Installation of NDB Cluster on Linux 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. Note The 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. (See Section 23.2.3, “Initial Configuration of NDB Cluster” .) Management nodes.   Installation of the management node does not require the  mysqld  binary. 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 system  root , perform the following steps to install  ndb_mgmd  and  ndb_mgm  on the management node host: (You can safely delete the directory created by unpacking the downloaded archive, and the files it contains, from  /var/tmp  once  ndb_mgm  and  ndb_mgmd  have been copied to the executables directory.) In Section 23.2.3, “Initial Configuration of NDB Cluster” , we create configuration files for all of the nodes in our example NDB Cluster. This section covers the steps necessary to install the correct executables for each type of NDB Cluster 8.0 node using RPM packages supplied by Oracle. For information about RPMs for previous versions of NDB Cluster, see Installation using old-style RPMs (NDB 7.5.3 and earlier). As an alternative to the method described in this section, Oracle provides MySQL Repositories for NDB Cluster that are compatible with many common Linux distributions. Two repostories, listed here, are available for RPM-based distributions: RPMs are available for both 32-bit and 64-bit Linux platforms. The filenames for these RPMs use the following pattern: 3981 •For distributions using  yum  or  dnf , you can use the MySQL Yum Repository for NDB Cluster. See Installing MySQL NDB Cluster Using the Yum Repository , for instructions and additional information. •For SLES, you can use the MySQL SLES Repository for NDB Cluster. See  Installing MySQL NDB Cluster Using the SLES Repository , for instructions and additional information. 2. Change location to the directory into which you copied the files, and then make both of them executable: 1. Change location to the  /var/tmp  directory, and extract the  ndb_mgm  and  ndb_mgmd  from the archive into a suitable directory such as  /usr/local/bin : shell>  cd /var/tmp shell>  tar -zxvf mysql-cluster-gpl-8.0.25-linux-glibc2.12-x86_64.tar.gz shell>  cd mysql-cluster-gpl-8.0.25-linux-glibc2.12-x86_64 shell>  cp bin/ndb_mgm* /usr/local/bin shell>  cd /usr/local/bin shell>  chmod +x ndb_mgm* mysql-cluster-community-data-node-8.0.25-1.el7.x86_64.rpm 23.2.1.2 Installing NDB Cluster from RPM