1. Hibernate upgrade
We tried to upgrade Hibernate and Lucene to the next version, but had compile errors in the workspace. For the current version that is about to be released it seems too late. But for the next release we are allready porting the product to later JEE and Hibernate versions.
Right, we try hard to keep backwards compatibility but we take the liberty to cleanup things in mayor releases; this should be useful:
The documentation mentions that the refresh period should be longer than the copy time. We have not measured the copy time during load test. But the index is only a few KB. We wondered if a too short refresh time could cause this problem.
A few KB index should take very short to copy so that's unlikely. Could you send a full stack like the one you posted but using the non-shared configuration?
Might be useful also to check the changelogs in JIRA to explore the long list of fixes since your version.
We test only on Windows, because this is the given production environment. Is the master/slave configuration working on other environments e.g. Linux?
Yes that should work on Windows too, we have Jenkins machines on several OSs and database combinations (windows included).