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Mysqldump: Couldn't execute 'SHOW VARIABLES LIKE 'gtid\_mode'': Table 'performance_schema.session_variables' doesn't exist (1146)

I'm facing an error as following while running mysqldump command on Linux, how to resolve the issue as

`Table ‘performance_schema.session_variables’ doesn’t exist`?
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rolando
asked May 09 2019

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zinger
asked May 30 2023
edited May 31 2023
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The issue is Primarily Due to MySQL upgrade where some table data won't be updated to a New Version of Mysql. so we Won't be able to run mysqldump or any other command.

You can check the present configured variable on mysql, use the command as follow

mysqld --verbose --help
(or)
mysqld --no-defaults --verbose --help

There are two ways to Fix the problem

1. Temperory Fix

Need to upgrade mysql service on the server using the Following Command

mysql_upgrade -u root -p --force
(or)
mysql_upgrade -u root -p

otherwise

mysql -u root -p
mysql> set @@global.show_compatibility_56=ON;

2. permanent Fix

Add the following line in /etc/my.cnf file

show_compatibility_56 = ON

Then restarted the Mysql service

systemctl restart mysqld
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linuxhelp
asked May 09 2019
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crisporper
asked Sep 19 2023
edited Sep 20 2023
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