Strange messages in error log

Wowza Streaming Engine
1

Hi

I have wowza 4.1.1

In error log i have many messages like that

ERROR server comment 2015-01-15 11:04:18 1042475836 127.0.0.1 - 0 0 251.311 - - - - - - - - RTPMulticastListener.init : java.lang.NullPointerException|at com.wowza.wms.rtp.transport.RTPMulticastListener.a(RTPMulticastListener.java:176)|at com.wowza.wms.rtp.transport.RTPMulticastListener.run(RTPMulticastListener.java:299)|

ERROR server comment 2015-01-15 11:04:18 1858116382 127.0.0.1 - 0 0 251.312 - - - - - - - - RTPMulticastListener.init : java.lang.NullPointerException|at com.wowza.wms.rtp.transport.RTPMulticastListener.a(RTPMulticastListener.java:176)|at com.wowza.wms.rtp.transport.RTPMulticastListener.run(RTPMulticastListener.java:299)|

ERROR server comment 2015-01-15 11:04:18 1689972856 127.0.0.1 - 0 0 251.314 - - - - - - - - RTPMulticastListener.init : java.lang.NullPointerException|at com.wowza.wms.rtp.transport.RTPMulticastListener.a(RTPMulticastListener.java:176)|at com.wowza.wms.rtp.transport.RTPMulticastListener.run(RTPMulticastListener.java:299)|

ERROR server comment 2015-01-15 11:04:18 643793589 127.0.0.1 - 0 0 251.314 - - - - - - - - RTPMulticastListener.init : java.lang.NullPointerException|at com.wowza.wms.rtp.transport.RTPMulticastListener.a(RTPMulticastListener.java:176)|at com.wowza.wms.rtp.transport.RTPMulticastListener.run(RTPMulticastListener.java:299)|

ERROR server comment 2015-01-15 11:04:18 663661288 127.0.0.1 - 0 0 251.316 - - - - - - - - RTPMulticastListener.init : java.lang.NullPointerException|at com.wowza.wms.rtp.transport.RTPMulticastListener.a(RTPMulticastListener.java:176)|at com.wowza.wms.rtp.transport.RTPMulticastListener.run(RTPMulticastListener.java:299)|

ERROR server comment 2015-01-15 11:04:18 923896352 127.0.0.1 - 0 0 251.316 - - - - - - - - RTPMulticastListener.init : java.lang.NullPointerException|at com.wowza.wms.rtp.transport.RTPMulticastListener.a(RTPMulticastListener.java:176)|at com.wowza.wms.rtp.transport.RTPMulticastListener.run(RTPMulticastListener.java:299)|

What dos that mean ?

Thank you

2

Hello there.

Are you experiencing any streaming problems?

Can you provide any more detail about your setup?

Are there anymore error messages in the logs leading up to this message?

Kind regards,

Salvadore

3

Hello there.

Are you experiencing any streaming problems?

Can you provide any more detail about your setup?

Are there anymore error messages in the logs leading up to this message?

Kind regards,

Salvadore

Also there is errors like that

ERROR server comment 2015-01-16 12:25:08 1452542789 127.0.0.1 - 0 0 66523.995 - - - - - - - - RTPMulticastListener.unbind : java.net.SocketException: Cannot assign requested address|at java.net.PlainDatagramSocketImpl.leave(Native Method)|at java.net.AbstractPlainDatagramSocketImpl.leave(AbstractPlainDatagramSocketImpl.java:187)|at java.net.MulticastSocket.leaveGroup(MulticastSocket.java:358)|at com.wowza.wms.rtp.transport.RTPMulticastListener.unbind(RTPMulticastListener.java:62)|at com.wowza.wms.rtp.transport.RTPMulticastTransport.unbind(RTPMulticastTransport.java:91)|

ERROR server comment 2015-01-16 12:25:08 788333422 127.0.0.1 - 0 0 66523.996 - - - - - - - - RTPMulticastListener.unbind : java.net.SocketException: Cannot assign requested address|at java.net.PlainDatagramSocketImpl.leave(Native Method)|at java.net.AbstractPlainDatagramSocketImpl.leave(AbstractPlainDatagramSocketImpl.java:187)|at java.net.MulticastSocket.leaveGroup(MulticastSocket.java:358)|at com.wowza.wms.rtp.transport.RTPMulticastListener.unbind(RTPMulticastListener.java:62)|at com.wowza.wms.rtp.transport.RTPMulticastTransport.unbind(RTPMulticastTransport.java:91)|

ERROR server comment 2015-01-16 12:25:08 1404286634 127.0.0.1 - 0 0 66523.997 - - - - - - - - RTPMulticastListener.unbind : java.net.SocketException: Cannot assign requested address|at java.net.PlainDatagramSocketImpl.leave(Native Method)|at java.net.AbstractPlainDatagramSocketImpl.leave(AbstractPlainDatagramSocketImpl.java:187)|at java.net.MulticastSocket.leaveGroup(MulticastSocket.java:358)|at com.wowza.wms.rtp.transport.RTPMulticastListener.unbind(RTPMulticastListener.java:62)|at com.wowza.wms.rtp.transport.RTPMulticastTransport.unbind(RTPMulticastTransport.java:91)|

Sometime some streams loose audio track

Just restart that streams and they strat to work good

i have server with Ubuntu 12.04 64 bit Server edition

Java:

java version “1.8.0_25”

Java™ SE Runtime Environment (build 1.8.0_25-b17)

Java HotSpot™ 64-Bit Server VM (build 25.25-b02, mixed mode)

WowzaStreamingEngine:

Engine Version

4.1.1 (build 13180)

Engine Manager Version

4.1.1 (build 13180)

i have 2 applications

  1. Receive unicast and publish it to RTMP and RTP multicast

  2. Receive RTMP streams and publish it to RTMP and RTP multicast

4

Hello there.

Are you experiencing any streaming problems?

Can you provide any more detail about your setup?

Are there anymore error messages in the logs leading up to this message?

Kind regards,

Salvadore

Just noticed

I can not receive multicast on Wowza

Multicast is avialable on server

5

One other suggestion would be to enable UDP port sharing as this multicast listener error might be related to the RTP port binding:

How to enable UDP port sharing (unicast and multicast)

Its just a guess, but this may make the error go away.

Kind regards,

Salvadore

6

Have you enabled port sharing?

How to enable UDP port sharing (unicast and multicast)

Take a loo at this guide as well:

How to listen for a multicast stream on a particular network interface

Salvadore