Setting up High Availability (HA) for your ThoughtSpot cluster using AWS Elastic File System (EFS)

To set up HA for your ThoughSpot cluster, do the following:

  1. Create EFS File System spanning across different availability zones and different subnets.

  2. Create two ThoughtSpot clusters in each availability zone and in the subnets where the above file system was created.

  3. Change the IP addresses of the cluster (if needed).

  4. Create efs directory in /home/admin path and issue below command to mount the above created file system, editing the below sample link: 'sudo mount -t nfs -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,noresvport fs-f756f1ee.efs.us-west-1.amazonaws.com:/ /home/admin/efs/' Make sure read and write permissions are provided on all cluster EFS mount points. use: `chmod 777 /home/admin/efs`

  5. Go to First cluster. Create a snapshot and backup from that snapshot, on to the mount point where EFS is mounted. Below are sample commands: tscli snapshot create EfsTest HA 2 tscli backup create --mode full --type full --storage_type local EfsTest /home/admin/efs/Efs-backup
  6. Make sure the backup is created and accessible from all the clusters where EFS is mounted. In our cases both the clusters.
  7. Now bring down the first cluster instances.
  8. Go to Second cluster, delete existing cluster and create new one by restoring from the first cluster backup which is accessible from efs mount point. Example: tscli cluster restore /home/admin/EFS/Efs-backup

Cluster should now be successfully restored on the second cluster from the backup provided my EFS, achieving HA for ThoughtSpot clusters.