无法在5秒内查询地址为x.x.x.x的NTP服务器"x"

适用场景

问题描述

• 添加NTP服务器时：

Cluster::*> cluster time-service ntp server create time.mydomain.com

Error: command failed: Unable to query NTP server "time.mydomain.com" with address 10.1.25.1 within 5 seconds.

• NTP服务器可从所有管理LIF执行Ping操作：

Cluster::*> net int show -role *mgmt*

  (network interface show)
       Logical   Status    Network       Current     Current Is
Vserver    Interface  Admin/Oper Address/Mask     Node      Port   Home
----------- ---------- ---------- ------------------ ------------- ------- ----
Cluster
       cluster_mgmt up/up   10.1.81.90/24    node01 e0M  true
       node01_mgmt up/up 10.1.81.91/24 node01 e0M true
       node02_mgmt up/up 10.1.81.92/24 node02 e0M true
3 entries were displayed.

• 使用集群管理LIF执行ping操作的示例：

Cluster::*> network ping -vserver Cluster -lif cluster_mgmt -destination 10.1.25.1
10.1.25.1 is alive

• 管理SVM中具有相同度量指标的多个默认路由：

Cluster::*> network route show -vserver Cluster

Vserver        Destination    Gateway      Metric
------------------- --------------- --------------- ------
Cluster
          0.0.0.0/0    10.1.81.254   20
          0.0.0.0/0     172.22.2.254   20
2 entries were displayed.

• 在systemshell中、可以看到所使用的网关正确：

Cluster::*> systemshell -node node01 -c sudo route get 10.1.25.1
  (system node systemshell)
  route to: ntp_server1.x.x

destination: default

    mask: default

   gateway: 10.1.81.254

     fib: 0

  interface: e0M

     ifa: node01.mgmt.x.x

    flags: <UP,GATEWAY,DONE,STATIC>

 recvpipe  sendpipe  ssthresh  rtt,msec   mtu     weight   expire

    0      0      0      0    1500     65      0

 

• 节点可以通过systemshell中的"ntpdate"命令访问NTP服务器：

::*> systemshell -node node01 -c ntpdate -d -q 10.1.25.1
  (system node systemshell)
26 Oct 20:20:48 ntpdate[24829]: ntpdate 4.2.8p14@1.3728-o Wed Jun 10 12:28:59 UTC 2020 (1)

Looking for host 10.1.25.1 and service ntp

10.1.25.1 reversed to ntp_server1.x.x

host found : ntp_server1.x.x

transmit(10.1.25.1)

receive(10.1.25.1)

transmit(10.1.25.1)

receive(10.1.25.1)

transmit(10.1.25.1)

receive(10.1.25.1)

transmit(10.1.25.1)

receive(10.1.25.1)

server 10.1.25.1, port 123

stratum 2, precision -25, leap 00, trust 000

refid [152.45.7.44], root delay 0.001450, root dispersion 0.000870

reference time:    e704136a.1d1c1bd9  Wed, Oct 26 2022 20:13:30.113

originate timestamp: e7041526.c80d59dd  Wed, Oct 26 2022 20:20:54.781

transmit timestamp:  e7041526.771ffef0  Wed, Oct 26 2022 20:20:54.465

filter delay:  0.02617   0.02612   0.02609   0.02605   

        ----     ----     ----     ----    

filter offset: +0.315928  +0.315880  +0.315877  +0.315872 

        ----     ----     ----     ----    

delay 0.02605, dispersion 0.00000, offset +0.315872

26 Oct 20:20:54 ntpdate[24829]: adjust time server 10.1.25.1 offset +0.315872 sec

 

• "ntpq"命令显示了与集群LIF同步的节点。

Cluster::*> systemshell -node node02 -c sudo ntpq -pn
  (system node systemshell)
   remote       refid    st t when poll reach   delay   offset  jitter

==============================================================================

*169.254.55.71  127.0.0.1     12 u  619 1024  377   0.097   -0.035   0.079

Cluster::*> systemshell -node node01 -c sudo ntpq -pn
  (system node systemshell)
   remote       refid    st t when poll reach   delay   offset  jitter

==============================================================================

*169.254.55.71  127.0.0.1     12 u  628 1024  377   0.097   -0.035   0.079