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:
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 3MB.

If the data you need to attach is more than 3MB, you should create a compressed archive of the data and a README file that describes the data with a filename that includes the bug number (recommended filename: mysql-bug-data-63815.zip) and upload one to sftp.oracle.com. A free Oracle Web (SSO) account (the one you use to login bugs.mysql.com) and a client that supports SFTP are required in order to access the SFTP server.

To upload the file to sftp.oracle.com:

  1. Open an SFTP client and connect to sftp.oracle.com. Specify port 2021 and remote directory /support/incoming/.
  2. Log in with your newly created Oracle Web account (email address) and password.
  3. Upload the archive to /support/incoming.
  4. Once you have uploaded the file, add a comment to this bug to notify us about it.
Example: sftp -oPort=2021 -oUser=email sftp.oracle.com:/support/incoming

Usage Notes: This directory is unlistable, which means that once you have uploaded your file, you will not be able to see it. A file cannot be uploaded more than once with the same filename. The filename must be changed before attempting to upload the file again. The filename should always start with mysql-bug- prefix. Files are retained on the SFTP server for 7 days and then permanently removed.

[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.