Hi, I am trying to use *must-exist* and *must-not-exist* semantics of optimistic concurrency provided by Solr. When doing batch updates SolrM stops indexing immediately when it encounters a conflict. It does not process subsequent records in the input list.
That is one extreme. And the other extreme is using failOnVersionConflicts=false as described in the documentation at https://lucene.apache.org/solr/guide/8_4/updating-parts-of-documents.html#optimistic-concurrency I think it internally uses *TolerantUpdateProcessorFactory*. This silently ignores and suppresses errors and the client never knows if there was any error during indexing which is not useful when using optimistic concurrency. I am wondering if there is any way to have batch updates where Solr would process the entire batch and send the list of errors in the response. I checked if such update processor is available but did not find it. If it is not possible in Solr out of the box can it be implemented as a custom update processor? Thank you. -- Sachin
