Is it possible to enable an aggregator on all column families, even those created dynamically? How might one go about configuring this?

Aaron

I don't think this is exactly what you are looking for, but you could
use the addAggregators(String tableName, List<? extends
PerColumnIteratorConfig> aggregators) method in the TableOperations
interface to dynamically set the aggregator on new column families
that are created. Obviously this would require some work to keep track
of what column families already exist, but I haven't seen anything in
the API that would let you configure an aggregator for all column
families in a table.

On Wed, Dec 28, 2011 at 8:32 AM, Aaron Cordova <[EMAIL PROTECTED]> wrote:
> Is it possible to enable an aggregator on all column families, even those created dynamically? How might one go about configuring this?
>
> Aaron

On Wednesday, December 28, 2011 10:32:15 AM, "Aaron Cordova" <[EMAIL PROTECTED]> wrote:
> Is it possible to enable an aggregator on all column families, even
> those created dynamically? How might one go about configuring this?

No, that is not possible with the existing implementation.  I've considered adding a flag indicating "all columns" to Combiners (the new style of aggregators in 1.4), but haven't implemented it yet.  There might be time to sneak it into 1.4 if people want it.  Feel free to open a ticket.

Billie

Thanks all. I don't know if it makes sense or not to add such a thing.

On Dec 28, 2011, at 3:55 PM, Billie J Rinaldi wrote:

> On Wednesday, December 28, 2011 10:32:15 AM, "Aaron Cordova" <[EMAIL PROTECTED]> wrote:
>> Is it possible to enable an aggregator on all column families, even
>> those created dynamically? How might one go about configuring this?
>
> No, that is not possible with the existing implementation.  I've considered adding a flag indicating "all columns" to Combiners (the new style of aggregators in 1.4), but haven't implemented it yet.  There might be time to sneak it into 1.4 if people want it.  Feel free to open a ticket.
>
> Billie