Ensure clocks are synchronized on all nodes

SrednjaNivo 1Automatskacassandra

Opis

Enabling Network Time Protocol (NTP), or some equivalent way, to keep clocks on all nodes in sync is critical. The benchmark rates this recommendation Manual; the automated check covers its objective pass criterion. Uses timedatectl (systemd); passes when the kernel clock is reported as NTP-synchronised by chronyd, ntpd or systemd-timesyncd. Compare offsets across nodes as well.

Kako se proverava

Metod provere: Komanda ljuske

shell

out=$(timedatectl show -p NTPSynchronized --value 2>/dev/null) || exit 1; printf '%s\n' "$out"

Očekivani izlaz: yes

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Install and enable chrony (or ntpd) on every node, pointing all nodes at the same time sources: systemctl enable --now chronyd.

Svojstva

Operativni sistemi: Bilo koji
Oznake: cassandratime
Referenca: CIS Apache Cassandra 5.0 Benchmark v1.1.0 - 1.6 Ensure clocks are synchronized on all nodes

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target cassandra