Thanks Dave.
It has been running fine all day. A few hundred posts were made.
The server appeared to crash about an hour ago.
I got corruption on a number of databases.
I asked my server admins to sort it.
They ran a fix - although this was not a full command that I recognise - it had --fast in it, and one other suffix.
After this the MySQL errors went away, but then I got this on very post.
