[HyperDB] multi-datacenter configuration

[Beck, Joe]

thanks.
does this mean there is a single point of failure then?
if the data center with the master (write) db is inaccessible/down/whatever
or that db server is down/offline/whatever then no writes can happen?

Joe


On 6/2/10 3:15 PM, "Andy Skelton" <skeltoac at gmail.com> wrote:

>> I¹ve read that wordpress.com has 3 data centers but I believe its only using
>> master ­ slave replication.
>> if this is the case, are you just using mysql replication to keep all dbs
>> across data centers in sync?
> 
> That's right.
> 
>> And more specifically, how do you direct any writes (article posts or
>> comments submitted) to the master db to do the write?
> 
> In the HyperDB config you specify the masters by setting their "write"
> flag. See db-settings.php for details.
> 
> Andy
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