The nightly builds are taking 4-7 hours.
This is caused by a few bad apples (can be seen https://builds.apache.org/job/Lucene-trunk/1896/testReport/).
The top 5 are (all in analysis):
- TestSynonymMapFilter: 1 hr 54 min
- TestRandomChains: 1 hr 22 min
- TestRemoveDuplicatesTokenFilter: 32 min
- TestMappingCharFilter: 28 min
- TestWordDelimiterFilter: 22 min
so thats 4.5 hours right there for that run....