[HyperDB] Replication Lag Detection
Brian Layman
bulk at thecodecave.com
Wed Jul 20 16:42:50 UTC 2011
On 7/20/2011 12:18 PM, Barry Abrahamson wrote:
> No real object caching - we are only using the cache to store the
> states (lagged or not lagged) for the various servers because we don't
> want to query the lagged state before every query.
Ah, ok I was confused by "In case replication breaks on all slaves, we
would rather return old data then overload the master with read queries
and cause an outage." and I thought that meant it returned cached data,
but you simply mean you then query an existing slave even though it is
lagged, right?
> Someone else needs to use it successfully in production before we make a point release :)
I'll see what I can do. One client will likely say no, another might
say maybe.
--
*Brian Layman *
Founder and Developer
brian at ehermitsInc.com <mailto:brian at ehermitsInc.com>
twitter: @brianlayman
*eHermits Inc.*
http://eHermitsInc.com <http://ehermitsinc.com/>
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