[asterisk-bugs] [JIRA] (ASTERISK-25456) Asterisk becomes unresponsive - Flooded with WARNING: "chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host ..."

Tue Nov 3 16:23:32 CST 2015

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=228111#comment-228111 ] 

Bobby Hakimi edited comment on ASTERISK-25456 at 11/3/15 4:22 PM:
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i just attached all debug logs, backtraces and deadlock list needed for this issue. please let me know what else you need.

digium paid support said it was due to a STUN issue, when searching around i saw the same issue on this ticket and the same exact behavior

https://issues.asterisk.org/jira/browse/ASTERISK-24968  

was (Author: bobbymc):
i just attached all debug logs, backtraces and deadlock list needed for this issue. please let me know what else you need

> Asterisk becomes unresponsive - Flooded with WARNING: "chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host ..."
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-25456
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25456
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_iax2
>    Affects Versions: 11.17.1
>         Environment: gentoo
>            Reporter: Bobby Hakimi
>            Assignee: Unassigned
>         Attachments: backtrace-threads-5.txt, core-show-locks-5.txt, full.zip
>
>
> this issue happens when the iax2 trunk between two servers happens and there is some network issue that causes the connection to break. once this happens asterisk gets flooded with these errors and eventually the system becomes unresponsive
>  socket_process_meta: Received trunked frame before first full voice frame
> [2015-10-08 13:18:13] WARNING[23623]: chan_iax2.c:9993 socket_process_meta: Received trunked frame before first full voice frame
> [2015-10-08 13:18:14] WARNING[23620]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=140008, seqno=28)
> [2015-10-08 13:18:17] WARNING[20761][C-0000047b]: res_srtp.c:407 ast_srtp_unprotect: SRTP unprotect failed with: authentication failure 110
> [2015-10-08 13:18:21] WARNING[23622]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 2, ts=147010, seqno=29)
> [2015-10-08 13:18:24] WARNING[23623]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=150007, seqno=30)
>     -- Remote UNIX connection
> [2015-10-08 13:18:34] WARNING[23617]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=160006, seqno=31)
> [2015-10-08 13:18:38] WARNING[1055][C-00000b69]: res_srtp.c:407 ast_srtp_unprotect: SRTP unprotect failed with: authentication failure 110
> [2015-10-08 13:18:42] WARNING[23617]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 2, ts=168010, seqno=32)
> [2015-10-08 13:18:44] WARNING[23622]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=170006, seqno=33)
>   == WebSocket connection from 'XXX.XX.XXX.XXX:17450' for protocol 'sip' accepted using version '13'
>   == Setting global variable 'MEETMEADMINSTATUS' to 'OK'
>     -- <SIP/138-00000169> Playing 'conf-kicked.slin' (language 'en')
> [2015-10-08 13:18:54] WARNING[23623]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=180005, seqno=34)
>   == WebSocket connection from '38.125.33.226:41824' for protocol 'sip' accepted using version '13'
> [2015-10-08 13:19:03] WARNING[23622]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 2, ts=189009, seqno=35)
> [2015-10-08 13:19:04] WARNING[23623]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=190005, seqno=36)
> [2015-10-08 13:19:14] WARNING[23616]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=200004, seqno=37)
> [2015-10-08 13:19:24] WARNING[23615]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=210004, seqno=38)
> [2015-10-08 13:19:24] WARNING[23617]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 2, ts=210008, seqno=39)
> [2015-10-08 13:19:34] WARNING[23615]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=220004, seqno=40)
> [2015-10-08 13:19:44] WARNING[23623]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=230004, seqno=41)
> [2015-10-08 13:19:45] WARNING[23621]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 2, ts=231008, seqno=42)
> [2015-10-08 13:19:54] WARNING[23623]: chan_iax2.c:3642 __attempt_transmit: Max retries exceeded to host XXX.XXX.XXX.XXX on IAX2/dialer-outbound-2552 (type = 6, subclass = 11, ts=240004, seqno=43)
>     -- Remote UNIX connection
>   == Parsing '/etc/asterisk/logger.conf': Found

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