chore: Enable exponential backoff for retries in tests

[lqiu96]

Fixes: #3972

[gemini-code-assist]

Summary of Changes

Hello @lqiu96, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request refactors the retry and timeout mechanisms within the RemoteBigQueryHelper class, primarily impacting test environments. It introduces exponential backoff for retries and significantly shortens default timeout durations to improve test efficiency and reliability, addressing a reported issue.

Highlights

• Refactored Timeout Constant: The connectTimeout variable in RemoteBigQueryHelper.java has been renamed to CONNECT_TIMEOUT_IN_MS for improved clarity and adherence to naming conventions, and its usage updated accordingly.
• Enabled Exponential Backoff for Retries: The retrySettings() method now configures exponential backoff with a multiplier of 1.5, which is a more robust strategy for handling transient failures in tests.
• Optimized Test Retry Durations: Default retry and RPC timeout durations within RemoteBigQueryHelper have been significantly reduced (e.g., total timeout from 120 seconds to 3 seconds) to minimize overall test execution time, with comments explaining this optimization.
• Updated Test Assertions: The RemoteBigQueryHelperTest has been updated to reflect the new, shorter retry and RPC timeout settings, ensuring tests correctly validate the updated configuration.

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[gemini-code-assist]

Code Review

This pull request enables exponential backoff for retries in tests by updating the retrySettings in RemoteBigQueryHelper. The changes also include reducing timeout values to speed up tests and improving constant naming. The test file RemoteBigQueryHelperTest is updated accordingly.

My review includes a suggestion to improve variable naming for consistency and clarity in the retrySettings method. Overall, the changes are good and improve the test setup.