We hada a brief outage of the server that hosts (not runs) the XML dumps earlier today. There is an issue with one of the spare disks, and when we queried the RAID controller, the system hung. The server was brought back up shortly afterwards and dumps have resumed but those that were in progress were aborted. New runs of those will be conducted in a few days when their turns come up again.
In other news, I noticed the empty mysql table dumps for en wikipedia, ran one such dump by hand, and it ran fine. Those dumps were run just after upgrade to a patched version of mysqld; I can't be sure what the particular problem was but I'm chalking it up to the transition for now. We will be keeping our eye on the issue.
Ariel Glenn
xmldatadumps-l@lists.wikimedia.org