Re: [Quickfix-developers] QuickFIX store and log DB down

[Oren M. <or...@qu...>]

The repository changes this.  Now quickfix return false on send if  
the store is unavailable.

--oren

On Jun 20, 2007, at 1:51 PM, Djalma Rosa dos Santos Filho wrote:

> QuickFIX Documentation: http://www.quickfixengine.org/quickfix/doc/ 
> html/index.html
> QuickFIX Support: http://www.quickfixengine.org/services.html
>
> Hi Benny,
>
> Following is my opinion:
>
> I don't believe that the logging unavailability should be a reason to
> reject a message, although this is a problem that I would like to be
> able to detect and correct it at my side asap.
>
> Anyway, some weeks ago when I was debugging a specific application
> error, I also found that the errors in underlying database are simply
> hidden from the application, like for example undesired schema
> modifications, connection failures etc.
>
> I thought about an alert mechanism for monitoring, some kind of
> callback function or an external file to log errors in logging class
> (MySQLLog e.g.). This way, it would become easier to detect errors and
> have a recovery mechanism in the application for logging and store.
>
> Following was the issue I opened with a feature request.
> http://www.quickfixengine.org/bugtracker/bug.php?op=show&bugid=255
>
> I figure out that the problem is worse if the Store is down,
> SendToTarget will return false, although the message might have been
> sent.  But, with no warranty at all, since retransmission won't be
> possible in this situation.
>
> I belive that currently QF has a very optimistic aproach for the
> problems we're concerned about.
>
> Djalma
>
> On 6/20/07, bennyzlm <ben...@ho...> wrote:
>> QuickFIX Documentation: http://www.quickfixengine.org/quickfix/doc/ 
>> html/index.html
>> QuickFIX Support: http://www.quickfixengine.org/services.html
>>
>>
>> Hi,
>>
>> Currently I am focusing on recovery if some component in the  
>> system down.
>> More specificly, if I use MySQL to be the store and log  
>> destination for
>> quickfix, what will the quickfix engine response to the messaged  
>> received
>> during MySQL is down? I did some experiments and it seems quickfix  
>> throws
>> some SQL exception but do not response any reject message. Is  
>> there any way
>> in quickfix to response the other side that it is down, or reject  
>> to any
>> action taken by the other side? Thanks for any help!
>>
>> Regards,
>> Benny
>> --
>> View this message in context: http://www.nabble.com/QuickFIX-store- 
>> and-log-DB-down-tf3950636.html#a11208236
>> Sent from the QuickFIX - Dev mailing list archive at Nabble.com.
>>
>>
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