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create-node
Info
SingleStore Managed Service does not support this command.
Create a SingleStoreDB node on a specific host.
Usage
Create a SingleStoreDB node on a specific host.
sdb-admin create-node will create a SingleStoreDB node on a registered host by
creating its config file and associated data directories on the filesystem.
This command will also start the node by default. If you are managing the node
state with systemd (via sdb-systemd-client), consider running this command with
the '--no-start' flag, and then start the node using 'sdb-admin start-node' or
'sdb-admin restart-node'.
Example usages:
sdb-admin create-node --host host1 --password TEST_PASSWORD
This will create a node on host1 with its files in the default install directory
on host1. The node will also be started and the database root password
will be set to "TEST_PASSWORD".
If you do not want to use the --password flag to pass in the database
root password you may also set the environment variable "MEMSQL_PASSWORD".
The --password must be specified if the node will be started, but it may be set
to the empty string (equivalent to no password) for convenience in demo or
testing situations:
sdb-admin create-node --host host1 --password ""
If you only want to lay out the node's data and directories on the filesystem
but do not want to start the process, set --no-start:
sdb-admin create-node --host host1 --no-start
Note that you must NOT specify a password when you use --no-start and thus when
the node is eventually started, its SingleStoreDB root password will not be set. You
will have to run 'sdb-admin change-root-password' to set it.
To configure the port (default 3306):
sdb-admin create-node --host host1 --password TEST_PASSWORD --port 3307
By default the node's data and directories will be rooted in a base install
directory (named a randomly generated UUID) which is in the default install dir.
To find out where the default install dir is on host1, run "memsqlctl env" on
host1. Note that the singlestoredb-server rpm and deb packages configure the default
install dir to be /var/lib/memsql.
If you want to change where the node's base install dir is on host1:
sdb-admin create-node --host host1 --password TEST_PASSWORD --base-install-dir /memsql_node_1
This will lay out all of the node's data and directories on host1 in
/memsql_node_1. The filesystem will resemble:
/memsql_node_1
memsql.cnf
data/
auditlogs/
plancache/
tracelogs/
If you want to change the location of only one directory and leave the rest
in a directory rooted in the default install dir on host1:
sdb-admin create-node --host host1 --password TEST_PASSWORD --datadir /data/memsql_node_1/data
The filesystem will resemble:
{default install dir}
{base dir}
memsql.cnf
auditlogs/
plancache/
tracelogs/
/data/memsql_node_1
data/
In addition, the --role flag can be used to assign a role to the node
after creation. Possible roles are 'leaf', 'aggregator', and 'master'.
Create an aggregator node:
sdb-admin create-node --host host1 --password TEST_PASSWORD --role aggregator
Some additional flags can be used to set role-specific options.
For example, the role of 'master'
requires a license to be provided or the MEMSQL_LICENSE environment variable to be set:
sdb-admin create-node --host host1 --password TEST_PASSWORD --role master --license your_license
Usage:
sdb-admin create-node [flags]
Flags:
--allow-ipv6 Allow the node to use IPv6
--auditlogsdir STRING Absolute path to the auditlogs dir on the target host
--availability-group INT Availability group to assign to the leaf node
--base-install-dir STRING Absolute path to the base install directory on the target host
--bind-address STRING The bind address
--datadir STRING Absolute path to the data dir on the target host
--disable-auto-restart Disable automatic restarting of memsqld on error
--force-master Force-assigns the role of master, even if a master exists
-h, --help Help for create-node
--host string Where to create the node
--license LICENSE License to apply to the master node
--memsql-config STRING Absolute path to the node config file path on the target host
--no-start Do not start the node
-p, --password STRING The database user's password. If a password is specified on the command line, it must not contain an unescaped '$' character as it will be replaced by the shell.
If a password is not specified on the command line and --no-start is not set, Toolbox will attempt to read the password from the ‘MEMSQL_PASSWORD’ environment variable.
If this variable is present but does not contain a value, or if the variable does not exist, Toolbox will prompt for a password
--plancachedir STRING Absolute path to the plancache dir on the target host
-P, --port PORT The port
--role {master, aggregator, leaf, unknown} Role that a node will be assigned when created. Possible roles are LEAF, AGGREGATOR, and MASTER (default Unspecified)
--ssl-fips-mode string Whether the node operates in OpenSSL/FIPS mode
--tracelogsdir STRING Absolute path to the tracelogs dir on the target host
--user STRING The database user for setting a role
--user-password STRING The database user's password for setting the role. If a password is specified on the command line, it must not contain an unescaped '$' character as it will be replaced by the shell
Global Flags:
--backup-cache FILE_PATH File path for the backup cache
--cache-file FILE_PATH File path for the Toolbox node cache
-c, --config FILE_PATH File path for the Toolbox configuration
--disable-colors Disable color output in console, which some terminal sessions/environments may have difficulty with
--disable-spinner Disable the progress spinner, which some terminal sessions/environments may have issues with
-j, --json Enable JSON output
--parallelism POSITIVE_INTEGER Maximum number of operations to run in parallel
--runtime-dir DIRECTORY_PATH Where to store Toolbox runtime data
--ssh-control-persist SECONDS Enable SSH ControlPersist and set it to the specified duration in seconds
--ssh-max-sessions POSITIVE_INTEGER Maximum number of SSH sessions to open per host, must be at least 3
--ssh-strict-host-key-checking Enable strict host key checking for SSH connections
--ssh-user-known-hosts-file FILE_PATH Path to the user known_hosts file for SSH connections. If not set, /dev/null will be used
--state-file FILE_PATH Toolbox state file path
-v, --verbosity count Increase logging verbosity: valid values are 1, 2, 3. Usage -v=count or --verbosity=count
-y, --yes Enable non-interactive mode and assume the user would like to move forward with the proposed actions by default
Remarks
Before running this command, SingleStore DB must be installed on the host first. Use sdb-deploy install
to install SingleStore DB on the host machine.
This command is interactive unless you use either the --yes
or --json
flags to override interactive behavior.