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Neo4j Volume Expansion Overview

This page explains how KubeDB Ops-manager expands Neo4j data volumes using Neo4jOpsRequest.

Before You Begin

• You should be familiar with Neo4j.
• You should be familiar with Neo4jOpsRequest.
• Your StorageClass must support allowVolumeExpansion: true.

How Volume Expansion Works

The following diagram shows how KubeDB Ops-manager expands volume for a Neo4j database. Open the image in a new tab to see the enlarged version.

The volume expansion process consists of the following steps:

For a Neo4jOpsRequest with spec.type: VolumeExpansion, KubeDB Ops-manager:

1. Validates requested size from spec.volumeExpansion.server.
2. Validates expansion mode from spec.volumeExpansion.mode.
3. Pauses conflicting reconciliations.
4. Expands the target PVCs to the requested size.
5. Reconciles Neo4j state based on online/offline mode requirements.
6. Marks request Successful after PVC and pod health checks.

Next Step

Follow the detailed guide: Expand Neo4j Volume.