如何缩短网络错误上的Firebase存储下载重试周期

Question

我有从Firebase存储下载文件的基本工作代码.

String key = "gs://.../test.jpg";
File file = new File(getCacheDir() + File.separator + "test.jpg");

FirebaseStorage storage = FirebaseStorage.getInstance();
StorageReference gsRef = storage.getReferenceFromUrl(key);

gsRef.getFile(file)
.addOnSuccessListener(new OnSuccessListener<FileDownloadTask.TaskSnapshot>()
{
    @Override
    public void onSuccess(FileDownloadTask.TaskSnapshot taskSnapshot)
    {
        Log.d("APP", "onSuccess");
    }
}).addOnFailureListener(new OnFailureListener()
{
    @Override
    public void onFailure(@NonNull Exception exception)
    {
        Log.d("APP", "onFailure: ", exception);
    }
});

但是,如果在设备未连接到Internet时执行上述代码,则onFailure最终触发事件前需要大约10分钟.在此期间,日志填满了重复的重试:

02-27 21:41:07.203 12954-13288/com.example.test E/StorageUtil: error getting token java.util.concurrent.ExecutionException: com.google.firebase.FirebaseException: An internal error has occurred. [ <<Network Error>> ]
02-27 21:41:08.244 12954-13288/com.example.test W/ExponenentialBackoff: network unavailable, sleeping.
02-27 21:41:08.294 12954-13288/com.example.test E/StorageUtil: error getting token java.util.concurrent.ExecutionException: com.google.firebase.FirebaseException: An internal error has occurred. [ <<Network Error>> ]
02-27 21:41:09.405 12954-13288/com.example.test W/ExponenentialBackoff: network unavailable, sleeping.
02-27 21:41:09.485 12954-13288/com.example.test E/StorageUtil: error getting token java.util.concurrent.ExecutionException: com.google.firebase.FirebaseException: An internal error has occurred. [ <<Network Error>> ]

有没有办法可以缩短(自定义)重试周期并onFailure更快地触发事件？

Answer 1

是的,您可以使用以下setMaximum{OPERATION}RetryTimeMillis()方法配置上载,下载和其他操作的超时:

FirebaseStorage storage = FirebaseStorage.getInstance();
storage.setMaxDownloadRetryTimeMillis(60000);  // wait 1 min for downloads
storage.setMaxOperationRetryTimeMillis(10000);  // wait 10s for normal ops
storage.setMaxUploadRetryTimeMillis(120000);  // wait 2 mins for uploads

有关更多信息,请参阅参考文档,