[sr-dev] Redis disconnect when websocket endpoint try to call

[Vicente Hernando]

Hello,

On 03/02/2015 09:51 AM, Yuriy Gorlichenko wrote:
> Hello. I use this version of kamailio
>
>  kamailio -v
> version: kamailio 4.3.0-dev4 (x86_64/linux) a6510b
> flags: STATS: Off, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, 
> DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, 
> F_MALLOC, DBG_F_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 8MB
> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
> id: a6510b
> compiled on 05:30:34 Feb 18 2015 with gcc 4.8.2
>
>
> Now i Have some problems with redis.
>
>  I try to get some replies from redis. Time after time redis request 
> give me null result.
>
> I see this error at log when this reply received
>
>                redisc_exec(): Redis error: Server closed the connection
>
You seem to have a problem connecting to your redis server.

Could you post more of the log? Redis module should try to reconnect and 
execute the command again.

Also, you should study the log in the part where redis module 
initializes, etc.


> This happens only with websocket endpoints. My queries is:
>
> redis_cmd("srv1", "EXISTS $si", "s");
>
> So at xLOG i see that $si correctly sended, but result is null. At db 
> I keep key IP with value TIMESTAMP
>
In the case redis module cannot connect to the server NULL reply is correct.

Vicente.

> Intresting that route, that gives me this result idependend of WS or 
> UDP endpoint. IT does not know about it anything.
>
> I try to cach redis-cli: monitor log, but this answered me nothing.
>
> I Logging $si before redis replies and it is ok.
>
> My exaple of ROUTE that takes this walues from redis is:
>
> route[TOASTERISK] {
> redis_cmd("srv1", "EXISTS $si", "s");
> xlog("L_INFO","ASTERISK with ip $si is {$redis(s=>value)}");
>
> }
>
> Asterisk sends me option method requests every 10 seconds and I set it 
> to redis with key
> $si  and value $TS
>
> IT lives at redis 20 seconds and rewrites with every new request
>
> so when invite come to kamailio it just check - does this key exists 
> (ROUTE TOASTERISK)
>
> When I catch this error (null) I look at redis and see that key 
> exisit. But it does not mateer. If it not exisit redis myst reply with 
> 0. Now with null.
>
>
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