Justin Niedbala wrote:
Deleting old default messages (this may take a long time!)...Done Checking site_stats row...A database query syntax error has occurred. The last attempted database query was: " SELECT * FROM `etsite_stats` WHERE ss_row_id = '1' LIMIT 1 " from within function "do_stats_init". MySQL returned error "2006: MySQL server has gone away (dbxxx.xxxxx.xxx)"
This usually means one of:
* MySQL server process crashed or was killed/restarted while you were working
* MySQL connection was dropped due to too-large data being transferred, larger than the maximum packet size setting (this is unlikely here)
* A database administrator killed your MySQL connection manually while working with it
A timeout closing your connection during the 'deleting old messages' phase is entirely possible, especially considering that you're on shared hosting.
This should be relatively harmless, that's not a critical point in the upgrade, so the next run should have ensured you were in a consistent state.
-- brion vibber (brion @ wikimedia.org)