Hi there, This is about undocumented restrictions about using streaming expressions (in the sense that I haven't found the right documentation).
** Setup I just followed the documentation to start SolrCloud on my local machine, and I made it so it would replace the previous standalone server I have been using for the last several years. Had some trouble understanding how to use my current solrconfig and schema, but I got it working and I could index all the documents without any trouble. After indexing both collections, the Admin > Cloud > Nodes reports the expected number of documents in each. _Before I go into too many details, it may be useful to include a warning in the chapter called "the well-configured Solr instance" so that new users are aware that streaming expressions won't work in standalone mode. I know it is explained elsewhere, but that page would be a good fit for such a warning: SolrCloud is not only about scaling, as the page would suggest._ ** The issue Now, about my question: I went the SolrCloud route because I wanted to try streaming expressions and eventually the classifiers. To that end, I loaded the web admin in Firefox, went to the right collection, then Stream, and pasted the adapted examples. I have been trying the query examples from this page: https://lucene.apache.org/solr/guide/7_5/stream-source-reference.html A couple things worth mentioning about the admin UI: - the URL that is presented doesn't work: - http://127.0.0.1:8983products/stream?explain=true&expr=search(products,q=*:*,fl="ref,createdAt", sort="createdAt desc",qt="catalogFr") - it is missing part of the path, in my case it should start with http://127.0.0.1:8983/solr/products/stream - that box's UI could be improved by making the URL clickable or at least selectable - the output misses a lot of metadata, as I can't see much of the "explanation" that is available when requesting the actual URL Most notably, I was only able to get a response from search(), significantTerms() and stats(). The other sources failed with an exception. Here is a log from features() which ends with a java.util.concurrent.ExecutionException: https://paste.linux.community/view/6676fc3c It seems that the collection is looking for the 192.168.56.1 IP and I have no idea why it would switch to another network (that Solr may not be bound to) or how to change this. At setup, I only used "localhost" so I would expect all URL to reflect this, not even 127.0.0.1. Here is another, this one about timeseries() and ends with a java.lang.NullPointerException: https://paste.linux.community/view/f62bebf6 Are there configuration considerations I haven't accounted for, like maybe field attributes that should be present and that are documented elsewhere? Best regards,
