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CONAP-329751:运行诸如NFS Connected客户端API之类的API命令会过度导致用户或ONTAP运行时太减

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ontap-9
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nas
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问题

  • 可能会出现 ESXi APD 或其他客户端延迟问题。qos
  • statisticsvolumelatency show 命令显示网络延迟较高。
  • 根据 sysstat-M 1 测试,豁免域中的 CPU 占用较高(请参阅https://kb.netapp.com/on-prem/ontap/...PU_utilization )。
  • 查看 CPU 使用率最高的进程,即 CPU 总占用率最高的 svc_queue_thread。
    集群::> 设置诊断
    集群::*>统计信息启动-对象进程-计数器pct_cpu-节点node1

警告:现有样本将被样本 ID::sample_310 覆盖。
你想继续吗?{y|n}:y
统计样本已删除,样本编号为:sample_310
正在开始针对样本 ID:sample_310 的统计信息收集
集群::*>统计信息显示-过滤器“pct_cpu>5”-字段值
对象实例计数器值
------- ------------------ ------- -----
..
进程“svc_queue_thread”pct_cpu 22%
进程“svc_queue_thread”pct_cpu 21%
...
集群::*>统计停止
  • 正在以高速率(20/分钟)驱动与 nfs 连接客户端相同的 REST API 调用。
    10.1.2.3 [2020年10月7日星期一 03:38:57.884998 2024 +0000] “GET /api/protocols/nfs/connected-clients?fields=server_ip%2Cclient_ip%2Cidle_duration&svm.name=svm1&volume.name=vol1 HTTP/1.1” 200 458 510788 - 0 + 127.0.0.1 -
  • sktrace 日志显示以下输出:
    2024-10-07T03:53:23Z 26130792276755676 [13:0] KSMF_SMF_SVC_NORM: process_request: 表:ksmf_nfs_show_clients 占用了至少一半的 kSMF 线程。活跃线程数:25

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