Bug #89693 improve logging during --initialize
Submitted: 16 Feb 2018 11:43 Modified: 23 Mar 2018 17:54
Reporter: Terje Røsten Email Updates:
Status: Closed Impact on me:
Category:MySQL Server: Logging Severity:S3 (Non-critical)
Version:8.0.5 OS:Any
Assigned to: CPU Architecture:Any

[16 Feb 2018 11:43] Terje Røsten
Default logging when running mysqld --initialize is:

--- start log ---

[System] [MY-010116] /export/work/mysql-trunk-clean/b/runtime_output_directory/mysqld (mysqld 8.0.6-tr) starting as process 22151 ...
[Warning] [MY-010068] CA certificate ca.pem is self signed.
[Note] [MY-010454] A temporary password is generated for root@localhost: U*pEb-Qk-6pI

---end log ---

There are several problems here:

a)  there is indication this is --initialize mode and not a normal startup
Suggested fix:


[System] [MY-010116] /export/work/mysql-trunk-clean/b/runtime_output_directory/mysqld (mysqld 8.0.6-tr) starting as process 22151 ...

[System] [MY-010116] /export/work/mysql-trunk-clean/b/runtime_output_directory/mysqld (mysqld 8.0.6-tr) initializing of server in progress as process 22151 

b) Message about self signed ca.pem is just spam in this context.
Suggested fix:suppress this messages when in --initialize mode.

c) There is no shutdown message present, user don't know when initialize progress is done.
Suggested fix: add 

[System] [MY-0XXXX] /export/work/mysql-trunk-clean/b/runtime_output_directory/mysqld (mysqld 8.0.6-tr) initializing of server done.

at last message to error log when shutdown after initialize is done.

How to repeat:
Build server as normal and run:

$ bin/mysqld --no-defaults --datadir=/tmp/a -I

watch message on standard out.

Suggested fix:
See Description.
[23 Mar 2018 17:54] Paul DuBois
Posted by developer:
Fixed in 8.0.12.

Logging during data directory initialization (for example, using
mysqld --initialize) has changed:

* The startup message indicates that the server is running in
  initialization mode.

* A message is written indicating when initialization has completed.

* The message about the CA certificate being self-signed is suppressed.
[3 Apr 2018 13:38] Paul DuBois
Fixed in 8.0.11, not 8.0.12.