Last updated
Last updated
Expanding a cluster with a new backend host is similar to the Weka system installation process using the CLI.
Note: In most cases, the host configurations are similar. Therefore, it is possible to import the host setting from a previously exported host in the cluster, saving time and avoiding misconfiguration. See .
Download the Weka Install File used when the existing cluster was last upgraded (or formed, if not upgraded).
Use the weka status
command to show the current cluster install file version.
See
Run the untar
command and install.sh
command on the new host.
At the end of the installation process, the host is in stem mode (the host is not attached to a cluster).
Command: weka cluster host add
On any host that is part of the cluster, run the following command line:
Parameters:
Note: On completion of this stage, the host-ID of the newly added host appears in response to the command. Make a note of it to use in the following steps.
Note: You can activate the cluster hosts sequentially.
In most cases, the host configurations are similar. Therefore, it is possible to import the host setting from a previously exported host in the cluster, saving time and avoiding misconfiguration.
Procedure:
Connect to one of the hosts in the cluster and export the settings by running the following command: weka local resources export
.
Connect to the new host and import the settings by running the following command:
weka local resources import
.
Perform the instructions in .
Perform the instructions in .
Apply the configuration on the newly added host. Perform the instructions in .
Perform the instructions in .
Perform only stages 1 to 3 in the procedure (above).
Edit the local configuration. See the section.
Apply the configuration on the newly added host. See.
Name
Type
Value
Limitations
Mandatory
Default
backend-hostname
String
IP/hostname of the new backend host to add
Valid hostname (DNS or IP)
Yes