Anyway, one of these dropouts occurred while I was syncing my local Fossil repository with the online one, which caused the operation to hang. It then raised the whole question about possible corruption of a repository.
I raised this question in the Fossil mail list:
Dr Hipp also referred me to this page:
The precautions taken against any kind of corruption are very impressive.
Note, I have updated this page, added a Fossil Quick Guide, but it needs more work:
Comments:Posted on 21 Nov 2009, 7:53 by BarryK
I found five limitations in Fossil that made it awkward to host Woof. I created workarounds for four of them, but gave up on the fifth. See posts in my blog for November.