Bug #40536 SELECT is blocked by INSERT DELAYED waiting on upgrading lock, even with low_pri
Submitted: 6 Nov 2008 0:56 Modified: 18 Feb 2009 20:16
Reporter: Matthew Montgomery Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server Severity:S3 (Non-critical)
Version:5.1.29, 5.1.23, 5.0.70 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: