Re: Live index upgrading

2019-06-17 Thread Erick Erickson
Let’s back up a bit. What version of Lucene are you using? Starting with Lucene 8, any index that’s ever been touched by Lucene 6 will not open. It does not matter if the index has been completely rewritten. It does not matter if it’s been run through IndexUpgraderTool, which just does a forceMe

Live index upgrading

2019-06-17 Thread David Allouche
Hello, I use Lucene with PyLucene on a public-facing web application. We have a moderately large index (~24M documents, ~11GB index data), with a constant stream of new documents. I recently upgraded to PyLucene 7. When trying to test the new release of PyLucene 8, I encountered an IndexForma