[Users] system busy - scenario

unplug maillisting at gmail.com
Thu May 18 11:58:51 CEST 2006


Thanks Samuel.  I have an idea after reading your comment.  Do you
mean the system busy situation is not relationship with error 407, 408
and 481?

For the sipp tool, I have figured out how to use it.  However, for the
high load performance evaluation.  I don't have idea how to do it and
I can't find any information about it as well.  Could you give me a
reference (link) about it?
Say, I have a 50 user accounts in the csv file and it will be loaded
for a build-in scenario with RTP package (uac_pcap.xml).  Do I need to
find 50 receving parties for that 50 callers?  How can I test it in
the receiving end without having 50 real receving parties?

You are right to figure out whether it is a config file or the network
problem.  The config file that I use is listed below.  From my limited
knowlegde, I can't find any clue to figure out whether it is a problem
of the configuration file.  Could you please take a quick look of the
config file and give me some hint to improve it?
Thanks a lot!
unplug

=========================config file=========================
debug=3
fork=yes
log_stderror=no

listen=210.14.25.5:5060		# INSERT EXTERNAL IP ADDRESS HERE
listen=210.14.25.5:6060		# INSERT EXTERNAL IP ADDRESS HERE
listen=10.200.0.228:5060		# INSERT INTERNAL IP ADDRESS HERE
listen=10.200.0.228:6060		# INSERT INTERNAL IP ADDRESS HERE
port=5060
children=16

dns=no
rev_dns=no
fifo="/tmp/openser_fifo"
fifo_db_url="mysql://openser:openser@localhost/openser"
fifo_mode=0666  #fifo permissions can be changed here
log_facility=LOG_LOCAL0
alias=o06.owtel.com
alias=210.14.25.5
alias=10.200.0.228

loadmodule "/usr/local/lib/openser/modules/mysql.so"
loadmodule "/usr/local/lib/openser/modules/sl.so"
loadmodule "/usr/local/lib/openser/modules/tm.so"
loadmodule "/usr/local/lib/openser/modules/rr.so"
loadmodule "/usr/local/lib/openser/modules/maxfwd.so"
loadmodule "/usr/local/lib/openser/modules/usrloc.so"
loadmodule "/usr/local/lib/openser/modules/registrar.so"
loadmodule "/usr/local/lib/openser/modules/auth.so"
loadmodule "/usr/local/lib/openser/modules/auth_db.so"
loadmodule "/usr/local/lib/openser/modules/uri.so"
loadmodule "/usr/local/lib/openser/modules/uri_db.so"
loadmodule "/usr/local/lib/openser/modules/mediaproxy.so"
loadmodule "/usr/local/lib/openser/modules/nathelper.so"
loadmodule "/usr/local/lib/openser/modules/textops.so"
loadmodule "/usr/local/lib/openser/modules/avpops.so"
loadmodule "/usr/local/lib/openser/modules/domain.so"
loadmodule "/usr/local/lib/openser/modules/permissions.so"
loadmodule "/usr/local/lib/openser/modules/xlog.so"
loadmodule "/usr/local/lib/openser/modules/acc.so"
loadmodule "/usr/local/lib/openser/modules/uac.so"
loadmodule "/usr/local/lib/openser/modules/group.so"

modparam("auth_db|permissions|uri_db|usrloc|domain|acc|group",
	"db_url", "mysql://openser:openser@localhost/openser")
modparam("auth_db", "calculate_ha1", 1)
modparam("auth_db", "password_column", "password")

modparam("nathelper", "rtpproxy_disable", 1)
modparam("nathelper", "natping_interval", 0)

modparam("mediaproxy","natping_interval", 30)
modparam("mediaproxy","mediaproxy_socket", "/var/run/mediaproxy.sock")
modparam("mediaproxy","sip_asymmetrics","/usr/local/etc/openser/sip-clients")
modparam("mediaproxy","rtp_asymmetrics","/usr/local/etc/openser/rtp-clients")

modparam("usrloc", "db_mode", 2)

modparam("registrar", "nat_flag", 6)

modparam("rr", "enable_full_lr", 1)

modparam("tm", "fr_inv_timer", 27)
modparam("tm", "fr_inv_timer_avp", "inv_timeout")

modparam("permissions", "db_mode", 1)
modparam("permissions", "trusted_table", "trusted")

modparam("avpops", "avp_url", "mysql://openser:openser@localhost/openser")
modparam("avpops", "avp_table", "usr_preferences")

modparam("acc", "log_level", 1)
modparam("acc", "log_flag", 1)
modparam("acc", "db_flag", 1)

route {

        xlog("L_INFO","---[$fU at MR]-$rm---\n");
	# -----------------------------------------------------------------
	# Sanity Check Section
	# -----------------------------------------------------------------
	if (!mf_process_maxfwd_header("10")) {
		sl_send_reply("483", "Too Many Hops");
		return;
	};

	if (msg:len > max_len) {
		sl_send_reply("513", "Message Overflow");
		return;
	};

	#------------------------------------------------------------------
	# Accounting section
	#------------------------------------------------------------------
	setflag(1);

	# -----------------------------------------------------------------
	# Record Route Section
	# -----------------------------------------------------------------
	if (method=="INVITE" && client_nat_test("3")) {
                xlog("L_INFO","---[$fU at MR:117]:behind NAT---\n");
		record_route();
		add_rr_param(";nat=yes");
	} else if (method!="REGISTER") {	
		record_route();	
	};

	# -----------------------------------------------------------------
	# Call Tear Down Section
	# do not send to voicemail if BYE or CANCEL
 	# is used to end call before user pickup or timeout
	# -----------------------------------------------------------------
	if (method=="BYE" || method=="CANCEL") {
		setflag(10);
                route(7);      #zzz-20060217
		end_media_session();
	};

	if (method=="PRACK") {   #zzz-20060217
                route(7);
        };

	# -----------------------------------------------------------------
	# Loose Route Section
	# -----------------------------------------------------------------
	if (loose_route()) {

		if (has_totag() && (method=="INVITE" || method=="ACK")) {

			if (client_nat_test("3")||search("^Route:.*;nat=yes")){
				setflag(6);
				use_media_proxy();
			};
		};

		route(1);
		return;
	};

	# -----------------------------------------------------------------
	# Call Type Processing Section
	# -----------------------------------------------------------------
	if (!is_uri_host_local()) {
		if (is_from_local() || allow_trusted()) {
			route(4);
			route(1);
		} else {
			sl_send_reply("403", "Forbidden");
		};
		return;
	};

	if (method=="CANCEL") {
		if (!t_check_trans()) {
			xlog("L_INFO","[$fU at MR:171]:CANCEL without matching transaction ...
ignore and discard.\n");
			return;
		}
		route(1);
		return;
	} else if (method=="INVITE") {
		route(3);
		return;
	} else if (method=="REGISTER") {
		route(2);
		return;
	} else if (method=="ACK") {
		return;
	};

	lookup("aliases");
	if (uri!=myself) {
		route(4);
		route(1);
		return;
	};

	if (!lookup("location")) {
		sl_send_reply("404", "User Not Found");
		return;
	};

	route(1);
}

route[1] {

        xlog("L_INFO","---[$fU at R1]---\n");
	# -----------------------------------------------------------------
	# Default Message Handler
	# -----------------------------------------------------------------

        if (method=="INVITE" && !isflagset(10) && isflagset(11)) {
                xlog("L_INFO","---[$fU at R1:205]: for t_on_failure2---\n");
                t_on_failure("2");
        }

	t_on_reply("1");

	if (!t_relay()) {

		if (method=="INVITE" || method=="ACK") {
			end_media_session();
		};

		sl_reply_error();
	};
}

route[2] {

	# -----------------------------------------------------------------
	# REGISTER Message Handler
	# -----------------------------------------------------------------

	if (!search("^Contact:[ ]*\*") && client_nat_test("7")) {
        	xlog("L_INFO","---[$fU at R2:228]:behind NAT---\n");
		setflag(6);
		fix_nated_register();
		force_rport();
	} else {
        	xlog("L_INFO","---[$fU at R2:233]:no NAT---\n");
	};

	sl_send_reply("100", "Trying");

	if (!www_authorize("sipdev01.owtel.com","subscriber")) {
        	xlog("L_INFO","---[$fU at R2:239]:Unauthorized---\n");
		www_challenge("sipdev01.owtel.com","0");
		return;
	};

	if (!check_to()) {
        	xlog("L_INFO","---[$fU at R2:245]:Unauthorized---\n");
		sl_send_reply("401", "Unauthorized");
		return;
	};

  	#-----------------------------------------------------
	# add by ringo zzz
	# desc: check if the account is activated
	# table: grp
  	#-----------------------------------------------------
	if (!is_user_in("From","active")) {
		xlog("L_INFO","---[$fU at R2:252]: 402 Payment Required---\n");
		sl_send_reply("402", "Payment Required");
		acc_db_request("402 - payment Required", "acc");
		return;
	};

	consume_credentials();

	if (!save("location")) {
		sl_reply_error();
	};
}

route[3] {

        xlog("L_INFO","---[$fU at R3]---\n");
	# -----------------------------------------------------------------
	# INVITE Message Handler
	# -----------------------------------------------------------------

	if (client_nat_test("3")) {
		setflag(7);
		force_rport();
		fix_nated_contact();
	};

	lookup("aliases");
	if (uri!=myself) {
		route(4);
		route(1);
		return;
	};


        if (avp_db_load("$ruri/username", "s:callfwd")) {
                if (avp_check("s:callfwd", "eq/voicemail/i")) {

xlog("L_INFO","---[$fU at R3:434]:$avp(s:callfwd):$ru---\n");
                        avp_pushto("$ruri", "s:requri");

xlog("L_INFO","---[$fU at R3:436]:$avp(s:callfwd):$ru---\n");
                        route(4);
                        route(21);
                        return;
                } else {
                        xlog("L_INFO","---[$fU at R3:441]: destination
uri: [$ru]---\n");
                        setflag(22);
                        avp_pushto("$ruri", "s:callfwd");
                        xlog("L_INFO","---[$fU at R3:444]: destination
uri: [$ru]---\n");
                        route(6);
                        return;
                };
                return;
        };

	lookup("aliases");
        xlog("L_INFO","---[$fU at R3:452]:RURI:$ru---\n");
        if (!lookup("location")) {
		route(15);
                return;
        };

	if (avp_db_load("$ruri/username", "s:fwdbusy")) {
		if (!avp_check("s:fwdbusy", "eq/$ruri/i")) {
			if (avp_check("s:fwdbusy", "eq/voicemail/i")) {
				#flag11 is used to mark forward directly to voicemail on busy
				xlog("L_INFO","---[$fU at R3:477]: s:fwdbusy to $avp(s:fwdbusy)
(setflag11)---\n");
				setflag(11);
			} else {
				xlog("L_INFO","---[$fU at R3:480]: s:fwdbusy to $avp(s:fwdbusy)
(setflag26)---\n");
				setflag(26);
			};
		};
	};

	if (avp_db_load("$ruri/username", "s:fwdnoanswer")) {
		if (!avp_check("s:fwdnoanswer", "eq/$ruri/i")) {
			if (avp_check("s:fwdnoanswer", "eq/voicemail/i")) {
				#flag11 is used to mark forward directly to voicemail on no answer
				xlog("L_INFO","---[$fU at R3:490]: s:fwdnoanswer to
$avp(s:fwdnoanswer) (setflag11)---\n");
				setflag(11);
			} else {
				xlog("L_INFO","---[$fU at R3:493]: s:fwdnoanswer to
$avp(s:fwdnoanswer) (setflag27)---\n");
				setflag(27);
			};
		};
	};

	t_on_failure("1");

	route(4);
	route(1);
}

route[4] {

        xlog("L_INFO","---[$fU at R4]---\n");
	# -----------------------------------------------------------------
	# NAT Traversal Section
	# -----------------------------------------------------------------

	if (isflagset(6) || isflagset(7)) {
		if (!isflagset(8)) {
			setflag(8);
			use_media_proxy();
		};
	};
}

route[5] {

        xlog("L_INFO","---[$fU at R5]:10.200.0.216---\n");
	# -----------------------------------------------------------------
	# PSTN Handler
	# -----------------------------------------------------------------

	rewritehost("10.200.0.216"); # INSERT YOUR PSTN GATEWAY IP ADDRESS

	avp_write("i:45", "inv_timeout");

	t_on_failure("1");

	route(4);
	route(1);
}

route[6] {

        xlog("L_INFO","---[$fU at R6]:RURI:$ru---\n");
	# ------------------------------------------------------------------------
	# Call Forwarding Reply Route Handler
	#
	# This must be done as a route block because sl_send_reply() cannot be
	# called from the failure_route block
	# ------------------------------------------------------------------------
	lookup("aliases");

	if (!isflagset(22)) {
		append_branch();
	};
			
	if (uri!=myself) {

		route(4);
		route(1);
		return;
	};

	if (!lookup("location")) {

		if (uri=~"^sip:[0-9]*@") {
			xlog("L_INFO","---[$fU at R6:600]:RURI:$ru---\n");
			#route(16);
			return;
		};

		sl_send_reply("404", "User Not Found");
	};

	route(4);
	route(1);
}

route[7] {

	#-----------------------------------------------------------
	#This route is for NAT purpose
	#-----------------------------------------------------------
        xlog("L_INFO","---[$fU at R7]---\n");
	if (!search("^Contact:[ ]*\*") && client_nat_test("7")) {
        	#xlog("L_INFO","---[$fU at R7:373]---\n");
		setflag(6);
		fix_nated_register();
		force_rport();
	};
}

route[15] {
	xlog("L_INFO","---[$fU at R15]:$ru---\n");

	if (is_user_in("From", "record")) {
		if (uri=~"^sip:852[0-9]*@") {
                	xlog("L_INFO","---[$fU at R15:436]:$ru:852-record---\n");
			route(4);
			route(23);
                	return;
		} else if ((uri=~"^sip:639[0-9]*@") || (uri=~"^sip:632[0-9]*@")) {

xlog("L_INFO","---[$fU at R15:441]:$ru:639/632-record---\n");
                        route(4);
                        route(23);
                        return;
		} else if (uri=~"^sip:1[0-9]*@") {
                        xlog("L_INFO","---[$fU at R15:446]:$ru:1-record---\n");
                        route(4);
                        route(23);
                        return;
                } else if
(uri=~"^sip:2000\**@|^sip:2300\**@|^sip:2400\**@|^sip:2000@|^sip:2300@|^sip:2400@")
{
                        xlog("L_INFO","---[$fU at R15:451]:$ru---\n");
                        route(4);
                        route(5);
                        return;
		} else {
			route(29);
		};
	} else {
		if (uri=~"^sip:852[0-9]*@") {
                	xlog("L_INFO","---[$fU at R15:436]:$ru:852-norecord---\n");
			prefix("960");
			route(4);
			route(21);
                	return;
                } else if ((uri=~"^sip:1[0-9]*@") || (uri=~"^sip:639[0-9]*@")) {
                        prefix("960");
                        xlog("L_INFO","---[$fU at R15:467]:$ru---\n");
                        route(4);
                        route(20);
                        return;
                } else if (uri=~"^sip:632[0-9]*@") {
                        prefix("960");
                        xlog("L_INFO","---[$fU at R15:473]:$ru---\n");
                        route(4);
                        route(22);
                        return;
                } else if
(uri=~"^sip:2000\**@|^sip:2300\**@|^sip:2400\**@|^sip:2000@|^sip:2300@|^sip:2400@")
{
                        xlog("L_INFO","---[$fU at R15:478]:$ru---\n");
                        route(4);
                        route(5);
                        return;
		} else {
			route(29);
		};
	}

}

route[16] {
	xlog("L_INFO","---[$fU at R16]:$ru---\n");
	#-------------------------------------------------------------
	#for call forwarding
	#-------------------------------------------------------------

	if (uri=~"^sip:8[0-9]{11}@") {
		#prevent to dial a unlogin sip number (prevent looping)
                xlog("L_INFO","---[$fU at R16:865]:$ru:404 Not Found---\n");
		route(29);
                #sl_send_reply("404", "Not Found");
                return;
	};
	#avp_pushto("$ruri", "s:touri");
        if (uri=~"sip:001[0-9]*@") {
                xlog("L_INFO","---[$fU at R16:868]:$ru:IDD---\n");
                route(4);
		route(1);
                #route(23);
                return;
        }
	if (avp_check("s:locale","eq/US/g")) {  #source from US
        	xlog("L_INFO","---[$fU at R16:874]:$ru:From US---\n");
		if (uri=~"^sip:1213[0-9]*@|^sip:1310[0-9]*@|^sip:1323[0-9]*@|^sip:1562[0-9]*@|^sip:1619[0-9]*@|^sip:1626[0-9]*@|^sip:1650[0-9]*@|^sip:1661[0-9]*@|^sip:1760[0-9]*@|^sip:1805[0-9]*@|^sip:1818[0-9]*@|^sip:1831[0-9]*@|^sip:1858[0-9]*@|^sip:1949[0-9]*@|^sip:1951[0-9]*@")
{
			#strip(1);
			#prefix("965");
                	xlog("L_INFO","---[$fU at R16:882]:$ru---\n");
                	route(4);
                        route(1);
                	#route(26);
                	return;
		} else if (uri=~"^sip:1408[0-9]*@|^sip:1415[0-9]*@|^sip:1510[0-9]*@|^sip:1707[0-9]*@|^sip:1714[0-9]*@|^sip:1925[0-9]*@"
) {
			#strip(1);
			#prefix("967");
                	xlog("L_INFO","---[$fU at R16:889]:$ru---\n");
                	route(4);
                        route(1);
                	#route(26);
                	return;
		} else if (uri=~"^sip:1209[0-9]*@|^sip:1530[0-9]*@|^sip:1559[0-9]*@|^sip:1916[0-9]*@"
) {
			#strip(1);
			#prefix("969");
                	xlog("L_INFO","---[$fU at R16:896]:$ru---\n");
                	route(4);
                        route(1);
                	#route(26);
                	return;
		} else {
			#prefix("001");
                       	xlog("L_INFO","---[$fU at R16:902]:$ru:Default USGW---\n");
			route(4);
                        route(1);
			#route(23);
			return;
		};
	} else {				#source from HK
        	xlog("L_INFO","---[$fU at R16:908]:$ru:From HK---\n");
        	#HK to 1624XXXXXXXXXX
        	if (uri=~"^sip:1624[0-9]*@") {
                        xlog("L_INFO","---[$fU at R16:911]:$ru:IDD From HK---\n");
                        route(4);
                        route(1);
                        #route(23);
                        return;
		} else {
			#prefix("9");
                        xlog("L_INFO","---[$fU at R16:917]:$ru:Default HKGW---\n");
			route(4);
			route(1);
			#route(5);
			return;
		};
	};
}

route[20] {
	xlog("L_INFO","---[$fU at R20]:10.30.0.212---\n");
        rewritehost("10.30.0.212");
        avp_write("i:45", "inv_timeout");
        t_on_failure("1");

        route(4);
        route(1);
}

route[21] {
	xlog("L_INFO","---[$fU at R21]:10.30.0.215---\n");
        rewritehost("10.30.0.215");
        avp_write("i:45", "inv_timeout");
        t_on_failure("1");

        route(4);
        route(1);
}

route[22] {
        xlog("L_INFO","---[$fU at R22]:10.200.0.3---\n");
        rewritehost("10.200.0.3"); # INSERT CS GATEWAY IP ADDRESS
        avp_write("i:45", "inv_timeout");

        t_on_failure("1");

        route(4);
        route(1);
}

route[23] {
        xlog("L_INFO","---[$fU at R23]:10.200.0.224---\n");
        rewritehost("10.200.0.224"); # INSERT GATEWAY IP ADDRESS
        avp_write("i:45", "inv_timeout");

        t_on_failure("1");
        route(4);
        route(1);
}

route[29] {
        # ----------------------------------------------------------
        # -----> drop the call
        # ----------------------------------------------------------
        xlog("L_INFO","---[$fU at R29:685]:405 Method Not Allowed---\n");
      	sl_send_reply("405", "Method Not Allowed");
	acc_db_request("405 - Method Not Allowed", "acc");
     	return;
}

onreply_route[1] {

        xlog("L_INFO","---[$fU at ORR1]---\n");
	if ((isflagset(6) || isflagset(7)) &&
	    (status=~"(180)|(183)|2[0-9][0-9]")) {

		if (!search("^Content-Length:[ ]*0")) {
			use_media_proxy();
		};
	};

	if (client_nat_test("1")) {
		fix_nated_contact();
	};
}

failure_route[1] {

        xlog("L_INFO","---[$fU at FR1]---\n");
	if (t_check_status("487")) {
		return;
	};

	if (isflagset(26) && t_check_status("486")) {
		if (avp_pushto("$ruri", "s:fwdbusy")) {
			xlog("L_INFO","---[$fU at FR1:1044]: fwdbusy---\n");
			avp_delete("s:fwdbusy");
			resetflag(26);
			route(6);
			return;
		};
	};

	if (isflagset(27) && t_check_status("408")) {
		if (avp_pushto("$ruri", "s:fwdnoanswer")) {
			xlog("L_INFO","---[$fU at FR1:1054]: fwdnoanswer---\n");
			avp_delete("s:fwdnoanswer");
			resetflag(27);
			route(6);
			return;
		};
	};

	end_media_session();
}

failure_route[2] {
        xlog("L_INFO","---[$fU at FR2]:for voicemail---\n");
        if (!t_was_cancelled()) {
                revert_uri();
                rewritehostport("10.30.18.230:5060");  #asterisk server ip
                append_branch();
                xlog("L_INFO","---[$fU at FR2:1071]: Call to voicemail---\n");
                setflag(10);
                resetflag(11);
                route(1);
        }
}


On 5/16/06, samuel <samu60 at gmail.com> wrote:
> 2006/5/16, unplug <maillisting at gmail.com>:
> > I have experienced an error with using openser 1.0.1 + mediaproxy 1.4.2.
> >
> > The system works fine in the following loading.
> > User login to the system: 20 hardware phones
> > concurrent RTP session: 5
> >
> > However, when I increase number of user to 50 and concurrent RTP
> > session to 30.  After a few minutes, the system is very unstable.  SIP
> > phones display "wait logon" message as they can't logon to the system
> > in some reasons and no one can make call even some users can logon.
> > This situation will remain few minutes and it will resume normal.
> > After a while, system will become unstable again.
> >
> This probably happens because all the listeners are busy (DNS lookup,
> mysql queries, exec_*) and the incoming requests are not answered.
> That's why your UA shows the can't logon because they get no answer.
> This requests are "queued" and they are processed when the load
> decreases, and that's why the system "reverts to normality".
>
>
> > Anyone has such experience before?  I have grepped the log using ngrep
> > but it is very difficult to troubleshoot as it is a log of whole
> > system with 50 users.  In my simple analyst, I found that the most
> > error replies happened in the log are listed below.
>
> > 407 - proxy authentication required
> This is returned everytime the route reaches a proxy_challenge
> statement. It's used to obtain the user credentials in the digest
> algorithm. Usually the first time a UA registers is challenged and the
> challenge parameters are valid for a period of time. After this
> period, the digest challenge has expired and a new challenge will be
> issued.
>
>
> > 408 - request timeout
> This usually happens when openSER has relayed a request and does not
> receive any response within fr_inv_timeout (this name may have changed
> since the time I checked and now).
>
> > 481 - call leg transaction does not exit
> This error is returned by UAs when they receive a request within a
> transaction which does not exists| has ended.
> As an example:
> when the ACK (after the INV-OK) is lost, the UA terminates the invite
> transaction. When the other UA sends a BYE, since there is no
> transaction, this BYE is answered with a "481 call leg transaction
> does not exist".
>
> > Do above errors will make the system unstable?  Which one is the most
> > critical?  When and how the above errors will occur?
> >
> > To repeat the situation above, it involves a lot of resources.  Is
> > there any sip phone simulator which can be used to simulate as a large
> > number of user to create calls simultaneously?
> >
> Take a look at sipp for high load performance evaluation.
>
> I guess there's some bottleneck either in your config file or in your
> network that leads to this "network congestion" .
>
> Hope it helps,
>
> Samuel.
>
>
> > Thanks!!
> >
> > _______________________________________________
> > Users mailing list
> > Users at openser.org
> > http://openser.org/cgi-bin/mailman/listinfo/users
> >
>




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