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59 lines
2.1 KiB
Text
59 lines
2.1 KiB
Text
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MySQL Filesystem
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T<EFBFBD>nu Samuel - tonu@mysql.com
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Some additional information is available on http://no.spam.ee/~tonu/mysqlfs.html
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WARNING: Experimental code and known to crash computer.
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Instructions, how to get this stuff working:
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1. Make sure you have ORBit, includeing development libraries installed. They should be version 0.5.3 or later.
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- I am lazy man and use default ones included with my RedHat:
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[root@localhost /root]# rpm -qa | grep ORBit
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ORBit-0.5.3-2
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ORBit-devel-0.5.3-2
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[root@localhost /root]#
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2. Prepare kernel to include korbit:
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- Get Linux 2.4.1 kernel source. (very possibly this patch works on 2.4.0 without modifications too)
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- unpack it
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- apply patch named "korbit-kernel-2.4.1-patch" on it.
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- make menuconfig
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- In section "Networking options":
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...
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[*] Kernel ORB (EXPERIMENTAL)
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...
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<M> CORBA User-space FileSystem (EXPERIMENTAL)
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...
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- make dep ; make bzlilo ; make modules ; make modules_install
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- reboot
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- Execute: insmod /lib/modules/$(uname -r)/kernel/net/korbit/modules/CorbaFS/client/corba-corbafs-client.o
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You should see "gethostname() = localhost". Look at known bug 3 in the end of this doc.
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3. Make sure MySQL server is working on your system
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- On my RedHat 7.0 I execute "/etc/init.d/mysqld start"
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4. Prepare MySQL FS daemon
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- Get MySQL 4.0 from repository OR get MySQL FS source from http://no.spam.ee/~tonu/mysqlfs.html
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- unpack it. In MySQL 4.0 source this is located in directory named "fs". cd into it.
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- make
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- Execute command "./RunServer"
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5. mount MySQL server to disk tree
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- Execute command "mkdir /mnt/mysql"
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- Execute command "mount -t corbafs -o `cat /tmp/mysqlcorbafs.ior` none /mnt/mysql/"
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- Check you SQL server content by executing "ls -la /mnt/mysql/"
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Known bugs:
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1. User bugs. fix user ;)
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2. MySQL FS daemon will crash or will be stopped when cobrafs is mounted, then there is no way
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to unmount disks anymore. This is korbit business to handle such cases and I had no time to dig
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into korbit code.
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3. host name returned by gethostname() should be "localhost" or korbit will crash. Also "localhost"
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must be first string after 127.0.0.1 in /etc/hosts
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