How to check the NTP synchronization on my vCSA 6.5

[PGinhoux]

Hi,

Using the VAMI console, I have changed the NTP configuration from host to NTP and then set up a list of NTP servers (I do the similar configuration for my ESXi hosts).

Now I wanted to check that the synchronization with the NTP servers works fine, but I don't know how to proceed.

I found articles that talk about some command to use, like ntp.get, timesync.get, rntp stop/start; but none of these work.

Only the ntpq -p command returns a result.

Any thoughts on this topic?

Thanks in advance for yours answers.

Regards

Patrick

[SupreetK]

Check with the command <ntptime -o offset>. Parameter 'offset' should be the one to be looked at I think.

Cheers,

Supreet

[RickVerstegen]

Did you try service ntp status?

[PGinhoux]

To RickVerstegen :

The service ntpd status returns that the service is running :

service ntpd status

● ntpd.service - Network Time Service

   Loaded: loaded (/usr/lib/systemd/system/ntpd.service; enabled; vendor preset:enabled)

   Active: active (running) since Thu 2018-10-04 08:24:24 CEST; 24h ago

     Docs: man:ntpd

  Process: 24294 ExecStart=/usr/bin/ntpd -g -u ntp:ntp (code=exited, status=0/SUCCESS)

Main PID: 24298 (ntpd)

    Tasks: 2

   Memory: 1.2M

      CPU: 1.769s

   CGroup: /system.slice/ntpd.service

           └─24298 /usr/bin/ntpd -g -u ntp:ntp

To Supreet:

With the ntptime command without any parameters, I can get this result:

ntp_gettime() returns code 5 (ERROR)
  time df6183da.dcdac000  Fri, Oct  5 2018  8:31:54.862, (.862713),
  maximum error 16000000 us, estimated error 16 us, TAI offset 0
ntp_adjtime() returns code 5 (ERROR)
  modes 0x0 (),
  offset 0.000 us, frequency 0.000 ppm, interval 1 s,
  maximum error 16000000 us, estimated error 16 us,
  status 0x4041 (PLL,UNSYNC,MODE),
  time constant 7, precision 1.000 us, tolerance 500 ppm,

On the ntpq -p command that my vCSA attempts to get the time from ntp servers:

ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
opsipa21-prd1.l .INIT.          16 u    - 1024    0    0.000    0.000   0.000
opsipa19-prd1.b .INIT.          16 u    - 1024    0    0.000    0.000   0.000
opsipa31-prd.ro .INIT.          16 u    - 1024    0    0.000    0.000   0.000

The INIT refid value shows me that it still not get any response from the ntp servers.

Also my looking for other command or tools I can use on my vCSA to get more info to determine where the problem is.