[8.19] Better handling of node ids from shutdown metadata (#128298) #128364
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Currently, the DiskThresholdMonitor code considers shutdown metadata to identify nodes that are being replaced. If the node-to-be-replaced (source) leaves the cluster before the corresponding shutdown metadata is removed from the cluster state, we can have a NPE. This PR adds a test for that and improves a bit code to handle node ids for source and target from shutdown metadata. Fixes elastic#100201
ldematte
added
:Core/Infra/Node Lifecycle
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Backports the following commits to 8.19: