Disable Tuned services in RHEL 7 – Hadoop Cluster best practice

Tune you Linux OS to maximize the Hadoop Cluster performance by disabling “Tuned Daemon” in RHEL 7 OS.

If you are setting up Hadoop Cluster in RHEL 7 servers, then you should disable the Tuned daemon Service which comes as default daemon in RHEL 7 version of Linux.

Tuned daemon is introduced to boots the performance of the OS as per needs. But this is not recommended for Hadoop Clusters, because enabling one profile will have impact on other profiles.

Below are the list of profiles provided by default.

Follow the below instruction to Disable the Tuned daemon [Screenshots attached]

1. Start Tuned Service

   #Check the status of the Tuned daemon service.
   
   sudo systemctl status tuned
   
   # If status found "dead" use the below option to start it. 
   # you can use start to just start or restart as well. 
   
   sudo systemctl start tuned

   

   Check the status of tuned service

2. List active profiles

   #This command provides you list of profiles available and Active profiles as well. 
   sudo tuned-adm list

   

   List of Tuned profiles

3. Stop and Disable tuned daemon

   #For disabling you must stop the Daemon first and disable on start during system bootup 
   
   sudo systemctl stop tuned
   # Once you stoped the daemon, you can verify using "status" option. 
   # Disable the tuned service to start during system bootup time.
   
   sudo systemctl disable tuned 
   
   
   

   

   Stop and disable tuned service

    

   Now you have permanently disabled the “Tuned daemon” in you RHEL 7 server. proceed with Next OS Optimization for Hadoop Cluster.

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