[SR-Users] MTREE reload question
Daniel-Constantin Mierla
miconda at gmail.com
Tue Sep 11 08:27:09 CEST 2012
Hello,
On 9/10/12 2:27 PM, Uri Shacked wrote:
> thanks a lot.
> so as i undestand, the real_used_size is the right value to calculate
> size. but, it grows because of fragmentation data.
> in the core, what does it mean "It is effective if MEM_JOIN_FREE
> compile option is defined"
> is there something else i need to do except adding to the cfg the
> mem_join=1 ?
no, iirc MEM_JOIN_FREE is enabled by default -- this is an option to
turn the feature off at compile time. Let us know if the number of
fragments is lower.
Cheers,
Daniel
>
> On Mon, Sep 10, 2012 at 2:39 PM, Daniel-Constantin Mierla
> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>
> Hello,
>
>
> On 9/10/12 1:14 PM, Uri Shacked wrote:
>>
>> Thanks,
>>
>> The stuff i sent is from my test server that has 3.3.1 installed.
>>
>> On my prod servers i use 3.2.x.
>>
>> how would you explain that when kamailio starts (on prod with
>> similar data and same cfg) it take around 20% of the shmem, after
>> reload 30% and in time (6-8 weeks) it gets up to 39% ?
>>
>
> if used_size does not have variations, then it is no leak. The
> variations of real_used_size is from fragmentation management --
> each fragment has a structure associated to it.
>
> Cheers,
> Daniel
>
>
>> I start with 4G of shmem.
>>
>> It feels like a leak but i have trouble investigating it....
>> where would you look? The reload, the dialog or the avp's?
>>
>> BR,
>>
>> Uri
>>
>>
>>
>> On Mon, Sep 10, 2012 at 11:06 AM, Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>>
>> Hello,
>>
>> the used size is pretty much the same after the reload, so
>> doesn't look as leak. If you do 2-3 reloads is
>> shmem:used_size staying around same value?
>>
>> It is clear boost in the fragments, I would say that after
>> start the number of fragments is quite low, because it should
>> contain the good records in memory as well.
>>
>> Btw, the version 3.3.x has options for defragmentation, see
>> the core cookbook, you can enable it.
>>
>> Cheers,
>> Daniel
>>
>>
>>
>> On 9/9/12 10:18 AM, Uri Shacked wrote:
>>> Hi,
>>> here is the statistics after kamailio starts:
>>> shmem:fragments = 28
>>> shmem:free_size = 3800871312
>>> shmem:max_used_size = 494132368
>>> shmem:real_used_size = 494095984
>>> shmem:total_size = 4294967296
>>> shmem:used_size = 342642072
>>> here it is after reload of the num table:
>>> shmem:fragments = 9161531
>>> shmem:free_size = 3654274496
>>> shmem:max_used_size = 959885552
>>> shmem:real_used_size = 640692800
>>> shmem:total_size = 4294967296
>>> shmem:used_size = 342654552
>>> here is the cfg part for mtree:
>>> #------- mtree params -------------
>>> modparam("mtree", "db_url", CFGDB)
>>> modparam("mtree", "mtree",
>>> "name=odr;dbtable=service_odr_view;type=0;")
>>> modparam("mtree", "mtree",
>>> "name=oper;dbtable=service_oper_type;type=0;")
>>> modparam("mtree", "mtree",
>>> "name=permis;dbtable=service_permisions_to_oper;type=0;")
>>> modparam("mtree", "mtree",
>>> "name=num;dbtable=service_numbers_to_areas_view;type=0;")
>>> modparam("mtree", "char_list", "0123456789")
>>> modparam("mtree", "pv_value", "$avp(mtval)")
>>> modparam("mtree", "pv_values", "$avp(mtvals)")
>>> here is the number of raws from the DB:
>>> SELECT count(*) FROM
>>> `service`.`service_numbers_to_areas_view` = 4195528
>>> and attached is the memory log.
>>> thanks,
>>> Uri
>>>
>>> On Fri, Sep 7, 2012 at 10:26 AM, Daniel-Constantin Mierla
>>> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>>>
>>> Hello,
>>>
>>> is this taken only after startup? Get one at startup and
>>> another one after reload, so it can be compared.
>>>
>>> Cheers,
>>> Daniel
>>>
>>>
>>> On 9/6/12 9:22 AM, Uri Shacked wrote:
>>>> Hi,
>>>> here:
>>>> shmem:fragments = 143898
>>>> shmem:freesize = 3446570952
>>>> shmem:max_used_size = 861854768
>>>> shmem:real_used_size = 848396344
>>>> shmem:total_size = 4294967296
>>>> shmem:used_size = 319676976
>>>>
>>>>
>>>> On Thu, Sep 6, 2012 at 9:49 AM, Daniel-Constantin
>>>> Mierla <miconda at gmail.com <mailto:miconda at gmail.com>>
>>>> wrote:
>>>>
>>>> Hello,
>>>>
>>>>
>>>> On 9/5/12 3:06 PM, Uri Shacked wrote:
>>>>
>>>> Hi,
>>>> I use MTREE to load 5 million rows from the
>>>> database. it takes about 30 sec to start
>>>> kamailio and it is running great.
>>>> Whern I check the shmem usage I see the data
>>>> take about 0.8G out of 4G i set on shmem.
>>>> When i reload the data while kamailio is
>>>> running, the memory usage rises to 1.3G and
>>>> stays there (the second and next reloads stays
>>>> on 1.3G as well).
>>>> Why doesn't it return to 0.8G after the reload
>>>> is completed?
>>>>
>>>>
>>>> can you send the statistics related to shmem?
>>>>
>>>> kamctl fifo get_statistics shmem:
>>>>
>>>> There are different values there, some usage come
>>>> from overhead of memory chunks management.
>>>>
>>>> Cheers,
>>>> Daniel
>>>>
>>>> --
>>>> Daniel-Constantin Mierla - http://www.asipto.com
>>>> http://twitter.com/#!/miconda
>>>> <http://twitter.com/#%21/miconda> -
>>>> http://www.linkedin.com/in/miconda
>>>> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 -
>>>> http://asipto.com/u/kat
>>>> Kamailio Advanced Training, Miami, USA, Nov 12-14,
>>>> 2012 - http://asipto.com/u/katu
>>>>
>>>>
>>>
>>> --
>>> Daniel-Constantin Mierla -http://www.asipto.com
>>> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -http://www.linkedin.com/in/miconda
>>> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 -http://asipto.com/u/kat
>>> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 -http://asipto.com/u/katu
>>>
>>>
>>>
>>
>> --
>> Daniel-Constantin Mierla -http://www.asipto.com
>> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -http://www.linkedin.com/in/miconda
>> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 -http://asipto.com/u/kat
>> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 -http://asipto.com/u/katu
>>
>>
>
> --
> Daniel-Constantin Mierla -http://www.asipto.com
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -http://www.linkedin.com/in/miconda
> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 -http://asipto.com/u/kat
> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 -http://asipto.com/u/katu
>
>
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu
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