Bug #70034 version information mismatch in README-innodb_memcached
Submitted: 14 Aug 2013 13:01 Modified: 18 Nov 2013 15:06
Reporter: Hartmut Holzgraefe Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Memcached Severity:S3 (Non-critical)
Version:mysql-5.6.13 OS:Any
Assigned to: CPU Architecture:Any

[14 Aug 2013 13:01] Hartmut Holzgraefe
Description:
plugin/innodb_memcached/README-innodb_memcached says

  1) Build MySQL server. Please note libevent 1.6.0 is linked statically into daemon memcached.

according to libevent/configure.in the bundled version is 1.4.12 though, not 1.6.0:

  AM_INIT_AUTOMAKE(libevent,1.4.12-stable)

(maybe the 1.6.0 actually refers to the bundled memcached source, not the libevent one?)

How to repeat:
check information in source files

Suggested fix:
correct information in README-innodb_memcached
[14 Aug 2013 13:51] Hartmut Holzgraefe
see http://bazaar.launchpad.net/~mysql/mysql-server/5.6/revision/2876.423.44#plugin/innodb_mem...

- 1) Build MySQL server. Please note libevent 1.4.3 is linked statically into daemon memcached.
+ 1) Build MySQL server. Please note libevent 1.6.0 is linked statically into daemon memcached.

As there was never a 1.6 release series of libevent, only 1.4 and then 2.0, 1.6.0 can't be correct
[17 Aug 2013 9:49] MySQL Verification Team
Hello Hartmut,

Thank you for the bug report. 
Verified as described.

Thanks,
Umesh
[18 Nov 2013 15:06] Daniel Price
Fixed as of 5.6.16 and 5.7.4. Noted in 5.6.16 and 5.7.4 changelogs:

The "InnoDB" "memcached" Readme file ("README-innodb_memcached")
incorrectly stated that libevent 1.6.0 is linked statically into daemon
"memcached". The bundled version of libevent is 1.4.12, not 1.6.0.

Thank you for the bug report.