Error in TURN Servers

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Error in TURN Servers

Nabeel
Hi,

I am recently getting the following error, '437 Allocation Mismatch', in multiple Turn servers I have tried. The same error occurs in Coturn and reTurnServer on multiple physical server instances and when using all versions of the client I am using, which never had this issue. The common factor in these cases, as a possible cause, is the SIP server, so I am hoping someone will be able to advise. In the log of OpenSIPS itself, there is nothing specific regarding this error. The error appears in all Turn server logs as below:



Coturn log: session 001000000000000001: realm <> user <>: incoming packet message processed, error 437: Mismatched allocation: wrong transaction
 

reTurnServer log: DEBUG | 20170809-074953.802 | reTurnServer | RETURN | 139914911389440 | RequestHandler.cxx:455 | Allocation request received: localTuple=[UDP 162.259.6.236:3478], remoteTuple=[UDP 188.29.165.172:29101] WARNING | 20170809-074953.802 | reTurnServer | RETURN | 139914911389440 | RequestHandler.cxx:462 | Allocation requested but already exists. Sending 437. Sender=[UDP 188.29.165.172:29101] STACK | 20170809-074953.802 | reTurnServer | RETURN | 139914911389440 | StunMessage.cxx:1462 | Encoding stun message: STUN Error Response: Allocate, id 42a4122120c25f25602a28d9acdceb44 STACK | 20170809-074953.802 | reTurnServer | RETURN | 139914911389440 | StunMessage.cxx:1505 | Encoding ErrorCode: 4 number=37 reason=Allocation Mismatch

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Re: Error in TURN Servers

Nabeel
I found the cause of this. My OpenSIPS server has gone ballistic and is running hundreds of processes/instances concurrently; please see this screenshot: https://www.dropbox.com/s/7o7fsuab1jggrsh/Screenshot%202017-08-10%2007.28.15.png?dl=0

Even after I kill all the processes, hundreds of processes start again whenever I start OpenSIPS in any way.

Below is my opensips.service file but the same occurs if starting OpenSIPS using 'opensipsctl start':


[Unit]
Description=OpenSIPS is a very fast and flexible SIP (RFC3261) server
After=network.target mariadb.service multi-user.target
 
 
[Service]
Type=forking
User=root
Group=root
EnvironmentFile=-/etc/default/opensips
PIDFile=/var/run/opensips.pid
ExecStart=/usr/local/sbin/opensips -P /var/run/opensips.pid -f /usr/local/etc/opensips/opensips.cfg $OPTIONS
ExecStartPre=/usr/local/sbin/opensips -c -f /usr/local/etc/opensips/opensips.cfg
Restart=always
TimeoutStopSec=30s
LimitNOFILE=1048576
LimitNPROC=1048576
 
[Install]
WantedBy=multi-user.target
 

Please advise how to fix this urgently.

Nabeel

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Re: Error in TURN Servers

Nabeel
Anyone? I am using OpenSIPS version 2.2.

On 10 Aug 2017 8:02 am, "Nabeel" <[hidden email]> wrote:
I found the cause of this. My OpenSIPS server has gone ballistic and is running hundreds of processes/instances concurrently; please see this screenshot: https://www.dropbox.com/s/7o7fsuab1jggrsh/Screenshot%202017-08-10%2007.28.15.png?dl=0

Even after I kill all the processes, hundreds of processes start again whenever I start OpenSIPS in any way.

Below is my opensips.service file but the same occurs if starting OpenSIPS using 'opensipsctl start':


[Unit]
Description=OpenSIPS is a very fast and flexible SIP (RFC3261) server
After=network.target mariadb.service multi-user.target
 
 
[Service]
Type=forking
User=root
Group=root
EnvironmentFile=-/etc/default/opensips
PIDFile=/var/run/opensips.pid
ExecStart=/usr/local/sbin/opensips -P /var/run/opensips.pid -f /usr/local/etc/opensips/opensips.cfg $OPTIONS
ExecStartPre=/usr/local/sbin/opensips -c -f /usr/local/etc/opensips/opensips.cfg
Restart=always
TimeoutStopSec=30s
LimitNOFILE=1048576
LimitNPROC=1048576
 
[Install]
WantedBy=multi-user.target
 

Please advise how to fix this urgently.

Nabeel

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Re: Error in TURN Servers

Max Mühlbronner-2

Hi,


I don't see hundreds or even thousands on the screenshot?


Also the Opensips server should not have any connection/relation to your TURN Server, so i don't think Opensips could be the issue.

A quick google search for "TURN 437 Allocation Mismatch" suggests that it's a TURN CLIENT <--> TURN Server problem. It could be related to the TURN client implementation.


BR

Max M.

Von: Users <[hidden email]> im Auftrag von Nabeel <[hidden email]>
Gesendet: Donnerstag, 10. August 2017 13:55
An: OpenSIPS users mailling list
Betreff: Re: [OpenSIPS-Users] Error in TURN Servers
 
Anyone? I am using OpenSIPS version 2.2.

On 10 Aug 2017 8:02 am, "Nabeel" <[hidden email]> wrote:
I found the cause of this. My OpenSIPS server has gone ballistic and is running hundreds of processes/instances concurrently; please see this screenshot: https://www.dropbox.com/s/7o7fsuab1jggrsh/Screenshot%202017-08-10%2007.28.15.png?dl=0

Even after I kill all the processes, hundreds of processes start again whenever I start OpenSIPS in any way.

Below is my opensips.service file but the same occurs if starting OpenSIPS using 'opensipsctl start':


[Unit]
Description=OpenSIPS is a very fast and flexible SIP (RFC3261) server
After=network.target mariadb.service multi-user.target
 
 
[Service]
Type=forking
User=root
Group=root
EnvironmentFile=-/etc/default/opensips
PIDFile=/var/run/opensips.pid
ExecStart=/usr/local/sbin/opensips -P /var/run/opensips.pid -f /usr/local/etc/opensips/opensips.cfg $OPTIONS
ExecStartPre=/usr/local/sbin/opensips -c -f /usr/local/etc/opensips/opensips.cfg
Restart=always
TimeoutStopSec=30s
LimitNOFILE=1048576
LimitNPROC=1048576
 
[Install]
WantedBy=multi-user.target
 

Please advise how to fix this urgently.

Nabeel

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Re: Error in TURN Servers

Nabeel
The screenshot doesn't show all the processes but I know it is hundreds because it's necessary to run 'killall' or similar command several times to get rid of all the processes and I can see the PIDs change each time.

I think it absolutely can be OpenSIPS server causing the TURN error because OpenSIPS is in charge of creating the sessions in the first place, and if there are hundreds of OpenSIPS processes running then there will be hundreds of sessions created for each call.


On 10 August 2017 at 13:12, Max Mühlbronner <[hidden email]> wrote:

Hi,


I don't see hundreds or even thousands on the screenshot?


Also the Opensips server should not have any connection/relation to your TURN Server, so i don't think Opensips could be the issue.

A quick google search for "TURN 437 Allocation Mismatch" suggests that it's a TURN CLIENT <--> TURN Server problem. It could be related to the TURN client implementation.


BR

Max M.

Von: Users <[hidden email]> im Auftrag von Nabeel <[hidden email]>
Gesendet: Donnerstag, 10. August 2017 13:55
An: OpenSIPS users mailling list
Betreff: Re: [OpenSIPS-Users] Error in TURN Servers
 
Anyone? I am using OpenSIPS version 2.2.

On 10 Aug 2017 8:02 am, "Nabeel" <[hidden email]> wrote:
I found the cause of this. My OpenSIPS server has gone ballistic and is running hundreds of processes/instances concurrently; please see this screenshot: https://www.dropbox.com/s/7o7fsuab1jggrsh/Screenshot%202017-08-10%2007.28.15.png?dl=0

Even after I kill all the processes, hundreds of processes start again whenever I start OpenSIPS in any way.

Below is my opensips.service file but the same occurs if starting OpenSIPS using 'opensipsctl start':


[Unit]
Description=OpenSIPS is a very fast and flexible SIP (RFC3261) server
After=network.target mariadb.service multi-user.target
 
 
[Service]
Type=forking
User=root
Group=root
EnvironmentFile=-/etc/default/opensips
PIDFile=/var/run/opensips.pid
ExecStart=/usr/local/sbin/opensips -P /var/run/opensips.pid -f /usr/local/etc/opensips/opensips.cfg $OPTIONS
ExecStartPre=/usr/local/sbin/opensips -c -f /usr/local/etc/opensips/opensips.cfg
Restart=always
TimeoutStopSec=30s
LimitNOFILE=1048576
LimitNPROC=1048576
 
[Install]
WantedBy=multi-user.target
 

Please advise how to fix this urgently.

Nabeel

_______________________________________________
Users mailing list
[hidden email]
http://lists.opensips.org/cgi-bin/mailman/listinfo/users



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Re: Error in TURN Servers

Max Mühlbronner-2

Check again, there are not thousands processes but the processes you are killing are just "restarted". This is not a problem at all...


There is a parameter in Opensips which adjusts the number of child processes, change the parameter, restart opensips and count the number of processes again.


https://www.opensips.org/Documentation/Script-CoreParameters-2-2#toc34



But anyways it's very obvious that the issue is something specific to TURN and not Opensips:

https://stackoverflow.com/questions/36627529/coturn-turnserver-error-437-mismatched-allocation-wrong-transaction-id-webr

It probably has something to do with the combination of client/server/configuration, but not the SIP Server.


BR





Von: Users <[hidden email]> im Auftrag von Nabeel <[hidden email]>
Gesendet: Donnerstag, 10. August 2017 14:20
An: OpenSIPS users mailling list
Betreff: Re: [OpenSIPS-Users] Error in TURN Servers
 
The screenshot doesn't show all the processes but I know it is hundreds because it's necessary to run 'killall' or similar command several times to get rid of all the processes and I can see the PIDs change each time.

I think it absolutely can be OpenSIPS server causing the TURN error because OpenSIPS is in charge of creating the sessions in the first place, and if there are hundreds of OpenSIPS processes running then there will be hundreds of sessions created for each call.


On 10 August 2017 at 13:12, Max Mühlbronner <[hidden email]> wrote:

Hi,


I don't see hundreds or even thousands on the screenshot?


Also the Opensips server should not have any connection/relation to your TURN Server, so i don't think Opensips could be the issue.

A quick google search for "TURN 437 Allocation Mismatch" suggests that it's a TURN CLIENT <--> TURN Server problem. It could be related to the TURN client implementation.


BR

Max M.

Von: Users <[hidden email]> im Auftrag von Nabeel <[hidden email]>
Gesendet: Donnerstag, 10. August 2017 13:55
An: OpenSIPS users mailling list
Betreff: Re: [OpenSIPS-Users] Error in TURN Servers
 
Anyone? I am using OpenSIPS version 2.2.

On 10 Aug 2017 8:02 am, "Nabeel" <[hidden email]> wrote:
I found the cause of this. My OpenSIPS server has gone ballistic and is running hundreds of processes/instances concurrently; please see this screenshot: https://www.dropbox.com/s/7o7fsuab1jggrsh/Screenshot%202017-08-10%2007.28.15.png?dl=0

Even after I kill all the processes, hundreds of processes start again whenever I start OpenSIPS in any way.

Below is my opensips.service file but the same occurs if starting OpenSIPS using 'opensipsctl start':


[Unit]
Description=OpenSIPS is a very fast and flexible SIP (RFC3261) server
After=network.target mariadb.service multi-user.target
 
 
[Service]
Type=forking
User=root
Group=root
EnvironmentFile=-/etc/default/opensips
PIDFile=/var/run/opensips.pid
ExecStart=/usr/local/sbin/opensips -P /var/run/opensips.pid -f /usr/local/etc/opensips/opensips.cfg $OPTIONS
ExecStartPre=/usr/local/sbin/opensips -c -f /usr/local/etc/opensips/opensips.cfg
Restart=always
TimeoutStopSec=30s
LimitNOFILE=1048576
LimitNPROC=1048576
 
[Install]
WantedBy=multi-user.target
 

Please advise how to fix this urgently.

Nabeel

_______________________________________________
Users mailing list
[hidden email]
http://lists.opensips.org/cgi-bin/mailman/listinfo/users



_______________________________________________
Users mailing list
[hidden email]
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
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