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Fwd: Call Center - Memory Leak
by Mersed Kahrimanovic 25 Apr '16

25 Apr '16

Hello, We have implemented call center using a freeswitch as switch for handling calls. It is basically the logic where you have an agents within the queue waiting for an contacts to come in, or contact within the queue waiting if there is no any agents available. For this kind of implementation we used pure lua and hash tables (and not mod_fifo) in order to have a better flexibility and possibility to manage different contact/agent states. Everything was working fine on our old servers, now we are migrating to the cloud and we are using aws for that purpose, of course trying to cut some costs. --------------- After initial setup of our solution we found out that there is a memory leak causing for freeswitch to consume 3 - 10 MB per minute during production hours. (we did not notice anything on old servers because we had like 24 cores and 94GB of ram on those). This is not too much of course but the bottom point is that increase is linear and its constantly raising consuming more and more of RAM. In order to isolate an issue and to conclude that we don't have an issue within our solution I installed 1.6.7 version of freeswitch and setup really simple call center with mod_fifo without anything else (totally independent from call center we are working on) For the reference: *Aws:* m4.large vCPU: 2 RAM: 8GB Throughput (Mbps): 450 *Freeswitch version:* 1.6.7 *OS:* Debian GNU/Linux 8 (jessie) *Number of agents:* 30 *Number of calls per agent:* 1 *Total numbers of channels at time:* 60 *Agents simulated with:* pjsip(http://www.pjsip.org/) *Contact simulated with:* sipp(http://sipp.sourceforge.net/) *Configuration:* I used configuration which came with installation of freeswitch. The only things i changed is: - default password - internal rtp timeout - rtpip and sip ip Test scenario: 1. Start the freeswitch. 2. Autoload lua script is going to ring all of the internal (agents) and push them to the extension where we had mod_fifo 3. After some time, same autoload script is going to start calling contacts each 800 miliseconds and push them to the extension where we have mod_fifo. 4. mod_fifo will do the rest, bridge agent with the contact and handling the queue properly. As a result we will have 30 agents constantly "talking", and when ever call is dropped we will have agent connected with another. Parameters for the test match that scenario, and we dont have more then 60 - 65 channels open at the time (never). Dialplan for handling mod_fifo http://pastie.org/10812261 Autoload lua script http://pastie.org/10812263 Result http://prnt.sc/awm4ao The results are for 24hrs period, and indeed 24hrs is a lot. We will never have production running more then 12hrs (and daily restart will occur). But this basically means that we are not able to host more then 40-45 agents on servers with 8GB of ram. My question is: Is this something which can be considered as memory leak, or this is simply how freeswitch works, behaves and requirements it have? Thank you, Mersed

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Re: [Freeswitch-dev] Fwd: Call Center - Memory Leak
by Customer Care 25 Apr '16

25 Apr '16

Thank you for contacting Alaska Airlines. If you experienced a recent delayed or canceled flight, thank you for sharing your contact information with our Customer Care Department. We will respond to you shortly. If you are requesting to opt out of future Marketing emails from Alaska Airlines and our Partners, we will update your account accordingly. If you wish to change this at any time please call the Mileage Plan Office directly at 1-800-654-5669. For all other questions or for other assistance, please visit our website at alaskaair.com/contactus.

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Re: [Freeswitch-dev] Fwd: Call Center - Memory Leak
by Customer Care 25 Apr '16

25 Apr '16

Thank you for contacting Alaska Airlines. If you experienced a recent delayed or canceled flight, thank you for sharing your contact information with our Customer Care Department. We will respond to you shortly. If you are requesting to opt out of future Marketing emails from Alaska Airlines and our Partners, we will update your account accordingly. If you wish to change this at any time please call the Mileage Plan Office directly at 1-800-654-5669. For all other questions or for other assistance, please visit our website at alaskaair.com/contactus.

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Ask about audio conference call.
by Duc Tai Nguyen 10 Mar '16

10 Mar '16

Hi all, I am a new bee with FreeSwitch. I tried to config the audio conference call, for ex. for 100 users, and I want whenever user enter the conference, there is only audio. I tried to config the dialplan/default.xml and conference.conf.xml. Use the members-flag as "vmute", and when user enter the conference, it still plays video a little before it turn off it, and even that the camera light is still on my laptop. Is there any way to config so that it only get the audio stream for conference? Even I tried to config in the dialplan/default.xml like this: <action application="conference" data="$1-${domain_name}@wideband ++flags{vmute}"/> there is no effect on it. Pls help, will appreciate it. Thanks, Tai.

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JIRA
by Brian West 09 Mar '16

09 Mar '16

FreeSWITCHers, FYI If I close an old JIRA you still care about, by all means REOPEN IT, be attentive and help drive it thru the process, I thank everyone for opening JIRAs on issues, but you'll need to provide assistance to push them over the finish line. Thanks, -- *Brian West* brian(a)freeswitch.org *Twitter: @FreeSWITCH , @briankwest* http://www.freeswitchbook.com http://www.freeswitchcookbook.com https://www.gofundme.com/freeswitch_ubuntu Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit: /r/freeswitch <https://www.reddit.com/r/freeswitch> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378) *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest

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FreeSWITCH Ubuntu Packages & Thanks!!!!
by Brian West 08 Mar '16

08 Mar '16

I would like to give a shout out to Fred Dixon and team over at Blindside for donating $2,000 USD Shailesh Tyagi from Novanet.net $1,000 USD Michael Murdock - $50 USD Clint Berry - $400 USD Chris Black - $50 USD For anyone wishing to donate visit: https://www.gofundme.com/freeswitch_ubuntu Thanks, -- *Brian West* brian(a)freeswitch.org *Twitter: @FreeSWITCH , @briankwest* http://www.freeswitchbook.com http://www.freeswitchcookbook.com https://www.gofundme.com/freeswitch_ubuntu Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit: /r/freeswitch <https://www.reddit.com/r/freeswitch> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378) *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest

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libyuv-dev dependencie
by Valter Nogueira 02 Mar '16

02 Mar '16

I want to solve libyuv-dev dependencie by building it by my own. Is there any recipe or tutorial to achieve this? Thank you Valter

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Error compiling freeswitch 1.6.6 with --disable-debug and possible fix
by freeswitch-dev.opencode＠spamgourmet.com 02 Mar '16

02 Mar '16

I'm getting a compilation error compiling the latest production release (1.6.6) when using --disable-debug with certain (as yet undermined) environment settings. The approximate steps I'm following are: curl -O https://files.freeswitch.org/releases/freeswitch/freeswitch-1.6.6.tar.xz tar -xvf freeswitch-1.6.6.tar.xz cd freeswitch-1.6.6 ./configure --disable-debug make Except I'm using makepkg, the build tool for Arch Linux. (It's ultimately for Arch Linux ARM on a Raspberry Pi Zero, but the same thing happens with normal x86_64 Arch Linux). When I use the exact steps above in a shell, make succeeds, but when I run the equivalent within ArchLinux's makepkg tool, I'm getting the following error (lightly sanitized): CC freeswitch-switch.o src/switch.c: In function ‘main’: src/switch.c:1194:5: error: ignoring return value of ‘read’, declared with attribute warn_unused_result [-Werror=unused-result] (void)read(fds[1], &v, sizeof(v)); ^ src/switch.c: In function ‘check_fd’: src/switch.c:236:5: error: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Werror=unused-result] (void)write(fd, &r, sizeof(r)); ^ cc1: all warnings being treated as errors Makefile:1988: recipe for target 'freeswitch-switch.o' failed make[2]: *** [freeswitch-switch.o] Error 1 make[2]: Leaving directory '~/builds/freeswitch/src/freeswitch-1.6.6' Makefile:2420: recipe for target 'all-recursive' failed make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory '~/builds/freeswitch/src/freeswitch-1.6.6' Makefile:970: recipe for target 'all' failed make: *** [all] Error 2 In parallel, I'm checking with the Arch Linux folks for help understanding the makepkg environment (perhaps some compilation *FLAGS environment variables?) that are likely needed to reproduce the error on other distributions. I'll reply further if I get better data from them. However, from a look at configure.ac, it does appear that unused result warnings/errors are being suppressed via SWITCH_AM_CFLAGS perhaps only in when debug is enabled: if test "${enable_debug}" = "yes"; then AC_DEFINE([DEBUG],[],[Enable extra debugging.]) saved_CFLAGS="$CFLAGS" CFLAGS= AX_CFLAGS_WARN_ALL_ANSI SWITCH_ANSI_CFLAGS=$CFLAGS CFLAGS="$saved_CFLAGS" if test "x${ax_cv_c_compiler_vendor}" = "xgnu" ; then if test "$ac_cv_gcc_supports_w_no_unused_result" = yes; then APR_ADDTO(SWITCH_AM_CFLAGS, -Wno-unused-result) fi APR_ADDTO(SWITCH_AM_CFLAGS, -g -ggdb) export DEBUG_CFLAGS="-g -ggdb" fi fi Though I'm a newbie so I may be missing something obvious. (For one, I don't yet understand the difference between SWITCH_AM_CFLAGS and other related variable(s).) I'm currently working around the error using the following patch: --- configure.ac.old 2016-02-23 16:50:04.190884018 -0800 +++ configure.ac 2016-02-23 16:50:29.103970709 -0800 @@ -410,6 +410,7 @@ APR_ADDTO(SWITCH_AM_CXXFLAGS, -fPIC) if test "$ac_cv_gcc_supports_w_no_unused_result" = yes; then APR_ADDTO(SWITCH_AM_CFLAGS, -Werror) + APR_ADDTO(SWITCH_AM_CFLAGS, -Wno-unused-result) fi if test "${enable_64}" = "yes"; then case "$host" in @@ -533,9 +534,6 @@ CFLAGS="$saved_CFLAGS" if test "x${ax_cv_c_compiler_vendor}" = "xgnu" ; then - if test "$ac_cv_gcc_supports_w_no_unused_result" = yes; then - APR_ADDTO(SWITCH_AM_CFLAGS, -Wno-unused-result) - fi APR_ADDTO(SWITCH_AM_CFLAGS, -g -ggdb) export DEBUG_CFLAGS="-g -ggdb" fi Can you tell whether I'm on the right track here (is this a bug in freeswitch's configure script)? If this is the right fix (or close to it), would you be interested in taking it? (And apologies if this isn't the best way to format code snippets for this mailing list; please let me know if there's a better way.) Thanks, David

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Cannot install or make libvpx2-dev on MacBook Pro running OS X 10.10
by Sanjoy Ghosh 02 Mar '16

02 Mar '16

Hello, Need help. I have been trying to build FREESwitch on a MacBook Pro running 10.10.5. I can’t find an install for libvpx2-dev, nor can I download sources to build. How do I get around this? Thanks, Sanjoy

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major build change in master.
by Michael Jerris 24 Feb '16

24 Feb '16

please note this important change that went into master today. As of today, we are no longer using system versions of libyuv and libvpx due to major conflicts with system versions of these libraries. These are now built static into the freeswitch core. Also note, mod_vpx no longer exists, it is automatically loaded as part of the core and you will no longer have mod_vpx.so or have to manually load it. I'll have more details coming, but let me know if you have any questions. Please note for anyone doing cross compiling, this probably needs a bit more work for you, I'll be working on fixing that this week. Mike

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