Name | Synopsis | Description | Options | Operands | Examples | Exit Status | Diagnostics | See Also
hadbm addnodes [-no-refragment] [-spares=spare_count] [-historypath=path] [-devicepath=path] [-set=attribute_name_value_list] [ -dbpasswordfile=filename] [ -adminpasswordfile=filename] [-agent=ma_url] [-scrollprogress] -hosts=host_list [dbname]
Use the hadbm addnodes command to add new nodes to the named database, initialize the devices for the new nodes, and refragment the schema. The number of spares identified is the number of spares to be alloted from the host list as specified in the -hosts option. Hosts must be specified in pairs. All the active nodes in the database should be running when executing the hadbm addnodes command (this means the database has at least FaultTolerant or HAFaultTolerant state). If the database is not specified, the default database is used. The database is restarted without loss of service after adding the nodes.
Refragmentation, though time consuming, is needed to store the data on the newly created nodes. You can elect to perform refragmentation during node creation (default). However, if you have chosen -no-refragment, you can refragment later by using the hadbm refragment command. The database is available during refragmentation.
Data devices must have 50% free space to accomodate the old and new copies of the user data during refragmentation.
The file from which the administrator user password is read. Passwords can only be supplied interactively or through the password file.
Identifies the URL to the Management Agent(s) (hostlist:port).
If this option is specified or set to true, refragmentation is not performed on the database after adding the nodes . If the option is not specified, or set to false (default), the database is refragmented after adding the nodes. All tables are refragmented over all nodes; including the new nodes.
Identifies the number of hosts to be used as spares out of the new nodes that are added.
The path for the database history files.
The path for the data and log devices. The path to the device must already exist. To set the path differently for each node or device, use the -set option. There are three types of devices:
DataDevice
NiLogDevice (node internal log device
RelalgDevice (relational algebra query device)
Identifies the file containing the password to be used for the system user of the database.
Identifies the configuration parameters that will be set to the database. Must be specified as a comma-separated list of database configuration attributes in name=value format. See hadbm set command for a list of writable configuration attributes.
A comma-separated list of new host names for the new nodes in the database. Duplicates are allowed; this creates multiple nodes on the same machine with different port numbers. Keep the mirror nodes on separate DRUs for deployment. One node is created for each comma-separated item in the list. The number of nodes must be even.
If the database is already created with double network configuration, the nodes being added should also support that same configuration. They should have two NIC cards and the -hosts option should define the IP addresses for them. See the hadbm create command for more details.
Identifies the URL to the Management Agent(s) (hostlist:port).
If the -scrollprogress option is specified, the progress messages scroll down the screen, instead of being overwritten. The progress bar will not be displayed if the -––quiet option is specified. By default, progress messages are not specified.
hadbm addnodes --dbpasswordfile=/home/hadb/dbpfile --hosts host8,host9 mydatabase Nodes successfully added to the database |
hadbm addnodes --dbpasswordfile=/home/hadb/dbpfile --spares=2 --hosts=host8,host9 mydatabase Nodes successfully added to the database |
hadbm addnodes --hosts=host7,host8 Please enter password for system user: Nodes successfully added to the database |
specified database does not exist
host unreachable
hosts not added in pairs
invalid database state
database could not be refragmented (if the option -no-fragment is not set)
specified number of spares could not be allocated
path on host does not exist
path on host needs write permissions
database state deteriorated
refragmentation cannot be done
database not refragmented (warning issued when the option -no-fragment is set)
hadbm-clear(1), hadbm-create(1), hadbm-delete(1), hadbm-list(1)hadbm-refragment(1), hadbm-restart(1), hadbm-set(1), hadbm-start(1), hadbm-status(1), hadbm-stop(1)
Name | Synopsis | Description | Options | Operands | Examples | Exit Status | Diagnostics | See Also