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Please ensure that your current version is 3.1.0 or later. Directly upgrading from previous versions is not supported and needs to be done with a stepped approach. Please contact support if you are on a Squirro release older than 3.1.0. |
Table of Contents
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Before Upgrading
Maintenance window
A Squirro upgrade requires a downtime. This is typically quite short, but will still affect user experience for a moment. As a result, upgrades to production systems should only be run in a maintenance window.
Storage vs. Cluster Nodes
Squirro distinguishes between storage and cluster nodes. These can be installed on the same server or split up. Both can also be horizontally scaled and have multiple instances. For full details see How Squirro Scales.
Independent of the setup, in the instructions below always execute all the storage node updates first, and only then do the cluster node updates. This applies independent of whether cluster and storage node are on the same system, whether they are split into one server each, or if they have multiple instances each.
Offline Repository
If you have used the offline installation, or have an internal mirror of the Squirro yum repository, please make sure this is updated prior to starting the Squirro update.
Upgrading
Storage nodes
Run these instructions on every single server that has storage nodes installed before moving on to the cluster nodes.
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yum update java-1.8.0-openjdk yum update squirro-storage-node-users # Update storage node yum update squirro-storage-node |
Cluster nodes
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yum update java-1.8.0-openjdk yum update squirro-cluster-node-users yum update "squirro-*" |
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