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Asterisk 11to16, What could go wrong
- 1. Asterisk 16 Update 11 to 16 - what could possibly go wrong Jöran Vinzens @vinzens81 linkedin.com/in/jvinzens/
- 2. Why?
- 3. Why? Oh, it is not mandatory? Than do something else.
- 4. Why? It is working, why should we?
- 5. Why? There is a risk that something fails.
- 6. Why? There is nothing new we need.
- 7. Why? Just some years ago we spent a lot of time on it. Why again?
- 8. Why? Not now, no time! If we do it, we have to do it right!
- 9. Why? Doh… We need Opus, security, ARI feature... and stuff….Now!
- 10. Why? OK, now we need to update. ASAP
- 11. Why? It is easy to ignore and always something else is more important.
- 12. Where did we start?
- 13. Where did we start? ● Asterisk 11 ● AGI Scripts ● Patches for lawful Interception ● Chan_sip ● Running in daemon tools ● Debian Lenny / Jessie
- 14. Todo
- 15. Todo ● Dialplan Macro() -> GoSub() ● Adapt to new channel handling ● PJSIP migration ● Daemon tools to systemd
- 17. Test existing featureset SIPp call tests Test behaviour Asterisk 11 vs. Asterisk 16 https://github.com/sipgate/signaling-test
- 18. Test existing featureset SIPp call tests Test behaviour Asterisk 11 vs. Asterisk 16 13 Testcases written Execute via e.g. vREST.io, Jenkins https://github.com/sipgate/signaling-test
- 19. Test existing featureset SIPp call tests https://github.com/sipgate/signaling-test Test Script SIPp Sender SIPp Receiver
- 20. Test existing featureset SIPp call tests https://github.com/sipgate/signaling-test Test Script SIPp Sender SIPp Receiver
- 21. Test existing featureset Test Script SIPp Sender SIPp Receiver Test Script SIPp Sender SIPp Receiver SIPp call tests https://github.com/sipgate/signaling-test Rest2Bash
- 22. SIPp call tests https://github.com/sipgate/signaling-test Test existing featureset Rest2Bash Jenkins pipeline Ansible deploy Test dev Ansible deploy Test production
- 23. Test existing featureset Feature tests: ● Basic Call ● Setting of headers ● Accounting ● Blacklist ● Emergency Calls ● CDR input in DB ● ...some more
- 24. Test existing featureset All feature tests were fine
- 25. Let’s do it!
- 26. Let's do it! ● Build package for Debian Buster ● Port sip.conf to pjsip.conf ● Check AGI for obsolete code ● Rewrite Dialplan
- 27. Let's do it! Build package for Debian Buster
- 28. Let's do it! Build package for Debian Buster Using test step to verify our patch.
- 29. Let's do it! Port sip.conf to pjsip.conf
- 30. Let's do it! Port sip.conf to pjsip.conf Try to use sip2pjsip script… - failed Build from bottom up Using Ansible magic to configure production and dev environment
- 31. Let's do it! Check AGI for obsolete code
- 32. Let's do it! Check AGI for obsolete code Grep for all AGI interaction Nothing critical found o/
- 33. Let's do it! Set header after Dial() command
- 34. Let's do it! Set header after Dial() command [someWhere] exten => _X.,1,SIPSetHeader(Foo: Bar) exten => _X.,n,Goto(someWhereElse...) [someWhereElse] exten => _X.,n,Dial(SIP/${EXTEN}@dest)
- 35. Let's do it! Set header after Dial() command [someWhere] exten = _X.,1,Set(_HeaderFoo: Bar) same = n,Goto(someWhereElse...) [someWhereElse] exten = _x.,1,Dial(SIP/${EXTEN}@dest,g(subDialHook^s^1)) [subDialHook] #generic do all Dial() exten = s,n,ExecIf($[${LEN(${HeaderFoo})} > 0]? Set(PJSIP_HEADER(add,Foo=${HeaderFoo})) ) same = n,Return()
- 36. Let's do it! Macro to Gosub
- 37. Let's do it! Macro to Gosub exten => _X.,1,Macro(doSomething) [macro_doSomething] exten => s,1,doSomething(${MACRO_EXTEN})
- 38. Let's do it! Macro to Gosub exten => _X.,1,GoSub(subDoSomething,${EXTEN},1) [subDoSomething] exten => _X.,1,doSomething(${EXTEN}) same = n,Return()
- 39. Let's do it! New formatting
- 40. Let's do it! New formatting exten => _X.,1,Set(ABC) exten => _X.,n,Set(DEF) exten => _X.,n,Set(XYZ)
- 41. Let's do it! New formatting exten = _X.,1,Set(ABC) same = n,Set(DEF) same = n,Set(XYZ)
- 42. Let's do it! ● Build package for Debian Buster ● Port sip.conf to pjsip.conf ● Check if AGI do stupid stuff ● Rewrite Dialplan All needed to be done in order to try it.
- 43. SIPp call tests Test behaviour Asterisk 11 vs. Asterisk 16 There are differences needed to be covered. Let's do it!
- 44. SIPp call tests Test behaviour Asterisk 11 vs. Asterisk 16 There are differences needed to be covered. There is no “canreinvite=no” Let's do it!
- 45. Let's do it! All feature tests were fine
- 46. Let’s run it!
- 47. Let's run it! Put some calls on the system (as few as possible) and observe.
- 48. Let's run it! Put some calls on the system (as few as possible) and observe. CRASH
- 49. Let's run it! Put some calls on the system (as few as possible) and observe. Sporadic crashes CRASH
- 50. Let's run it! Put some calls on the system (as few as possible) and observe. Sporadic crashes All related to Fax T.38 Invites CRASH
- 51. Let's run it! Put some calls on the system (as few as possible) and observe. Asterisk 16.5.1 to the rescue! Worked fine for several days.
- 52. Let's run it! Put real traffic on the System and observe.
- 53. Let's run it! Put real traffic on the System and observe. CRASH
- 54. Let's run it! Put real traffic on the System and observe. Open file limit. CRASH
- 55. Let's run it! Put real traffic on the System and observe. SystemD Ulimit was to low.
- 56. Let's run it! Worked with same call load.
- 57. Further issues
- 58. ● Asterisk Updates ● Logging ● Load peaks ● Continuous load Further issues
- 60. Further issues Asterisk Updates SystemD stops a System while uninstalling. Install Unitfile from Ansible instead of Debian package
- 62. Further issues Logging ● Log in var/log/syslog ● Log in var/log/daemon.log ● Log in var/log/asterisk/messages
- 63. Further issues Logging ● Log in var/log/syslog ● Log in var/log/daemon.log ● Log in var/log/asterisk/messages Start asterisk with “-pmgf” and “stdoutput=null” in Unitfile solved it.
- 65. Further issues Load peaks ● High disk IO caused by Asterisk
- 66. Further issues Load peaks ● High disk IO caused by Asterisk Disable logrotate within Asterisk and use Debian logrotate.
- 68. Further issues LoadAsterisk 16.5.1 15min avg 2.76 Asterisk 11 15min avg 0.604
- 69. Further issues Load ● Perl AGI scripts cause high load Move logic from Perl AGI to Java FastAGI
- 70. Well.. Load, still ongoing. Update of asterisk took 4p ~2 months
- 71. Questions? Thanks for listening! Jöran Vinzens @vinzens81 linkedin.com/in/jvinzens/