[OpenSIPS-Users] CACHEDB_MEMCACHED Module - libmemcached undefined symbol issue

Maciej Bylica mbgatherer at gmail.com
Wed Nov 23 17:21:18 CET 2016 

Hi,

Don't know there the problem was located. Port 9999 was only utilized by
memcached process.
Anyway i hope there are no issues within the memcached module code.

Thanks
Maciej.

2016-11-22 10:30 GMT+01:00 Bogdan-Andrei Iancu <bogdan at opensips.org>:

> Hi Maciej,
>
> That is weired, but I'm glad you solved it. I mean it is weired (with the
> wrong port) why it worked for some and did not for other keys :-/
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
> On 21.11.2016 23:44, Maciej Bylica wrote:
>
> Ok, i figured it out, that the problem relies in port number definition.
> I am getting no issues with 11211.
>
> Thanks
> Maciej
>
> 2016-11-21 22:20 GMT+01:00 Maciej Bylica <mbgatherer at gmail.com>:
>
>> Hi Bogdan,
>>
>> Thanks for the reply.
>>
>> It seems it is related to the key, it doesn't matter which query is it.
>> First query on the second key does not change anything.
>> I've just added additional key 49101112233 and it works (query was
>> fired), but 49331112233 does not.
>>
>> Thanks
>> Maciej.
>>
>>
>> 2016-11-21 12:59 GMT+01:00 Bogdan-Andrei Iancu <bogdan at opensips.org>:
>>
>>> 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 Developerhttp://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              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/")
>>> 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 following cache_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 $rU filtering
>>> setup, so should query for any data it is asked for.
>>> Maybe i am wrong with some of my assumptions or the way memcached is
>>> configured, so kindly help me to understand where the problem is located.
>>> Thanks
>>> Maciej.
>>>
>>> 2016-11-15 18:09 GMT+01:00 Bogdan-Andrei Iancu <bogdan at opensips.org>:
>>>>
>>>> OK, thank you for the update Maciej, Best regards,
>>>>
>>>> Bogdan-Andrei Iancu
>>>> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>>>>
>>>> On 15.11.2016 18:28, Maciej Bylica wrote:
>>>>
>>>> Hi Bogdan,
>>>> Thanks for reply.
>>>> Right, Opensips module was not the source of the problem.
>>>> I've managed to solve the issue, memcache is working fine.
>>>> Thanks
>>>> Maciej.
>>>> 2016-11-10 12:56 GMT+01:00 Bogdan-Andrei Iancu <bogdan at opensips.org>:
>>>>>
>>>>> Hi Maciej, As I see, you are manually compiling and installing the
>>>>> memcached stuff - any special reason for doing that ? (versus using
>>>>> packages) As the problem seems to be in the lib, not in the OpenSIPS
>>>>> module. Regards,
>>>>>
>>>>> Bogdan-Andrei Iancu
>>>>> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>>>>>
>>>>> On 09.11.2016 18:41, Maciej Bylica wrote:
>>>>>
>>>>> Hello I am struggling with memcached installation with the latest git
>>>>> opensips 2.2.2 and centos 6.8 Here are version releases i am using:
>>>>> libmemcached-1.0.18 (./configure, make && make install) memcached-1.4.33
>>>>> (./configure, make && make install) with LD_LIBRARY_PATH=/usr/local/lib:$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
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing listUsers at lists.opensips.orghttp://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>>
>>>>>
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