/location to WeChat keys — this error's family across 18 libraries.

Related errors

• Hive endpoint is empty
• Hive JWT authentication requires jwt or the JWT environment
• Hive delegation token authentication requires delegationToke
• Hive connection string must start with jdbc:hive2:// or hive
• token is empty

AI-assisted analysis of t8y2/dbx@c0390bff16 (2026-09-05). Data as JSON: /api/errors/30986f59685653a3. Report an issue: GitHub.