[rt-users] mysql performance problem

[Raphael Loziczky]

thx for the tip, Arran but it's currently running with mysql 5.0.22 so 
the broken query optimizer can't be the problem...

some more ideas?

thanks,
Raphael

Arran Cudbard-Bell schrieb:
> Raphael Loziczky wrote:
>> How can I enable RT debug log? mysql error log shows no errors...
>>
>> very slow means that it hangs for about 1 minute - we have our old 
>> system running with the same db which is much faster! (on old hardware)
>> the mysql dump is about 20 gigs... when I made the dump from the old 
>> system I had to use "force recovery" mode with mysql to get a working 
>> dump. maybe thats the problem?
> If your new mysql instance running mysql 5.1 ?
>
> If so the query optimizer is slightly broken, this can cause issues 
> with queries. Try with a version 5.0.
>
> Thanks,
> Arran
>>
>>
>> Ruslan Zakirov schrieb:
>>> RT debug log. mysql slow log.
>>>
>>> Very slow? How slow? Hangs forever or 1 minute? How big is your DB?
>>>
>>> On Fri, Jul 11, 2008 at 12:47 PM, Raphael Loziczky 
>>> <rl at greentube.com> wrote:
>>>  
>>>> hi,
>>>>
>>>> I fixed the issue with lighttpd and got it up and running :)
>>>>
>>>> Now for testing proposals I use lighttpd and apache.... with both
>>>> webservers I have the problem that e.g. opening a ticket is very slow
>>>> (with both webservers) and the CPU usage increases to 100% ....
>>>>
>>>> Does anyone has an idea how to fix this? Its a brand new server and i
>>>> dumped the mysql data in it...
>>>>
>>>> Thanks for any help!
>>>>
>>>> best regards,
>>>> Raphael
>>>> _______________________________________________
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>>>>
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>>>>
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>>>>     
>>>
>>>
>>>
>>>   
>>
>> -- 
>> Raphael Loziczky
>> System Administrator
>> raphael.loziczky at greentube.com
>> ----------------------------------------------
>> Greentube Internet Entertainment Solutions AG
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>> FN 197003k, HG Wien
>>
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>

-- 
Raphael Loziczky
System Administrator
raphael.loziczky at greentube.com
----------------------------------------------
Greentube Internet Entertainment Solutions AG
Mariahilfer Straße 47/1/102
A-1060 Wien
FN 197003k, HG Wien

Tel: +43 1 494 50 56 - 30
Fax: +43 1 494 50 56 - 14
http://www.greentube.com/

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