Prewrite PrimaryKey unnecessary retry

[shiyuhang0]

Bug Report

1. Describe the bug

Prewrite PrimaryKey will retry for the retryableException. The following code shows the definition of retryableException.

private boolean retryableException(Exception e) {
    return e instanceof TiClientInternalException
        || e instanceof KeyException
        || e instanceof RegionException
        || e instanceof StatusRuntimeException;
  }

Consider this scenario: Prewrite PrimaryKey fail because of the KeyException-WriteConflict（start_ts<commit_ts). Then It will fail no matter how many times it is retried, because the start_ts is always less than commit_ts

Here are my questions:

1. Are there some exceptions that don't have to be retried.
2. Whether to use new request parameters when retrying, such as new start_ts.

[github-actions[bot]]

This issue is stale because it has been open 30 days with no activity.