chronyd: add prefer and maxsources options
#25855
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* Added support for specifiying prefer option in server/pool/peer * Added support for specifying maxsources option for pool Maintainer: Miroslav Lichvar <[email protected]> Signed-off-by: Jakub Lewandowski <[email protected]>
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Maintainer: Miroslav Lichvar [email protected] (find it by checking history of the package Makefile)
Compile tested: n/a
Run tested: (arch, model, OpenWrt version) Intel(R) Core(TM) i3-4150T CPU @ 3.00GHz, LENOVO INVALID, OpenWrt 23.05.2 r23630-842932a63d; I have implemented the changes on my machine and tested if chrony config file is generated correctly,
Description:
Added support for specifying two options in sources definitions -
prefer(applicable for server, pool and peer) andmaxsources(applicable only for pool).Per chrony docs,
prefermakes chrony prefer given source over other selectable sources without the prefer option.I find it useful to not use pool.ntp.org if possible (as their website suggests) and to use servers with better stratum when possible.
Per chrony docs,
maxsourcessets the desired number of sources to be used from the pool. chronyd will repeatedly try to resolve the name until it gets this number of sources responding to requests. The default value is 4 and the maximum value is 16.This can be specified to not overuse (or overuse) pools as needed.0