Hello, all -- I am a nOOb having difficulty debugging a load
balancing implementation. I must route only to dotted decimal
IP address, because my gateways are not available in DNS.
Any help would be appreciated. I am running opensips-1.5.1-notls
on Linux kernel 2.6.18-128.2.1.el5 / CentOS release 5.3 (Final)
Many thanks,
JS Robinson
"communichanic"
My load_balancer table is:
+----+----------+--------------------+------------+-------------+
| id | group_id | dst_uri | resources | description |
+----+----------+--------------------+------------+-------------+
| 1 | 1 | sip:126.137.16.148 | mcu1=322 | Router 8 |
| 3 | 1 | 126.137.16.145 | mcu2=644 | Router 5 |
| 4 | 1 | 126.137.16.153 | mcu2=437 | Router 13 |
| 6 | 1 | sip:97.65.187.10 | mcu3 = 322 | Router 104 |
+----+----------+--------------------+------------+-------------+
If I change my dst_uri to sip:126.137.16.145, I get a slightly
different result from what is shown below. It tries to do a
DNS lookup, which (predictably) fails.
From examining the logs, I am fairly confident that the table is
populated correctly.
Here is a code snippett which handles an incoming call, with log
results shown below
#
xlog("L_ERR"," JSR: Checking Laundry list...");
xlog("L_ERR"," Starting LB code with selected DU $du\n");
if ($ru=~"^sip:5506") {
xlog("L_ERR"," JSR: Call for 5506. \n");
if (!load_balance("1","mcu2")) {
sl_send_reply("503","Service full mcu2");
xlog("L_ERR", "Error! LB service full on MCU 2. \n");
xlog("L_ERR"," Bail out.\n");
exit;
} else {
xlog("L_ERR"," LB selected $du for MCU 2. \n");
if (!t_relay()) {
sl_reply_error();
xlog("L_ERR"," Back from t_relay \n");
}
}
}
#
Checking Laundry list...
16:47:50 [4778] DBG:core:pv_get_dsturi: no destination URI
Starting LB code with selected DU <null>
JSR: Call for 5506.
16:47:50 [4778] DBG:load_balancer:do_load_balance: found requested
(0) resource mcu2
16:47:50 [4778] DBG:dialog:build_new_dlg: new dialog 0xb60f6160
(c=call-71e1e3d0-0864-2c10-1116...@74.93.75.194,f=sip:17982468...@174.39.15.93,t=sip:550617985431...@174.39.15.93,ft=4a5d4bc2-2b)
on hash 118
16:47:50 [4778] DBG:core:parse_headers: flags=400
16:47:50 [4778] DBG:dialog:populate_leg_info: route_set , contact
sip:17982468...@74.93.75.194:5070, cseq 1 and bind_addr
udp:174.39.15.93:5060
16:47:50 [4778] DBG:dialog:dlg_set_leg_info: set leg 0 for
0xb60f6160: tag=<4a5d4bc2-2b> rr=<>
ct=<sip:17982468...@74.93.75.194:5070> cseq=<1>
16:47:50 [4778] DBG:dialog:link_dlg: ref dlg 0xb60f6160 with 3 -> 3
16:47:50 [4778] DBG:rr:add_rr_param: adding (;did=67.99ee0b9) 0x81a5290
16:47:50 [4778] DBG:load_balancer:do_load_balance: destination
<126.137.16.145> selected for LB set with free=644 (max=644)
16:47:50 [4778] DBG:load_balancer:do_load_balance: destination
<126.137.16.153> selected for LB set with free=437 (max=644)
LB selected 126.137.16.145 for MCU 2.
16:47:50 [4778] DBG:tm:t_newtran: transaction on entrance=(nil)
16:47:50 [4778] DBG:core:parse_headers: flags=ffffffffffffffff
16:47:50 [4778] DBG:core:parse_headers: flags=78
16:47:50 [4778] DBG:tm:t_lookup_request: start searching: hash=22525,
isACK=0
16:47:50 [4778] DBG:tm:matching_3261: RFC3261 transaction matching failed
16:47:50 [4778] DBG:tm:t_lookup_request: no transaction found
16:47:50 [4778] DBG:tm:run_reqin_callbacks: trans=0xb60f6318,
callback type 1, id 1 entered
16:47:50 [4778] DBG:tm:run_reqin_callbacks: trans=0xb60f6318,
callback type 1, id 0 entered
16:47:50 [4778] DBG:dialog:get_dlg_timeout: invalid AVP value, use
default timeout
16:47:50 [4778] DBG:core:parse_headers: flags=ffffffffffffffff
16:47:50 [4778] DBG:core:check_via_address: params 74.93.75.194,
74.93.75.194, 0
16:47:50 [4778] DBG:core:_shm_resize: resize(0) called
16:47:50 [4778] DBG:tm:_reply_light: reply sent out. buf=0x81b6d50:
SIP/2.0 1..., shmem=0xb60f7f70: SIP/2.0 1
16:47:50 [4778] DBG:tm:_reply_light: finished
####
#### Things seem to go wrong here. ... and the
#### xlog("L_ERR"," Back from t_relay \n");
#### never gets executed.
####
16:47:50 [4778] ERROR:core:parse_uri: bad uri, state 0 parsed:
<206.> (4) / <126.137.16.145> (12)
16:47:50 [4778] ERROR:tm:uri2proxy: bad_uri: 126.137.16.145
16:47:50 [4778] ERROR:tm:t_forward_nonack: failure to add branches
16:47:50 [4778] DBG:tm:t_relay_to: t_forward_nonack returned error
16:47:50 [4778] DBG:core:parse_headers: flags=ffffffffffffffff
16:47:50 [4778] DBG:core:check_via_address: params 74.93.75.194,
74.93.75.194, 0
16:47:50 [4778] DBG:tm:run_trans_callbacks: trans=0xb60f6318,
callback type 128, id 0 entered
16:47:50 [4778] DBG:dialog:next_state_dlg: dialog 0xb60f6160 changed
from state 1 to state 5, due event 4
16:47:50 [4778] DBG:dialog:dlg_onreply: dialog 0xb60f6160 failed
(negative reply)
16:47:50 [4778] DBG:dialog:unref_dlg: unref dlg 0xb60f6160 with 1 -> 2
16:47:50 [4778] DBG:tm:cleanup_uac_timers: RETR/FR timers reset
16:47:50 [4778] DBG:tm:set_timer: relative timeout is 500000
16:47:50 [4778] DBG:tm:insert_timer_unsafe: [4]: 0xb60f63e0 (19400000)
16:47:50 [4778] DBG:tm:set_timer: relative timeout is 30
16:47:50 [4778] DBG:tm:insert_timer_unsafe: [0]: 0xb60f63fc (48)
16:47:50 [4778] DBG:tm:_reply_light: reply sent out. buf=0x81b6ea8:
SIP/2.0 4..., shmem=0xb60f7f70: SIP/2.0 4
16:47:50 [4778] DBG:tm:_reply_light: finished
16:47:50 [4778] DBG:tm:t_relay_to: generation of a stateful reply on
error succeeded
16:47:50 [4778] DBG:dialog:unref_dlg: unref dlg 0xb60f6160 with 1 -> 1
16:47:50 [4778] DBG:tm:t_unref: UNREF_UNSAFE: after is 0
16:47:50 [4778] DBG:core:destroy_avp_list: destroying list (nil)
16:47:50 [4778] DBG:core:receive_msg: cleaning up
16:47:51 [4782] DBG:tm:utimer_routine: timer routine:4,tl=0xb60f63e0
next=(nil), timeout=19400000
16:47:51 [4782] DBG:tm:retransmission_handler: retransmission_handler
: reply resending (t=0xb60f6318, SIP/2.0 4 ... )
16:47:51 [4782] DBG:tm:t_retransmit_reply: buf=0x15b860: SIP/2.0
4..., shmem=0xb60f7f70: SIP/2.0 4
16:47:51 [4782] DBG:tm:set_timer: relative timeout is 1000000
16:47:51 [4782] DBG:tm:insert_timer_unsafe: [5]: 0xb60f63e0 (20400000)
16:47:51 [4782] DBG:tm:retransmission_handler: retransmission_handler
: done
16:47:52 [4782] DBG:tm:utimer_routine: timer routine:5,tl=0xb60f63e0
next=(nil), timeout=20400000
16:47:52 [4782] DBG:tm:retransmission_handler: retransmission_handler
: reply resending (t=0xb60f6318, SIP/2.0 4 ... )
16:47:52 [4782] DBG:tm:t_retransmit_reply: buf=0x15b860: SIP/2.0
4..., shmem=0xb60f7f70: SIP/2.0 4
16:47:52 [4782] DBG:tm:set_timer: relative timeout is 2000000
16:47:52 [4782] DBG:tm:insert_timer_unsafe: [6]: 0xb60f63e0 (22400000)
16:47:52 [4782] DBG:tm:retransmission_handler: retransmission_handler
: done
16:47:54 [4782] DBG:tm:utimer_routine: timer routine:6,tl=0xb60f63e0
next=(nil), timeout=22400000
16:47:54 [4782] DBG:tm:retransmission_handler: retransmission_handler
: reply resending (t=0xb60f6318, SIP/2.0 4 ... )
16:47:54 [4782] DBG:tm:t_retransmit_reply: buf=0x15b860: SIP/2.0
4..., shmem=0xb60f7f70: SIP/2.0 4
16:47:54 [4782] DBG:tm:set_timer: relative timeout is 4000000
16:47:54 [4782] DBG:tm:insert_timer_unsafe: [7]: 0xb60f63e0 (26400000)
16:47:54 [4782] DBG:tm:retransmission_handler: retransmission_handler
: done
16:47:58 [4782] DBG:tm:utimer_routine: timer routine:7,tl=0xb60f63e0
next=(nil), timeout=26400000
16:47:58 [4782] DBG:tm:retransmission_handler: retransmission_handler
: reply resending (t=0xb60f6318, SIP/2.0 4 ... )
16:47:58 [4782] DBG:tm:t_retransmit_reply: buf=0x15b860: SIP/2.0
4..., shmem=0xb60f7f70: SIP/2.0 4
16:47:58 [4782] DBG:tm:set_timer: relative timeout is 4000000
16:47:58 [4782] DBG:tm:insert_timer_unsafe: [7]: 0xb60f63e0 (30400000)
16:47:58 [4782] DBG:tm:retransmission_handler: retransmission_handler
: done
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