Melvin Davidson <melvin6925 at yahoo.com> writes:
> I have a question about logging behavior.
>
> Given that I have a master,  slave1 and a new slave2 to be subscribed.
>
> I will subscribe the new slave2 from slave1.
>
> If a lot of DML is occuring on the master, are the logs on the master (sl_log1
> & sl_log2) retained until slave2 has completed subscription, or will the master
> purge/truncate it's logs as slave1 acknowledges/SYNCs the changes?

The logs are held until receipt of the data has been confirmed (table
sl_confirm) by *all* nodes in the cluster.

So sl_log_1 and sl_log_2 data will hold up until the subscription has
completed, and the new node has confirmed that it has received all that
data.

We were careful about that :-).
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Christopher Browne
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