@Override
    public void cancel() {
      isCanceled = true;
    }
Whether the test is executing in a scenario that induces a failover. This doesn't mean that
this source induces the failover.
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/test/java/org/apache/amoro/flink/write/MixedFormatFileWriterITCase.java