[Bug 1569651] Re: akonadi startup fails with unknown variable innodb_additional_mem_pool_size [Xenial 16.04]

[Rob Bruce]

I got the same error log message when starting KMail after upgrading
from Kubuntu 14.04 to 16.04. (Of course, something KMail-related getting
broken in an update isn't surprising anymore, email being bleeding-edge
and all . . . )

2017-01-08T02:29:26.960676Z 0 [ERROR] unknown variable 'innodb_additional_mem_pool_size=1M'
2017-01-08T02:29:26.960682Z 0 [ERROR] Aborting

Checking mysql-global.conf I found:

# memory pool InnoDB uses to store data dictionary information and other internal data structures (default:8M)
# Deprecated in MySQL >= 5.6.3, removed in 5.7 (works in MariaDB)
# innodb_additional_mem_pool_size=8M

Note that not only is the innodb_additial_mem_pool_size already
commented out in the existing version of the config file, its value is
8M, not the 1M in the log!

Deleting the line entirely allowed KMail to start -- so far, so good.

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https://bugs.launchpad.net/bugs/1569651

Title:
  akonadi startup fails with unknown variable
  innodb_additional_mem_pool_size [Xenial 16.04]

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