Bug #63815 Reorganization May Make a Page Incompressible
Submitted: 21 Dec 2011 2:51 Modified: 18 Oct 2012 22:06
Reporter: Nizameddin Ordulu Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: InnoDB Plugin storage engine Severity:S1 (Critical)
Version: OS:Any
Assigned to: CPU Architecture:Any
Tags: btr_cur_optimistic_update, btr_cur_update_alloc_zip, compression, innodb

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:

[26 Dec 2011 1:06] Nizameddin Ordulu
make page_zip_compress() return FALSE randomly.

Attachment: simulate_comp_failures.patch (application/octet-stream, text), 9.62 KiB.

[26 Dec 2011 3:16] Nizameddin Ordulu
fix the bugs

Attachment: 63815.patch (application/octet-stream, text), 2.40 KiB.