You can use SearcherLifetimeManager to keep track of specific IndexSearcher instances - see Mike’s blog at http://blog.mikemccandless.com/2011/11/searcherlifetimemanager-prevents-broken.html <http://blog.mikemccandless.com/2011/11/searcherlifetimemanager-prevents-broken.html>
Alan Woodward www.flax.co.uk > On 17 Nov 2017, at 08:30, ivan cruces <ivan.cru...@object-matrix.com> wrote: > > Hi, > > I have implemented pagination with Lucene using the searchAfter method > provided by IndexSearcher. In every call, I pass the last ScoreDoc returned > in the previous page. > > The problem is that sometimes, the index gets updated between page and page > and occasionally I am getting this exception: > > java.lang.IllegalArgumentException: after.doc exceeds the number of > documents in the reader: after.doc=337 limit=337 > at > org.apache.lucene.search.IndexSearcher.searchAfter(IndexSearcher.java:434) > > I understand that Lucene changes the docs ids every now and then (segment > merges, etc.) and I guess that is why that exception is happening as > searchAfter relies on those docs ids. > > How could I improve this pagination mechanism to avoid this exception? Is > there any better way to implement pagination with Lucene? > > > Thanks, > > Iván.
