This section covers the steps necessary to install the correct executables for each type of Cluster node from precompiled binaries supplied by Oracle.
For setting up a cluster using precompiled binaries, the first step in the installation process for each cluster host is to download the binary archive from the10bet博彩公司
. (For the most recent 64-bit NDB 8.0 release, this ismysql-cluster-gpl-8.0.26-linux-glibc2.12-x86_64.tar.gz
.) We assume that you have placed this file in each machine's/ var / tmp
directory.
If you require a custom binary, seeSection 2.9.5, “Installing MySQL Using a Development Source Tree”.
After completing the installation, do not yet start any of the binaries. We show you how to do so following the configuration of the nodes (seeSection 23.3.3, “Initial Configuration of NDB Cluster”).
SQL nodes.On each of the machines designated to host SQL nodes, perform the following steps as the systemroot
user:
Check your
/etc/passwd
and/etc/group
files (or use whatever tools are provided by your operating system for managing users and groups) to see whether there is already amysql
group andmysql
user on the system. Some OS distributions create these as part of the operating system installation process. If they are not already present, create a newmysql
user group, and then add amysql
user to this group:shell> groupadd mysql shell> useradd -g mysql -s /bin/false mysql
的syntax foruseraddandgroupaddmay differ slightly on different versions of Unix, or they may have different names such asadduserandaddgroup.
Change location to the directory containing the downloaded file, unpack the archive, and create a symbolic link named
mysql
to themysql
directory.Note的actual file and directory names vary according to the NDB Cluster version number.
shell> cd /var/tmp shell> tar -C /usr/local -xzvf mysql-cluster-gpl-8.0.26-linux-glibc2.12-x86_64.tar.gz shell> ln -s /usr/local/mysql-cluster-gpl-8.0.26-linux-glibc2.12-x86_64 /usr/local/mysql
Change location to the
mysql
directory and set up the system databases usingmysqld--initialize
as shown here:shell> cd mysql shell> mysqld --initialize
This generates a random password for the MySQL
root
account. If you donotwant the random password to be generated, you can substitute the--initialize-insecure
option for--initialize
. In either case, you should reviewSection 2.10.1, “Initializing the Data Directory”, for additional information before performing this step. See alsoSection 4.4.2, “mysql_secure_installation — Improve MySQL Installation Security”.Set the necessary permissions for the MySQL server and data directories:
shell> chown -R root . shell> chown -R mysql data shell> chgrp -R mysql .
Copy the MySQL startup script to the appropriate directory, make it executable, and set it to start when the operating system is booted up:
shell> cp support-files/mysql.server /etc/rc.d/init.d/ shell> chmod +x /etc/rc.d/init.d/mysql.server shell> chkconfig --add mysql.server
(The startup scripts directory may vary depending on your operating system and version—for example, in some Linux distributions, it is
/etc/init.d
.)Here we use Red Hat'schkconfigfor creating links to the startup scripts; use whatever means is appropriate for this purpose on your platform, such asupdate-rc.don Debian.
Remember that the preceding steps must be repeated on each machine where an SQL node is to reside.
Data nodes.Installation of the data nodes does not require themysqldbinary. Only the NDB Cluster data node executablendbd(single-threaded) orndbmtd(multithreaded) is required. These binaries can also be found in the.tar.gz
archive. Again, we assume that you have placed this archive in/ var / tmp
.
As systemroot
(that is, after usingsudo,su root, or your system's equivalent for temporarily assuming the system administrator account's privileges), perform the following steps to install the data node binaries on the data node hosts:
Change location to the
/ var / tmp
directory, and extract thendbdandndbmtdbinaries from the archive into a suitable directory such as/usr/local/bin
:shell> cd /var/tmp shell> tar -zxvf mysql-cluster-gpl-8.0.26-linux-glibc2.12-x86_64.tar.gz shell> cd mysql-cluster-gpl-8.0.26-linux-glibc2.12-x86_64 shell> cp bin/ndbd /usr/local/bin/ndbd shell> cp bin/ndbmtd /usr/local/bin/ndbmtd
(You can safely delete the directory created by unpacking the downloaded archive, and the files it contains, from
/ var / tmp
oncendb_mgmandndb_mgmdhave been copied to the executables directory.)Change location to the directory into which you copied the files, and then make both of them executable:
shell> cd /usr/local/bin shell> chmod +x ndb*
的preceding steps should be repeated on each data node host.
Although only one of the data node executables is required to run an NDB Cluster data node, we have shown you how to install bothndbdandndbmtdin the preceding instructions. We recommend that you do this when installing or upgrading NDB Cluster, even if you plan to use only one of them, since this saves time and trouble in the event that you later decide to change from one to the other.
的data directory on each machine hosting a data node is/usr/local/mysql/data
. This piece of information is essential when configuring the management node. (SeeSection 23.3.3, “Initial Configuration of NDB Cluster”.)
Management nodes.Installation of the management node does not require themysqldbinary. Only the NDB Cluster management server (ndb_mgmd) is required; you most likely want to install the management client (ndb_mgm) as well. Both of these binaries also be found in the.tar.gz
archive. Again, we assume that you have placed this archive in/ var / tmp
.
As systemroot
, perform the following steps to installndb_mgmdandndb_mgmon the management node host:
Change location to the
/ var / tmp
directory, and extract thendb_mgmandndb_mgmdfrom the archive into a suitable directory such as/usr/local/bin
:shell> cd /var/tmp shell> tar -zxvf mysql-cluster-gpl-8.0.26-linux-glibc2.12-x86_64.tar.gz shell> cd mysql-cluster-gpl-8.0.26-linux-glibc2.12-x86_64 shell> cp bin/ndb_mgm* /usr/local/bin
(You can safely delete the directory created by unpacking the downloaded archive, and the files it contains, from
/ var / tmp
oncendb_mgmandndb_mgmdhave been copied to the executables directory.)Change location to the directory into which you copied the files, and then make both of them executable:
shell> cd /usr/local/bin shell> chmod +x ndb_mgm*
InSection 23.3.3, “Initial Configuration of NDB Cluster”,我们创建的配置文件的所有点头es in our example NDB Cluster.