Stefan4solr commented on PR #151:
URL: https://github.com/apache/solr/pull/151#issuecomment-1274516075

   We're also affected by this bug and first of all we're wondering: Is anyone 
still working on these PRs?
   
   Furthermore while the Solution proposed in the PRs 151/171 also covers many 
corner cases and e.g. uneven distributions of re-ranked docs across the shards, 
we were thinking about deploying a temporary, simpler fix for our local 
installation, perhaps a variant of what @dsmiley mentioned in his last comment: 
To adjust the scores of all re-ranked documents locally in the shards to make 
them larger than the largest original score of the documents before re-ranking. 
There is still be the possibility that the original scores differ per shard, 
but since we also accept that for normal ranking (except for distributed IDF 
via global statsCache), we figured we could ignore that. We would also accept 
that the scores of all re-ranked docs are always better than the highest 
non-reranked score, and we'd set reRankDocs to be our intended total number 
divided by the actual numbers of shards we're using. However (not being a Solr 
expert), is there something obvious I'm missing here?


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