replication - master and slave on the same computer
Hi list, I have a question about replication in MySQL. I have mysql 4.0.12 (master and slave) on windows 2000. Can I make master and slave on the same computer? If I have the master on disk c, and the slave on disk d: 1) When do I put the my.ini file of the slave? 2) How can I stop and start the slave server? If I run the command NET STOP Mysql it stop the server on disk c.. Thanks very much Inbal --8 I think it should be possible. Trying the same thing here under linux with a config like this: [mysqld_multi] mysqld = /usr/bin/safe_mysqld mysqladmin = /usr/bin/mysqladmin user = user password = pass [mysqld1] datadir = /var/lib/mysql socket = /var/lib/mysql/mysql.sock port= 3306 pid-file= /var/lib/mysql/hostname.pid skip-locking skip-innodb set-variable= max_connections=300 set-variable= key_buffer=512M set-variable= max_allowed_packet=1M set-variable= table_cache=384 set-variable= sort_buffer=128M set-variable= join_buffer_size=64M set-variable= record_buffer=512M set-variable= net_buffer_length=8K set-variable= myisam_sort_buffer_size=256M log-bin server-id = 1 [mysqld2] datadir = /var/lib/mysqlrep socket = /var/lib/mysqlrep/mysql.sock port= 3307 pid-file= /var/lib/mysqlrep/hostname.pid skip-locking skip-innodb set-variable= max_connections=300 set-variable= key_buffer=512M set-variable= max_allowed_packet=1M set-variable= table_cache=384 set-variable= sort_buffer=128M set-variable= join_buffer_size=64M set-variable= record_buffer=512M set-variable= net_buffer_length=8K set-variable= myisam_sort_buffer_size=256M master-host = localhost master-user = repl master-password = password master-port = 3306 server-id = 2 replicate-do-db = nuria replicate-ignore-db = mysql [mysql.server] user=mysql basedir=/var/lib [safe_mysqld] err-log=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid HOWEVER, although it seems to try and replicate there must still be something with this config, because i can run both daemons but not at the same time. E.g. mysqld_multi start 1 works fine but when I start the second the errorlog shows me this: 030527 17:26:14 mysqld started /usr/libexec/mysqld: ready for connections 030527 17:26:14 Slave thread: error connecting to master: Access denied for user: '[EMAIL PROTECTED]' (Using password: YES) (0), retry in 60 sec mysqld got signal 11; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail key_buffer_size=536866816 record_buffer=536866816 sort_buffer=134217720 max_used_connections=0 max_connections=300 threads_connected=0 It is possible that mysqld could use up to key_buffer_size + (record_buffer + sort_buffer)*max_connections = 4193097 K bytes of memory Hope that's ok, if not, decrease some variables in the equation Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... Cannot determine thread, fp=0x4001f40c, backtrace may not be correct. Stack range sanity check OK, backtrace follows: 0x80e345c 0x4007d618 0x 0x80e3a5b 0x400782b6 0x420de407 New value of fp=(nil) failed sanity check, terminating stack trace! Please read http://www.mysql.com/doc/U/s/Using_stack_trace.html and follow instructions on how to resolve the stack trace. Resolved stack trace is much more helpful in diagnosing the problem, so please do resolve it The manual page at http://www.mysql.com/doc/C/r/Crashing.html contains information that should help you find out what is causing the crash Number of processes running now: 0 Still looking into it.. Let me know when you find out anything.
RE: replication - master and slave on the same computer
You need to start 2 instances of mysqld both on different ports and different datadirs. I recommend reading Paul Dubois MySQL second Edition- The definitive guide to using, programming, and administering mysql 4 databases. He has a section on replication + running multiple instances of mysqld. ---Original Message- --From: Vico Timmermans [mailto:[EMAIL PROTECTED] --Sent: Tuesday, May 27, 2003 8:51 AM --To: [EMAIL PROTECTED] --Subject: replication - master and slave on the same computer -- -- --Hi list, --I have a question about replication in MySQL. --I have mysql 4.0.12 (master and slave) on windows 2000. -- --Can I make master and slave on the same computer? -- --If I have the master on disk c, and the slave on disk d: --1) When do I put the my.ini file of the slave? --2) How can I stop and start the slave server? If I run the command NET --STOP --Mysql it stop the server on disk c.. -- --Thanks very much --Inbal -- 8 -- --I think it should be possible. Trying the same thing here --under linux with a config like this: -- --[mysqld_multi] --mysqld = /usr/bin/safe_mysqld --mysqladmin = /usr/bin/mysqladmin --user = user --password = pass -- --[mysqld1] --datadir = /var/lib/mysql --socket = /var/lib/mysql/mysql.sock --port= 3306 --pid-file= /var/lib/mysql/hostname.pid --skip-locking --skip-innodb --set-variable= max_connections=300 --set-variable= key_buffer=512M --set-variable= max_allowed_packet=1M --set-variable= table_cache=384 --set-variable= sort_buffer=128M --set-variable= join_buffer_size=64M --set-variable= record_buffer=512M --set-variable= net_buffer_length=8K --set-variable= myisam_sort_buffer_size=256M --log-bin --server-id = 1 -- --[mysqld2] --datadir = /var/lib/mysqlrep --socket = /var/lib/mysqlrep/mysql.sock --port= 3307 --pid-file= /var/lib/mysqlrep/hostname.pid --skip-locking --skip-innodb --set-variable= max_connections=300 --set-variable= key_buffer=512M --set-variable= max_allowed_packet=1M --set-variable= table_cache=384 --set-variable= sort_buffer=128M --set-variable= join_buffer_size=64M --set-variable= record_buffer=512M --set-variable= net_buffer_length=8K --set-variable= myisam_sort_buffer_size=256M --master-host = localhost --master-user = repl --master-password = password --master-port = 3306 --server-id = 2 --replicate-do-db = nuria --replicate-ignore-db = mysql -- --[mysql.server] --user=mysql --basedir=/var/lib -- --[safe_mysqld] --err-log=/var/log/mysqld.log --pid-file=/var/run/mysqld/mysqld.pid -- -- -- -- --HOWEVER, although it seems to try and replicate there must still --be something with this config, because i can run both daemons but --not at the same time. E.g. mysqld_multi start 1 works fine but --when I start the second the errorlog shows me this: -- -- --030527 17:26:14 mysqld started --/usr/libexec/mysqld: ready for connections --030527 17:26:14 Slave thread: error connecting to master: Access denied --for user: '[EMAIL PROTECTED]' (Using password: YES) (0), retry in 60 sec --mysqld got signal 11; --This could be because you hit a bug. It is also possible that this binary --or one of the libraries it was linked against is corrupt, improperly --built, --or misconfigured. This error can also be caused by malfunctioning --hardware. --We will try our best to scrape up some info that will hopefully help --diagnose --the problem, but since we have already crashed, something is definitely --wrong --and this may fail -- --key_buffer_size=536866816 --record_buffer=536866816 --sort_buffer=134217720 --max_used_connections=0 --max_connections=300 --threads_connected=0 --It is possible that mysqld could use up to --key_buffer_size + (record_buffer + sort_buffer)*max_connections = 4193097 --K --bytes of memory --Hope that's ok, if not, decrease some variables in the equation -- --Attempting backtrace. You can use the following information to find out --where mysqld died. If you see no messages after this, something went --terribly wrong... --Cannot determine thread, fp=0x4001f40c, backtrace may not be correct. --Stack range sanity check OK, backtrace follows: --0x80e345c --0x4007d618 --0x --0x80e3a5b --0x400782b6 --0x420de407 --New value of fp=(nil) failed sanity check, terminating stack trace! --Please read http://www.mysql.com/doc/U/s/Using_stack_trace.html and --follow --instructions on how to resolve the stack trace. Resolved --stack trace is much more helpful in diagnosing the problem, so please do --resolve it --The manual page at http://www.mysql.com/doc/C/r/Crashing.html contains --information that should help you find out what is causing the crash -- --Number of processes running now: 0 -- -- -- --Still looking into it.. Let me know when you find out anything. -- MySQL General Mailing List For list
Re: replication - master and slave on the same computer
At 17:51 27/5/2003 +0200, Vico Timmermans wrote: Hi, Hi list, I have a question about replication in MySQL. I have mysql 4.0.12 (master and slave) on windows 2000. Can I make master and slave on the same computer? Yes. Assuming that you want the master on drive C and the slave on drive D, the lines begin # are my comments: # set the service for master: mysqld-max-nt --install or mysqld-max-nt --install-manual # the commands above installs a service called MySQL # set the service for slave mysqld-nt --install myslave or mysqld-nt --install-manual myslave # the commands above installs a service called myslave now using the same \winnt\my.ini file [mysqld] basedir=c:/mysql datadir=c:/mysql/data port=3306 [myslave] #notice that the server group is the same of the service name basedir=c:/mysql datadir=d:/mysql/data port=3307 #follow the complementary instructions how to set a master and a #slave locating the set keys for master under [mysqld] and the #set keys for the slave under [myslave]. #Run and stop the services using the name mysql for master and #myslave for the slave. If I have the master on disk c, and the slave on disk d: 1) When do I put the my.ini file of the slave? 2) How can I stop and start the slave server? If I run the command NET STOP Mysql it stop the server on disk c.. -- Regards, For technical support contracts, visit https://order.mysql.com/ Are you MySQL certified?, http://www.mysql.com/certification/ __ ___ ___ __ / |/ /_ __/ __/ __ \/ /Miguel Angel Solórzano [EMAIL PROTECTED] / /|_/ / // /\ \/ /_/ / /__ São Paulo - Brazil /_/ /_/\_, /___/\___\_\___/ ___/ www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
