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Icecast 1 vs Icecast 2

 
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Tazzz
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PostPosted: Wed Aug 31, 2005 8:59 am    Post subject: Icecast 1 vs Icecast 2 Reply with quote

Hello all,

We have +/- 1200 clients on two servers icecast 1 (24k & 128k). This work fine. We plan to migrate to icecast 2. we are late, I know it.

Under 100 clients on the server icecast 2, it's ok. BUT, When we have more clients, all clients are being kicked.

Someone have an idea ? more threads ?
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karlH
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PostPosted: Wed Aug 31, 2005 11:06 am    Post subject: Reply with quote

firstly which version (2.2, 2.3rc1 or earlier?), secondly what shows in the error log when the listeners are kicked off. Are you describing icecast crashing out or just that listeners are being dropped ? If' it's just new clients after the 100 then check to see what you have set in <clients> or <max-listeners> in the config file.

karl.
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PostPosted: Wed Aug 31, 2005 11:28 am    Post subject: Reply with quote

Thanks a lot for helping me Karl.

1° Icecast 2.2.

2° The listeners are being dropped. I find this message in the error.log : DBUG source/send_to_listener Client has fallen too far behind, removing

3° <clients>15000</clients>, no <max-listeners> are set because it's a mount specific setting and I utilise libshout to set a dynamic mountpoint for a source (the mountpoint are changed every night).
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karlH
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PostPosted: Wed Aug 31, 2005 11:55 am    Post subject: Reply with quote

the too far behind is an issue of the listener connection not being fast enough, but if there is a stall then that could also knock the listener to the end of the queue. try increasing the queue-size

karl.
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PostPosted: Wed Aug 31, 2005 12:53 pm    Post subject: Reply with quote

That's something we thought about, but we aren't experiencing those drops when the number of connections doesn't exceed 100 approx.

Do you think that this could be a queue size problem anyways? Could a bigger number of connections slow down the icecast server enough for such problems to appear?
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karlH
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PostPosted: Wed Aug 31, 2005 1:38 pm    Post subject: Reply with quote

The number of connections won't slow icecast down so much, but listeners are started about <burst-size> into the queue (queue-size) so if their isn't much tollerance (like 64k out of 100k) then listeners could end up at the end of the queue quickly. One example to watch for is a relay where the source of the relay may burst a lot of data when it starts up.

karl.
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PostPosted: Wed Aug 31, 2005 1:49 pm    Post subject: Reply with quote

Ok, thanks a lot for this info.

We will try to adjust the queue size and/or the burst size then and see how it goes. Its nice to have someone answering so quickly!
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