卷无法装载，且仍处于附加/分离循环状态

描述

由于 Longhorn 错误，竞争条件会导致副本大小扩大。要检查卷是否面临此问题，请在 Longhorn 管理器日志中查找以下错误：

--  9776:2023-10-12T00:17:01.290911721Z [pvc-1f5d7c52-819a-4d4a-ac36-4f42541bdd25-e-41a36772] time="2023-10-12T00:17:01Z" level=info msg="Creating volume pvc-1f5d7c52-819a-4d4a-ac36-4f42541bdd25 controller with iSCSI target request timeout 15s and engine to replica(s) timeout 8s" 9777:2023-10-12T00:17:01.298832774Z [pvc-1f5d7c52-819a-4d4a-ac36-4f42541bdd25-e-41a36772] time="2023-10-12T00:17:01Z" level=info msg="Starting with replicas [\"tcp://10.42.2.132:10015\"]" 9780:2023-10-12T00:17:01.322556233Z [pvc-1f5d7c52-819a-4d4a-ac36-4f42541bdd25-e-41a36772] time="2023-10-12T00:17:01Z" level=warning msg="Backend tcp://10.42.2.132:10015 size does not match 3221225472 != 16106127360 in the engine initiation phase" 9782:2023-10-12T00:17:01.330974089Z [pvc-1f5d7c52-819a-4d4a-ac36-4f42541bdd25-e-41a36772] time="2023-10-12T00:17:01Z" level=error msg="no available backend due to replica error from the addresses [tcp://10.42.2.132:10015]"  ---

或者，检查 Longhorn 用户界面中是否显示卷处于展开状态。

解决方案

要解决此问题，请执行以下步骤：

1. 缩小应用程序/工作负载 Pod。

2. 将 PVC 展开到副本的大小。

3. 扩展应用程序/工作负载 Pod。

有关详细信息，请参阅 Longhorn 官方文档。