[技术咨询] IPC上的rtsp流转为webrtc,在webrtc还没播出来时就提示mediakit::WebRtcSession on err: 255(message too long)

[pandalee86]

咨询的功能模块

• 大华或者海康相机rtsp流转换为webrtc

咨询的具体内容和问题

• （偶现）webrtc连接尚未开始播放即提示mediakit::WebRtcSession on err: 255(message too long)
  注：1）配置文件中[rtsp]已经设置了directProxy=0； 2）使用的是2023/12/11的版本。

log如下：
2024-04-18 14:36:26.879 T [MediaServer] [8-event poller 16] UdpServer.h:40 operator() | 1809-167(10.42.0.1:34534) mediakit::WebRtcSession
2024-04-18 14:36:26.879 I [MediaServer] [8-event poller 16] WebRtcSession.cpp:85 onRecv_l | 1809-167(10.42.0.1:34534)
2024-04-18 14:36:26.880 D [MediaServer] [8-event poller 16] IceServer.cpp:340 HandleTuple | transition from state 'new' to 'connected'
2024-04-18 14:36:26.880 I [MediaServer] [8-event poller 16] WebRtcTransport.cpp:164 OnIceServerSelectedTuple | CioA0H+9AAA=_428 select tuple udp 10.42.0.1:34534
2024-04-18 14:36:26.880 I [MediaServer] [8-event poller 16] WebRtcTransport.cpp:170 OnIceServerConnected | CioA0H+9AAA=_428
2024-04-18 14:36:26.922 E [MediaServer] [8-event poller 16] DtlsTransport.cpp:744 ProcessDtlsData | cannot process data while not running
2024-04-18 14:36:26.946 D [MediaServer] [8-event poller 16] IceServer.cpp:429 HandleTuple | transition from state 'connected' to 'completed'
2024-04-18 14:36:26.946 I [MediaServer] [8-event poller 16] WebRtcTransport.cpp:174 OnIceServerCompleted | CioA0H+9AAA=_428
2024-04-18 14:36:26.946 I [MediaServer] [8-event poller 16] WebRtcTransport.cpp:209 OnDtlsTransportConnecting | CioA0H+9AAA=_428
2024-04-18 14:36:26.946 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:699 Run | running [role:server]
2024-04-18 14:36:26.946 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1411 OnSslInfo | DTLS handshake start
2024-04-18 14:36:26.946 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'before SSL initialization']
2024-04-18 14:36:26.946 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1407 OnSslInfo | role: server, waiting:'before SSL initialization']
2024-04-18 14:36:27.046 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'before SSL initialization']
2024-04-18 14:36:27.046 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client hello']
2024-04-18 14:36:27.046 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server hello']
2024-04-18 14:36:27.046 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write certificate']
2024-04-18 14:36:27.049 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write key exchange']
2024-04-18 14:36:27.049 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write certificate request']
2024-04-18 14:36:27.049 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server done']
2024-04-18 14:36:27.049 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1407 OnSslInfo | role: server, waiting:'SSLv3/TLS write server done']
2024-04-18 14:36:27.049 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:977 SendPendingOutgoingDtlsData | 2117 bytes of DTLS data ready to sent to the peer
2024-04-18 14:36:27.049 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1015 SetTimeout | DTLS timer set in 99ms
2024-04-18 14:36:27.093 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server done']
2024-04-18 14:36:27.094 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client certificate']
2024-04-18 14:36:27.094 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client key exchange']
2024-04-18 14:36:27.094 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read certificate verify']
2024-04-18 14:36:27.094 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read change cipher spec']
2024-04-18 14:36:27.094 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read finished']
2024-04-18 14:36:27.094 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write change cipher spec']
2024-04-18 14:36:27.095 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write finished']
2024-04-18 14:36:27.095 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1415 OnSslInfo | DTLS handshake done
2024-04-18 14:36:27.095 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:977 SendPendingOutgoingDtlsData | 67 bytes of DTLS data ready to sent to the peer
2024-04-18 14:36:27.095 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1166 CheckRemoteFingerprint | valid remote fingerprint
2024-04-18 14:36:27.095 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1340 GetNegotiatedSrtpCryptoSuite | chosen SRTP crypto suite: SRTP_AEAD_AES_256_GCM
2024-04-18 14:36:27.095 I [MediaServer] [8-event poller 16] WebRtcTransport.cpp:191 OnDtlsTransportConnected | CioA0H+9AAA=_428
2024-04-18 14:36:27.106 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1015 SetTimeout | DTLS timer set in 88ms
2024-04-18 14:36:27.122 T [MediaServer] [8-event poller 16] UdpServer.cpp:302 operator() | 1809-167(10.42.0.1:34534) mediakit::WebRtcSession on err: 255(message too long)
2024-04-18 14:36:27.122 W [MediaServer] [8-event poller 16] WebRtcSession.cpp:104 onError | 1809-167(10.42.0.1:34534) 255(message too long)
2024-04-18 14:36:27.122 I [MediaServer] [8-event poller 16] WebRtcTransport.cpp:1158 removeTuple | CioA0H+9AAA=_428 remove tuple 10.42.0.1:34534
2024-04-18 14:36:27.122 I [MediaServer] [8-event poller 16] WebRtcTransport.cpp:183 OnIceServerDisconnected | CioA0H+9AAA=_428
2024-04-18 14:36:27.122 W [MediaServer] [8-event poller 16] WebRtcPlayer.cpp:98 onDestory | RTC播放器(defaultVhost/live/jajzlpph6c)结束播放,耗时(s):0
2024-04-18 14:36:27.122 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:1395 OnSslInfo | sending DTLS warning alert: close notify
2024-04-18 14:36:27.122 D [MediaServer] [8-event poller 16] DtlsTransport.cpp:977 SendPendingOutgoingDtlsData | 31 bytes of DTLS data ready to sent to the peer
2024-04-18 14:36:27.122 W [MediaServer] [8-event poller 16] WebRtcTransport.cpp:497 onSendSockData | send data failed:31
2024-04-18 14:36:27.123 I [MediaServer] [8-event poller 16] WebRtcTransport.cpp:485 ~WebRtcTransportImp | CioA0H+9AAA=_428

[xiongguangjie]

更新最新的代码看看是否解决了，我记得这个提交应该已经解决了 62641f4

[pandalee86]

更新最新的代码看看是否解决了，我记得这个提交应该已经解决了 62641f4

多谢！
我先更新代码试试看。

[pandalee86]

更新最新的代码看看是否解决了，我记得这个提交应该已经解决了 62641f4

我更新了这个提交后，该问题仍然存在。
主要是一个远程vpn访问系统的同事复现的，不知道跟她的网络环境有没有关系。

今天复现的log如下：
Line 130224: 2024-05-08 17:12:29.728 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:498 WebRtcTransportImp | CioAZH+9AAA=_145
Line 130225: 2024-05-08 17:12:29.731 D [MediaServer] [8-event poller 19] WebApi.cpp:296 http api debug |
Line 130396: 2024-05-08 17:12:29.731 T [MediaServer] [8-event poller 19] TcpServer.h:54 operator() | 382-166(10.42.0.139:41806) mediakit::HttpSession
Line 130397: 2024-05-08 17:12:29.731 I [MediaServer] [8-event poller 19] TcpServer.cpp:125 onAcceptConnection | ******** start sock->setOnRead sock:0x7f9a7c30ba70
Line 130398: 2024-05-08 17:12:29.732 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:498 WebRtcTransportImp | CioAZH+9AAA=_146
Line 130399: 2024-05-08 17:12:29.733 D [MediaServer] [8-event poller 19] WebApi.cpp:296 http api debug |
Line 130570: 2024-05-08 17:12:29.792 T [MediaServer] [8-event poller 19] UdpServer.h:40 operator() | 383-169(10.42.0.1:1198) mediakit::WebRtcSession
Line 130571: 2024-05-08 17:12:29.792 I [MediaServer] [8-event poller 19] WebRtcSession.cpp:85 onRecv_l | 383-169(10.42.0.1:1198)
Line 130572: 2024-05-08 17:12:29.792 D [MediaServer] [8-event poller 19] IceServer.cpp:340 HandleTuple | transition from state 'new' to 'connected'
Line 130573: 2024-05-08 17:12:29.792 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:164 OnIceServerSelectedTuple | CioAZH+9AAA=_145 select tuple udp 10.42.0.1:1198
Line 130574: 2024-05-08 17:12:29.792 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:170 OnIceServerConnected | CioAZH+9AAA=_145
Line 130575: 2024-05-08 17:12:29.796 T [MediaServer] [8-event poller 19] UdpServer.h:40 operator() | 384-171(10.42.0.1:49820) mediakit::WebRtcSession
Line 130576: 2024-05-08 17:12:29.797 I [MediaServer] [8-event poller 19] WebRtcSession.cpp:85 onRecv_l | 384-171(10.42.0.1:49820)
Line 130577: 2024-05-08 17:12:29.797 D [MediaServer] [8-event poller 19] IceServer.cpp:340 HandleTuple | transition from state 'new' to 'connected'
Line 130578: 2024-05-08 17:12:29.797 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:164 OnIceServerSelectedTuple | CioAZH+9AAA=_146 select tuple udp 10.42.0.1:49820
Line 130579: 2024-05-08 17:12:29.797 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:170 OnIceServerConnected | CioAZH+9AAA=_146
Line 130580: 2024-05-08 17:12:29.850 E [MediaServer] [8-event poller 19] DtlsTransport.cpp:744 ProcessDtlsData | cannot process data while not running
Line 130581: 2024-05-08 17:12:29.850 E [MediaServer] [8-event poller 19] DtlsTransport.cpp:744 ProcessDtlsData | cannot process data while not running
Line 130582: 2024-05-08 17:12:29.906 D [MediaServer] [8-event poller 19] IceServer.cpp:429 HandleTuple | transition from state 'connected' to 'completed'
Line 130583: 2024-05-08 17:12:29.906 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:174 OnIceServerCompleted | CioAZH+9AAA=_145
Line 130584: 2024-05-08 17:12:29.906 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:226 OnDtlsTransportConnecting | CioAZH+9AAA=_145
Line 130585: 2024-05-08 17:12:29.906 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:699 Run | running [role:server]
Line 130586: 2024-05-08 17:12:29.906 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1411 OnSslInfo | DTLS handshake start
Line 130587: 2024-05-08 17:12:29.906 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'before SSL initialization']
Line 130588: 2024-05-08 17:12:29.906 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1407 OnSslInfo | role: server, waiting:'before SSL initialization']
Line 130589: 2024-05-08 17:12:29.907 D [MediaServer] [8-event poller 19] IceServer.cpp:429 HandleTuple | transition from state 'connected' to 'completed'
Line 130590: 2024-05-08 17:12:29.907 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:174 OnIceServerCompleted | CioAZH+9AAA=_146
Line 130591: 2024-05-08 17:12:29.907 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:226 OnDtlsTransportConnecting | CioAZH+9AAA=_146
Line 130592: 2024-05-08 17:12:29.907 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:699 Run | running [role:server]
Line 130593: 2024-05-08 17:12:29.907 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1411 OnSslInfo | DTLS handshake start
Line 130594: 2024-05-08 17:12:29.907 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'before SSL initialization']
Line 130595: 2024-05-08 17:12:29.907 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1407 OnSslInfo | role: server, waiting:'before SSL initialization']
Line 130596: 2024-05-08 17:12:29.983 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'before SSL initialization']
Line 130597: 2024-05-08 17:12:29.984 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client hello']
Line 130598: 2024-05-08 17:12:29.984 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server hello']
Line 130599: 2024-05-08 17:12:29.984 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write certificate']
Line 130600: 2024-05-08 17:12:29.986 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write key exchange']
Line 130601: 2024-05-08 17:12:29.986 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write certificate request']
Line 130602: 2024-05-08 17:12:29.986 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server done']
Line 130603: 2024-05-08 17:12:29.986 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1407 OnSslInfo | role: server, waiting:'SSLv3/TLS write server done']
Line 130604: 2024-05-08 17:12:29.986 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:977 SendPendingOutgoingDtlsData | 2117 bytes of DTLS data ready to sent to the peer
Line 130605: 2024-05-08 17:12:29.987 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1015 SetTimeout | DTLS timer set in 99ms
Line 130606: 2024-05-08 17:12:29.987 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'before SSL initialization']
Line 130607: 2024-05-08 17:12:29.987 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client hello']
Line 130608: 2024-05-08 17:12:29.987 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server hello']
Line 130609: 2024-05-08 17:12:29.987 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write certificate']
Line 130610: 2024-05-08 17:12:29.989 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write key exchange']
Line 130611: 2024-05-08 17:12:29.990 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write certificate request']
Line 130612: 2024-05-08 17:12:29.990 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server done']
Line 130613: 2024-05-08 17:12:29.990 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1407 OnSslInfo | role: server, waiting:'SSLv3/TLS write server done']
Line 130614: 2024-05-08 17:12:29.990 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:977 SendPendingOutgoingDtlsData | 2117 bytes of DTLS data ready to sent to the peer
Line 130615: 2024-05-08 17:12:29.990 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1015 SetTimeout | DTLS timer set in 99ms
Line 130616: 2024-05-08 17:12:30.033 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server done']
Line 130617: 2024-05-08 17:12:30.034 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client certificate']
Line 130618: 2024-05-08 17:12:30.034 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client key exchange']
Line 130619: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read certificate verify']
Line 130620: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read change cipher spec']
Line 130621: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read finished']
Line 130622: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write change cipher spec']
Line 130623: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write finished']
Line 130624: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1415 OnSslInfo | DTLS handshake done
Line 130625: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:977 SendPendingOutgoingDtlsData | 67 bytes of DTLS data ready to sent to the peer
Line 130626: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1166 CheckRemoteFingerprint | valid remote fingerprint
Line 130627: 2024-05-08 17:12:30.035 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1340 GetNegotiatedSrtpCryptoSuite | chosen SRTP crypto suite: SRTP_AEAD_AES_256_GCM
Line 130628: 2024-05-08 17:12:30.035 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:191 OnDtlsTransportConnected | CioAZH+9AAA=_145
Line 130629: 2024-05-08 17:12:30.045 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1015 SetTimeout | DTLS timer set in 89ms
Line 130630: 2024-05-08 17:12:30.045 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write server done']
Line 130631: 2024-05-08 17:12:30.045 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client certificate']
Line 130632: 2024-05-08 17:12:30.045 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read client key exchange']
Line 130633: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read certificate verify']
Line 130634: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read change cipher spec']
Line 130635: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS read finished']
Line 130636: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write change cipher spec']
Line 130637: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1369 OnSslInfo | [role:server, action:'SSLv3/TLS write finished']
Line 130638: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1415 OnSslInfo | DTLS handshake done
Line 130639: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:977 SendPendingOutgoingDtlsData | 67 bytes of DTLS data ready to sent to the peer
Line 130640: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1166 CheckRemoteFingerprint | valid remote fingerprint
Line 130641: 2024-05-08 17:12:30.046 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1340 GetNegotiatedSrtpCryptoSuite | chosen SRTP crypto suite: SRTP_AEAD_AES_256_GCM
Line 130642: 2024-05-08 17:12:30.046 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:191 OnDtlsTransportConnected | CioAZH+9AAA=_146
Line 130643: 2024-05-08 17:12:30.049 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1015 SetTimeout | DTLS timer set in 96ms
Line 130645: 2024-05-08 17:12:30.661 T [MediaServer] [8-event poller 19] UdpServer.cpp:302 operator() | 383-169(10.42.0.1:1198) mediakit::WebRtcSession on err: 255(message too long)
Line 130646: 2024-05-08 17:12:30.661 W [MediaServer] [8-event poller 19] WebRtcSession.cpp:104 onError | 383-169(10.42.0.1:1198) 255(message too long)
Line 130647: 2024-05-08 17:12:30.661 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:1175 removeTuple | CioAZH+9AAA=_145 remove tuple 10.42.0.1:1198
Line 130648: 2024-05-08 17:12:30.661 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:183 OnIceServerDisconnected | CioAZH+9AAA=_145
Line 130649: 2024-05-08 17:12:30.661 W [MediaServer] [8-event poller 19] WebRtcPlayer.cpp:98 onDestory | RTC播放器(defaultVhost/live/v6c2z7lzt5)结束播放,耗时(s):0
Line 130650: 2024-05-08 17:12:30.661 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:1395 OnSslInfo | sending DTLS warning alert: close notify
Line 130651: 2024-05-08 17:12:30.661 D [MediaServer] [8-event poller 19] DtlsTransport.cpp:977 SendPendingOutgoingDtlsData | 31 bytes of DTLS data ready to sent to the peer
Line 130652: 2024-05-08 17:12:30.661 W [MediaServer] [8-event poller 19] WebRtcTransport.cpp:514 onSendSockData | send data failed:31
Line 130653: 2024-05-08 17:12:30.661 I [MediaServer] [8-event poller 19] WebRtcTransport.cpp:502 ~WebRtcTransportImp | CioAZH+9AAA=_145

[xiongguangjie]

查看下这个 https://man7.org/linux/man-pages/man7/udp.7.html
配置下 /proc/sys/net/ipv4/ip_no_pmtu_disc 去关闭这个报错，然后你抓包看看是咋回事，不应该会超过MTU的

[pandalee86]

查看下这个 https://man7.org/linux/man-pages/man7/udp.7.html 配置下 /proc/sys/net/ipv4/ip_no_pmtu_disc 去关闭这个报错，然后你抓包看看是咋回事，不应该会超过MTU的

今天配置完这个之后，没复现问题了。
测试时抓了包，dtls最大包长1301，udp最大包长1460，看上去也都不大。
而且，之前更新的这个提交 62641f4 看上去是要把长报文分多次传输，感觉不配置ip_no_pmtu_disc，也不应该出现message too long的问题吧？

[xiongguangjie]

查看下这个 https://man7.org/linux/man-pages/man7/udp.7.html 配置下 /proc/sys/net/ipv4/ip_no_pmtu_disc 去关闭这个报错，然后你抓包看看是咋回事，不应该会超过MTU的

今天配置完这个之后，没复现问题了。 测试时抓了包，dtls最大包长1301，udp最大包长1460，看上去也都不大。 而且，之前更新的这个提交 62641f4 看上去是要把长报文分多次传输，感觉不配置ip_no_pmtu_disc，也不应该出现message too long的问题吧？

感觉是你这个网络mtu 配置得很小，这个很奇怪，可能是网络问题导致报错吧

[pandalee86]

查看下这个 https://man7.org/linux/man-pages/man7/udp.7.html 配置下 /proc/sys/net/ipv4/ip_no_pmtu_disc 去关闭这个报错，然后你抓包看看是咋回事，不应该会超过MTU的

今天配置完这个之后，没复现问题了。 测试时抓了包，dtls最大包长1301，udp最大包长1460，看上去也都不大。 而且，之前更新的这个提交 62641f4 看上去是要把长报文分多次传输，感觉不配置ip_no_pmtu_disc，也不应该出现message too long的问题吧？

感觉是你这个网络mtu 配置得很小，这个很奇怪，可能是网络问题导致报错吧

分析发现rtp报文中多了16字节的SRTP Auth Tag，导致实际udp总长超过配置中设置的videoMtuSize + 42.
videoMtuSize =1400; 1400+42+16=1458.
MediaServer所在的docker里的网卡mtu是1450, 小于1458.可能是这个原因导致的问题。
实际抓包还有很多1460长度的包，不清楚组包多出的2个字节哪来的。

[xiongguangjie]

查看下这个 https://man7.org/linux/man-pages/man7/udp.7.html 配置下 /proc/sys/net/ipv4/ip_no_pmtu_disc 去关闭这个报错，然后你抓包看看是咋回事，不应该会超过MTU的

今天配置完这个之后，没复现问题了。 测试时抓了包，dtls最大包长1301，udp最大包长1460，看上去也都不大。 而且，之前更新的这个提交 62641f4 看上去是要把长报文分多次传输，感觉不配置ip_no_pmtu_disc，也不应该出现message too long的问题吧？

感觉是你这个网络mtu 配置得很小，这个很奇怪，可能是网络问题导致报错吧

分析发现rtp报文中多了16字节的SRTP Auth Tag，导致实际udp总长超过配置中设置的videoMtuSize + 42. videoMtuSize =1400; 1400+42+16=1458. MediaServer所在的docker里的网卡mtu是1450, 小于1458.可能是这个原因导致的问题。 实际抓包还有很多1460长度的包，不清楚组包多出的2个字节哪来的。

这个你配置下配置文件里面的mtu应该可以解决

[pandalee86]

查看下这个 https://man7.org/linux/man-pages/man7/udp.7.html 配置下 /proc/sys/net/ipv4/ip_no_pmtu_disc 去关闭这个报错，然后你抓包看看是咋回事，不应该会超过MTU的

今天配置完这个之后，没复现问题了。 测试时抓了包，dtls最大包长1301，udp最大包长1460，看上去也都不大。 而且，之前更新的这个提交 62641f4 看上去是要把长报文分多次传输，感觉不配置ip_no_pmtu_disc，也不应该出现message too long的问题吧？

感觉是你这个网络mtu 配置得很小，这个很奇怪，可能是网络问题导致报错吧

分析发现rtp报文中多了16字节的SRTP Auth Tag，导致实际udp总长超过配置中设置的videoMtuSize + 42. videoMtuSize =1400; 1400+42+16=1458. MediaServer所在的docker里的网卡mtu是1450, 小于1458.可能是这个原因导致的问题。 实际抓包还有很多1460长度的包，不清楚组包多出的2个字节哪来的。

这个你配置下配置文件里面的mtu应该可以解决

已经将配置里的mtu改成1300了。
感谢您对这个问题的持续关注和指导。