maria-discuss team mailing list archive

[Guillaume Lefranc <guillaume.lefranc@xxxxxxxxxxx>]

Hello Erik,

I'm not sure if that would work for you, but you could create a log of
specific modifications on a table using MaxScale and the QLA Filter using
regexes.

https://github.com/mariadb-corporation/MaxScale/blob/develop/Documentation/Filters/Query-Log-All-Filter.md

Then just monitor the log file for changes.

Regards,

On Wed, Apr 13, 2016 at 11:27 AM Erik Cederstrand <erik@xxxxxxxxxxxxxx>
wrote:

> Hello Rhys,
>
> Thanks for your suggestions!
>
> > Den 13. apr. 2016 kl. 09.48 skrev Rhys.Campbell@xxxxxxxxxxxx:
> >
> > Triggers?
>
> You mean create a custom logging table in the customer database? I guess I
> could do something like this on each table:
>
>   CREATE TRIGGER insert_event AFTER INSERT ON t1 FOR EACH ROW INSERT INTO
> event_log SET table_name = 't1', count=1 ON DUPLICATE KEY UPDATE count =
> count + 1;
>
> > Monitor the binlog, as you state, might be a goer.
>
> Yes, but I'd like to know which schema and table changed, not just that
> *something* changed somewhere on the server. Otherwise I have too much work
> to do.
>
> > You could enable the performance schema and monitor queries there?
>
> I tried to enable the performance_schema. Any pointers to where I should
> look? Poking around, my best bet right now would be:
>
>    SELECT object_schema, object_name, sum_timer_write_allow_write FROM
> table_lock_waits_summary_by_table WHERE object_schema='test' AND
> object_name='t1';
>
> > If you cannot change the source database at all how about an additional
> slave that you can change? I think I'd go for this option.
>
> I could try that.
>
> Erik
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-- 
Guillaume Lefranc
Remote DBA Services Manager
MariaDB Corporation