Mysql Crash Receovery: Difference between revisions

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'''Mysql Crash Recovery'''
#REDIRECT [[Mysql Crash Recovery]]
 
 
BUG "http://bugzilla.zimbra.com/show_bug.cgi?id=15797"
 
 
Mysql Crash recovery is performed when Mysql stops responding and there is error in the /opt/zimbra/db/data/hostname.err [Please check the BUG above for more information]
 
 
Steps to perform Recovery:
 
 
* Edit /opt/zimbra/conf/my.cnf: Put an entry :- '''innodb_force_recovery = 3'''
 
 
* Dump the database:- mysqldump zimbra and mboxgroup DB's
 
* Drop all Database's.
 
 
* Create all Database's.
 
 
* Restore dump data.
 
 
1) Edit the my.cnf file and put '''innodb_force_recovery = 3''' : save the file and start mysql. [mysql.server start]
 
 
2) mysql -NB -e "show databases" | grep mbox > /tmp/mysql.db.list    [Make a list of the existing database]
 
 
3) mkdir /tmp/mysql.sql
 
 
4) mysqldump zimbra -S /opt/zimbra/db/mysql.sock -u root -p AOJTGukheoAar080cauxqOyVt0khuUI > /tmp/mysql.sql/zimbra.sql
 
 
["AOJTGukheoAar080cauxqOyVt0khuUI" is the '''Mysql Root Password''']
 
 
5) Dumping Databases: Run the following command from the prompt:
 
 
for db in `< /tmp/mysql.db.list`; \do /opt/zimbra/mysql/bin/mysqldump $db -S /opt/zimbra/db/mysql.sock -u zimbra -ppvbaAlDCHQ8UtMcY2oqNo91kyyqdX0 >
 
/tmp/mysql.sql/$db.sql; \echo -e "Dumped $db\n"; \done;
 
["-ppvbaAlDCHQ8UtMcY2oqNo91kyyqdX0" is the '''Mysql Zimbra Password''']
 
 
6) Drp the Database:
 
 
for db in `< /tmp/mysql.db.list`; \ do mysql -e "drop database $db"; \echo -e "Dropped $db"; \done;
 
 
 
7) mysql -e "drop database zimbra"
 
 
8) Run Mysql in Non-Recovery Mode:
 
 
Remove the '''innodb_force_recovery = 3''' from the my.cnf file.
 
 
Stop Mysql Server and Start again.
 
 
9) Create Database:
 
 
mysql -e "create database zimbra character set utf8"
 
 
10) Create the existed Database:
 
 
for db in `< /tmp/mysql.db.list`; \ do mysql -e "create database $db character set utf8"; \
echo -e "Created $db \n";done; 
 
 
 
11) mysql zimbra < /tmp/mysql.sql/zimbra.sql
 
 
12) Update Mboxgroup:
 
 
for sql in /tmp/mysql.sql/mbox*; \  do mysql `basename $sql .sql` < $sql; \echo -e "Updated `basename $sql .sql` \n"; \done;
 
 
13) zmcontrol start
 
 
14) Check if everything is up and running.
 
 
{{Article Footer|Zimbra Collaboration Suite 4.5.6|13/8/2007}}

Latest revision as of 20:38, 13 August 2007

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