Ok, that sounds like a bug. I can create a ticket for this. On Mon, Jul 1, 2019 at 5:57 PM Pratik Patel <pra...@semandex.net> wrote:
> I think the problem was that my streaming expression was always returning > just one node. When I added more data so that I can have more than one > node, I started seeing the result. > > On Mon, Jul 1, 2019 at 11:21 AM Pratik Patel <pra...@semandex.net> wrote: > >> Hello Everyone, >> >> I am trying to execute following streaming expression with "scoreNodes" >> function in it. This is taken from the documentation. >> >> scoreNodes(top(n="50", >> sort="count(*) desc", >> nodes(baskets, >> random(baskets, q="productID:ABC", >> fl="basketID", rows="500"), >> walk="basketID->basketID", >> fq="-productID:ABC", >> gather="productID", >> count(*)))) >> >> I have ensured that I have the collection and data present for it. >> Upon executing this, I am getting an error message as follows. >> >> "No collection param specified on request and no default collection has >> been set: []" >> >> Upon digging into the source code I found that there is a possible bug in >> ScoreNodesStream.java >> >> StringBuilder instance is never appended any string and the block which >> initializes collection, needs the length of that instance to be more than >> zero. This condition will always be false and hence the collection will >> never be set. >> >> I checked this file in solr version 8.1 and that also has the same issue. >> Is there any JIRA open for this or any patch available? >> >> [image: image.png] >> >> Thanks, >> Pratik >> >
