Problems encountered in local deployment conflict: MySQL database code, isolation level and verification code are not displayed

background

Local deployment Confluence when , requirement ：

1. Database code is utf8-bin.
2. Isolation level required is READ-COMMITTED.

Besides , Use Confluence We also encountered the problem that the verification code is not displayed on the page .

Set the database as required

The official download MySQL5.7 ：https://downloads.mysql.com/archives/community/

• First, check the current isolation level ：

Check the system isolation level ：select @@global.tx_isolation;
View session isolation level (5.0 Above version )：select @@tx_isolation;
View session isolation level (8.0 Above version )：select @@transaction_isolation;

--  You can see that the default isolation level of the current database is repeatable 
select @@global.tx_isolation;
REPEATABLE-READ

Next , according to Confluence requirement , Set up MySQL The global transaction isolation level of the database is READ-COMMITTED

set global transaction isolation level read committed;

• Set the session isolation level

set session transaction isolation level repeatable read;  Set the session isolation level to repeatable 
set session transaction isolation level read uncommitted;  Set the session isolation level to read uncommitted 
set session transaction isolation level read committed;  Set the session isolation level to read committed 

• Check the modified level again

select @@global.tx_isolation;
READ-COMMITTED

Solve the initialization database error

You do not have the SUPER privilege and binary logging is enabled (you might want to use the less safe log_bin_trust_function_creators variable)

solve ： Set up log_bin_trust_function_creators=1 .

set global log_bin_trust_function_creators=1;
show variables LIKE "%trust%"

The above setting method is temporary , When the database service is restarted or the host is restarted, the configuration fails .
The following configurations are available my.ini perhaps my.cnf Make configuration permanent .

transaction-isolation=READ-COMMITTED
log_bin_trust_function_creators=1

Handle the problem that the verification code is not displayed

When you input the wrong number several times, you need to enter the verification code , But Confluence The verification code of does not come out , No display .

Reference resources ：https://www.cnblogs.com/wgy1/p/9796176.html

• look for Confluence Service name of （ It is useful for modifying the encoding format later ）：

Control panel -》 Management tools -》 service – Altassian Confluence -> attribute -> routine -> The service name

• Modify the file encoding format ：
  cmd.exe Get into Confluence/bin Under the folder Enter the command ：tomcat9w //ES//Confluence**********

C:\Program Files\Atlassian\Confluence\bin>tomcat9w.exe //ES//Atlassian Confluence Confluence110522105657
C:\Program Files\Atlassian\Confluence\bin>tomcat9w.exe //ES//Confluence110522105657

• In the input box that pops up Java Next Java Options: Add below -Dfile.encoding = UTF-8

• restart service In the list Confluence.

• Log in again , The verification code shows .

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If you have any questions or any bugs are found, please feel free to contact me.

Your comments and suggestions are welcome!