AI Center
2022.4
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- Getting Started
- Network Requirements
- Single-Node Requirements and Installation
- Multi-Node Requirements and Installation
- Post-installation
- Accessing AI Center
- Provision an AI Center Tenant
- Updating Orchestrator and Identity Server Certificates
- Resizing PVC
- Adding a New Node the Cluster
- ML Packages Offline Installation
- Configuring the Cluster
- Configuring the FQDN Post-installation
- Backing up and Restoring the Cluster
- Using the Monitoring Stack
- Setting up a Kerberos Authentication
- Provisioning a GPU
- Using the Configuration File
- Node Scheduling
- Migration and Upgrade
- Basic Troubleshooting Guide
Rollback on Error
AI Center Installation Guide
Last updated Mar 11, 2024
Rollback on Error
Note:
Reverting to the previous version may be needed in the following scenarios:
- There is failure during upgrade, which is beyond recovery;
- There is an accidental data loss or corruption;
- Upgraded cluster is unusable.
To roll back to a previous version, take the following steps:
- Make a copy of
cluster_config.json
. - Verify that the etcd backup data is present on
the primary server at the following location:
/mnt/backup/backup/<etcdBackupPath>/<node-name>/snapshots
.etcdBackupPath
– the same as the one specified inbackup.json
while enabling the backup.node-name
– the hostname of the server node.
- To check the
backupstore
volume backup directory, run the following command:ls /mnt/backup/backupstore
ls /mnt/backup/backupstore - Uninstall AI Center™ on all the nodes.
- Now restore to the previous version of AI Center. Make sure to follow the Backing up and restoring the cluster documentation available for that specific version.
- Once the restore is complete, make sure you
disable the maintenance
mode:
/path/to/old-installer/configureUiPathAS.sh disable-maintenance-mode
/path/to/old-installer/configureUiPathAS.sh disable-maintenance-mode - Verify that maintenance mode is disabled by
executing the following
command:
/path/to/old-installer/configureUiPathAS.sh is-maintenance-enabled
/path/to/old-installer/configureUiPathAS.sh is-maintenance-enabled - During the upgrade, scheduled backups were
disabled on the primary node. To enable them again, run the following
command:
/path/to/old-installer/configureUiPathAS.sh resume-scheduled-backups
/path/to/old-installer/configureUiPathAS.sh resume-scheduled-backups