如何改善我的视频上传功能,目前应用程序会因内存使用情况而崩溃

Question

我目前正在从我的应用程序(android)上传视频,这会导致应用程序崩溃,试图弄清楚如何使其在两端,应用程序和服务器端都高效...在一天结束时它会上传视频但崩溃的应用程序或服务器取决于哪一个内存耗尽.

Stack - Java,改造,Node.js,knox,heroku,amazonS3

对于客户端android :(翻译,java):

休息文件:

@Multipart
        @POST("/addMedia")
        public void addMedia(
                @Part("name") String name,
                @Part("categ") String category,
                @Part("desc") String desc,
                @Part("creatorId") String creatorId,
                @Part("isItAPicture") String isItAPicture, //if true it is a picture
                @Part("mediaFile") TypedFile mediaFile,
                Callback<UserResponse> callback);

创建类文件:

  ApiManager.getAsyncApi().addMedia(title, categ, descr, creatorId, String.valueOf(isPictureNotvideo), media, new Callback<UserResponse>() {
            @Override
            public void success(UserResponse userResponse, Response response) {
             \
            }

            @Override
            public void failure(RetrofitError error) {
throw error;
            }
        });

服务器端(Node.js,heroku,AmazonS3,knox模块)

var s3 = knox.createClient({
    key: config.amazonS3.key,
    secret: config.amazonS3.secret,
    bucket:config.amazonS3.bucketMedia
});






function setupAndCreateMedia ( cb) {
    if(req.files && req.files.mediaFile) {
        console.log("Received file:\n" + JSON.stringify(req.files));
        //add p for pics will do v for vids
        videoID = "v" + path.basename(req.files.mediaFile.path);
        tmp_path = req.files.mediaFile.path;
        targetPathSmall = './public/img/media/' + videoID;
        videoConvert = req.files.mediaFile.name;
        var video = req.files.mediaFile;
        var s3Headers = {
            'Content-Type': video.type,
            'x-amz-acl': 'public-read'
        };
        //console.log('stdout:', stdout, targetPathSmall)
        s3.putStream(targetPathSmall, videoID, s3Headers, function(err, s3response){
        //handle, respond
            if(err) { 
                console.log(err);
            } else {
                console.log("saved to S3");
                //console.log(s3response);
                cb(null, videoID);
            }
        });
    } else {
        videoID = "";
        cb(null, videoID);
    }
}

这是android上的崩溃消息:

Caused by: java.lang.OutOfMemoryError: Failed to allocate a 48298892 byte allocation with 16777216 free bytes and 44MB until OOM

Answer 1

问题可能是由日志记录引起的.Retrofit的记录器读取您的视频二进制文件,此处引发了OOM异常.

要防止它,请使用以下方法禁用restAdapter的日志:

setLogLevel(LogLevel.NONE)

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