What is a single-channel video server?
A single-channel video server is a server that specializes in processing a single video stream. This server is only responsible for receiving, encoding, storing or forwarding one video signal, unlike a multi-channel server that can process multiple video streams at the same time. It is usually used in scenarios where a single video source needs to be processed stably, such as a high-end surveillance camera that only connects to one key area, or a single ultra-clear picture is pushed in a professional live broadcast. The characteristics are concentrated resources, low latency, and guaranteed image quality, but the cost is high, and one machine must be equipped for one channel.
If the demand for Internet live broadcast/on-demand is surging. Whether it is used for professional corporate applications or personal needs, they are also encountering more and more problems.
One of the users was using Internet live broadcast, and the single-channel video had an unresponsive problem when the number of online users reached about 300, and the server reported a 500 error. After restarting the system, the service will hang up again.
Problem analysis: Why does a single-channel video server have a connection error?
The system use and concurrency of the Internet live broadcast/on-demand platform are both in the local area network, and users use browsers to watch. By checking the running log, 300 connections have 500 errors, which is caused by too many http requests opened at the bottom layer, also known as too many files opened by the Linux system, causing database access failure, and the entire program cannot be executed normally. So how to choose a cost-effective single-channel video server for video server rental?
What configuration does a single-channel video server require?
1. Single-channel quad-core video server
The single-channel quad-core video server has a tower design. It comes standard with an Intel® Xeon® E5-1620 quad-core processor, 3.5GHz main frequency, 3.6GHz turbo frequency, and 10MB high-speed smart cache. The Xeon processor E5 1620V3 processor has a significant performance improvement over the V2 product; through the latest memory standard DDR4, it supports faster data rates than the previous generation processor; monitors and limits energy consumption through Intel Node Manager 3.0; with the help of Intel Advanced Vector Extensions 2 (Intel AVX2), it provides high-performance computing capabilities for enterprise workloads.
2. Video server memory
It comes standard with 8GB DDR4 REG ECC memory, which can be expanded to 512GB at most. It supports four-channel memory technology. When equipped with four memory sticks, memory bandwidth will not become a bottleneck of performance. Since the frequency of the memory controller is higher than that of the previous generation, its overall performance is improved.
3. Video server storage
It comes standard with a SATA 1T large-capacity hard disk with a 6Gb/s interface and a hard disk cache of 128M, which has very strong performance. It supports SATA & SSD & SAS RAID 0, 1, 10, 5 array levels, and users can get more reliable information protection and faster read and write speeds. It is equipped with a DVD-ROM optical drive, which is convenient for users to read data regularly. It has a 6-slot design to ensure sufficient space for data storage and expansion.
4. Video server network
The single-channel quad-core tower server has dual Gigabit network interfaces, which meets the requirements of most users for high-speed network I/O and high-concurrency data transmission during cluster computing.
Single-channel video server standard support
The video encoding acceleration service supports H.265 and H.264 encoding standards, and provides high-quality, high-density, and low-latency hardware encoders to support a variety of application scenarios to meet customers' different encoding needs.
Support for ultra-high definition: In the field of 4K ultra-high definition, hardware encoders can greatly improve the efficiency of video encoding. The video encoding acceleration service supports AV1 and H.265 standards, helping the video industry to quickly move towards high definition. H.265 has been commercialized, and AV1 will provide a public beta version in Q3 of 2019.
Real-time and efficient: For live broadcast scenarios, encoding tasks have great real-time pressure. Hardware encoders can provide industry-leading compression ratios on the basis of meeting real-time requirements and improve user experience.
High performance: In the field of short videos, video head removal brings great business pressure to short video encoding. High-performance hardware video encoders can help short video platforms calmly cope with large-scale encoding needs, improve image quality and user experience, and reduce the space cost of video storage.
