: Yes we are using Solr for a non-traditional search purpose and the : performance is critical. However it sounds like that sharing the same index : could slow down reading / writing to the index. And access synchronization : is tricky as well.
no matter how you use Solr (HTTP or Embedded) only one SOlrCore can be writting to an index at a time. : Therefore, we might have to use a single web based Solr instance or use : multiple embedded Solr instances and setup the script based replication. not clear if this is what you mena: but you can always have a single solr "master" (which might be embedded or it might be the war) and then use script replication or shared disk to make that index available for numerous additional solr instance (again: either embedded or war based) for queries. -Hoss
