Manage installation questions
Several questions are displayed during the Redis Enterprise Software installation process.
Here, you’ll find a list of these questions and learn how to automatically answer these questions to perform a silent install.
Several questions appear during installation:
Linux swap file -
Swap is enabled. Do you want to proceed? [Y/N]?
We recommend that you disable Linux swap in the operating system configuration to give Redis Enterprise Software control of the memory allocation.
Automatic OS tuning -
Do you want to automatically tune the system for best performance [Y/N]?
To allow the installation process to optimize the OS for Redis Enterprise Software, answer
Y. The installation process prompts you for additional information.
/opt/redislabs/sbin/systune.shfile contains details about the tuning process.
Network time -
Do you want to set up NTP time synchronization now [Y/N]?
Redis Enterprise Software requires that all cluster nodes have synchronized time. You can either let the installation process configure NTP or you can configure NTP manually.
Firewall ports -
Would you like to open RedisLabs cluster ports on the default firewall zone [Y/N]?
Redis Enterprise Software requires that all nodes have specific network ports open. To open the ports, you can:
Yto let the installation process open these ports.
Nand configure the firewall manually for RHEL/CentOS firewall.
Nand configure the firewall on the node manually for your OS.
Installation verification (rlcheck) -
Would you like to run rlcheck to verify proper configuration? [Y/N]?
rlcheckinstallation verification to make sure that the installation completed successfully. If you want to run this verification at a later time, you can run:
Answer install questions automatically
To perform a silent (or automated) install, answer the questions when you start the install.
Answer yes to all questions
To automatically answer
yes to all questions (which accepts the default values), run the installation script with the
Configure file to answer
Use an answer file to manage your response:
Create a text file to serve as an answer file.
The answer file can contain any of the parameters for the installation questions and indicate the answer for each question with
ignore_swap=no systune=yes ntp=no firewall=no rlcheck=yes
If you use
systune=yes, the installation answers
yesto all of the system tuning questions.
Run the installation script with the
-ccommand-line option and add the path to the answer file.
./install.sh -c /home/user/answers