Depending on the size, I'd go for (a). IOW, I wouldn't change the
sharding to use (a), but if you have the same shard setup in that
case, it's easier.
You'd index a type field with each doc indicating the source of your
document. Then use the grouping feature to return the top N from each
of the
As mentioned in antoher post we (already) have a (Lucene-based) generic
indexing framework which allows any source/entity to provide
indexable/searchable data.
Sources may be:
pages
events
products
customers
...
As their names imply they have nothing in common ;) Never the less we'd like to
sear
