To ensure pods in a StatefulSet start sequentially and maintain persistent storage for a distributed database, which configuration is essential?

hard📝 Workflow Q8 of 15

Kubernetes - Persistent Storage

AUse <code>RollingUpdate</code> strategy with <code>podManagementPolicy</code> set to <code>Parallel</code>

BSet <code>podManagementPolicy</code> to <code>OrderedReady</code> and define <code>volumeClaimTemplates</code>

CDisable <code>volumeClaimTemplates</code> and use emptyDir volumes

DSet replicas to 1 and use a Deployment instead

Step-by-Step Solution

Solution:

Step 1: Understand podManagementPolicy
OrderedReady ensures pods start and terminate sequentially.
Step 2: Persistent storage
volumeClaimTemplates provide stable storage per pod.
Step 3: Exclude incorrect options
Parallel policy does not guarantee order; emptyDir is ephemeral; replicas=1 limits scale.
Final Answer:
Set podManagementPolicy to OrderedReady and define volumeClaimTemplates -> Option B
Quick Check:
OrderedReady + volumeClaimTemplates = ordered startup + persistent storage [OK]

Quick Trick: OrderedReady + volumeClaimTemplates = ordered startup + storage [OK]

Common Mistakes:

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