Bug #47024 server hangs on FLUSH TABLES WITH READ LOCK or UNLOCK TABLES
Submitted: 31 Aug 2009 15:31 Modified: 10 Sep 2009 12:58
Reporter: Matthias Leich Email Updates:
Status: Duplicate Impact on me:
None 
Category:MySQL Server: Locking Severity:S3 (Non-critical)
Version:5.4 OS:Any
Assigned to: Assigned Account CPU Architecture:Any
Tags: regression

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: