Hi Raffaele >1) How to measure the cacheSize of SearchIndex You can enable the logging in the DocNumberCache (org.apache.jackrabbit.core.query.lucene. DocNumberCache)
>2) Why the default value is only 1000 ? I'm currently trying with 1 milion I don't know why it is only 1000 but I think it's no problem if you increase it if you have enough RAM >3) If there is a link between the bundleCache size and the SearchIndex cache >size The bundleCache is used to cache the nodes read from the BundlePM and the cache in the SearchIndex is used to handle the uuid<->Termdocs relation Hope that helps greets claus