Re: Using multiple rerankers in Solr

2024-02-15 Thread Doug Turnbull
On (1) I'm mistaken, its still only reranking whatever the reRankDocs param is On Thu, Feb 15, 2024 at 9:38 PM Doug Turnbull wrote: > Just curious if anyone has had success combining multiple rerankers in > Solr. At least one of which uses the LTR query. > > 1. I can issue an LTR query and score

Using multiple rerankers in Solr

2024-02-15 Thread Doug Turnbull
Just curious if anyone has had success combining multiple rerankers in Solr. At least one of which uses the LTR query. 1. I can issue an LTR query and score the entire corpus with an LTR model q={!ltr ...} 2. I can naturally use LTR in rq itself rq={!ltr...} and do one rerank pass, entirely in LTR

Re: Block MAX WAND feature use

2024-02-15 Thread Tomás Fernández Löbbe
One thing you can use to influence ranking while still allowing the optimization is to use Rank Fields[1]. Multiple field queries should be OK, but I don't remember off the top of my head if DisMax queries work, I believe they do, but I don't know why you wouldn't be seeing an improvement. [1] ht

Re: Block MAX WAND feature use

2024-02-15 Thread Mikhail Khludnev
Don't know exactly. It might be sum, product or any other combination func. Another thought: MinExactCount optimization always brings top score just skipping weaker matches. But if you introduce rescoring after extracting BM25 top hits, it loses precision: Think about a top rating doc, which has fe

Marking replicas down at startup and waiting does not wait SOLR-17049

2024-02-15 Thread rajani m
Hi Solr Users, Any alternatives to the bug reported on SOLR-17049 ? When solr is restarted it seems like the replicas are active sooner than the core reload is complete. ZK, unaware of the core reload, starts sending requests to those replicas and hence queries during this period have high late

Re: Block MAX WAND feature use

2024-02-15 Thread rajani m
If the boosts are multiple function queries such as the following[1] then the boost query would be a sum function surrounding them, is it? I missed that one. [1] "sum(product(popularity,2),1.0)" and "recip(ms(NOW/HOUR,date),3.163e-11,1,1)" I will post the question on the dev channel regarding wh

Configuring mergeScheduler for SolrCloud

2024-02-15 Thread 6harat
Hi, We have a solr cloud setup (tlog + pull - v8.2) which is currently showing a large amount of CPU being used by Lucene Merge Thread pool which are spawned by ConcurrentMergeScheduler. As a result of this, our writes have considerably slowed down. We were looking to fine tune that config basis