I have a very difficult to diagnose problem. We are running Asterisk 1.6.2.11, DAHDI 2.4.0, FreePBX 2.8 on a Centos 5.5 server (Xeon quad core 4gb). Last week we started having a problem where the server will randomly stop sending and receiving calls. Asterisk does not die or crash. You can get the CLI but any command you input will not respond. All phones have "No Service" on their screens and if you dial into the server you can see the channel event but it never answers. Once we restart Asterisk everything goes back to normal. This is now happening several times a day so obviously the client is pissed. This customer has 4 Asterisk servers which all but this one works well. One of the others is running in the same hardware and environment but does not have this problem.
In the log files the only weird thing I see is: [Sep 6 11:09:48] DEBUG[24238] chan_dahdi.c: Write returned -1 (Resource temporarily unavailable) on channel 49 [Sep 6 11:09:48] DEBUG[24239] audiohook.c: Read factory 0x2aaaac5d3c60 was pretty quick last time, waiting for them. [Sep 6 11:09:48] DEBUG[24288] chan_dahdi.c: Write returned -1 (Resource temporarily unavailable) on channel 54 [Sep 6 11:09:48] DEBUG[24452] audiohook.c: Write factory 0x2aaacc67ad08 was pretty quick last time, waiting for them. [Sep 6 11:09:48] DEBUG[24492] audiohook.c: Failed to get 160 samples from write factory 0x2aaac8aa2ba8 [Sep 6 11:09:48] DEBUG[24492] audiohook.c: Read factory 0x2aaac8aa2170 and write factory 0x2aaac8aa2ba8 both fail to provide 160 samples These messages are repeated hundreds of times per minute. The only reference I can find to these messages were from Asterisk 1.4.X where recording playback sounded too fast but this is not the case here since recording play at normal speed (plus we are suing 1.6). Any tips on how to properly debug this situation? -- Telecomunicaciones Abiertas de México S.A. de C.V. Carlos Chávez Prats Director de Tecnología +52-55-91169161 ext 2001
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