15 Jan
2009
15 Jan
'09
4:54 p.m.
Hi,
I see enormous TCP problems on my systems.
All of a sudden, a perfectly working TCP session uses ZeroWindow
packets, later I see TCP Full Window packets and finally the peer resets
the connection.
In the logs I see a lot of "core:handle_io: empty fd map" messages.
Has anyone experienced similar problems?
Regards.
16 Jan
16 Jan
11:05 a.m.
Do you have heavy traffic?
Who is announcing ZeroWindow? Kamailio or the peer?
regards
klaus
Gawith schrieb:
Hi,
I see enormous TCP problems on my systems.
All of a sudden, a perfectly working TCP session uses ZeroWindow
packets, later I see TCP Full Window packets and finally the peer resets
the connection.
In the logs I see a lot of "core:handle_io: empty fd map" messages.
Has anyone experienced similar problems?
Regards.
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11:38 a.m.
There's not that much traffic. Perhaps 200 TCP packets per second.
Kamailio starts with the ZeroWindow.
I also see single "core:handle_io: empty fd map" in the logs and after
that Kamailio sends a TCP RST packet.
I have no clue how to debug this.
Klaus Darilion schrieb:
Do you have heavy traffic?
Who is announcing ZeroWindow? Kamailio or the peer?
regards
klaus
Gawith schrieb:
> Hi,
>
> I see enormous TCP problems on my systems.
> All of a sudden, a perfectly working TCP session uses ZeroWindow
> packets, later I see TCP Full Window packets and finally the peer resets
> the connection.
> In the logs I see a lot of "core:handle_io: empty fd map" messages.
>
> Has anyone experienced similar problems?
>
> Regards.
>
> _______________________________________________
> Kamailio (OpenSER) - Users mailing list
> Users(a)lists.kamailio.org
> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
1:15 p.m.
Usually TCP ZeroWindow means, that the TCP receive buffer is full, which
usually means that Kamailio stopped reading from the TCP socket.
I never had this problem yet. You could start grepping the code for this
error message to find out what happened.
regards
klaus
Gawith schrieb:
There's not that much traffic. Perhaps 200 TCP
packets per second.
Kamailio starts with the ZeroWindow.
I also see single "core:handle_io: empty fd map" in the logs and after
that Kamailio sends a TCP RST packet.
I have no clue how to debug this.
Klaus Darilion schrieb:
Do you have heavy traffic?
Who is announcing ZeroWindow? Kamailio or the peer?
regards
klaus
Gawith schrieb:
> Hi,
>
> I see enormous TCP problems on my systems.
> All of a sudden, a perfectly working TCP session uses ZeroWindow
> packets, later I see TCP Full Window packets and finally the peer resets
> the connection.
> In the logs I see a lot of "core:handle_io: empty fd map" messages.
>
> Has anyone experienced similar problems?
>
> Regards.
>
> _______________________________________________
> Kamailio (OpenSER) - Users mailing list
> Users(a)lists.kamailio.org
> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
_______________________________________________
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http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
5789
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3 comments
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participants (2)
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Gawith -
Klaus Darilion