| Re: [chrony-users] Improvement request: network status should not affect chronyc |
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Tell it to just use IP addresses. The delay is while it it trying to figure
out the name of the source from the IP address I believe. I believe there is
flag for the sources command to tell it not to use the DNS
William G. Unruh __| Canadian Institute for|____ Tel: +1(604)822-3273
Physics&Astronomy _|___ Advanced Research _|____ Fax: +1(604)822-5324
UBC, Vancouver,BC _|_ Program in Cosmology |____ unruh@xxxxxxxxxxxxxx
Canada V6T 1Z1 ____|____ and Gravity ______|_ theory.physics.ubc.ca/
On Tue, 12 Dec 2023, Hollerer Franz, Schrack Seconet AG, Entwicklung wrote:
[CAUTION: Non-UBC Email]
I have an improvement request for chronyc, more precisely its sources command. I call "chronyc sources" via popen() from a C program to determine if the system time can be considered synchronized or not.
Unfortunately, if the network cable is disconnected, it takes about ~ 15 seconds for "chronyc sources" to complete. The initial connection to chronyd takes place immediately, also the header of the commands' output is print immediately. But then there is a very long delay till the line with the NTP server status is printed.
This means that the disconnected network cable has a non-negligible negative effect on the command line interface (CLI), although chronyd and chronyc run on the same host.
It would be nice if the network status would not affect chronyc, i.e., chronyc completes promptly.
Thanks
Franz Hollerer
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