Starting from certain builds of GBase 8a 9.5.3, a new event‑driven method for replacing failed data nodes is available. Unlike the traditional redistribution‑based replacement, eventMode synchronises change events between nodes to restore data, eliminating the need for a full‑scale rebalancing operation.
Supported Versions
This feature was implemented in 9.5.3.28.18R1_Patch.8 and may be merged into later versions.
Test Cluster Setup
A 3‑node cluster with one management node, one coordinator, and three data nodes. node1 (10.0.2.152) is a pure data node that has been marked UNAVAILABLE due to a failure.
