[rt-users] sessions table is lost after a system crash

Ruslan Zakirov ruslan.zakirov at gmail.com
Fri Apr 24 07:06:16 EDT 2009


On Fri, Apr 24, 2009 at 1:23 AM, Tim Cutts <tjrc at sanger.ac.uk> wrote:
>
> On 23 Apr 2009, at 6:54 pm, Tom Lahti wrote:
>
>> Kenneth Marshall wrote:
>>> Tim,
>>>
>>> I am curious. Are you using InnoDB tables or MyISAM tables?
>>> I thought that RT needed InnoDB. Does it have a problem with
>>> system crashes and recovery with InnoDB?
>>>
>>> Just wondering.
>>> Ken
>>
>> I was just about to say the same thing when this came in.  I think
>> you want
>> InnoDB tables, not MyISAM.  In particular, large tables like the
>> attachment
>> table will have problems, and frequently updated tables like the
>> session
>> table will have crash recovery issues.  The crash recovery in the
>> InnoDB
>> backend is more robust, as is the indexing methodology.
>
> Preaching to the choir.  In a default RT installation on MySQL, all
> the tables are InnoDB *except* for the sessions table.  I don't know
> why that particular table is MyISAM, and I don't know whether there
> would be any consequences of converting it.

No consequences, it's just legacy.

>
> Tim
>
>
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-- 
Best regards, Ruslan.



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