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ossrs / srs

SRS is a simple, high-efficiency, real-time media server supporting RTMP, WebRTC, HLS, HTTP-FLV, HTTP-TS, SRT, MPEG-DASH, and GB28181.
https://ossrs.io
MIT License
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When switching live streams, the edge server encounters an error while retrieving the source_url. #4011

Open HunterTang opened 8 months ago

HunterTang commented 8 months ago

Describe the bug When I perform some transcoding on the origin using ffmpeg (exec), then locally forward it to the SRS's 1945 port as the origin, with an edge server configured in remote mode, when I attempt to switch live streams on the edge server (these live streams have similar names like AAA_BBB_id_CCC), the switch is not successful. It always sticks to the first stream. This issue exists in version 5.0 but not in version 4.0, and even if version 4.0 is used as the origin, the issue persists with version 5.0 on the edge server.

Version 5.0_b1(has bug) 5.0_r1(has bug) 4.0_r4(ok) 4.0_r1(ok)

Topology image

Conf

# origin - ffmpeg
 application imlive {
            live on;
            exec_push ffmpeg -i rtmp://localhost/imlive/$name -ar 22050 -c:a libmp3lame -f flv rtmp://localhost:1945/imlive/$name;
}

# origin-srs
listen              1945;
max_connections     10000;
pid                 /mnt/srs/srs.pid;
srs_log_tank        file;
srs_log_file        /mnt/srs/log/srs.log;
daemon              on;
http_api {
    enabled         on;
    listen          1985;
}
http_server {
    enabled         on;
    listen          8080;
    dir             /usr/local/srs/objs/nginx/html;
}
vhost __defaultVhost__ {
    cluster {
        mode            local;
        origin_cluster  on;
        coworkers       172.17.201.217:1985;
    }
    http_remux {
        enabled     on;
        mount       [vhost]/[app]/[stream].flv;
    }
}

# edge-srs
listen              1945;
max_connections     10000;
pid                 /mnt/srs/srs.pid;
srs_log_tank        file;
srs_log_file        /mnt/srs/log/srs.log;
daemon              on;
http_api {
    enabled         on;
    listen          1985;
}
http_server {
    enabled         on;
    listen          8080;
    crossdomain     off;
    dir             /usr/local/srs/objs/nginx/html;
}
vhost __defaultVhost__ {
    cluster {
        mode      remote;
        origin    172.17.245.180:1945 172.17.201.217:1945;
    }
    http_remux {
        enabled     on;
        mount       [vhost]/[app]/[stream].flv;
    }
}

Additional context

summary

# 5.0 
source url=/imlive/WavMain, is_edge=1, source_id=7403554d/8xjj8788
# 4.0
flv: source url=/imlive/WavMain.exe_rooms_290_20240402, is_edge=1, source_id=/es59rq63

5.0

[2024-04-02 19:43:05.844][INFO][29621][e47c405x] HTTP #0 127.0.0.1:27410 GET http://xxxxxx/imlive/WavMain.exe_rooms_290_20240402.flv, content-length=-1
[2024-04-02 19:43:05.844][INFO][29621][e47c405x] flv: source url=/imlive/WavMain, is_edge=1, source_id=7403554d/8xjj8788
[2024-04-02 19:43:05.844][INFO][29621][e47c405x] flv: source url=/imlive/WavMain, is_edge=1, source_id=7403554d/8xjj8788
...
[2024-04-02 19:43:24.223][INFO][29621][5184170j] HTTP #0 127.0.0.1:27416 GET http://xxxxxx/imlive/WavMain.exe_rooms_311_20240402.flv, content-length=-1
[2024-04-02 19:43:24.223][INFO][29621][5184170j] flv: source url=/imlive/WavMain, is_edge=1, source_id=7403554d/8xjj8788
[2024-04-02 19:43:24.223][INFO][29621][5184170j] flv: source url=/imlive/WavMain, is_edge=1, source_id=7403554d/8xjj8788
...
[2024-04-02 19:43:46.255][INFO][29621][w0597f2j] HTTP #0 127.0.0.1:27424 GET http://xxxxxx/imlive/WavMain.exe_rooms_222_20240402.flv, content-length=-1
[2024-04-02 19:43:46.255][INFO][29621][w0597f2j] flv: source url=/imlive/WavMain, is_edge=1, source_id=7403554d/8xjj8788
[2024-04-02 19:43:46.255][INFO][29621][w0597f2j] flv: source url=/imlive/WavMain, is_edge=1, source_id=7403554d/8xjj8788

4.0

[2024-04-02 19:45:34.395][Trace][30211][56w455dt] HTTP #0 127.0.0.1:27468 GET http://fxxxxxx/imlive/WavMain.exe_rooms_282_20240402.flv, content-length=-1
[2024-04-02 19:45:34.395][Trace][30211][56w455dt] new source, stream_url=/imlive/WavMain.exe_rooms_282_20240402
[2024-04-02 19:46:05.834][Trace][30211][11916v31] HTTP #0 127.0.0.1:27500 GET http://xxxxxx/WavMain.exe_rooms_290_20240402.flv, content-length=-1
[2024-04-02 19:46:05.834][Trace][30211][11916v31] FLV /imlive/WavMain.exe_rooms_290_20240402.flv, encoder=FLV, nodelay=0, mw_sleep=350ms, cache=0, msgs=128
[2024-04-02 19:46:11.115][Trace][30211][za6t6937] HTTP #0 127.0.0.1:27502 GET http://xxxxxx/imlive/WavMain.exe_rooms_290_20240402.flv, content-length=-1
[2024-04-02 19:46:11.115][Trace][30211][za6t6937] flv: source url=/imlive/WavMain.exe_rooms_290_20240402, is_edge=1, source_id=/es59rq63
[2024-04-02 19:46:11.115][Trace][30211][za6t6937] FLV /imlive/WavMain.exe_rooms_290_20240402.flv, encoder=FLV, nodelay=0, mw_sleep=350ms, cache=0, msgs=128
[2024-04-02 19:46:11.115][Trace][30211][za6t6937] update source_id=za6t6937/es59rq63
[2024-04-02 19:46:14.337][Trace][30211][1alr0394] HTTP #0 127.0.0.1:27508 GET http://xxxxxx/imlive/WavMain.exe_rooms_282_20240402.flv, content-length=-1
[2024-04-02 19:46:14.337][Trace][30211][1alr0394] flv: source url=/imlive/WavMain.exe_rooms_282_20240402, is_edge=1, source_id=/37y12141
[2024-04-02 19:46:14.337][Trace][30211][1alr0394] FLV /imlive/WavMain.exe_rooms_282_20240402.flv, encoder=FLV, nodelay=0, mw_sleep=350ms, cache=0, msgs=128
[2024-04-02 19:46:14.337][Trace][30211][1alr0394] update source_id=1alr0394/37y12141
winlinvip commented 8 months ago

Sorry, you only describe the final states and logs, how to reproduce it step by step? There should be a reproduce step that is to describe the steps.

HunterTang commented 8 months ago

@winlinvip Sorry for forgetting to add the steps

steps

test according to the following topology:

origin: 172.17.245.180 - edge: 172.17.245.182

Here are some issues with the origin:

  1. I used nginx_rtmp (exec ffmpeg) on the origin to convert the same stream into 3 different streams as shown below.

    ffmpeg -i rtmp://localhost/imlive/WavMain.exe_rooms_282_20240403 -ar 22050 -c:a libmp3lame -f flv rtmp://localhost:1945/imlive/WavMain.exe_rooms_282_20240403
ffmpeg -i rtmp://localhost/imlive/WavMain.exe_rooms_282_20240403 -ar 22050 -c:a libmp3lame -f flv rtmp://localhost:1945/imlive/WavMain.exe_rooms_283_20240403
ffmpeg -i rtmp://localhost/imlive/WavMain.exe_rooms_282_20240403 -ar 22050 -c:a libmp3lame -f flv rtmp://localhost:1945/imlive/WavMain.exe_rooms_284_20240403

  2. When I use SRS 4.0, I can see the following on the console: 1712123267878

  3. When I use SRS 5.0, I can see the following on the console: 1712123267883

It seems that SRS 5.0 only recognizes one of the streams.

Here are some issues with the edge:

Considering the incomplete stream recognition on the origin with SRS 5.0, I switched the origin to 4.0 and then started testing the edge with 5.0.

  1. When I pull the following 3 streams separately via flv, I see the following on the console. 1712123267887 1712123267891 1712123267896

  2. I saw the switch records in the log as follows.

[2024-04-03 13:17:54.393][INFO][21177][348dms90] HTTP #0 10.202.100.189:58167 GET http://172.17.245.182:8080/imlive/WavMain.exe_rooms_283_20240403.flv, content-length=-1
[2024-04-03 13:17:54.393][INFO][21177][348dms90] flv: source url=/imlive/WavMain, is_edge=1, source_id=vb84bv6q/9jnmn8eg
[2024-04-03 13:17:54.393][INFO][21177][348dms90] flv: source url=/imlive/WavMain, is_edge=1, source_id=vb84bv6q/9jnmn8eg

[2024-04-03 13:18:10.050][INFO][21177][8545n554] HTTP #0 10.202.100.189:58176 GET http://172.17.245.182:8080/imlive/WavMain.exe_rooms_284_20240403.flv, content-length=-1
[2024-04-03 13:18:10.050][INFO][21177][8545n554] flv: source url=/imlive/WavMain, is_edge=1, source_id=vb84bv6q/9jnmn8eg
[2024-04-03 13:18:10.051][INFO][21177][8545n554] flv: source url=/imlive/WavMain, is_edge=1, source_id=vb84bv6q/9jnmn8eg
HunterTang commented 8 months ago

I am currently using version 271 of SRS4. I am using the HTTP-API to retrieve some service information. I have noticed that for the same stream access, the PageUrl is the same, even though my Nginx logs only record one access.

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