the figure is as follows: def update_model(rdd),mixture_model: it s OK to declare mixture_model directly in update_model, but every time you foreachRDD, you need to re-declare MingleModel. Makes it impossible to update the model in real time ...

1. Json data is now available as follows { "id ": 11, "data ": [{ "package ": "com.browser1 ", "activetime ": 60000}, { "package ": "com.browser6 ", "activetime ": 1205000}, { "package ": "com.browser7 ", "activetime ": 1205000}]} { "id ": 12...

purpose: there are two large pieces of data in spark that require join,. Both input data contain the field userid. Now you need to associate them according to userid. I hope to avoid shuffle. completed: I pre-processed two pieces of data into 1w f...

Code: if (navigator.getUserMedia) { navigator.getUserMedia( constraints { video: true, audio: true }, successCallback function (localMediaStream...

error log com.slhan.service.BusinessService the 341 line is to get the value of the broadcast variable 18 09 08 13:50:02 ERROR scheduler.JobScheduler: Error running job streaming job 1536385800000 ms.1 java.io.IOException: com.esotericsoftware.kr...

implement streaming media resources that play RTMP, RTSP and HTTP protocols on the front-end page ...

problem description recently encountered a very tricky video APP-- Mobile Cinema while practicing crawler skills. In my limited knowledge, fiddler , Xposed , JustTrustMe and other tools all failed in the face of this APP. Is there any great god ...

the data source is kafka, and a field is a timestamp. We want to calculate the difference between the timestamps of the two pieces of data, and then add a new field to store this value and send it out. I checked. Do you want to reducebykeyandwindow? Wit...

I just used spark streaming. I have a few questions about checkpoint: There are two types of checkpoint, one for meta for driver and one for data. The manual says that the checkpoint of data will be written only if you use stateful transformation. So...

use a Mediawiki environment built by Aliyun machine, and the page can be accessed normally. However, when you enter a keyword in the search input box in the upper right corner of the home page to search, it prompts "database query error. This may indica...

1.1: 3.4: ? : :; :3.2,APP ; ? ...

how to transcode from video to audio with pure JavaScript? (for example, mp4 to wav) PS: my goal is to grab the sound of the video from the web page into audio, and then recognize the text through platforms such as iFLYTEK. ...

I installed XAMPP, and MediaWiki in Windows. It s slow if you don t have to visit some pages for a long time. Enabling OPcache and APCu is much faster, but the first visit after a long absence is still relatively slow. It s not the first time to open ...

when I read the introduction to AVPacket in the FFmpeg document, I saw this sentence: For video, it should typically contain one compressed frame. For audio it may contain several compressed frames. for video, it contains one compressed frame; for au...

when I see Audio Example in SDL2, I have some doubts about some of the code. The code is as follows: sdl_audio_example.c -sharpdefine MAX_AUDIO_FRAME_SIZE 192000 TODO: 1. TODO: 2. audio_chunkaudio_pos = out_buffer?? static Uint8 *audio_ch...

response.js needs to be on the server to solve the media query problem. If you upload the local front-end code to the cloud service platform, you will have a url address 1. Will response.js still be executed at this time? Or do you need to write your own...