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11 Cards in this Set

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Syntax to show all unique variables in the config table.

select distinct variable from config.config;


or


select * from config.config group by variable;

Steps to pull config database from snapshot.

1. mysql


2. DROP DATABASE config;


3. /home/product/code/firmware/current/web/cgi-bin/index.cgi




or just mysql_recreate.sh

Mysql not starting upon restart of mysql

Check to see if problem is stuck PID


1. touch /tmp/nowatchdog


2. service msyql stop


3. ps aux | grep mysqld


4. kill any remaining PID's


5. rm /tmp/nowatchdog


6. service mysql start

show connections

show status where variable_name like '%conn%';

mysql error file

/mail/mysql/..err

find unknown variable

1. tail -f /mail/log/gui


2. change value in gui

Cluster variables

cluster_systems[0] <--IP address or hostname
cluster_systems_mode[0] <--Active or standby
cluster_systems_serial[0] <--Serial number

Allow customer to view changes to database

Web Interface systlog:


Advanced > Advanced Networking

Understand when and how to do a mysql recreate.




Identify when MySQL cannot be revived.

Identify the different databases used on the Barracuda.

config


pu_pref


stats


message_log




mysql


information_schema


test

Move output into outfile

select distinct(scope_data) from config where scope_data like '%@qgtb.com' into outfile '/tmp/output.txt';