Unfortunately, the problem is not more specific than that. I’ve found a few examples of people reporting similar problems by doing a Google search, but I can’t find the part of the restore that is actually causing the problem, which might help me track it down on my own.
Suggestions for either resolving this problem or being able to track down the root cause would be appreciated.
There’s one bug logged at bugs.mysql.com that references the error you describe:
‘Bug #37253 Unable to restore backup file containing BLOBs‘
The solution described in that bug is to increase the
max_allowed_packetin the MySQL server configuration. The user confirmed that raising the value to 100M allowed him to restore his database.