[OpenSIPS-Users] CACHEDB_MEMCACHED Module - libmemcached undefined symbol issue
Bogdan-Andrei Iancu
bogdan at opensips.org
Mon Nov 21 12:59:09 CET 2016
Hi Maciej,
Thanks for the detailed report.
Do you think the error is related to the key you are trying to fetch or
is it related to the simply being the second query you perform ? What
if you perform from the very beginning a a query on the second key ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 18.11.2016 19:53, Maciej Bylica wrote:
> Hello
>
> As i mentioned before memcached is already installed. I am using
> innodb_memcache.containers to implement memcached as a plugin.
>
> netstat -plnt | grep 9999
>
> tcp 0 0 127.0.0.1:9999 <http://127.0.0.1:9999> 0.0.0.0:*
> LISTEN 18421/mysqld
>
>
> Everything looks fine i have full transparency, data provided by
> memcached CLI (telnet) are seen inside innodb table and vise versa.
>
> I am using the latest 2.2.2 git opensips rel. and memcached module loaded:
>
> loadmodule "cachedb_memcached.so"
>
> modparam("cachedb_memcached",
> "cachedb_url","memcached:default://localhost:9999,127.0.0.1/
> <http://127.0.0.1/>")
>
>
> The script i am using is just the basic one, without any additional
> configuration.
> Inside the script there is following operation provided:
>
> cache_fetch("memcached:default","$tU",$avp(i:601));
>
>
> Innodb table contains following data:
>
> +-------------+-------------+------+------+------+
>
> | id | num | c3 | c4 | c5 |
>
> +-------------+-------------+------+------+------+
>
> | 49121112233 | 49121112233 | 0 | 3 | 0 |
>
> | 49221112233 | 49221112233 | 0 | 1 | 0 |
>
> | 49221112234 | 49221112234 | 0 | 2 | 0 |
>
> +-------------+-------------+------+------+------+
>
>
> Now, i am sending INVITE with tU = 49121112233 and getting proper
> behavior which means:
> - no error inside the opensips.log, xlog followingcache_fetch returns
> correct $avp(i:601)
> - mysqld.log shows
>
> <95 get 49121112233
>
> >95 sending key 49121112233
>
> >95 END
>
>
> but really strange is that calling tU = 49221112233 is causing quite
> opposite results:
> - following error is shown
>
> DBG:core:cachedb_fetch: from script [memcached] - with grp [default]
>
> ERROR:cachedb_memcached:wrap_memcached_get: Failed to get: SYSTEM ERROR
>
> - no mysqld debug is produced
>
>
> The last one example(tU = 49221112234)is failing with the same error.
>
>
> Memcached is loaded with all those data
>
> Connected to localhost.
>
> Escape character is '^]'.
>
> get 49221112233
>
> VALUE 49221112233 0 11
>
> 49221112233
>
> END
>
> get 49221112234
>
> VALUE 49221112234 0 11
>
> 49221112234
>
> END
>
>
> but because of some reasons memcached module is not utilized.
> As aforementioned, opensips script does not have any $rU filtering
> setup, so should query for any data it is asked for.
> Maybe i am wrong with some of my assumptions or the way memcached is
> configured, so kindly help me to understand where the problem is located.
>
> Thanks
> Maciej.
>
>
>
>
>
>
>
> 2016-11-15 18:09 GMT+01:00 Bogdan-Andrei Iancu <bogdan at opensips.org
> <mailto:bogdan at opensips.org>>:
>
> OK, thank you for the update Maciej,
>
> Best regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com <http://www.opensips-solutions.com>
>
> On 15.11.2016 18:28, Maciej Bylica wrote:
>> Hi Bogdan,
>> Thanks for reply.
>> Right, Opensips module was not the source of the problem.
>> I've managed to solve the issue, memcache is working fine.
>> Thanks
>> Maciej.
>> 2016-11-10 12:56 GMT+01:00 Bogdan-Andrei Iancu
>> <bogdan at opensips.org <mailto:bogdan at opensips.org>>:
>>
>> Hi Maciej, As I see, you are manually compiling and
>> installing the memcached stuff - any special reason for doing
>> that ? (versus using packages) As the problem seems to be in
>> the lib, not in the OpenSIPS module. Regards,
>>
>> Bogdan-Andrei Iancu
>> OpenSIPS Founder and Developer
>> http://www.opensips-solutions.com
>> <http://www.opensips-solutions.com>
>>
>> On 09.11.2016 18:41, Maciej Bylica wrote:
>>> Hello I am struggling with memcached installation with the
>>> latest git opensips 2.2.2 and centos 6.8 Here are version
>>> releases i am using: libmemcached-1.0.18 (./configure, make
>>> && make install) memcached-1.4.33 (./configure, make && make
>>> install) with
>>> LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH memcached -d
>>> -u nobody -m 1048 -p 9999 127.0.0.1 does not produce any
>>> error but what is really puzzling me during the opensips
>>> start is the error below: DBG:core:load_module: loading
>>> module
>>> /usr/local/lib64/opensips/modules/cachedb_memcached.so
>>> ERROR:core:sr_load_module: could not open module
>>> </usr/local/lib64/opensips/modules/cachedb_memcached.so>:
>>> /usr/local/lib/libmemcached.so.11: undefined symbol:
>>> pthread_once Can someone please guide me how to put
>>> memcached up and running ?
>>> Opensips is compiled with cachedb_memcached module.
>>> Thanks in advance.
>>> Maciej
>>>
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>>
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