Hi, Im following this tutorial http://www.howtoforge.com/installing-a-web-email-and-mysql-database-cluster-on-debian-6.0-with-ispconfig-3 Ive followed up to foillowing steps: scp -pr /var/lib/mysql/* [email protected]:/var/lib/mysql/ scp -pr /etc/mysql/debian.cnf [email protected]:/etc/mysql/debian.cnf Now we start MySQL on the master server again: /etc/init.d/mysql start Log into the MySQL shell as root user... mysql -u root -p ... and execute this command in the MySQL shell... SHOW MASTER STATUS; ... to get the MySQL master status: mysql> SHOW MASTER STATUS; +------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000005 | 106 | | | +------------------+----------+--------------+------------------+ 1 row in set (0.00 sec) after Show SLave Status \g I get .... SHOW SLAVE STATUS \G *************************** 1. row *************************** Slave_IO_State: Connecting to master Master_Host: xxx.xxx.xxx.60 Master_User: slaveuser Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000005 Read_Master_Log_Pos: 106 Relay_Log_File: mysqld-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: mysql-bin.000005 Slave_IO_Running: No Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 106 Relay_Log_Space: 106 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: NULL Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 2013 Last_IO_Error: error connecting to master '[email protected]:3306' - retry-time: 60 retries: 86400 Last_SQL_Errno: 0 Last_SQL_Error: SO slave IO is not running :-( When I tried the next part : On server 2: Log into the MySQL shell as root user... mysql -u root -p I get this error message : ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) I think its because the tutorial said to switch off mysql on server 2 in a previous step, and never mentions to restart it. As if i start it again, it lets me log in. If so, Ive a feeling that server 2 should have either not been turned off, or turned on at some point before and possibly cause of previous errors. Ive been over and over it wit a fresh pair of eyes 5 times hence Master_Log_File: mysql-bin.000005 Is anyone able to point me in the right direction? I think Ive missed a really simple obvious step, but cant see where. Possibly one missing from howto? DO I need to reformat and start from scratch or can these be saved ?
Thanks Till. Really appreciate your assistance. (server 2) That error has gone away on but now I get ERROR 29 (HY000): File '/var/lib/mysql/master.info' not found (Errcode: 13) when running STOP SLAVE; CHANGE MASTER TO MASTER_HOST='xx.xx.xx.59', MASTER_USER='slaveuser', MASTER_PASSWORD='xxxxx', MASTER_LOG_FILE='mysql-bin.000005', MASTER_LOG_POS=106; START SLAVE; Ive googled it, but only suffered brain melt as a result. (server 1) When i run SHOW SLAVE STATUS \G i get the following - notice the bold bits :-( Slave_IO_State: Master_Host: x.x.x.60 Master_User: slaveuser Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000005 Read_Master_Log_Pos: 106 Relay_Log_File: mysqld-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: mysql-bin.000005 Slave_IO_Running: No Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 106 Relay_Log_Space: 106 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: NULL Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 1236 Last_IO_Error: Got fatal error 1236 from master when reading dat a from binary log: 'Could not find first log file name in binary log index file' Last_SQL_Errno: 0 Last_SQL_Error:
Ive tried everything i can think of, getting the last error I mentioned. Ill have to start from beginning I think as im in a hurry, but would have been great to learn from my mistakes so idont make it again SO if anyone encounters same thing , and finds out why it happened, please do let me know
installing web mailmysq database cluster debian - adding 2nd Slave Hi, The 2nd time around I followed this tutorial it worked SO many thanks I now have 2 mirrored servers, although they are both in the same place. How can I add a third server (2nd slave) into the mix ? For complete redundancy. Also does anyone have any suggestions for some sort of automated backup? Of databases & files. Or is it easy to restore a failed server into the mix? I can only see some older tutorials, and technology moves so fast..... Im guessing id need to, (well like to) image both master & slaves. For speedy recover in a crisis. D
