110 lines
3.2 KiB
Markdown
110 lines
3.2 KiB
Markdown
---
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title: Reuse Port
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sidebar_label: Reuse Port
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hide_title: false
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hide_table_of_contents: false
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---
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# Reuse Port
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You can use REUSE_PORT for different use scenarios.
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## For Edge Server
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The [performance of SRS2](https://github.com/ossrs/srs/tree/2.0release#performance) is improved huge, but is it enough?
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Absolutely NOT! In SRS3, we provide [OriginCluster](./sample-origin-cluster.md) for multiple origin servers to work together,
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and [go-oryx](https://github.com/ossrs/go-oryx) as a tcp proxy for edge server, and these are not good enough, so we support
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SO_REUSEPORT feature for multiple processes edge server.
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> Remark: The SO_REUSEPORT requires Linux Kernel 3.9+, so you should upgrade your kernel for CentOS6, or you could choose Ubuntu20.
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First, we start a edge server which listen at 1935:
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```
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./objs/srs -c conf/edge.conf
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```
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Then, at the same server, start another edge server which also listen at 1935:
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```
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./objs/srs -c conf/edge2.conf
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```
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> Note: They should use different pid file, or it will fail to start the second edge server.
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There are two SRS edge servers:
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```
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[root@bf2e88b31f9b trunk]# ps aux|grep srs
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root 381 0.1 0.0 19888 5752 pts/2 S+ 08:03 0:01 ./objs/srs -c conf/edge.conf
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root 383 0.0 0.0 19204 5468 pts/1 S+ 08:04 0:00 ./objs/srs -c conf/edge2.conf
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[root@bf2e88b31f9b trunk]# lsof -p 381
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srs 381 root 7u IPv6 18835 0t0 TCP *:macromedia-fcs (LISTEN)
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[root@bf2e88b31f9b trunk]# lsof -p 383
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srs 383 root 7u IPv6 17831 0t0 TCP *:macromedia-fcs (LISTEN)
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```
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After that, we start the origin server, from which these edge server to pull streams:
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```
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./objs/srs -c conf/origin.conf
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```
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Finally, we could publish to origin/edge, and play stream from each edge server:
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```
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for((;;)); do \
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./objs/ffmpeg/bin/ffmpeg -re -i ./doc/source.flv \
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-c copy \
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-f flv rtmp://192.168.1.170/live/livestream; \
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sleep 1; \
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done
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```
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Use VLC to play the RTMP stream: `rtmp://192.168.1.170:1935/live/livestream`
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## For Origin Server
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You can use REUSE_PORT in Origin Server. Each Origin Server is isolated, only works for HLS:
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```
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+-----------------+
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Client --->-- + Origin Servers +------> Player
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+-----------------+
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```
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> Note: If need to deliver RTMP or HTTP-FLV, pelease use [OriginCluster](./sample-origin-cluster.md).
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Start the first Origin Server, listen at `1935` and `8080`, covert RTMP to HLS:
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```bash
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./objs/srs -c conf/origin.hls.only1.conf
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```
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Start the second Origin Server, listen at `1935` and `8080`, covert RTMP to HLS:
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```bash
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./objs/srs -c conf/origin.hls.only2.conf
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```
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Publish stream to origin, system will select a random Origin Server:
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```bash
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./objs/ffmpeg/bin/ffmpeg -re -i ./doc/source.flv -c copy -f flv rtmp://localhost/live/livestream1
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```
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Publish another stream to origin, system will select a random Origin Server:
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```bash
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./objs/ffmpeg/bin/ffmpeg -re -i ./doc/source.flv -c copy -f flv rtmp://localhost/live/livestream2
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```
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> Note: It works only for HLS, please use [OriginCluster](./sample-origin-cluster.md) for RTMP or HTTP-FLV.
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