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Migration from Release 2.X to Release 3.X or Release 4.X

Overview

You can migrate to Release 3.X or 4.X from Release 2.X.

Paragon Insights (formerly HealthBot) Release 2.X was based entirely on Docker and Docker Compose for the management of the back end microservices for both single-node and multinode installations. Starting with Paragon Insights Release 3.0.0, Kubernetes is used to manage the Docker components in multinode installations. This change introduces some incompatibilities between the existing 2.X data and the 3.X and 4.X formats, specifically:

  • The underscore, “_”, character is no longer supported for Device Group or Network Group names.

  • Device Group and Network Group names are no longer case-sensitive. So, in 3.X and 4.X, the names DeviceGroup and deviceGroup are considered the same.

  • Differences in the time-series databases (TSDB) between the versions can cause problems.

We have implemented procedures for detecting these incompatibilities and transforming the data during specific data migration processes.

The following three use cases describe procedures for migrating the 2.X data into a 3.X installation or a 4.X installation.

Warning:

The procedures and functions outlined below are provided only on a best-effort basis. There is no guarantee that the data will migrate without some errors. In the event that the migration function encounters incompatibilities that it cannot resolve, an alert message regarding the need for manual intervention is displayed.

Ensure that you are familiar with Paragon Insights Installation Requirements and Using the Interactive Installers to Install or Upgrade to Paragon Insights Release 4.X. These topics provide greater detail about some of the steps outlined in the procedures below.

Case 1: Release 2.X Single-node (Docker Compose) to Release 3.X Single-node (Docker Compose) Migration

Before you begin, you must have:

The commands that you need to run to perform the migration on Ubuntu are:

Note:

Single-node Paragon Insights installations are not recommended for production systems. If you perform this type of upgrade, you cannot upgrade later to a multinode installation with Docker Compose.

Answer “n” to the question about using Kubernetes.

The setup procedure contains the functions needed to detect the incompatibilities and transform the data. If incompatibilities are discovered, you are asked to confirm the data transformation attempt.

Check to see if your data was properly migrated.

The commands that you need to run to perform the migration on CentOS are:

Answer “n” to the question about using Kubernetes.

The setup procedure contains the functions needed to detect the incompatibilities and transform the data. If incompatibilities are discovered, you are asked to confirm the data transformation attempt.

Check to see if your data was properly migrated.

Case 2: Automated Migration from 2.X to 3.X and 4.X (Kubernetes)

Before you begin, you must have:

When healthbot setup reports success, do not run healthbot start. Instead, run the following commands:

  • Run $ healthbot migrate --host <ip address or hostname of 2.X installation>

    For example: $ healthbot migrate --host 10.xx.xx.124

    The migration function immediately prompts you for an ssh username and password to use to connect to the 2.X server. The credentials you provide must have root privileges. Once connected to the 2.X server, it collects the following files needed for migration and places them in the appropriate directories on the new server:

    • Configuration files

    • TSDB files

    • Helper files

    Once collected, the migration function scans the configuration and TSDB files for incompatibilities. If any are found, it tries to transform them to make them compatible with 3.X or 4.X.

  • Run $ healthbot start
  • Check to see if your data migrated properly.

Case 3: Manual Migration from 2.X to 3.X and 4.X (Kubernetes)

Before you begin, you must have:

When healthbot setup reports success, do not run healthbot start. Instead, run the following commands on the 2.X server:

  • $ tar czf /tmp/influx.tgz /var/local/healthbot/etc/data/influxdb
  • $ tar czf /tmp/helper.tgz /var/local/healthbot/input
  • $ scp /tmp/helper.tgz /tmp/influx.tgz /var/local/healthbot/config/healthbot.json <username>@<ip or hostname of 3.x or 4.Xserver>:</writable/directory/on/3.x or 4.x/server>

    For example: $ scp /tmp/helper.tgz /tmp/influx.tgz /var/local/healthbot/config/healthbot.json user@10.100.101.12:/var/tmp/ where user is a valid username on the host with permission to write in the /var/tmp/ directory.

  • On the 3.X or 4.X server, run: $ healthbot migrate -c </path/to/healthbot.json> -t </path/to/influx.tgz> -hf </path/to/helper.tgz>

    For example: $ healthbot migrate -c /var/tmp/healthbot.json -t /var/tmp/influx.tgz -hf /var/tmp/helper.tgz

    The migration function scans the configuration and TSDB files for incompatibilities. If any are found, it requests confirmation from the user before it tries to transform them to make them compatible with 3.X or 4.X.

  • Run $ healthbot start
  • Check to see if your data migrated properly.