On 10/31/2017 4:57 PM, Nawab Zada Asad Iqbal wrote:
I hit this issue https://issues.apache.org/jira/browse/SOLR-11504 while migrating to solr6 and locally working around it in Lucene code. I am thinking to fix it properly and hopefully patch back to Solr. Since, Lucene code does not want to keep any such config, I am thinking to use a counting semaphore in Solr code before calling IndexWriter.addDocument(s) or IndexWriter.updateDocument(s).
There's a fairly simple way to control the number of indexing threads that doesn't require ANY changes to Solr: Don't start as many threads/processes on your indexing client(s). If you control the number of simultaneous requests sent to Solr, then Solr won't start as many indexing threads. That kind of control over your indexing system is something that's always preferable to have.
Thanks, Shawn
