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Bug 1478768

Summary: [Docs][Planning] Recommend chrony for time synchronization.
Product: Red Hat Enterprise Virtualization Manager Reporter: Germano Veit Michel <gveitmic>
Component: DocumentationAssignee: Tahlia Richardson <trichard>
Status: CLOSED CURRENTRELEASE QA Contact: rhev-docs <rhev-docs>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 4.1.4CC: lsurette, rbalakri, srevivo, trichard, ykaul
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2017-08-23 05:36:24 UTC Type: Bug
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oVirt Team: Docs RHEL 7.3 requirements from Atomic Host:
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Description Germano Veit Michel 2017-08-07 01:16:09 UTC 
Description of problem:

In Bugzilla #1428419 we vdsm dependency switched from ntpd to chrony, as chrony is now the recommended option.

As per Bugzilla #1476650, both ntpd and chrony will be included in RHV-H, but the preferred option is chrony.

However, the documentation[1] does not mention any preference regrading what client to use (ntpd or chrony). The RHV documentation only talks about the need for time sync via NTP, which can be implemented by ntpd or chrony as both are NTP clients.

In EL7 we recommend chrony[2], so I believe the same recommendation should be made on RHV Docs [1] as well.

[1] https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html/installation_guide/chap-introduction_to_red_hat_enterprise_virtualization

[2] https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/ch-Configuring_NTP_Using_the_chrony_Suite.html#sect-Choosing_between_NTP_daemon
Comment 2 Tahlia Richardson 2017-08-23 05:36:24 UTC 
Now published in https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html/planning_and_prerequisites_guide/recommendations#general-recommendations