Re: bzr commit into mysql-5.1-bugteam branch (Dao-Gang.Qu:3192) Bug#42851

[Davi Arnaut]

On 11/24/09 10:13 AM, Davi Arnaut wrote:
> Hi Andrei,
>
> On 11/24/09 10:07 AM, Andrei Elkin wrote:
>> After sleeping, and sleeping on this matter I think we would agree on
>>
>> 1. Rating for the error log should be done per session
>> 2. Rating should target at duplicate messages
>
> IMHO, we should do either one, not the two. 1. should be enough.

Actually, 1 has problems too. For example, in cases where there is a 
exceptional condition and a storage engine wants to dump a lot of 
information to the error log in a short period of time. This might 
inadvertently trigger rate limiting. 2 problems of its own too if we 
want to detect duplicate messages within a time interval.

This is proving to be quite controversial for something that should be 
kept simple. Perhaps we should stick with what syslog does: eliminate 
subsequent duplicated messages. We track those by using a checksum on 
the message format. What do you guys thing?

Regards,

--
Davi Atnaut