Hello,
Solr 5.4.1 I have two collections ‘Online’ and ‘Offline’ both collections have an implicit router and are sharded into weekly cores (for example an online shard would be Online_20170605). I have created an alias to query both collections called ‘AllData’. I want to query the alias but specify the shards. So something like this: http://localhost:8983/solr/AllData/select?q=*%3A*&sort=Session_UTCStartTime+desc&wt=json&indent=true&shards=Online_20170605,Offline_20170529 However I have noticed that this doesn’t work. If I create the alias like this : http://localhost:8983/solr/admin/collections?action=CREATEALIAS&name=AllData&collections=Online,Offline (with the Online collection mentioned first) I can use Online_20170605 as a shard but not the Offline shard, for that I would have to specify the location of the shard. http://localhost:8983/solr/AllData/select?q=*%3A*&sort=Session_UTCStartTime+desc&wt=json&indent=true&shards=Online_20170605,localhost:8983/solr/offline If I delete the alias and recreate it with the Offline collection mentioned first: http://localhost:8983/solr/admin/collections?action=CREATEALIAS&name=AllData&collections=Offline,Online I can use the Offline_20170529 as a shard but then have to specify the location of the shard for the online collection. http://localhost:8983/solr/AllData/select?q=*%3A*&sort=Session_UTCStartTime+desc&wt=json&indent=true&shards=localhost:8984/solr/online,<http://localhost:8983/solr/AllData/select?q=*%3A*&sort=Session_UTCStartTime+desc&wt=json&indent=true&shards=Online_20170605,Offline_20170529>Offline_20170529 Is this expected behaviour? Or can anyone point out what I’m doing wrong? Many thanks Philippa