[SR-Users] cached $TV is 0 in failure route

[Klaus Darilion]

On 22.03.2012 15:56, Daniel-Constantin Mierla wrote:
> Hello,
>
> On 3/22/12 11:08 AM, Klaus Darilion wrote:
>> Hi!
>>
>> Is this by design? I would expect it to be either the same value as in
>> the request route, or even better to be calculated new every time it
>> enters the failure route.
> $TV(...) takes inner name, any of them is 0? Btw, is it 0 or $null?

Sorry for the missing information. I discovered the problem when using 
the cached versions: (s) and (u).

The problem seems to happen not all the time, maybe related to processes 
which processed the messages. I couldn't find a problem-pattern.

version: kamailio 3.3.0-dev5 (i386/linux) 7a8ad6-dirty
flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, 
DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, 
DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, 
USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, 
MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 4MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 7a8ad6 -dirty

# Message is received and forwarded
[28766] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488956.78208
#No answer yet, retransmission is received
[28767] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488956.578226
#No answer yet, second retransmission is received
[28768] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488957.578266
#After 3 seconds the failure route triggers
$TV(s).$TV(u) = 0.0
[28770]   $TV(s) == $null
[28770]   $TV(u) == $null

Bug: (s) and (u) are $null.

[28767] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488966.235403
[28768] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488966.735379
[28769] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488967.735787
[28770] FAILURE_ROUTE: $TV(s).$TV(u) = 1332488969.214139
[28770]   $TV(s) == 1332488969
[28770]   $TV(u) == 214139

May be correct

[28768] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488977.141683
[28769] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488977.640992
[28766] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488978.641067
[28770] FAILURE_ROUTE: $TV(s).$TV(u) = 1332488980.89135
[28770]   $TV(s) == 1332488980
[28770]   $TV(u) == 89135

May be correct

[28768] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488983.199731
[28769] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488983.699332
[28766] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488984.699386
[28770] FAILURE_ROUTE: $TV(s).$TV(u) = 1332488986.151654
[28770]   $TV(s) == 1332488986
[28770]   $TV(u) == 151654

May be correct

[28769] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488989.158925
[28766] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488989.658643
[28767] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488990.658706
[28770] FAILURE_ROUTE: $TV(s).$TV(u) = 1332488986.151654
[28770]   $TV(s) == 1332488986
[28770]   $TV(u) == 151654

Bug: $TV is the same value as in the last failure route of the last message

[28769] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488995.70218
[28766] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488995.570014
[28767] REQUEST_ROUTE: $TV(s).$TV(u) = 1332488996.570029
[28770] FAILURE_ROUTE: $TV(s).$TV(u) = 1332488998.26641
[28770]   $TV(s) == 1332488998
[28770]   $TV(u) == 26641

May be correct


regards
Klaus