Bug #69341 semi-sync replication is very slow with many clients
Submitted: 29 May 2013 0:55 Modified: 5 Jul 2013 10:13
Reporter: Yoshinori Matsunobu (OCA) Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Replication Severity:S5 (Performance)
Version:5.6.11 OS:Any
Assigned to: 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:

[4 Jun 2013 4:21] Libing Song
test performance with mysqlslap

Attachment: my_test.sh (application/x-shellscript, text), 5.40 KiB.

[4 Jun 2013 4:27] Libing Song
copy it into mysql-test/include

Attachment: install_semisync.inc (application/octet-stream, text), 1.08 KiB.

[7 Jun 2013 0:57] Libing Song
patch for the bug

Attachment: libing-bug69341.diff (text/x-patch), 1.71 KiB.