Update default connection timeout to be 30 seconds

Author: ali-ince

src/v1/index.js

@@ -211,8 +211,8 @@ const logging = {
  *
  *       // Specify socket connection timeout in milliseconds. Numeric values are expected. Negative and zero values
  *       // result in no timeout being applied. Connection establishment will be then bound by the timeout configured
- *       // on the operating system level. Default value is 5000, which is 5 seconds.
- *       connectionTimeout: 5000, // 5 seconds
+ *       // on the operating system level. Default value is 30000, which is 30 seconds.
+ *       connectionTimeout: 30000, // 30 seconds
  *
  *       // Make this driver always return native JavaScript numbers for integer values, instead of the
  *       // dedicated {@link Integer} class. Values that do not fit in native number bit range will be represented as

src/v1/internal/channel-config.js

@@ -20,7 +20,7 @@
 import { newError, SERVICE_UNAVAILABLE } from '../error'
 import { ENCRYPTION_OFF, ENCRYPTION_ON } from './util'
 
-const DEFAULT_CONNECTION_TIMEOUT_MILLIS = 5000 // 5 seconds by default
+const DEFAULT_CONNECTION_TIMEOUT_MILLIS = 30000 // 30 seconds by default
 
 const ALLOWED_VALUES_ENCRYPTED = [
   null,

test/internal/channel-config.test.js

@@ -109,7 +109,7 @@ describe('ChannelConfig', () => {
   it('should have connection timeout by default', () => {
     const config = new ChannelConfig(null, {}, '')
 
-    expect(config.connectionTimeout).toEqual(5000)
+    expect(config.connectionTimeout).toEqual(30000)
   })
 
   it('should respect configured connection timeout', () => {