Bug #43230 SELECT ... FOR UPDATE can hang with FLUSH TABLES WITH READ LOCK indefinitely
Submitted: 26 Feb 2009 15:15 Modified: 15 May 2009 2:05
Reporter: Johan Idrén Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Locking Severity:S2 (Serious)
Version:5.0-bzr, 5.1-bzr OS:Any
Assigned to: Davi Arnaut 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: