Bug #51710 FLUSH TABLES <view> WITH READ LOCK kills the server.
Submitted: 4 Mar 2010 8:17 Modified: 14 Mar 2010 0:42
Reporter: Alexey Botchkov Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Locking Severity:S1 (Critical)
Version:5.5.99-m3 OS:Any
Assigned to: Konstantin Osipov CPU Architecture:Any

File: Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file: