Https下载大文件失败

@rantianhua is already working on this.

Since Feb 3, 2019.

你好，最近与后台使用https传输一个大概500M的文件，出现了返回timeout的错误，而后台有打印出客户端已正在下载的日志，我这边使用issues #437的下载地址https://f.qr2c.cn/data/uploads/paper/2016/12/27/5861c2082ac92.zip 能下载成功(文件大小1.27M，还有另外一个80M的https的文件也下载成功)，
然后使用android studio的下载地址https://dl.google.com/dl/android/studio/install/2.3.3.0/android-studio-bundle-162.4069837-windows.exe 下载失败(文件大小2.2G)，https的证书验证已设置为全部信任。以下是失败的打印日志：

09-07 11:13:33.343 26381-26381/? I/art: Late-enabling -Xcheck:jni
09-07 11:13:33.366 26381-26381/? E/Environment: canonicalPath = /storage/sdcard
09-07 11:13:33.387 26381-26389/? I/art: Debugger is no longer active
09-07 11:13:33.395 26381-26381/? W/ResourcesManager: Asset path '/system/framework/android.test.runner.jar' does not exist or contains no resources.
09-07 11:13:34.708 26381-26381/package:filedownloader D/FileDownloader.FileDownloadProperties: not found filedownloader.properties
09-07 11:13:34.709 26381-26381/package:filedownloader I/FileDownloader.FileDownloadProperties: init properties 38
load properties: http.lenient=FALSE; process.non-separate=FALSE; download.min-progress-step=65536; download.min-progress-time=2000; download.max-network-thread-count=3
09-07 11:13:34.737 26381-26381/package:filedownloader D/FileDownloader.FileDownloadUtils: can't continue 1017099751 file not suit, exists[FALSE], directory[FALSE]
09-07 11:13:34.738 26381-26381/package:filedownloader D/FileDownloader.FileDownloadUtils: can't continue 1017099751 file not suit, exists[FALSE], directory[FALSE]
09-07 11:13:34.741 26381-26381/package:filedownloader D/FileDownloader.MaintainerIterator: delete 1017099751
09-07 11:13:34.756 26381-26381/package:filedownloader D/FileDownloader.FileDownloadDatabase: refreshed data count: 0 , delete data count: 1, reset id count: 0. consume 22
09-07 11:13:34.809 26381-26396/package:filedownloader D/FileDownloader.FileDownloadManager: request start the task with url(https://dl.google.com/dl/android/studio/install/2.3.3.0/android-studio-bundle-162.4069837-windows.exe) path(/sdcard/temp) isDirectory(FALSE)
09-07 11:13:34.870 26381-26422/package:filedownloader D/FileDownloader.FileDownloadUtils: can't continue 2060627265 file not suit, exists[FALSE], directory[FALSE]
09-07 11:13:34.880 26381-26422/package:filedownloader D/FileDownloader.DownloadMgrInitialParams: initial FileDownloader manager with the customize connection creator: cn.dreamtobe.filedownloader.OkHttp3Connection$Creator@36cf0008
09-07 11:13:34.917 26381-26422/package:filedownloader D/FileDownloader.ConnectTask: 2060627265 request header {range=[bytes=0-]}
09-07 11:13:35.610 26381-26422/package:filedownloader D/FileDownloader.FileDownloadUtils: etag find "14388e" for task(2060627265)
09-07 11:13:35.842 26381-26394/package:filedownloader I/art: Background sticky concurrent mark sweep GC freed 14947(1090KB) AllocSpace objects, 4(64KB) LOS objects, 13% free, 5MB/6MB, paused 6.939ms total 269.176ms
09-07 11:13:35.861 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: fetch data with multiple connection(count: [5]) for task[2060627265] totalLength[2020009280]
09-07 11:13:35.885 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: enable multiple connection: id[2060627265] index[0] range[0, 404001855) current offset(0)
09-07 11:13:35.886 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: enable multiple connection: id[2060627265] index[1] range[404001856, 808003711) current offset(404001856)
09-07 11:13:35.891 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: enable multiple connection: id[2060627265] index[2] range[808003712, 1212005567) current offset(808003712)
09-07 11:13:35.897 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: enable multiple connection: id[2060627265] index[3] range[1212005568, 1616007423) current offset(1212005568)
09-07 11:13:35.903 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: enable multiple connection: id[2060627265] index[4] range[1616007424, 0) current offset(1616007424)
09-07 11:13:35.928 26381-26451/package:filedownloader D/FileDownloader.ConnectTask: 2060627265 request header {range=[bytes=1212005568-1616007423]}
09-07 11:13:35.966 26381-26389/package:filedownloader W/art: Suspending all threads took: 7.576ms
09-07 11:13:35.997 26381-26452/package:filedownloader D/FileDownloader.ConnectTask: 2060627265 request header {range=[bytes=1616007424-]}
09-07 11:13:36.006 26381-26450/package:filedownloader D/FileDownloader.ConnectTask: 2060627265 request header {range=[bytes=808003712-1212005567]}
09-07 11:13:36.011 26381-26448/package:filedownloader D/FileDownloader.ConnectTask: 2060627265 request header {range=[bytes=0-404001855]}
09-07 11:13:36.030 26381-26449/package:filedownloader D/FileDownloader.ConnectTask: 2060627265 request header {range=[bytes=404001856-808003711]}
09-07 11:13:40.854 26381-26393/package:filedownloader I/art: WaitForGcToComplete blocked for 15.118ms for cause HeapTrim
09-07 11:13:40.927 26381-26394/package:filedownloader I/art: Background partial concurrent mark sweep GC freed 23(832B) AllocSpace objects, 0(0B) LOS objects, 21% free, 14MB/18MB, paused 5.325ms total 55.757ms
09-07 11:13:41.849 26381-26451/package:filedownloader D/FileDownloader.DownloadRunnable: the connection[3] for 2060627265, is connected range[1212005568, 1616007423) current offset[1212005568] with code[206]
09-07 11:13:41.876 26381-26451/package:filedownloader D/FileDownloader.FetchDataTask: start fetch(3): range [1212005568, 1616007423), seek to[1212005568]
09-07 11:13:41.914 26381-26451/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[3] offset[1212009664], consume[26]
09-07 11:13:43.221 26381-26449/package:filedownloader D/FileDownloader.DownloadRunnable: the connection[1] for 2060627265, is connected range[404001856, 808003711) current offset[404001856] with code[206]
09-07 11:13:43.232 26381-26449/package:filedownloader D/FileDownloader.FetchDataTask: start fetch(1): range [404001856, 808003711), seek to[404001856]
09-07 11:13:43.291 26381-26449/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[1] offset[404005952], consume[54]
09-07 11:13:43.714 26381-26448/package:filedownloader D/FileDownloader.DownloadRunnable: the connection[0] for 2060627265, is connected range[0, 404001855) current offset[0] with code[206]
09-07 11:13:43.715 26381-26448/package:filedownloader D/FileDownloader.FetchDataTask: start fetch(0): range [0, 404001855), seek to[0]
09-07 11:13:43.753 26381-26450/package:filedownloader D/FileDownloader.DownloadRunnable: the connection[2] for 2060627265, is connected range[808003712, 1212005567) current offset[808003712] with code[206]
09-07 11:13:43.754 26381-26450/package:filedownloader D/FileDownloader.FetchDataTask: start fetch(2): range [808003712, 1212005567), seek to[808003712]
09-07 11:13:43.798 26381-26450/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[2] offset[808007265], consume[41]
09-07 11:13:44.093 26381-26448/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[0] offset[66375], consume[22]
09-07 11:13:44.354 26381-26452/package:filedownloader D/FileDownloader.DownloadRunnable: the connection[4] for 2060627265, is connected range[1616007424, 0) current offset[1616007424] with code[206]
09-07 11:13:44.356 26381-26452/package:filedownloader D/FileDownloader.FetchDataTask: start fetch(4): range [1616007424, 0), seek to[1616007424]
09-07 11:13:44.392 26381-26452/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[4] offset[1616011520], consume[20]
09-07 11:13:45.292 26381-26449/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[1] offset[405419995], consume[53]
09-07 11:13:46.125 26381-26448/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[0] offset[262983], consume[22]
09-07 11:13:47.369 26381-26449/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[1] offset[406626849], consume[101]
09-07 11:13:47.370 26381-26394/package:filedownloader I/art: Background sticky concurrent mark sweep GC freed 4930(1741KB) AllocSpace objects, 0(0B) LOS objects, 9% free, 16MB/18MB, paused 5.555ms total 57.621ms
09-07 11:13:48.147 26381-26448/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[0] offset[667200], consume[43]
09-07 11:13:49.337 26381-26449/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[1] offset[407944512], consume[66]
09-07 11:13:50.878 26381-26448/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[0] offset[1116332], consume[79]
09-07 11:13:51.302 26381-26449/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[1] offset[409303182], consume[27]
09-07 11:13:52.876 26381-26448/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[0] offset[1445355], consume[72]
09-07 11:13:53.320 26381-26449/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[1] offset[410492130], consume[37]
09-07 11:13:53.661 26381-26451/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[3] offset[1212922527], consume[31]
09-07 11:13:53.689 26381-26449/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[1] offset[410806320], consume[10]
09-07 11:13:53.911 26381-26448/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[0] offset[1707499], consume[10]
09-07 11:13:54.415 26381-26452/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[4] offset[1616039647], consume[19]
09-07 11:13:54.416 26381-26452/package:filedownloader D/FileDownloader.DownloadStatusCallback: require callback -1 but the host thread of the flow has already dead, what is occurred because of there are several reason can final this flow on different thread.
09-07 11:13:54.447 26381-26450/package:filedownloader D/FileDownloader.FetchDataTask: require sync id[2060627265] index[2] offset[808040033], consume[9]
09-07 11:13:54.454 26381-26450/package:filedownloader D/FileDownloader.DownloadStatusCallback: require callback -1 but the host thread of the flow has already dead, what is occurred because of there are several reason can final this flow on different thread.
09-07 11:13:54.460 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: finish sub-task for [2060627265] TRUE FALSE
09-07 11:13:54.461 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: finish sub-task for [2060627265] TRUE FALSE
09-07 11:13:54.466 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: finish sub-task for [2060627265] TRUE FALSE
09-07 11:13:54.469 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: finish sub-task for [2060627265] TRUE FALSE
09-07 11:13:54.483 26381-26422/package:filedownloader D/FileDownloader.DownloadLaunchRunnable: finish sub-task for [2060627265] TRUE FALSE
09-07 11:14:04.160 26381-26389/package:filedownloader W/art: Suspending all threads took: 37.507ms

望协助分析，谢谢！