存储复制适配器：由于 "读取超时" API 调用，SyncOnce 操作失败

适用于

• ONTAP 存储复制适配器

问题

存储复制适配器 (SRA) 使用 SyncOnce  操作对受保护卷执行 SnapMirror 更新。  SyncOnce 操作在以下 SRM 工作流程中触发：

• 测试故障转移
• 计划迁移

在某些具有大量 SnapMirror 关系的环境中，可以看到以下问题：

• SyncOnce 操作失败，出现"未知"错误。  此错误的错误代码为 4001
• 当查看 vvolvp.log 中的操作时：
  • SnapMirror 更新实际上可能是成功的：
    • 2023-07-06T00:39:30,352Z (DEBUG)[pool-3-thread-1] [] updateSnapMirror:
2023-07-06T00:39:30,352Z (DEBUG)[pool-3-thread-1] [] Sending-1861: <snapmirror-update><destination-location>volume</destination-location><source-location>volume</source-location></snapmirror-update>
2023-07-06T00:39:30,739Z (DEBUG)[queue-manager] [task-manager-queue-manager] Task 10074301 is in state Running
2023-07-06T00:39:31,135Z (DEBUG)[pool-3-thread-1] [] Received-1861: <results status='passed'><result-operation-id>12345</result-operation-id><result-status>succeeded</result-status></results>
2023-07-06T00:39:31,135Z (DEBUG)[pool-3-thread-1] [] SnapMirror update started for cluster:volume
2023-07-06T00:39:31,135Z (DEBUG)[pool-3-thread-1] [] SnapMirror update returned status succeeded
  • 但是，在 SnapMirror 更新后有一个 snapmirror-get-iter API 调用超时：
    • 2023-07-06T00:39:31,635Z (DEBUG)[pool-3-thread-1] [] Sending-1862:<snapmirror-get-iter><max-records>500</max-records><query><snapmirror-info><relationship-group-type>none</relationship-group-type></snapmirror-info></query></snapmirror-get-iter>
..
2023-07-06T00:39:49,094Z (WARN )[pool-3-thread-1] [] invokeZAPI(0): failed OntapConnectionImpl{ipAddress=host.domain, userName=user, port=443, ssl=true} (IOException): Read timed out null
2023-07-06T00:39:49,094Z (DEBUG)[pool-3-thread-1] [] slow-zapi-1862 redacted.domain: 17654 ms
2023-07-06T00:39:49,095Z (ERROR)[pool-3-thread-1] [] com.netapp.offtap3.ontap.SvmOperationException: Could not get snapmirror-get-iter for com.netapp.offtap3.internal.ontap.VServerConnection@12345
..
2023-07-06T00:39:49,095Z (ERROR)[pool-3-thread-1] [] Caused by: com.netapp.offtap3.ontap.ApiFailedException: Read timed out (errno=5)