Firebase存储的上传/下载速度非常慢

Question

UploadTask originalUpload = originalDestination.putFile(Uri.fromFile(originalSource));
            mCurrentUploadTask = originalUpload;
            originalUpload.addOnProgressListener(mOnProgressUpdateListener);
originalUpload.addOnSuccessListener(mOriginalSuccessListener);

Tasks.await(originalUpload);

问题所在

问题很怪异，出乎意料。上传/下载工作完美，但非常慢。

我在一个良好的互联网连接1MBps，但这些文件从来没有以这种速度传输。它大约是100-150KBps，这几乎是我的网络可用速度的15%。

com.google.firebase.storage.StorageException: An unknown error occurred, please check the HTTP result code and inner exception for server response.

Read error: ssl=0xb7e7a510: I/O error during system call, Connection timed out
                                                                           javax.net.ssl.SSLException: Read error: ssl=0xb7e7a510: I/O error during system call, Connection timed out
                                                                               at com.android.org.conscrypt.NativeCrypto.SSL_read(Native Method)
                                                                               at com.android.org.conscrypt.OpenSSLSocketImpl$SSLInputStream.read(OpenSSLSocketImpl.java:699)
                                                                               at com.android.okio.Okio$2.read(Okio.java:113)
                                                                               at com.android.okio.RealBufferedSource.read(RealBufferedSource.java:48)
                                                                               at com.android.okhttp.internal.http.HttpConnection$FixedLengthSource.read(HttpConnection.java:446)
                                                                               at com.android.okio.RealBufferedSource$1.read(RealBufferedSource.java:168)
                                                                               at java.io.InputStream.read(InputStream.java:162)
                                                                               at com.google.firebase.storage.FileDownloadTask.run(Unknown Source)
                                                                               at com.google.firebase.storage.StorageTask$5.run(Unknown Source)
                                                                               at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
                                                                               at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
                                                                               at java.lang.Thread.run(Thread.java:818)

请注意，我没有更改上载和下载的超时设置。他们违约了。

Answer 1

我提出这一点并不是要反驳你的意见，只是作为一个比较的观点。作为测试，我使用下面的代码上传了一个~50MB的文件，并对进度进行计时。测试是在带有家庭WiFi连接的三星Galaxy S3(4.4.2)上运行的（加州）。平均吞吐量约为760KB/sec。

我在使用相同网络的其他电话设备上运行了相同的测试，吞吐量从300KB/sec到850KB/sec（Moto X Pure；Marshmallow）。

private void uploadTest() {
    // This file is ~50MB
    final File file = new File("/storage/emulated/0/DCIM/Camera/20160821_101145.mp4");
    // Upload the file
    Log.i(TAG, String.format("uploadTest: Starting upload of %5.2fMB file",
            file.length()/1024.0/1024.0));

    FirebaseStorage.getInstance().getReference("test").putFile(Uri.fromFile(file))
            .addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                @Override
                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                    Log.i(TAG, "onSuccess: Done");
                }
            }).addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
        @Override
        public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
            Log.i(TAG, String.format("onProgress: %5.2f MB transferred",
                    taskSnapshot.getBytesTransferred()/1024.0/1024.0));
        }
    });
}

这是生成的logcat，删除了一些进度线以使列表更紧凑：

08-21 11:39:17.539 18427-18427/com.qbix.test I/MainActivity: uploadTest: Starting upload of 51.79MB file
08-21 11:39:17.559 18427-18427/com.qbix.test I/MainActivity: onProgress:  0.00 MB transferred
08-21 11:39:25.117 18427-18427/com.qbix.test I/MainActivity: onProgress:  5.00 MB transferred
08-21 11:39:31.654 18427-18427/com.qbix.test I/MainActivity: onProgress: 10.00 MB transferred
08-21 11:39:38.711 18427-18427/com.qbix.test I/MainActivity: onProgress: 15.00 MB transferred
08-21 11:39:45.088 18427-18427/com.qbix.test I/MainActivity: onProgress: 20.00 MB transferred
08-21 11:39:51.375 18427-18427/com.qbix.test I/MainActivity: onProgress: 25.00 MB transferred
08-21 11:39:57.411 18427-18427/com.qbix.test I/MainActivity: onProgress: 30.00 MB transferred
08-21 11:40:03.408 18427-18427/com.qbix.test I/MainActivity: onProgress: 35.00 MB transferred
08-21 11:40:10.886 18427-18427/com.qbix.test I/MainActivity: onProgress: 40.00 MB transferred
08-21 11:40:17.233 18427-18427/com.qbix.test I/MainActivity: onProgress: 45.00 MB transferred
08-21 11:40:23.069 18427-18427/com.qbix.test I/MainActivity: onProgress: 50.00 MB transferred
08-21 11:40:25.792 18427-18427/com.qbix.test I/MainActivity: onProgress: 51.79 MB transferred
08-21 11:40:25.792 18427-18427/com.qbix.test I/MainActivity: onSuccess: Done