Looking at the log I see that it successful completed indexing each book:
2014-12-29 07:09:04.7084 88 Info WindowsIndexerProgress 8,508 of 8,508 resources indexed; current phase progress is 58.6%
2014-12-29 07:09:04.7614 88 Info LibraryIndex (19m 45.8s) Indexing LLS:1.0.301
2014-12-29 07:09:04.7714 88 Info LibraryIndex No more resources to index; stopping thread.
2014-12-29 07:09:04.7844 84 Info LibraryIndex Finished indexing resources (in 10h 56m 26s); writing postings.
That now almost 10 hours ago, since then it has been logging the following entries periodically:
16:44:03.0077 6 Info SQLite Profile 511ms in Updates.db for: select UpdateId, Source, SourceVersion, Title, Type, Status, Size, CreatedDate, InstalledDate,
[' from Updates where Status in (2, 3, 4);
The only thing that varies is the time in ms being recorded.
Can anyone provide insight as to what is happening